dependencies: Update go-redis from v8 to v9 (#7041)

Updated so we can access the `SetAddrs()` method added to `*redis.Ring`
in `v9` in #7042.

Part of #5545
This commit is contained in:
Samantha 2023-08-22 13:06:25 -04:00 committed by GitHub
parent e7f78291ba
commit 4ed54ff9c6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
71 changed files with 10781 additions and 6204 deletions

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@ -7,7 +7,6 @@ import (
"testing"
"time"
"github.com/go-redis/redis/v8"
"github.com/jmhodges/clock"
capb "github.com/letsencrypt/boulder/ca/proto"
"github.com/letsencrypt/boulder/cmd"
@ -18,6 +17,7 @@ import (
"github.com/letsencrypt/boulder/sa"
"github.com/letsencrypt/boulder/test"
"github.com/letsencrypt/boulder/test/vars"
"github.com/redis/go-redis/v9"
"golang.org/x/crypto/ocsp"
"google.golang.org/grpc"
)

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@ -21,11 +21,11 @@ import (
"time"
"github.com/go-logr/stdr"
"github.com/go-redis/redis/v8"
"github.com/go-sql-driver/mysql"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/collectors"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/redis/go-redis/v9"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
"go.opentelemetry.io/otel/propagation"

3
go.mod
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@ -9,7 +9,6 @@ require (
github.com/aws/smithy-go v1.14.1
github.com/eggsampler/acme/v3 v3.4.0
github.com/go-logr/stdr v1.2.2
github.com/go-redis/redis/v8 v8.11.5
github.com/go-sql-driver/mysql v1.5.0
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
github.com/google/certificate-transparency-go v1.1.6
@ -24,6 +23,7 @@ require (
github.com/miekg/pkcs11 v1.1.1
github.com/prometheus/client_golang v1.15.1
github.com/prometheus/client_model v0.4.0
github.com/redis/go-redis/v9 v9.1.0
github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399
github.com/weppos/publicsuffix-go v0.30.1-0.20230620154423-38c92ad2d5c6
github.com/zmap/zcrypto v0.0.0-20230310154051-c8b263fd8300
@ -66,6 +66,7 @@ require (
github.com/cespare/xxhash/v2 v2.2.0 // indirect
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
github.com/felixge/httpsnoop v1.0.3 // indirect
github.com/fsnotify/fsnotify v1.4.9 // indirect
github.com/go-logr/logr v1.2.4 // indirect
github.com/go-playground/locales v0.14.1 // indirect
github.com/go-playground/universal-translator v0.18.1 // indirect

12
go.sum
View File

@ -90,6 +90,8 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bsm/ginkgo/v2 v2.9.5 h1:rtVBYPs3+TC5iLUVOis1B9tjLTup7Cj5IfzosKtvTJ0=
github.com/bsm/gomega v1.26.0 h1:LhQm+AFcgV2M0WyKroMASzAzCAJVpAxQXv4SaI9a69Y=
github.com/bwesterb/go-ristretto v1.2.0/go.mod h1:fUIoIZaG73pV5biE2Blr2xEzDoMj7NFEuV9ekS419A0=
github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
@ -137,6 +139,7 @@ github.com/felixge/httpsnoop v1.0.3 h1:s/nj+GCswXYzN5v2DpNMuMQYe+0DDwt5WVCU6CWBd
github.com/felixge/httpsnoop v1.0.3/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
@ -155,8 +158,6 @@ github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/o
github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI=
github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo=
github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
@ -292,10 +293,7 @@ github.com/mreiferson/go-httpclient v0.0.0-20160630210159-31f0106b4474/go.mod h1
github.com/mreiferson/go-httpclient v0.0.0-20201222173833-5e475fde3a4d/go.mod h1:OQA4XLvDbMgS8P0CevmM4m9Q3Jq4phKUzcocxuGJ5m8=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/nelsam/hel/v2 v2.3.2/go.mod h1:1ZTGfU2PFTOd5mx22i5O0Lc2GY933lQ2wb/ggy+rL3w=
github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
github.com/onsi/gomega v1.18.1 h1:M1GfJqGRrBrrGGsbxzV5dqM2U2ApXefZCQpkukxYRLE=
github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
github.com/pelletier/go-toml v1.9.3 h1:zeC5b1GviRUyKYd6OJPvBU/mcVDVoL1OhT17FCt5dSQ=
@ -324,6 +322,8 @@ github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7z
github.com/prometheus/procfs v0.9.0 h1:wzCHvIvM5SxWqYvwgVL7yJY8Lz3PKn49KQtpgMYJfhI=
github.com/prometheus/procfs v0.9.0/go.mod h1:+pB4zwohETzFnmlpe6yd2lSc+0/46IYZRB/chUwxUZY=
github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
github.com/redis/go-redis/v9 v9.1.0 h1:137FnGdk+EQdCbye1FW+qOEcY5S+SpY9T0NiuqvtfMY=
github.com/redis/go-redis/v9 v9.1.0/go.mod h1:urWj3He21Dj5k4TK1y59xH8Uj6ATueP8AH1cY3lZl4c=
github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
@ -534,6 +534,7 @@ golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191005200804-aed5e4c7ecf9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@ -755,7 +756,6 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

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@ -8,9 +8,9 @@ import (
bredis "github.com/letsencrypt/boulder/redis"
"github.com/go-redis/redis/v8"
"github.com/jmhodges/clock"
"github.com/prometheus/client_golang/prometheus"
"github.com/redis/go-redis/v9"
)
// Compile-time check that RedisSource implements the source interface.

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@ -9,8 +9,8 @@ import (
"github.com/letsencrypt/boulder/test"
"golang.org/x/net/context"
"github.com/go-redis/redis/v8"
"github.com/jmhodges/clock"
"github.com/redis/go-redis/v9"
)
func newTestRedisSource(clk clock.FakeClock, addrs map[string]string) *RedisSource {

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@ -1,8 +1,8 @@
package redis
import (
"github.com/go-redis/redis/v8"
"github.com/prometheus/client_golang/prometheus"
"github.com/redis/go-redis/v9"
)
// An interface satisfied by *redis.ClusterClient and also by a mock in our tests.

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@ -4,9 +4,9 @@ import (
"strings"
"testing"
"github.com/go-redis/redis/v8"
"github.com/letsencrypt/boulder/metrics"
"github.com/prometheus/client_golang/prometheus"
"github.com/redis/go-redis/v9"
)
type mockPoolStatGetter struct{}

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@ -8,9 +8,9 @@ import (
"fmt"
"strings"
"github.com/go-redis/redis/v8"
"github.com/jmhodges/clock"
"github.com/prometheus/client_golang/prometheus"
"github.com/redis/go-redis/v9"
"golang.org/x/crypto/ocsp"
"github.com/letsencrypt/boulder/cmd"
@ -92,6 +92,7 @@ type RedisConfig struct {
// Default is 1 minute. -1 disables idle connections reaper,
// but idle connections are still discarded by the client
// if IdleTimeout is set.
// Deprecated: This field has been deprecated and will be removed.
IdleCheckFrequency config.Duration `validate:"-"`
}
@ -122,10 +123,9 @@ func MakeClient(c *RedisConfig, clk clock.Clock, stats prometheus.Registerer) (*
PoolSize: c.PoolSize,
MinIdleConns: c.MinIdleConns,
MaxConnAge: c.MaxConnAge.Duration,
ConnMaxLifetime: c.MaxConnAge.Duration,
PoolTimeout: c.PoolTimeout.Duration,
IdleTimeout: c.IdleTimeout.Duration,
IdleCheckFrequency: c.IdleCheckFrequency.Duration,
ConnMaxIdleTime: c.IdleTimeout.Duration,
})
return rocsp.NewWritingClient(rdb, c.Timeout.Duration, clk, stats), nil
}
@ -162,10 +162,9 @@ func MakeReadClient(c *RedisConfig, clk clock.Clock, stats prometheus.Registerer
PoolSize: c.PoolSize,
MinIdleConns: c.MinIdleConns,
MaxConnAge: c.MaxConnAge.Duration,
ConnMaxLifetime: c.MaxConnAge.Duration,
PoolTimeout: c.PoolTimeout.Duration,
IdleTimeout: c.IdleTimeout.Duration,
IdleCheckFrequency: c.IdleCheckFrequency.Duration,
ConnMaxIdleTime: c.IdleTimeout.Duration,
})
return rocsp.NewReadingClient(rdb, c.Timeout.Duration, clk, stats), nil
}

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@ -10,9 +10,9 @@ import (
"github.com/letsencrypt/boulder/core"
bredis "github.com/letsencrypt/boulder/redis"
"github.com/go-redis/redis/v8"
"github.com/jmhodges/clock"
"github.com/prometheus/client_golang/prometheus"
"github.com/redis/go-redis/v9"
"golang.org/x/crypto/ocsp"
)

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@ -8,10 +8,10 @@ import (
"testing"
"time"
"github.com/go-redis/redis/v8"
"github.com/jmhodges/clock"
"github.com/letsencrypt/boulder/cmd"
"github.com/letsencrypt/boulder/metrics"
"github.com/redis/go-redis/v9"
"golang.org/x/crypto/ocsp"
)

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@ -1,3 +0,0 @@
*.rdb
testdata/*/
.idea/

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@ -1,177 +0,0 @@
## [8.11.5](https://github.com/go-redis/redis/compare/v8.11.4...v8.11.5) (2022-03-17)
### Bug Fixes
* add missing Expire methods to Cmdable ([17e3b43](https://github.com/go-redis/redis/commit/17e3b43879d516437ada71cf9c0deac6a382ed9a))
* add whitespace for avoid unlikely colisions ([7f7c181](https://github.com/go-redis/redis/commit/7f7c1817617cfec909efb13d14ad22ef05a6ad4c))
* example/otel compile error ([#2028](https://github.com/go-redis/redis/issues/2028)) ([187c07c](https://github.com/go-redis/redis/commit/187c07c41bf68dc3ab280bc3a925e960bbef6475))
* **extra/redisotel:** set span.kind attribute to client ([065b200](https://github.com/go-redis/redis/commit/065b200070b41e6e949710b4f9e01b50ccc60ab2))
* format ([96f53a0](https://github.com/go-redis/redis/commit/96f53a0159a28affa94beec1543a62234e7f8b32))
* invalid type assert in stringArg ([de6c131](https://github.com/go-redis/redis/commit/de6c131865b8263400c8491777b295035f2408e4))
* rename Golang to Go ([#2030](https://github.com/go-redis/redis/issues/2030)) ([b82a2d9](https://github.com/go-redis/redis/commit/b82a2d9d4d2de7b7cbe8fcd4895be62dbcacacbc))
* set timeout for WAIT command. Fixes [#1963](https://github.com/go-redis/redis/issues/1963) ([333fee1](https://github.com/go-redis/redis/commit/333fee1a8fd98a2fbff1ab187c1b03246a7eb01f))
* update some argument counts in pre-allocs ([f6974eb](https://github.com/go-redis/redis/commit/f6974ebb5c40a8adf90d2cacab6dc297f4eba4c2))
### Features
* Add redis v7's NX, XX, GT, LT expire variants ([e19bbb2](https://github.com/go-redis/redis/commit/e19bbb26e2e395c6e077b48d80d79e99f729a8b8))
* add support for acl sentinel auth in universal client ([ab0ccc4](https://github.com/go-redis/redis/commit/ab0ccc47413f9b2a6eabc852fed5005a3ee1af6e))
* add support for COPY command ([#2016](https://github.com/go-redis/redis/issues/2016)) ([730afbc](https://github.com/go-redis/redis/commit/730afbcffb93760e8a36cc06cfe55ab102b693a7))
* add support for passing extra attributes added to spans ([39faaa1](https://github.com/go-redis/redis/commit/39faaa171523834ba527c9789710c4fde87f5a2e))
* add support for time.Duration write and scan ([2f1b74e](https://github.com/go-redis/redis/commit/2f1b74e20cdd7719b2aecf0768d3e3ae7c3e781b))
* **redisotel:** ability to override TracerProvider ([#1998](https://github.com/go-redis/redis/issues/1998)) ([bf8d4aa](https://github.com/go-redis/redis/commit/bf8d4aa60c00366cda2e98c3ddddc8cf68507417))
* set net.peer.name and net.peer.port in otel example ([69bf454](https://github.com/go-redis/redis/commit/69bf454f706204211cd34835f76b2e8192d3766d))
## [8.11.4](https://github.com/go-redis/redis/compare/v8.11.3...v8.11.4) (2021-10-04)
### Features
* add acl auth support for sentinels ([f66582f](https://github.com/go-redis/redis/commit/f66582f44f3dc3a4705a5260f982043fde4aa634))
* add Cmd.{String,Int,Float,Bool}Slice helpers and an example ([5d3d293](https://github.com/go-redis/redis/commit/5d3d293cc9c60b90871e2420602001463708ce24))
* add SetVal method for each command ([168981d](https://github.com/go-redis/redis/commit/168981da2d84ee9e07d15d3e74d738c162e264c4))
## v8.11
- Remove OpenTelemetry metrics.
- Supports more redis commands and options.
## v8.10
- Removed extra OpenTelemetry spans from go-redis core. Now go-redis instrumentation only adds a
single span with a Redis command (instead of 4 spans). There are multiple reasons behind this
decision:
- Traces become smaller and less noisy.
- It may be costly to process those 3 extra spans for each query.
- go-redis no longer depends on OpenTelemetry.
Eventually we hope to replace the information that we no longer collect with OpenTelemetry
Metrics.
## v8.9
- Changed `PubSub.Channel` to only rely on `Ping` result. You can now use `WithChannelSize`,
`WithChannelHealthCheckInterval`, and `WithChannelSendTimeout` to override default settings.
## v8.8
- To make updating easier, extra modules now have the same version as go-redis does. That means that
you need to update your imports:
```
github.com/go-redis/redis/extra/redisotel -> github.com/go-redis/redis/extra/redisotel/v8
github.com/go-redis/redis/extra/rediscensus -> github.com/go-redis/redis/extra/rediscensus/v8
```
## v8.5
- [knadh](https://github.com/knadh) contributed long-awaited ability to scan Redis Hash into a
struct:
```go
err := rdb.HGetAll(ctx, "hash").Scan(&data)
err := rdb.MGet(ctx, "key1", "key2").Scan(&data)
```
- Please check [redismock](https://github.com/go-redis/redismock) by
[monkey92t](https://github.com/monkey92t) if you are looking for mocking Redis Client.
## v8
- All commands require `context.Context` as a first argument, e.g. `rdb.Ping(ctx)`. If you are not
using `context.Context` yet, the simplest option is to define global package variable
`var ctx = context.TODO()` and use it when `ctx` is required.
- Full support for `context.Context` canceling.
- Added `redis.NewFailoverClusterClient` that supports routing read-only commands to a slave node.
- Added `redisext.OpenTemetryHook` that adds
[Redis OpenTelemetry instrumentation](https://redis.uptrace.dev/tracing/).
- Redis slow log support.
- Ring uses Rendezvous Hashing by default which provides better distribution. You need to move
existing keys to a new location or keys will be inaccessible / lost. To use old hashing scheme:
```go
import "github.com/golang/groupcache/consistenthash"
ring := redis.NewRing(&redis.RingOptions{
NewConsistentHash: func() {
return consistenthash.New(100, crc32.ChecksumIEEE)
},
})
```
- `ClusterOptions.MaxRedirects` default value is changed from 8 to 3.
- `Options.MaxRetries` default value is changed from 0 to 3.
- `Cluster.ForEachNode` is renamed to `ForEachShard` for consistency with `Ring`.
## v7.3
- New option `Options.Username` which causes client to use `AuthACL`. Be aware if your connection
URL contains username.
## v7.2
- Existing `HMSet` is renamed to `HSet` and old deprecated `HMSet` is restored for Redis 3 users.
## v7.1
- Existing `Cmd.String` is renamed to `Cmd.Text`. New `Cmd.String` implements `fmt.Stringer`
interface.
## v7
- _Important_. Tx.Pipeline now returns a non-transactional pipeline. Use Tx.TxPipeline for a
transactional pipeline.
- WrapProcess is replaced with more convenient AddHook that has access to context.Context.
- WithContext now can not be used to create a shallow copy of the client.
- New methods ProcessContext, DoContext, and ExecContext.
- Client respects Context.Deadline when setting net.Conn deadline.
- Client listens on Context.Done while waiting for a connection from the pool and returns an error
when context context is cancelled.
- Add PubSub.ChannelWithSubscriptions that sends `*Subscription` in addition to `*Message` to allow
detecting reconnections.
- `time.Time` is now marshalled in RFC3339 format. `rdb.Get("foo").Time()` helper is added to parse
the time.
- `SetLimiter` is removed and added `Options.Limiter` instead.
- `HMSet` is deprecated as of Redis v4.
## v6.15
- Cluster and Ring pipelines process commands for each node in its own goroutine.
## 6.14
- Added Options.MinIdleConns.
- Added Options.MaxConnAge.
- PoolStats.FreeConns is renamed to PoolStats.IdleConns.
- Add Client.Do to simplify creating custom commands.
- Add Cmd.String, Cmd.Int, Cmd.Int64, Cmd.Uint64, Cmd.Float64, and Cmd.Bool helpers.
- Lower memory usage.
## v6.13
- Ring got new options called `HashReplicas` and `Hash`. It is recommended to set
`HashReplicas = 1000` for better keys distribution between shards.
- Cluster client was optimized to use much less memory when reloading cluster state.
- PubSub.ReceiveMessage is re-worked to not use ReceiveTimeout so it does not lose data when timeout
occurres. In most cases it is recommended to use PubSub.Channel instead.
- Dialer.KeepAlive is set to 5 minutes by default.
## v6.12
- ClusterClient got new option called `ClusterSlots` which allows to build cluster of normal Redis
Servers that don't have cluster mode enabled. See
https://godoc.org/github.com/go-redis/redis#example-NewClusterClient--ManualSetup

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@ -1,35 +0,0 @@
PACKAGE_DIRS := $(shell find . -mindepth 2 -type f -name 'go.mod' -exec dirname {} \; | sort)
test: testdeps
go test ./...
go test ./... -short -race
go test ./... -run=NONE -bench=. -benchmem
env GOOS=linux GOARCH=386 go test ./...
go vet
testdeps: testdata/redis/src/redis-server
bench: testdeps
go test ./... -test.run=NONE -test.bench=. -test.benchmem
.PHONY: all test testdeps bench
testdata/redis:
mkdir -p $@
wget -qO- https://download.redis.io/releases/redis-6.2.5.tar.gz | tar xvz --strip-components=1 -C $@
testdata/redis/src/redis-server: testdata/redis
cd $< && make all
fmt:
gofmt -w -s ./
goimports -w -local github.com/go-redis/redis ./
go_mod_tidy:
go get -u && go mod tidy
set -e; for dir in $(PACKAGE_DIRS); do \
echo "go mod tidy in $${dir}"; \
(cd "$${dir}" && \
go get -u && \
go mod tidy); \
done

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@ -1,175 +0,0 @@
# Redis client for Go
![build workflow](https://github.com/go-redis/redis/actions/workflows/build.yml/badge.svg)
[![PkgGoDev](https://pkg.go.dev/badge/github.com/go-redis/redis/v8)](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc)
[![Documentation](https://img.shields.io/badge/redis-documentation-informational)](https://redis.uptrace.dev/)
go-redis is brought to you by :star: [**uptrace/uptrace**](https://github.com/uptrace/uptrace).
Uptrace is an open source and blazingly fast **distributed tracing** backend powered by
OpenTelemetry and ClickHouse. Give it a star as well!
## Resources
- [Discussions](https://github.com/go-redis/redis/discussions)
- [Documentation](https://redis.uptrace.dev)
- [Reference](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc)
- [Examples](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#pkg-examples)
- [RealWorld example app](https://github.com/uptrace/go-treemux-realworld-example-app)
Other projects you may like:
- [Bun](https://bun.uptrace.dev) - fast and simple SQL client for PostgreSQL, MySQL, and SQLite.
- [BunRouter](https://bunrouter.uptrace.dev/) - fast and flexible HTTP router for Go.
## Ecosystem
- [Redis Mock](https://github.com/go-redis/redismock)
- [Distributed Locks](https://github.com/bsm/redislock)
- [Redis Cache](https://github.com/go-redis/cache)
- [Rate limiting](https://github.com/go-redis/redis_rate)
## Features
- Redis 3 commands except QUIT, MONITOR, and SYNC.
- Automatic connection pooling with
[circuit breaker](https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern) support.
- [Pub/Sub](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#PubSub).
- [Transactions](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client-TxPipeline).
- [Pipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client.Pipeline) and
[TxPipeline](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-Client.TxPipeline).
- [Scripting](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Script).
- [Timeouts](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#Options).
- [Redis Sentinel](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewFailoverClient).
- [Redis Cluster](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewClusterClient).
- [Cluster of Redis Servers](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-NewClusterClient-ManualSetup)
without using cluster mode and Redis Sentinel.
- [Ring](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#NewRing).
- [Instrumentation](https://pkg.go.dev/github.com/go-redis/redis/v8?tab=doc#example-package-Instrumentation).
## Installation
go-redis supports 2 last Go versions and requires a Go version with
[modules](https://github.com/golang/go/wiki/Modules) support. So make sure to initialize a Go
module:
```shell
go mod init github.com/my/repo
```
And then install go-redis/v8 (note _v8_ in the import; omitting it is a popular mistake):
```shell
go get github.com/go-redis/redis/v8
```
## Quickstart
```go
import (
"context"
"github.com/go-redis/redis/v8"
"fmt"
)
var ctx = context.Background()
func ExampleClient() {
rdb := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
err := rdb.Set(ctx, "key", "value", 0).Err()
if err != nil {
panic(err)
}
val, err := rdb.Get(ctx, "key").Result()
if err != nil {
panic(err)
}
fmt.Println("key", val)
val2, err := rdb.Get(ctx, "key2").Result()
if err == redis.Nil {
fmt.Println("key2 does not exist")
} else if err != nil {
panic(err)
} else {
fmt.Println("key2", val2)
}
// Output: key value
// key2 does not exist
}
```
## Look and feel
Some corner cases:
```go
// SET key value EX 10 NX
set, err := rdb.SetNX(ctx, "key", "value", 10*time.Second).Result()
// SET key value keepttl NX
set, err := rdb.SetNX(ctx, "key", "value", redis.KeepTTL).Result()
// SORT list LIMIT 0 2 ASC
vals, err := rdb.Sort(ctx, "list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
vals, err := rdb.ZRangeByScoreWithScores(ctx, "zset", &redis.ZRangeBy{
Min: "-inf",
Max: "+inf",
Offset: 0,
Count: 2,
}).Result()
// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
vals, err := rdb.ZInterStore(ctx, "out", &redis.ZStore{
Keys: []string{"zset1", "zset2"},
Weights: []int64{2, 3}
}).Result()
// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
vals, err := rdb.Eval(ctx, "return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
// custom command
res, err := rdb.Do(ctx, "set", "key", "value").Result()
```
## Run the test
go-redis will start a redis-server and run the test cases.
The paths of redis-server bin file and redis config file are defined in `main_test.go`:
```
var (
redisServerBin, _ = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server"))
redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis", "redis.conf"))
)
```
For local testing, you can change the variables to refer to your local files, or create a soft link
to the corresponding folder for redis-server and copy the config file to `testdata/redis/`:
```
ln -s /usr/bin/redis-server ./go-redis/testdata/redis/src
cp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/
```
Lastly, run:
```
go test
```
## Contributors
Thanks to all the people who already contributed!
<a href="https://github.com/go-redis/redis/graphs/contributors">
<img src="https://contributors-img.web.app/image?repo=go-redis/redis" />
</a>

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@ -1,332 +0,0 @@
package proto
import (
"bufio"
"fmt"
"io"
"github.com/go-redis/redis/v8/internal/util"
)
// redis resp protocol data type.
const (
ErrorReply = '-'
StatusReply = '+'
IntReply = ':'
StringReply = '$'
ArrayReply = '*'
)
//------------------------------------------------------------------------------
const Nil = RedisError("redis: nil") // nolint:errname
type RedisError string
func (e RedisError) Error() string { return string(e) }
func (RedisError) RedisError() {}
//------------------------------------------------------------------------------
type MultiBulkParse func(*Reader, int64) (interface{}, error)
type Reader struct {
rd *bufio.Reader
_buf []byte
}
func NewReader(rd io.Reader) *Reader {
return &Reader{
rd: bufio.NewReader(rd),
_buf: make([]byte, 64),
}
}
func (r *Reader) Buffered() int {
return r.rd.Buffered()
}
func (r *Reader) Peek(n int) ([]byte, error) {
return r.rd.Peek(n)
}
func (r *Reader) Reset(rd io.Reader) {
r.rd.Reset(rd)
}
func (r *Reader) ReadLine() ([]byte, error) {
line, err := r.readLine()
if err != nil {
return nil, err
}
if isNilReply(line) {
return nil, Nil
}
return line, nil
}
// readLine that returns an error if:
// - there is a pending read error;
// - or line does not end with \r\n.
func (r *Reader) readLine() ([]byte, error) {
b, err := r.rd.ReadSlice('\n')
if err != nil {
if err != bufio.ErrBufferFull {
return nil, err
}
full := make([]byte, len(b))
copy(full, b)
b, err = r.rd.ReadBytes('\n')
if err != nil {
return nil, err
}
full = append(full, b...) //nolint:makezero
b = full
}
if len(b) <= 2 || b[len(b)-1] != '\n' || b[len(b)-2] != '\r' {
return nil, fmt.Errorf("redis: invalid reply: %q", b)
}
return b[:len(b)-2], nil
}
func (r *Reader) ReadReply(m MultiBulkParse) (interface{}, error) {
line, err := r.ReadLine()
if err != nil {
return nil, err
}
switch line[0] {
case ErrorReply:
return nil, ParseErrorReply(line)
case StatusReply:
return string(line[1:]), nil
case IntReply:
return util.ParseInt(line[1:], 10, 64)
case StringReply:
return r.readStringReply(line)
case ArrayReply:
n, err := parseArrayLen(line)
if err != nil {
return nil, err
}
if m == nil {
err := fmt.Errorf("redis: got %.100q, but multi bulk parser is nil", line)
return nil, err
}
return m(r, n)
}
return nil, fmt.Errorf("redis: can't parse %.100q", line)
}
func (r *Reader) ReadIntReply() (int64, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case ErrorReply:
return 0, ParseErrorReply(line)
case IntReply:
return util.ParseInt(line[1:], 10, 64)
default:
return 0, fmt.Errorf("redis: can't parse int reply: %.100q", line)
}
}
func (r *Reader) ReadString() (string, error) {
line, err := r.ReadLine()
if err != nil {
return "", err
}
switch line[0] {
case ErrorReply:
return "", ParseErrorReply(line)
case StringReply:
return r.readStringReply(line)
case StatusReply:
return string(line[1:]), nil
case IntReply:
return string(line[1:]), nil
default:
return "", fmt.Errorf("redis: can't parse reply=%.100q reading string", line)
}
}
func (r *Reader) readStringReply(line []byte) (string, error) {
if isNilReply(line) {
return "", Nil
}
replyLen, err := util.Atoi(line[1:])
if err != nil {
return "", err
}
b := make([]byte, replyLen+2)
_, err = io.ReadFull(r.rd, b)
if err != nil {
return "", err
}
return util.BytesToString(b[:replyLen]), nil
}
func (r *Reader) ReadArrayReply(m MultiBulkParse) (interface{}, error) {
line, err := r.ReadLine()
if err != nil {
return nil, err
}
switch line[0] {
case ErrorReply:
return nil, ParseErrorReply(line)
case ArrayReply:
n, err := parseArrayLen(line)
if err != nil {
return nil, err
}
return m(r, n)
default:
return nil, fmt.Errorf("redis: can't parse array reply: %.100q", line)
}
}
func (r *Reader) ReadArrayLen() (int, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case ErrorReply:
return 0, ParseErrorReply(line)
case ArrayReply:
n, err := parseArrayLen(line)
if err != nil {
return 0, err
}
return int(n), nil
default:
return 0, fmt.Errorf("redis: can't parse array reply: %.100q", line)
}
}
func (r *Reader) ReadScanReply() ([]string, uint64, error) {
n, err := r.ReadArrayLen()
if err != nil {
return nil, 0, err
}
if n != 2 {
return nil, 0, fmt.Errorf("redis: got %d elements in scan reply, expected 2", n)
}
cursor, err := r.ReadUint()
if err != nil {
return nil, 0, err
}
n, err = r.ReadArrayLen()
if err != nil {
return nil, 0, err
}
keys := make([]string, n)
for i := 0; i < n; i++ {
key, err := r.ReadString()
if err != nil {
return nil, 0, err
}
keys[i] = key
}
return keys, cursor, err
}
func (r *Reader) ReadInt() (int64, error) {
b, err := r.readTmpBytesReply()
if err != nil {
return 0, err
}
return util.ParseInt(b, 10, 64)
}
func (r *Reader) ReadUint() (uint64, error) {
b, err := r.readTmpBytesReply()
if err != nil {
return 0, err
}
return util.ParseUint(b, 10, 64)
}
func (r *Reader) ReadFloatReply() (float64, error) {
b, err := r.readTmpBytesReply()
if err != nil {
return 0, err
}
return util.ParseFloat(b, 64)
}
func (r *Reader) readTmpBytesReply() ([]byte, error) {
line, err := r.ReadLine()
if err != nil {
return nil, err
}
switch line[0] {
case ErrorReply:
return nil, ParseErrorReply(line)
case StringReply:
return r._readTmpBytesReply(line)
case StatusReply:
return line[1:], nil
default:
return nil, fmt.Errorf("redis: can't parse string reply: %.100q", line)
}
}
func (r *Reader) _readTmpBytesReply(line []byte) ([]byte, error) {
if isNilReply(line) {
return nil, Nil
}
replyLen, err := util.Atoi(line[1:])
if err != nil {
return nil, err
}
buf := r.buf(replyLen + 2)
_, err = io.ReadFull(r.rd, buf)
if err != nil {
return nil, err
}
return buf[:replyLen], nil
}
func (r *Reader) buf(n int) []byte {
if n <= cap(r._buf) {
return r._buf[:n]
}
d := n - cap(r._buf)
r._buf = append(r._buf, make([]byte, d)...)
return r._buf
}
func isNilReply(b []byte) bool {
return len(b) == 3 &&
(b[0] == StringReply || b[0] == ArrayReply) &&
b[1] == '-' && b[2] == '1'
}
func ParseErrorReply(line []byte) error {
return RedisError(string(line[1:]))
}
func parseArrayLen(line []byte) (int64, error) {
if isNilReply(line) {
return 0, Nil
}
return util.ParseInt(line[1:], 10, 64)
}

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@ -1,12 +0,0 @@
//go:build appengine
// +build appengine
package internal
func String(b []byte) string {
return string(b)
}
func Bytes(s string) []byte {
return []byte(s)
}

View File

@ -1,21 +0,0 @@
//go:build !appengine
// +build !appengine
package internal
import "unsafe"
// String converts byte slice to string.
func String(b []byte) string {
return *(*string)(unsafe.Pointer(&b))
}
// Bytes converts string to byte slice.
func Bytes(s string) []byte {
return *(*[]byte)(unsafe.Pointer(
&struct {
string
Cap int
}{s, len(s)},
))
}

View File

@ -1,773 +0,0 @@
package redis
import (
"context"
"errors"
"fmt"
"sync/atomic"
"time"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
)
// Nil reply returned by Redis when key does not exist.
const Nil = proto.Nil
func SetLogger(logger internal.Logging) {
internal.Logger = logger
}
//------------------------------------------------------------------------------
type Hook interface {
BeforeProcess(ctx context.Context, cmd Cmder) (context.Context, error)
AfterProcess(ctx context.Context, cmd Cmder) error
BeforeProcessPipeline(ctx context.Context, cmds []Cmder) (context.Context, error)
AfterProcessPipeline(ctx context.Context, cmds []Cmder) error
}
type hooks struct {
hooks []Hook
}
func (hs *hooks) lock() {
hs.hooks = hs.hooks[:len(hs.hooks):len(hs.hooks)]
}
func (hs hooks) clone() hooks {
clone := hs
clone.lock()
return clone
}
func (hs *hooks) AddHook(hook Hook) {
hs.hooks = append(hs.hooks, hook)
}
func (hs hooks) process(
ctx context.Context, cmd Cmder, fn func(context.Context, Cmder) error,
) error {
if len(hs.hooks) == 0 {
err := fn(ctx, cmd)
cmd.SetErr(err)
return err
}
var hookIndex int
var retErr error
for ; hookIndex < len(hs.hooks) && retErr == nil; hookIndex++ {
ctx, retErr = hs.hooks[hookIndex].BeforeProcess(ctx, cmd)
if retErr != nil {
cmd.SetErr(retErr)
}
}
if retErr == nil {
retErr = fn(ctx, cmd)
cmd.SetErr(retErr)
}
for hookIndex--; hookIndex >= 0; hookIndex-- {
if err := hs.hooks[hookIndex].AfterProcess(ctx, cmd); err != nil {
retErr = err
cmd.SetErr(retErr)
}
}
return retErr
}
func (hs hooks) processPipeline(
ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
) error {
if len(hs.hooks) == 0 {
err := fn(ctx, cmds)
return err
}
var hookIndex int
var retErr error
for ; hookIndex < len(hs.hooks) && retErr == nil; hookIndex++ {
ctx, retErr = hs.hooks[hookIndex].BeforeProcessPipeline(ctx, cmds)
if retErr != nil {
setCmdsErr(cmds, retErr)
}
}
if retErr == nil {
retErr = fn(ctx, cmds)
}
for hookIndex--; hookIndex >= 0; hookIndex-- {
if err := hs.hooks[hookIndex].AfterProcessPipeline(ctx, cmds); err != nil {
retErr = err
setCmdsErr(cmds, retErr)
}
}
return retErr
}
func (hs hooks) processTxPipeline(
ctx context.Context, cmds []Cmder, fn func(context.Context, []Cmder) error,
) error {
cmds = wrapMultiExec(ctx, cmds)
return hs.processPipeline(ctx, cmds, fn)
}
//------------------------------------------------------------------------------
type baseClient struct {
opt *Options
connPool pool.Pooler
onClose func() error // hook called when client is closed
}
func newBaseClient(opt *Options, connPool pool.Pooler) *baseClient {
return &baseClient{
opt: opt,
connPool: connPool,
}
}
func (c *baseClient) clone() *baseClient {
clone := *c
return &clone
}
func (c *baseClient) withTimeout(timeout time.Duration) *baseClient {
opt := c.opt.clone()
opt.ReadTimeout = timeout
opt.WriteTimeout = timeout
clone := c.clone()
clone.opt = opt
return clone
}
func (c *baseClient) String() string {
return fmt.Sprintf("Redis<%s db:%d>", c.getAddr(), c.opt.DB)
}
func (c *baseClient) newConn(ctx context.Context) (*pool.Conn, error) {
cn, err := c.connPool.NewConn(ctx)
if err != nil {
return nil, err
}
err = c.initConn(ctx, cn)
if err != nil {
_ = c.connPool.CloseConn(cn)
return nil, err
}
return cn, nil
}
func (c *baseClient) getConn(ctx context.Context) (*pool.Conn, error) {
if c.opt.Limiter != nil {
err := c.opt.Limiter.Allow()
if err != nil {
return nil, err
}
}
cn, err := c._getConn(ctx)
if err != nil {
if c.opt.Limiter != nil {
c.opt.Limiter.ReportResult(err)
}
return nil, err
}
return cn, nil
}
func (c *baseClient) _getConn(ctx context.Context) (*pool.Conn, error) {
cn, err := c.connPool.Get(ctx)
if err != nil {
return nil, err
}
if cn.Inited {
return cn, nil
}
if err := c.initConn(ctx, cn); err != nil {
c.connPool.Remove(ctx, cn, err)
if err := errors.Unwrap(err); err != nil {
return nil, err
}
return nil, err
}
return cn, nil
}
func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
if cn.Inited {
return nil
}
cn.Inited = true
if c.opt.Password == "" &&
c.opt.DB == 0 &&
!c.opt.readOnly &&
c.opt.OnConnect == nil {
return nil
}
connPool := pool.NewSingleConnPool(c.connPool, cn)
conn := newConn(ctx, c.opt, connPool)
_, err := conn.Pipelined(ctx, func(pipe Pipeliner) error {
if c.opt.Password != "" {
if c.opt.Username != "" {
pipe.AuthACL(ctx, c.opt.Username, c.opt.Password)
} else {
pipe.Auth(ctx, c.opt.Password)
}
}
if c.opt.DB > 0 {
pipe.Select(ctx, c.opt.DB)
}
if c.opt.readOnly {
pipe.ReadOnly(ctx)
}
return nil
})
if err != nil {
return err
}
if c.opt.OnConnect != nil {
return c.opt.OnConnect(ctx, conn)
}
return nil
}
func (c *baseClient) releaseConn(ctx context.Context, cn *pool.Conn, err error) {
if c.opt.Limiter != nil {
c.opt.Limiter.ReportResult(err)
}
if isBadConn(err, false, c.opt.Addr) {
c.connPool.Remove(ctx, cn, err)
} else {
c.connPool.Put(ctx, cn)
}
}
func (c *baseClient) withConn(
ctx context.Context, fn func(context.Context, *pool.Conn) error,
) error {
cn, err := c.getConn(ctx)
if err != nil {
return err
}
defer func() {
c.releaseConn(ctx, cn, err)
}()
done := ctx.Done() //nolint:ifshort
if done == nil {
err = fn(ctx, cn)
return err
}
errc := make(chan error, 1)
go func() { errc <- fn(ctx, cn) }()
select {
case <-done:
_ = cn.Close()
// Wait for the goroutine to finish and send something.
<-errc
err = ctx.Err()
return err
case err = <-errc:
return err
}
}
func (c *baseClient) process(ctx context.Context, cmd Cmder) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
attempt := attempt
retry, err := c._process(ctx, cmd, attempt)
if err == nil || !retry {
return err
}
lastErr = err
}
return lastErr
}
func (c *baseClient) _process(ctx context.Context, cmd Cmder, attempt int) (bool, error) {
if attempt > 0 {
if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
return false, err
}
}
retryTimeout := uint32(1)
err := c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmd(wr, cmd)
})
if err != nil {
return err
}
err = cn.WithReader(ctx, c.cmdTimeout(cmd), cmd.readReply)
if err != nil {
if cmd.readTimeout() == nil {
atomic.StoreUint32(&retryTimeout, 1)
}
return err
}
return nil
})
if err == nil {
return false, nil
}
retry := shouldRetry(err, atomic.LoadUint32(&retryTimeout) == 1)
return retry, err
}
func (c *baseClient) retryBackoff(attempt int) time.Duration {
return internal.RetryBackoff(attempt, c.opt.MinRetryBackoff, c.opt.MaxRetryBackoff)
}
func (c *baseClient) cmdTimeout(cmd Cmder) time.Duration {
if timeout := cmd.readTimeout(); timeout != nil {
t := *timeout
if t == 0 {
return 0
}
return t + 10*time.Second
}
return c.opt.ReadTimeout
}
// Close closes the client, releasing any open resources.
//
// It is rare to Close a Client, as the Client is meant to be
// long-lived and shared between many goroutines.
func (c *baseClient) Close() error {
var firstErr error
if c.onClose != nil {
if err := c.onClose(); err != nil {
firstErr = err
}
}
if err := c.connPool.Close(); err != nil && firstErr == nil {
firstErr = err
}
return firstErr
}
func (c *baseClient) getAddr() string {
return c.opt.Addr
}
func (c *baseClient) processPipeline(ctx context.Context, cmds []Cmder) error {
return c.generalProcessPipeline(ctx, cmds, c.pipelineProcessCmds)
}
func (c *baseClient) processTxPipeline(ctx context.Context, cmds []Cmder) error {
return c.generalProcessPipeline(ctx, cmds, c.txPipelineProcessCmds)
}
type pipelineProcessor func(context.Context, *pool.Conn, []Cmder) (bool, error)
func (c *baseClient) generalProcessPipeline(
ctx context.Context, cmds []Cmder, p pipelineProcessor,
) error {
err := c._generalProcessPipeline(ctx, cmds, p)
if err != nil {
setCmdsErr(cmds, err)
return err
}
return cmdsFirstErr(cmds)
}
func (c *baseClient) _generalProcessPipeline(
ctx context.Context, cmds []Cmder, p pipelineProcessor,
) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
if attempt > 0 {
if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
return err
}
}
var canRetry bool
lastErr = c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
var err error
canRetry, err = p(ctx, cn, cmds)
return err
})
if lastErr == nil || !canRetry || !shouldRetry(lastErr, true) {
return lastErr
}
}
return lastErr
}
func (c *baseClient) pipelineProcessCmds(
ctx context.Context, cn *pool.Conn, cmds []Cmder,
) (bool, error) {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
})
if err != nil {
return true, err
}
err = cn.WithReader(ctx, c.opt.ReadTimeout, func(rd *proto.Reader) error {
return pipelineReadCmds(rd, cmds)
})
return true, err
}
func pipelineReadCmds(rd *proto.Reader, cmds []Cmder) error {
for _, cmd := range cmds {
err := cmd.readReply(rd)
cmd.SetErr(err)
if err != nil && !isRedisError(err) {
return err
}
}
return nil
}
func (c *baseClient) txPipelineProcessCmds(
ctx context.Context, cn *pool.Conn, cmds []Cmder,
) (bool, error) {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
})
if err != nil {
return true, err
}
err = cn.WithReader(ctx, c.opt.ReadTimeout, func(rd *proto.Reader) error {
statusCmd := cmds[0].(*StatusCmd)
// Trim multi and exec.
cmds = cmds[1 : len(cmds)-1]
err := txPipelineReadQueued(rd, statusCmd, cmds)
if err != nil {
return err
}
return pipelineReadCmds(rd, cmds)
})
return false, err
}
func wrapMultiExec(ctx context.Context, cmds []Cmder) []Cmder {
if len(cmds) == 0 {
panic("not reached")
}
cmdCopy := make([]Cmder, len(cmds)+2)
cmdCopy[0] = NewStatusCmd(ctx, "multi")
copy(cmdCopy[1:], cmds)
cmdCopy[len(cmdCopy)-1] = NewSliceCmd(ctx, "exec")
return cmdCopy
}
func txPipelineReadQueued(rd *proto.Reader, statusCmd *StatusCmd, cmds []Cmder) error {
// Parse queued replies.
if err := statusCmd.readReply(rd); err != nil {
return err
}
for range cmds {
if err := statusCmd.readReply(rd); err != nil && !isRedisError(err) {
return err
}
}
// Parse number of replies.
line, err := rd.ReadLine()
if err != nil {
if err == Nil {
err = TxFailedErr
}
return err
}
switch line[0] {
case proto.ErrorReply:
return proto.ParseErrorReply(line)
case proto.ArrayReply:
// ok
default:
err := fmt.Errorf("redis: expected '*', but got line %q", line)
return err
}
return nil
}
//------------------------------------------------------------------------------
// Client is a Redis client representing a pool of zero or more
// underlying connections. It's safe for concurrent use by multiple
// goroutines.
type Client struct {
*baseClient
cmdable
hooks
ctx context.Context
}
// NewClient returns a client to the Redis Server specified by Options.
func NewClient(opt *Options) *Client {
opt.init()
c := Client{
baseClient: newBaseClient(opt, newConnPool(opt)),
ctx: context.Background(),
}
c.cmdable = c.Process
return &c
}
func (c *Client) clone() *Client {
clone := *c
clone.cmdable = clone.Process
clone.hooks.lock()
return &clone
}
func (c *Client) WithTimeout(timeout time.Duration) *Client {
clone := c.clone()
clone.baseClient = c.baseClient.withTimeout(timeout)
return clone
}
func (c *Client) Context() context.Context {
return c.ctx
}
func (c *Client) WithContext(ctx context.Context) *Client {
if ctx == nil {
panic("nil context")
}
clone := c.clone()
clone.ctx = ctx
return clone
}
func (c *Client) Conn(ctx context.Context) *Conn {
return newConn(ctx, c.opt, pool.NewStickyConnPool(c.connPool))
}
// Do creates a Cmd from the args and processes the cmd.
func (c *Client) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
func (c *Client) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
}
func (c *Client) processPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, c.baseClient.processPipeline)
}
func (c *Client) processTxPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processTxPipeline(ctx, cmds, c.baseClient.processTxPipeline)
}
// Options returns read-only Options that were used to create the client.
func (c *Client) Options() *Options {
return c.opt
}
type PoolStats pool.Stats
// PoolStats returns connection pool stats.
func (c *Client) PoolStats() *PoolStats {
stats := c.connPool.Stats()
return (*PoolStats)(stats)
}
func (c *Client) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Client) Pipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processPipeline,
}
pipe.init()
return &pipe
}
func (c *Client) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
func (c *Client) TxPipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processTxPipeline,
}
pipe.init()
return &pipe
}
func (c *Client) pubSub() *PubSub {
pubsub := &PubSub{
opt: c.opt,
newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
return c.newConn(ctx)
},
closeConn: c.connPool.CloseConn,
}
pubsub.init()
return pubsub
}
// Subscribe subscribes the client to the specified channels.
// Channels can be omitted to create empty subscription.
// Note that this method does not wait on a response from Redis, so the
// subscription may not be active immediately. To force the connection to wait,
// you may call the Receive() method on the returned *PubSub like so:
//
// sub := client.Subscribe(queryResp)
// iface, err := sub.Receive()
// if err != nil {
// // handle error
// }
//
// // Should be *Subscription, but others are possible if other actions have been
// // taken on sub since it was created.
// switch iface.(type) {
// case *Subscription:
// // subscribe succeeded
// case *Message:
// // received first message
// case *Pong:
// // pong received
// default:
// // handle error
// }
//
// ch := sub.Channel()
func (c *Client) Subscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.Subscribe(ctx, channels...)
}
return pubsub
}
// PSubscribe subscribes the client to the given patterns.
// Patterns can be omitted to create empty subscription.
func (c *Client) PSubscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.PSubscribe(ctx, channels...)
}
return pubsub
}
//------------------------------------------------------------------------------
type conn struct {
baseClient
cmdable
statefulCmdable
hooks // TODO: inherit hooks
}
// Conn represents a single Redis connection rather than a pool of connections.
// Prefer running commands from Client unless there is a specific need
// for a continuous single Redis connection.
type Conn struct {
*conn
ctx context.Context
}
func newConn(ctx context.Context, opt *Options, connPool pool.Pooler) *Conn {
c := Conn{
conn: &conn{
baseClient: baseClient{
opt: opt,
connPool: connPool,
},
},
ctx: ctx,
}
c.cmdable = c.Process
c.statefulCmdable = c.Process
return &c
}
func (c *Conn) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
}
func (c *Conn) processPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, c.baseClient.processPipeline)
}
func (c *Conn) processTxPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processTxPipeline(ctx, cmds, c.baseClient.processTxPipeline)
}
func (c *Conn) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Conn) Pipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processPipeline,
}
pipe.init()
return &pipe
}
func (c *Conn) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
func (c *Conn) TxPipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processTxPipeline,
}
pipe.init()
return &pipe
}

4
vendor/github.com/redis/go-redis/v9/.gitignore generated vendored Normal file
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@ -0,0 +1,4 @@
*.rdb
testdata/*
.idea/
.DS_Store

124
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## [9.0.5](https://github.com/redis/go-redis/compare/v9.0.4...v9.0.5) (2023-05-29)
### Features
* Add ACL LOG ([#2536](https://github.com/redis/go-redis/issues/2536)) ([31ba855](https://github.com/redis/go-redis/commit/31ba855ddebc38fbcc69a75d9d4fb769417cf602))
* add field protocol to setupClusterQueryParams ([#2600](https://github.com/redis/go-redis/issues/2600)) ([840c25c](https://github.com/redis/go-redis/commit/840c25cb6f320501886a82a5e75f47b491e46fbe))
* add protocol option ([#2598](https://github.com/redis/go-redis/issues/2598)) ([3917988](https://github.com/redis/go-redis/commit/391798880cfb915c4660f6c3ba63e0c1a459e2af))
## [9.0.4](https://github.com/redis/go-redis/compare/v9.0.3...v9.0.4) (2023-05-01)
### Bug Fixes
* reader float parser ([#2513](https://github.com/redis/go-redis/issues/2513)) ([46f2450](https://github.com/redis/go-redis/commit/46f245075e6e3a8bd8471f9ca67ea95fd675e241))
### Features
* add client info command ([#2483](https://github.com/redis/go-redis/issues/2483)) ([b8c7317](https://github.com/redis/go-redis/commit/b8c7317cc6af444603731f7017c602347c0ba61e))
* no longer verify HELLO error messages ([#2515](https://github.com/redis/go-redis/issues/2515)) ([7b4f217](https://github.com/redis/go-redis/commit/7b4f2179cb5dba3d3c6b0c6f10db52b837c912c8))
* read the structure to increase the judgment of the omitempty op… ([#2529](https://github.com/redis/go-redis/issues/2529)) ([37c057b](https://github.com/redis/go-redis/commit/37c057b8e597c5e8a0e372337f6a8ad27f6030af))
## [9.0.3](https://github.com/redis/go-redis/compare/v9.0.2...v9.0.3) (2023-04-02)
### New Features
- feat(scan): scan time.Time sets the default decoding (#2413)
- Add support for CLUSTER LINKS command (#2504)
- Add support for acl dryrun command (#2502)
- Add support for COMMAND GETKEYS & COMMAND GETKEYSANDFLAGS (#2500)
- Add support for LCS Command (#2480)
- Add support for BZMPOP (#2456)
- Adding support for ZMPOP command (#2408)
- Add support for LMPOP (#2440)
- feat: remove pool unused fields (#2438)
- Expiretime and PExpireTime (#2426)
- Implement `FUNCTION` group of commands (#2475)
- feat(zadd): add ZAddLT and ZAddGT (#2429)
- Add: Support for COMMAND LIST command (#2491)
- Add support for BLMPOP (#2442)
- feat: check pipeline.Do to prevent confusion with Exec (#2517)
- Function stats, function kill, fcall and fcall_ro (#2486)
- feat: Add support for CLUSTER SHARDS command (#2507)
- feat(cmd): support for adding byte,bit parameters to the bitpos command (#2498)
### Fixed
- fix: eval api cmd.SetFirstKeyPos (#2501)
- fix: limit the number of connections created (#2441)
- fixed #2462 v9 continue support dragonfly, it's Hello command return "NOAUTH Authentication required" error (#2479)
- Fix for internal/hscan/structmap.go:89:23: undefined: reflect.Pointer (#2458)
- fix: group lag can be null (#2448)
### Maintenance
- Updating to the latest version of redis (#2508)
- Allowing for running tests on a port other than the fixed 6380 (#2466)
- redis 7.0.8 in tests (#2450)
- docs: Update redisotel example for v9 (#2425)
- chore: update go mod, Upgrade golang.org/x/net version to 0.7.0 (#2476)
- chore: add Chinese translation (#2436)
- chore(deps): bump github.com/bsm/gomega from 1.20.0 to 1.26.0 (#2421)
- chore(deps): bump github.com/bsm/ginkgo/v2 from 2.5.0 to 2.7.0 (#2420)
- chore(deps): bump actions/setup-go from 3 to 4 (#2495)
- docs: add instructions for the HSet api (#2503)
- docs: add reading lag field comment (#2451)
- test: update go mod before testing(go mod tidy) (#2423)
- docs: fix comment typo (#2505)
- test: remove testify (#2463)
- refactor: change ListElementCmd to KeyValuesCmd. (#2443)
- fix(appendArg): appendArg case special type (#2489)
## [9.0.2](https://github.com/redis/go-redis/compare/v9.0.1...v9.0.2) (2023-02-01)
### Features
* upgrade OpenTelemetry, use the new metrics API. ([#2410](https://github.com/redis/go-redis/issues/2410)) ([e29e42c](https://github.com/redis/go-redis/commit/e29e42cde2755ab910d04185025dc43ce6f59c65))
## v9 2023-01-30
### Breaking
- Changed Pipelines to not be thread-safe any more.
### Added
- Added support for [RESP3](https://github.com/antirez/RESP3/blob/master/spec.md) protocol. It was
contributed by @monkey92t who has done the majority of work in this release.
- Added `ContextTimeoutEnabled` option that controls whether the client respects context timeouts
and deadlines. See
[Redis Timeouts](https://redis.uptrace.dev/guide/go-redis-debugging.html#timeouts) for details.
- Added `ParseClusterURL` to parse URLs into `ClusterOptions`, for example,
`redis://user:password@localhost:6789?dial_timeout=3&read_timeout=6s&addr=localhost:6790&addr=localhost:6791`.
- Added metrics instrumentation using `redisotel.IstrumentMetrics`. See
[documentation](https://redis.uptrace.dev/guide/go-redis-monitoring.html)
- Added `redis.HasErrorPrefix` to help working with errors.
### Changed
- Removed asynchronous cancellation based on the context timeout. It was racy in v8 and is
completely gone in v9.
- Reworked hook interface and added `DialHook`.
- Replaced `redisotel.NewTracingHook` with `redisotel.InstrumentTracing`. See
[example](example/otel) and
[documentation](https://redis.uptrace.dev/guide/go-redis-monitoring.html).
- Replaced `*redis.Z` with `redis.Z` since it is small enough to be passed as value without making
an allocation.
- Renamed the option `MaxConnAge` to `ConnMaxLifetime`.
- Renamed the option `IdleTimeout` to `ConnMaxIdleTime`.
- Removed connection reaper in favor of `MaxIdleConns`.
- Removed `WithContext` since `context.Context` can be passed directly as an arg.
- Removed `Pipeline.Close` since there is no real need to explicitly manage pipeline resources and
it can be safely reused via `sync.Pool` etc. `Pipeline.Discard` is still available if you want to
reset commands for some reason.
### Fixed
- Improved and fixed pipeline retries.
- As usually, added support for more commands and fixed some bugs.

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@ -1,4 +1,4 @@
Copyright (c) 2013 The github.com/go-redis/redis Authors.
Copyright (c) 2013 The github.com/redis/go-redis Authors.
All rights reserved.
Redistribution and use in source and binary forms, with or without

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GO_MOD_DIRS := $(shell find . -type f -name 'go.mod' -exec dirname {} \; | sort)
test: testdeps
set -e; for dir in $(GO_MOD_DIRS); do \
echo "go test in $${dir}"; \
(cd "$${dir}" && \
go mod tidy -compat=1.18 && \
go test && \
go test ./... -short -race && \
go test ./... -run=NONE -bench=. -benchmem && \
env GOOS=linux GOARCH=386 go test && \
go vet); \
done
cd internal/customvet && go build .
go vet -vettool ./internal/customvet/customvet
testdeps: testdata/redis/src/redis-server
bench: testdeps
go test ./... -test.run=NONE -test.bench=. -test.benchmem
.PHONY: all test testdeps bench
testdata/redis:
mkdir -p $@
wget -qO- https://download.redis.io/releases/redis-7.2-rc3.tar.gz | tar xvz --strip-components=1 -C $@
testdata/redis/src/redis-server: testdata/redis
cd $< && make all
fmt:
gofmt -w -s ./
goimports -w -local github.com/redis/go-redis ./
go_mod_tidy:
set -e; for dir in $(GO_MOD_DIRS); do \
echo "go mod tidy in $${dir}"; \
(cd "$${dir}" && \
go get -u ./... && \
go mod tidy -compat=1.18); \
done

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# Redis client for Go
[![build workflow](https://github.com/redis/go-redis/actions/workflows/build.yml/badge.svg)](https://github.com/redis/go-redis/actions)
[![PkgGoDev](https://pkg.go.dev/badge/github.com/redis/go-redis/v9)](https://pkg.go.dev/github.com/redis/go-redis/v9?tab=doc)
[![Documentation](https://img.shields.io/badge/redis-documentation-informational)](https://redis.uptrace.dev/)
[![Chat](https://discordapp.com/api/guilds/752070105847955518/widget.png)](https://discord.gg/rWtp5Aj)
> go-redis is brought to you by :star: [**uptrace/uptrace**](https://github.com/uptrace/uptrace).
> Uptrace is an open-source APM tool that supports distributed tracing, metrics, and logs. You can
> use it to monitor applications and set up automatic alerts to receive notifications via email,
> Slack, Telegram, and others.
>
> See [OpenTelemetry](example/otel) example which demonstrates how you can use Uptrace to monitor
> go-redis.
## Documentation
- [English](https://redis.uptrace.dev)
- [简体中文](https://redis.uptrace.dev/zh/)
## Resources
- [Discussions](https://github.com/redis/go-redis/discussions)
- [Chat](https://discord.gg/rWtp5Aj)
- [Reference](https://pkg.go.dev/github.com/redis/go-redis/v9)
- [Examples](https://pkg.go.dev/github.com/redis/go-redis/v9#pkg-examples)
## Ecosystem
- [Redis Mock](https://github.com/go-redis/redismock)
- [Distributed Locks](https://github.com/bsm/redislock)
- [Redis Cache](https://github.com/go-redis/cache)
- [Rate limiting](https://github.com/go-redis/redis_rate)
This client also works with [Kvrocks](https://github.com/apache/incubator-kvrocks), a distributed
key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.
## Features
- Redis 3 commands except QUIT, MONITOR, and SYNC.
- Automatic connection pooling with
- [Pub/Sub](https://redis.uptrace.dev/guide/go-redis-pubsub.html).
- [Pipelines and transactions](https://redis.uptrace.dev/guide/go-redis-pipelines.html).
- [Scripting](https://redis.uptrace.dev/guide/lua-scripting.html).
- [Redis Sentinel](https://redis.uptrace.dev/guide/go-redis-sentinel.html).
- [Redis Cluster](https://redis.uptrace.dev/guide/go-redis-cluster.html).
- [Redis Ring](https://redis.uptrace.dev/guide/ring.html).
- [Redis Performance Monitoring](https://redis.uptrace.dev/guide/redis-performance-monitoring.html).
- [Redis Probabilistic [RedisStack]](https://redis.io/docs/data-types/probabilistic/)
## Installation
go-redis supports 2 last Go versions and requires a Go version with
[modules](https://github.com/golang/go/wiki/Modules) support. So make sure to initialize a Go
module:
```shell
go mod init github.com/my/repo
```
Then install go-redis/**v9**:
```shell
go get github.com/redis/go-redis/v9
```
## Quickstart
```go
import (
"context"
"github.com/redis/go-redis/v9"
"fmt"
)
var ctx = context.Background()
func ExampleClient() {
rdb := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
})
err := rdb.Set(ctx, "key", "value", 0).Err()
if err != nil {
panic(err)
}
val, err := rdb.Get(ctx, "key").Result()
if err != nil {
panic(err)
}
fmt.Println("key", val)
val2, err := rdb.Get(ctx, "key2").Result()
if err == redis.Nil {
fmt.Println("key2 does not exist")
} else if err != nil {
panic(err)
} else {
fmt.Println("key2", val2)
}
// Output: key value
// key2 does not exist
}
```
The above can be modified to specify the version of the RESP protocol by adding the `protocol` option to the `Options` struct:
```go
rdb := redis.NewClient(&redis.Options{
Addr: "localhost:6379",
Password: "", // no password set
DB: 0, // use default DB
Protocol: 3, // specify 2 for RESP 2 or 3 for RESP 3
})
```
### Connecting via a redis url
go-redis also supports connecting via the [redis uri specification](https://github.com/redis/redis-specifications/tree/master/uri/redis.txt). The example below demonstrates how the connection can easily be configured using a string, adhering to this specification.
```go
import (
"context"
"github.com/redis/go-redis/v9"
"fmt"
)
var ctx = context.Background()
func ExampleClient() {
url := "redis://localhost:6379?password=hello&protocol=3"
opts, err := redis.ParseURL(url)
if err != nil {
panic(err)
}
rdb := redis.NewClient(opts)
```
## Look and feel
Some corner cases:
```go
// SET key value EX 10 NX
set, err := rdb.SetNX(ctx, "key", "value", 10*time.Second).Result()
// SET key value keepttl NX
set, err := rdb.SetNX(ctx, "key", "value", redis.KeepTTL).Result()
// SORT list LIMIT 0 2 ASC
vals, err := rdb.Sort(ctx, "list", &redis.Sort{Offset: 0, Count: 2, Order: "ASC"}).Result()
// ZRANGEBYSCORE zset -inf +inf WITHSCORES LIMIT 0 2
vals, err := rdb.ZRangeByScoreWithScores(ctx, "zset", &redis.ZRangeBy{
Min: "-inf",
Max: "+inf",
Offset: 0,
Count: 2,
}).Result()
// ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3 AGGREGATE SUM
vals, err := rdb.ZInterStore(ctx, "out", &redis.ZStore{
Keys: []string{"zset1", "zset2"},
Weights: []int64{2, 3}
}).Result()
// EVAL "return {KEYS[1],ARGV[1]}" 1 "key" "hello"
vals, err := rdb.Eval(ctx, "return {KEYS[1],ARGV[1]}", []string{"key"}, "hello").Result()
// custom command
res, err := rdb.Do(ctx, "set", "key", "value").Result()
```
## Run the test
go-redis will start a redis-server and run the test cases.
The paths of redis-server bin file and redis config file are defined in `main_test.go`:
```go
var (
redisServerBin, _ = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server"))
redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis", "redis.conf"))
)
```
For local testing, you can change the variables to refer to your local files, or create a soft link
to the corresponding folder for redis-server and copy the config file to `testdata/redis/`:
```shell
ln -s /usr/bin/redis-server ./go-redis/testdata/redis/src
cp ./go-redis/testdata/redis.conf ./go-redis/testdata/redis/
```
Lastly, run:
```shell
go test
```
Another option is to run your specific tests with an already running redis. The example below, tests against a redis running on port 9999.:
```shell
REDIS_PORT=9999 go test <your options>
```
## See also
- [Golang ORM](https://bun.uptrace.dev) for PostgreSQL, MySQL, MSSQL, and SQLite
- [Golang PostgreSQL](https://bun.uptrace.dev/postgres/)
- [Golang HTTP router](https://bunrouter.uptrace.dev/)
- [Golang ClickHouse ORM](https://github.com/uptrace/go-clickhouse)
## Contributors
Thanks to all the people who already contributed!
<a href="https://github.com/redis/go-redis/graphs/contributors">
<img src="https://contributors-img.web.app/image?repo=redis/go-redis" />
</a>

View File

@ -6,17 +6,19 @@ import (
"fmt"
"math"
"net"
"net/url"
"runtime"
"sort"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/hashtag"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
"github.com/go-redis/redis/v8/internal/rand"
"github.com/redis/go-redis/v9/internal"
"github.com/redis/go-redis/v9/internal/hashtag"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/proto"
"github.com/redis/go-redis/v9/internal/rand"
)
var errClusterNoNodes = fmt.Errorf("redis: cluster has no nodes")
@ -27,6 +29,9 @@ type ClusterOptions struct {
// A seed list of host:port addresses of cluster nodes.
Addrs []string
// ClientName will execute the `CLIENT SETNAME ClientName` command for each conn.
ClientName string
// NewClient creates a cluster node client with provided name and options.
NewClient func(opt *Options) *Client
@ -57,6 +62,7 @@ type ClusterOptions struct {
OnConnect func(ctx context.Context, cn *Conn) error
Protocol int
Username string
Password string
@ -67,17 +73,15 @@ type ClusterOptions struct {
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
ContextTimeoutEnabled bool
// PoolFIFO uses FIFO mode for each node connection pool GET/PUT (default LIFO).
PoolFIFO bool
// PoolSize applies per cluster node and not for the whole cluster.
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolSize int // applies per cluster node and not for the whole cluster
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
MinIdleConns int
MaxIdleConns int
ConnMaxIdleTime time.Duration
ConnMaxLifetime time.Duration
TLSConfig *tls.Config
}
@ -131,13 +135,137 @@ func (opt *ClusterOptions) init() {
}
}
func (opt *ClusterOptions) clientOptions() *Options {
const disableIdleCheck = -1
// ParseClusterURL parses a URL into ClusterOptions that can be used to connect to Redis.
// The URL must be in the form:
//
// redis://<user>:<password>@<host>:<port>
// or
// rediss://<user>:<password>@<host>:<port>
//
// To add additional addresses, specify the query parameter, "addr" one or more times. e.g:
//
// redis://<user>:<password>@<host>:<port>?addr=<host2>:<port2>&addr=<host3>:<port3>
// or
// rediss://<user>:<password>@<host>:<port>?addr=<host2>:<port2>&addr=<host3>:<port3>
//
// Most Option fields can be set using query parameters, with the following restrictions:
// - field names are mapped using snake-case conversion: to set MaxRetries, use max_retries
// - only scalar type fields are supported (bool, int, time.Duration)
// - for time.Duration fields, values must be a valid input for time.ParseDuration();
// additionally a plain integer as value (i.e. without unit) is intepreted as seconds
// - to disable a duration field, use value less than or equal to 0; to use the default
// value, leave the value blank or remove the parameter
// - only the last value is interpreted if a parameter is given multiple times
// - fields "network", "addr", "username" and "password" can only be set using other
// URL attributes (scheme, host, userinfo, resp.), query paremeters using these
// names will be treated as unknown parameters
// - unknown parameter names will result in an error
//
// Example:
//
// redis://user:password@localhost:6789?dial_timeout=3&read_timeout=6s&addr=localhost:6790&addr=localhost:6791
// is equivalent to:
// &ClusterOptions{
// Addr: ["localhost:6789", "localhost:6790", "localhost:6791"]
// DialTimeout: 3 * time.Second, // no time unit = seconds
// ReadTimeout: 6 * time.Second,
// }
func ParseClusterURL(redisURL string) (*ClusterOptions, error) {
o := &ClusterOptions{}
u, err := url.Parse(redisURL)
if err != nil {
return nil, err
}
// add base URL to the array of addresses
// more addresses may be added through the URL params
h, p := getHostPortWithDefaults(u)
o.Addrs = append(o.Addrs, net.JoinHostPort(h, p))
// setup username, password, and other configurations
o, err = setupClusterConn(u, h, o)
if err != nil {
return nil, err
}
return o, nil
}
// setupClusterConn gets the username and password from the URL and the query parameters.
func setupClusterConn(u *url.URL, host string, o *ClusterOptions) (*ClusterOptions, error) {
switch u.Scheme {
case "rediss":
o.TLSConfig = &tls.Config{ServerName: host}
fallthrough
case "redis":
o.Username, o.Password = getUserPassword(u)
default:
return nil, fmt.Errorf("redis: invalid URL scheme: %s", u.Scheme)
}
// retrieve the configuration from the query parameters
o, err := setupClusterQueryParams(u, o)
if err != nil {
return nil, err
}
return o, nil
}
// setupClusterQueryParams converts query parameters in u to option value in o.
func setupClusterQueryParams(u *url.URL, o *ClusterOptions) (*ClusterOptions, error) {
q := queryOptions{q: u.Query()}
o.Protocol = q.int("protocol")
o.ClientName = q.string("client_name")
o.MaxRedirects = q.int("max_redirects")
o.ReadOnly = q.bool("read_only")
o.RouteByLatency = q.bool("route_by_latency")
o.RouteRandomly = q.bool("route_randomly")
o.MaxRetries = q.int("max_retries")
o.MinRetryBackoff = q.duration("min_retry_backoff")
o.MaxRetryBackoff = q.duration("max_retry_backoff")
o.DialTimeout = q.duration("dial_timeout")
o.ReadTimeout = q.duration("read_timeout")
o.WriteTimeout = q.duration("write_timeout")
o.PoolFIFO = q.bool("pool_fifo")
o.PoolSize = q.int("pool_size")
o.MinIdleConns = q.int("min_idle_conns")
o.PoolTimeout = q.duration("pool_timeout")
o.ConnMaxLifetime = q.duration("conn_max_lifetime")
o.ConnMaxIdleTime = q.duration("conn_max_idle_time")
if q.err != nil {
return nil, q.err
}
// addr can be specified as many times as needed
addrs := q.strings("addr")
for _, addr := range addrs {
h, p, err := net.SplitHostPort(addr)
if err != nil || h == "" || p == "" {
return nil, fmt.Errorf("redis: unable to parse addr param: %s", addr)
}
o.Addrs = append(o.Addrs, net.JoinHostPort(h, p))
}
// any parameters left?
if r := q.remaining(); len(r) > 0 {
return nil, fmt.Errorf("redis: unexpected option: %s", strings.Join(r, ", "))
}
return o, nil
}
func (opt *ClusterOptions) clientOptions() *Options {
return &Options{
ClientName: opt.ClientName,
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
Protocol: opt.Protocol,
Username: opt.Username,
Password: opt.Password,
@ -151,11 +279,11 @@ func (opt *ClusterOptions) clientOptions() *Options {
PoolFIFO: opt.PoolFIFO,
PoolSize: opt.PoolSize,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: disableIdleCheck,
MinIdleConns: opt.MinIdleConns,
MaxIdleConns: opt.MaxIdleConns,
ConnMaxIdleTime: opt.ConnMaxIdleTime,
ConnMaxLifetime: opt.ConnMaxLifetime,
TLSConfig: opt.TLSConfig,
// If ClusterSlots is populated, then we probably have an artificial
@ -204,15 +332,26 @@ func (n *clusterNode) updateLatency() {
const numProbe = 10
var dur uint64
successes := 0
for i := 0; i < numProbe; i++ {
time.Sleep(time.Duration(10+rand.Intn(10)) * time.Millisecond)
start := time.Now()
n.Client.Ping(context.TODO())
err := n.Client.Ping(context.TODO()).Err()
if err == nil {
dur += uint64(time.Since(start) / time.Microsecond)
successes++
}
}
latency := float64(dur) / float64(numProbe)
var latency float64
if successes == 0 {
// If none of the pings worked, set latency to some arbitrarily high value so this node gets
// least priority.
latency = float64((1 * time.Minute) / time.Microsecond)
} else {
latency = float64(dur) / float64(successes)
}
atomic.StoreUint32(&n.latency, uint32(latency+0.5))
}
@ -262,6 +401,7 @@ type clusterNodes struct {
nodes map[string]*clusterNode
activeAddrs []string
closed bool
onNewNode []func(rdb *Client)
_generation uint32 // atomic
}
@ -297,6 +437,12 @@ func (c *clusterNodes) Close() error {
return firstErr
}
func (c *clusterNodes) OnNewNode(fn func(rdb *Client)) {
c.mu.Lock()
c.onNewNode = append(c.onNewNode, fn)
c.mu.Unlock()
}
func (c *clusterNodes) Addrs() ([]string, error) {
var addrs []string
@ -374,6 +520,9 @@ func (c *clusterNodes) GetOrCreate(addr string) (*clusterNode, error) {
}
node = newClusterNode(c.opt, addr)
for _, fn := range c.onNewNode {
fn(node.Client)
}
c.addrs = appendIfNotExists(c.addrs, addr)
c.nodes[addr] = node
@ -683,21 +832,16 @@ func (c *clusterStateHolder) ReloadOrGet(ctx context.Context) (*clusterState, er
//------------------------------------------------------------------------------
type clusterClient struct {
opt *ClusterOptions
nodes *clusterNodes
state *clusterStateHolder //nolint:structcheck
cmdsInfoCache *cmdsInfoCache //nolint:structcheck
}
// ClusterClient is a Redis Cluster client representing a pool of zero
// or more underlying connections. It's safe for concurrent use by
// multiple goroutines.
type ClusterClient struct {
*clusterClient
opt *ClusterOptions
nodes *clusterNodes
state *clusterStateHolder
cmdsInfoCache *cmdsInfoCache
cmdable
hooks
ctx context.Context
hooksMixin
}
// NewClusterClient returns a Redis Cluster client as described in
@ -706,38 +850,24 @@ func NewClusterClient(opt *ClusterOptions) *ClusterClient {
opt.init()
c := &ClusterClient{
clusterClient: &clusterClient{
opt: opt,
nodes: newClusterNodes(opt),
},
ctx: context.Background(),
}
c.state = newClusterStateHolder(c.loadState)
c.cmdsInfoCache = newCmdsInfoCache(c.cmdsInfo)
c.cmdable = c.Process
if opt.IdleCheckFrequency > 0 {
go c.reaper(opt.IdleCheckFrequency)
}
c.initHooks(hooks{
dial: nil,
process: c.process,
pipeline: c.processPipeline,
txPipeline: c.processTxPipeline,
})
return c
}
func (c *ClusterClient) Context() context.Context {
return c.ctx
}
func (c *ClusterClient) WithContext(ctx context.Context) *ClusterClient {
if ctx == nil {
panic("nil context")
}
clone := *c
clone.cmdable = clone.Process
clone.hooks.lock()
clone.ctx = ctx
return &clone
}
// Options returns read-only Options that were used to create the client.
func (c *ClusterClient) Options() *ClusterOptions {
return c.opt
@ -757,7 +887,7 @@ func (c *ClusterClient) Close() error {
return c.nodes.Close()
}
// Do creates a Cmd from the args and processes the cmd.
// Do create a Cmd from the args and processes the cmd.
func (c *ClusterClient) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
@ -765,13 +895,14 @@ func (c *ClusterClient) Do(ctx context.Context, args ...interface{}) *Cmd {
}
func (c *ClusterClient) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.process)
err := c.processHook(ctx, cmd)
cmd.SetErr(err)
return err
}
func (c *ClusterClient) process(ctx context.Context, cmd Cmder) error {
cmdInfo := c.cmdInfo(cmd.Name())
slot := c.cmdSlot(cmd)
cmdInfo := c.cmdInfo(ctx, cmd.Name())
slot := c.cmdSlot(ctx, cmd)
var node *clusterNode
var ask bool
var lastErr error
@ -791,12 +922,12 @@ func (c *ClusterClient) process(ctx context.Context, cmd Cmder) error {
}
if ask {
ask = false
pipe := node.Client.Pipeline()
_ = pipe.Process(ctx, NewCmd(ctx, "asking"))
_ = pipe.Process(ctx, cmd)
_, lastErr = pipe.Exec(ctx)
_ = pipe.Close()
ask = false
} else {
lastErr = node.Client.Process(ctx, cmd)
}
@ -851,6 +982,10 @@ func (c *ClusterClient) process(ctx context.Context, cmd Cmder) error {
return lastErr
}
func (c *ClusterClient) OnNewNode(fn func(rdb *Client)) {
c.nodes.OnNewNode(fn)
}
// ForEachMaster concurrently calls the fn on each master node in the cluster.
// It returns the first error if any.
func (c *ClusterClient) ForEachMaster(
@ -1056,30 +1191,9 @@ func (c *ClusterClient) loadState(ctx context.Context) (*clusterState, error) {
return nil, firstErr
}
// reaper closes idle connections to the cluster.
func (c *ClusterClient) reaper(idleCheckFrequency time.Duration) {
ticker := time.NewTicker(idleCheckFrequency)
defer ticker.Stop()
for range ticker.C {
nodes, err := c.nodes.All()
if err != nil {
break
}
for _, node := range nodes {
_, err := node.Client.connPool.(*pool.ConnPool).ReapStaleConns()
if err != nil {
internal.Logger.Printf(c.Context(), "ReapStaleConns failed: %s", err)
}
}
}
}
func (c *ClusterClient) Pipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processPipeline,
exec: pipelineExecer(c.processPipelineHook),
}
pipe.init()
return &pipe
@ -1090,13 +1204,9 @@ func (c *ClusterClient) Pipelined(ctx context.Context, fn func(Pipeliner) error)
}
func (c *ClusterClient) processPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, c._processPipeline)
}
func (c *ClusterClient) _processPipeline(ctx context.Context, cmds []Cmder) error {
cmdsMap := newCmdsMap()
err := c.mapCmdsByNode(ctx, cmdsMap, cmds)
if err != nil {
if err := c.mapCmdsByNode(ctx, cmdsMap, cmds); err != nil {
setCmdsErr(cmds, err)
return err
}
@ -1116,18 +1226,7 @@ func (c *ClusterClient) _processPipeline(ctx context.Context, cmds []Cmder) erro
wg.Add(1)
go func(node *clusterNode, cmds []Cmder) {
defer wg.Done()
err := c._processPipelineNode(ctx, node, cmds, failedCmds)
if err == nil {
return
}
if attempt < c.opt.MaxRedirects {
if err := c.mapCmdsByNode(ctx, failedCmds, cmds); err != nil {
setCmdsErr(cmds, err)
}
} else {
setCmdsErr(cmds, err)
}
c.processPipelineNode(ctx, node, cmds, failedCmds)
}(node, cmds)
}
@ -1147,9 +1246,9 @@ func (c *ClusterClient) mapCmdsByNode(ctx context.Context, cmdsMap *cmdsMap, cmd
return err
}
if c.opt.ReadOnly && c.cmdsAreReadOnly(cmds) {
if c.opt.ReadOnly && c.cmdsAreReadOnly(ctx, cmds) {
for _, cmd := range cmds {
slot := c.cmdSlot(cmd)
slot := c.cmdSlot(ctx, cmd)
node, err := c.slotReadOnlyNode(state, slot)
if err != nil {
return err
@ -1160,7 +1259,7 @@ func (c *ClusterClient) mapCmdsByNode(ctx context.Context, cmdsMap *cmdsMap, cmd
}
for _, cmd := range cmds {
slot := c.cmdSlot(cmd)
slot := c.cmdSlot(ctx, cmd)
node, err := state.slotMasterNode(slot)
if err != nil {
return err
@ -1170,9 +1269,9 @@ func (c *ClusterClient) mapCmdsByNode(ctx context.Context, cmdsMap *cmdsMap, cmd
return nil
}
func (c *ClusterClient) cmdsAreReadOnly(cmds []Cmder) bool {
func (c *ClusterClient) cmdsAreReadOnly(ctx context.Context, cmds []Cmder) bool {
for _, cmd := range cmds {
cmdInfo := c.cmdInfo(cmd.Name())
cmdInfo := c.cmdInfo(ctx, cmd.Name())
if cmdInfo == nil || !cmdInfo.ReadOnly {
return false
}
@ -1180,23 +1279,43 @@ func (c *ClusterClient) cmdsAreReadOnly(cmds []Cmder) bool {
return true
}
func (c *ClusterClient) _processPipelineNode(
func (c *ClusterClient) processPipelineNode(
ctx context.Context, node *clusterNode, cmds []Cmder, failedCmds *cmdsMap,
) error {
return node.Client.hooks.processPipeline(ctx, cmds, func(ctx context.Context, cmds []Cmder) error {
return node.Client.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
})
) {
_ = node.Client.withProcessPipelineHook(ctx, cmds, func(ctx context.Context, cmds []Cmder) error {
cn, err := node.Client.getConn(ctx)
if err != nil {
_ = c.mapCmdsByNode(ctx, failedCmds, cmds)
setCmdsErr(cmds, err)
return err
}
return cn.WithReader(ctx, c.opt.ReadTimeout, func(rd *proto.Reader) error {
var processErr error
defer func() {
node.Client.releaseConn(ctx, cn, processErr)
}()
processErr = c.processPipelineNodeConn(ctx, node, cn, cmds, failedCmds)
return processErr
})
}
func (c *ClusterClient) processPipelineNodeConn(
ctx context.Context, node *clusterNode, cn *pool.Conn, cmds []Cmder, failedCmds *cmdsMap,
) error {
if err := cn.WithWriter(c.context(ctx), c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
}); err != nil {
if shouldRetry(err, true) {
_ = c.mapCmdsByNode(ctx, failedCmds, cmds)
}
setCmdsErr(cmds, err)
return err
}
return cn.WithReader(c.context(ctx), c.opt.ReadTimeout, func(rd *proto.Reader) error {
return c.pipelineReadCmds(ctx, node, rd, cmds, failedCmds)
})
})
})
}
func (c *ClusterClient) pipelineReadCmds(
@ -1206,7 +1325,7 @@ func (c *ClusterClient) pipelineReadCmds(
cmds []Cmder,
failedCmds *cmdsMap,
) error {
for _, cmd := range cmds {
for i, cmd := range cmds {
err := cmd.readReply(rd)
cmd.SetErr(err)
@ -1218,15 +1337,24 @@ func (c *ClusterClient) pipelineReadCmds(
continue
}
if c.opt.ReadOnly && isLoadingError(err) {
if c.opt.ReadOnly {
node.MarkAsFailing()
}
if !isRedisError(err) {
if shouldRetry(err, true) {
_ = c.mapCmdsByNode(ctx, failedCmds, cmds)
}
setCmdsErr(cmds[i+1:], err)
return err
}
if isRedisError(err) {
continue
}
if err := cmds[0].Err(); err != nil && shouldRetry(err, true) {
_ = c.mapCmdsByNode(ctx, failedCmds, cmds)
return err
}
return nil
}
@ -1260,8 +1388,10 @@ func (c *ClusterClient) checkMovedErr(
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
func (c *ClusterClient) TxPipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processTxPipeline,
exec: func(ctx context.Context, cmds []Cmder) error {
cmds = wrapMultiExec(ctx, cmds)
return c.processTxPipelineHook(ctx, cmds)
},
}
pipe.init()
return &pipe
@ -1272,10 +1402,6 @@ func (c *ClusterClient) TxPipelined(ctx context.Context, fn func(Pipeliner) erro
}
func (c *ClusterClient) processTxPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processTxPipeline(ctx, cmds, c._processTxPipeline)
}
func (c *ClusterClient) _processTxPipeline(ctx context.Context, cmds []Cmder) error {
// Trim multi .. exec.
cmds = cmds[1 : len(cmds)-1]
@ -1285,7 +1411,7 @@ func (c *ClusterClient) _processTxPipeline(ctx context.Context, cmds []Cmder) er
return err
}
cmdsMap := c.mapCmdsBySlot(cmds)
cmdsMap := c.mapCmdsBySlot(ctx, cmds)
for slot, cmds := range cmdsMap {
node, err := state.slotMasterNode(slot)
if err != nil {
@ -1309,19 +1435,7 @@ func (c *ClusterClient) _processTxPipeline(ctx context.Context, cmds []Cmder) er
wg.Add(1)
go func(node *clusterNode, cmds []Cmder) {
defer wg.Done()
err := c._processTxPipelineNode(ctx, node, cmds, failedCmds)
if err == nil {
return
}
if attempt < c.opt.MaxRedirects {
if err := c.mapCmdsByNode(ctx, failedCmds, cmds); err != nil {
setCmdsErr(cmds, err)
}
} else {
setCmdsErr(cmds, err)
}
c.processTxPipelineNode(ctx, node, cmds, failedCmds)
}(node, cmds)
}
@ -1336,44 +1450,69 @@ func (c *ClusterClient) _processTxPipeline(ctx context.Context, cmds []Cmder) er
return cmdsFirstErr(cmds)
}
func (c *ClusterClient) mapCmdsBySlot(cmds []Cmder) map[int][]Cmder {
func (c *ClusterClient) mapCmdsBySlot(ctx context.Context, cmds []Cmder) map[int][]Cmder {
cmdsMap := make(map[int][]Cmder)
for _, cmd := range cmds {
slot := c.cmdSlot(cmd)
slot := c.cmdSlot(ctx, cmd)
cmdsMap[slot] = append(cmdsMap[slot], cmd)
}
return cmdsMap
}
func (c *ClusterClient) _processTxPipelineNode(
func (c *ClusterClient) processTxPipelineNode(
ctx context.Context, node *clusterNode, cmds []Cmder, failedCmds *cmdsMap,
) error {
return node.Client.hooks.processTxPipeline(ctx, cmds, func(ctx context.Context, cmds []Cmder) error {
return node.Client.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
err := cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
})
) {
cmds = wrapMultiExec(ctx, cmds)
_ = node.Client.withProcessPipelineHook(ctx, cmds, func(ctx context.Context, cmds []Cmder) error {
cn, err := node.Client.getConn(ctx)
if err != nil {
_ = c.mapCmdsByNode(ctx, failedCmds, cmds)
setCmdsErr(cmds, err)
return err
}
return cn.WithReader(ctx, c.opt.ReadTimeout, func(rd *proto.Reader) error {
var processErr error
defer func() {
node.Client.releaseConn(ctx, cn, processErr)
}()
processErr = c.processTxPipelineNodeConn(ctx, node, cn, cmds, failedCmds)
return processErr
})
}
func (c *ClusterClient) processTxPipelineNodeConn(
ctx context.Context, node *clusterNode, cn *pool.Conn, cmds []Cmder, failedCmds *cmdsMap,
) error {
if err := cn.WithWriter(c.context(ctx), c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
}); err != nil {
if shouldRetry(err, true) {
_ = c.mapCmdsByNode(ctx, failedCmds, cmds)
}
setCmdsErr(cmds, err)
return err
}
return cn.WithReader(c.context(ctx), c.opt.ReadTimeout, func(rd *proto.Reader) error {
statusCmd := cmds[0].(*StatusCmd)
// Trim multi and exec.
cmds = cmds[1 : len(cmds)-1]
trimmedCmds := cmds[1 : len(cmds)-1]
if err := c.txPipelineReadQueued(
ctx, rd, statusCmd, trimmedCmds, failedCmds,
); err != nil {
setCmdsErr(cmds, err)
err := c.txPipelineReadQueued(ctx, rd, statusCmd, cmds, failedCmds)
if err != nil {
moved, ask, addr := isMovedError(err)
if moved || ask {
return c.cmdsMoved(ctx, cmds, moved, ask, addr, failedCmds)
return c.cmdsMoved(ctx, trimmedCmds, moved, ask, addr, failedCmds)
}
return err
}
return pipelineReadCmds(rd, cmds)
})
})
return pipelineReadCmds(rd, trimmedCmds)
})
}
@ -1406,12 +1545,7 @@ func (c *ClusterClient) txPipelineReadQueued(
return err
}
switch line[0] {
case proto.ErrorReply:
return proto.ParseErrorReply(line)
case proto.ArrayReply:
// ok
default:
if line[0] != proto.RespArray {
return fmt.Errorf("redis: expected '*', but got line %q", line)
}
@ -1568,6 +1702,15 @@ func (c *ClusterClient) PSubscribe(ctx context.Context, channels ...string) *Pub
return pubsub
}
// SSubscribe Subscribes the client to the specified shard channels.
func (c *ClusterClient) SSubscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.SSubscribe(ctx, channels...)
}
return pubsub
}
func (c *ClusterClient) retryBackoff(attempt int) time.Duration {
return internal.RetryBackoff(attempt, c.opt.MinRetryBackoff, c.opt.MaxRetryBackoff)
}
@ -1614,26 +1757,27 @@ func (c *ClusterClient) cmdsInfo(ctx context.Context) (map[string]*CommandInfo,
return nil, firstErr
}
func (c *ClusterClient) cmdInfo(name string) *CommandInfo {
cmdsInfo, err := c.cmdsInfoCache.Get(c.ctx)
func (c *ClusterClient) cmdInfo(ctx context.Context, name string) *CommandInfo {
cmdsInfo, err := c.cmdsInfoCache.Get(ctx)
if err != nil {
internal.Logger.Printf(context.TODO(), "getting command info: %s", err)
return nil
}
info := cmdsInfo[name]
if info == nil {
internal.Logger.Printf(c.Context(), "info for cmd=%s not found", name)
internal.Logger.Printf(context.TODO(), "info for cmd=%s not found", name)
}
return info
}
func (c *ClusterClient) cmdSlot(cmd Cmder) int {
func (c *ClusterClient) cmdSlot(ctx context.Context, cmd Cmder) int {
args := cmd.Args()
if args[0] == "cluster" && args[1] == "getkeysinslot" {
return args[2].(int)
}
cmdInfo := c.cmdInfo(cmd.Name())
cmdInfo := c.cmdInfo(ctx, cmd.Name())
return cmdSlot(cmd, cmdFirstKeyPos(cmd, cmdInfo))
}
@ -1661,7 +1805,7 @@ func (c *ClusterClient) cmdNode(
return state.slotMasterNode(slot)
}
func (c *clusterClient) slotReadOnlyNode(state *clusterState, slot int) (*clusterNode, error) {
func (c *ClusterClient) slotReadOnlyNode(state *clusterState, slot int) (*clusterNode, error) {
if c.opt.RouteByLatency {
return state.slotClosestNode(slot)
}
@ -1708,6 +1852,13 @@ func (c *ClusterClient) MasterForKey(ctx context.Context, key string) (*Client,
return node.Client, err
}
func (c *ClusterClient) context(ctx context.Context) context.Context {
if c.opt.ContextTimeoutEnabled {
return ctx
}
return context.Background()
}
func appendUniqueNode(nodes []*clusterNode, node *clusterNode) []*clusterNode {
for _, n := range nodes {
if n == node {

View File

@ -8,7 +8,7 @@ import (
func (c *ClusterClient) DBSize(ctx context.Context) *IntCmd {
cmd := NewIntCmd(ctx, "dbsize")
_ = c.hooks.process(ctx, cmd, func(ctx context.Context, _ Cmder) error {
_ = c.withProcessHook(ctx, cmd, func(ctx context.Context, _ Cmder) error {
var size int64
err := c.ForEachMaster(ctx, func(ctx context.Context, master *Client) error {
n, err := master.DBSize(ctx).Result()
@ -30,8 +30,8 @@ func (c *ClusterClient) DBSize(ctx context.Context) *IntCmd {
func (c *ClusterClient) ScriptLoad(ctx context.Context, script string) *StringCmd {
cmd := NewStringCmd(ctx, "script", "load", script)
_ = c.hooks.process(ctx, cmd, func(ctx context.Context, _ Cmder) error {
mu := &sync.Mutex{}
_ = c.withProcessHook(ctx, cmd, func(ctx context.Context, _ Cmder) error {
var mu sync.Mutex
err := c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
val, err := shard.ScriptLoad(ctx, script).Result()
if err != nil {
@ -56,7 +56,7 @@ func (c *ClusterClient) ScriptLoad(ctx context.Context, script string) *StringCm
func (c *ClusterClient) ScriptFlush(ctx context.Context) *StatusCmd {
cmd := NewStatusCmd(ctx, "script", "flush")
_ = c.hooks.process(ctx, cmd, func(ctx context.Context, _ Cmder) error {
_ = c.withProcessHook(ctx, cmd, func(ctx context.Context, _ Cmder) error {
err := c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
return shard.ScriptFlush(ctx).Err()
})
@ -82,8 +82,8 @@ func (c *ClusterClient) ScriptExists(ctx context.Context, hashes ...string) *Boo
result[i] = true
}
_ = c.hooks.process(ctx, cmd, func(ctx context.Context, _ Cmder) error {
mu := &sync.Mutex{}
_ = c.withProcessHook(ctx, cmd, func(ctx context.Context, _ Cmder) error {
var mu sync.Mutex
err := c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
val, err := shard.ScriptExists(ctx, hashes...).Result()
if err != nil {

5235
vendor/github.com/redis/go-redis/v9/command.go generated vendored Normal file

File diff suppressed because it is too large Load Diff

View File

@ -6,13 +6,24 @@ import (
"net"
"strings"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/proto"
)
// ErrClosed performs any operation on the closed client will return this error.
var ErrClosed = pool.ErrClosed
// HasErrorPrefix checks if the err is a Redis error and the message contains a prefix.
func HasErrorPrefix(err error, prefix string) bool {
err, ok := err.(Error)
if !ok {
return false
}
msg := err.Error()
msg = strings.TrimPrefix(msg, "ERR ") // KVRocks adds such prefix
return strings.HasPrefix(msg, prefix)
}
type Error interface {
error
@ -91,7 +102,7 @@ func isBadConn(err error, allowTimeout bool, addr string) bool {
if allowTimeout {
if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
return !netErr.Temporary()
return false
}
}

View File

@ -4,6 +4,8 @@ import (
"fmt"
"strconv"
"time"
"github.com/redis/go-redis/v9/internal/util"
)
func AppendArg(b []byte, v interface{}) []byte {
@ -11,7 +13,7 @@ func AppendArg(b []byte, v interface{}) []byte {
case nil:
return append(b, "<nil>"...)
case string:
return appendUTF8String(b, Bytes(v))
return appendUTF8String(b, util.StringToBytes(v))
case []byte:
return appendUTF8String(b, v)
case int:

View File

@ -3,7 +3,7 @@ package hashtag
import (
"strings"
"github.com/go-redis/redis/v8/internal/rand"
"github.com/redis/go-redis/v9/internal/rand"
)
const slotNumber = 16384

View File

@ -10,6 +10,12 @@ import (
// decoderFunc represents decoding functions for default built-in types.
type decoderFunc func(reflect.Value, string) error
// Scanner is the interface implemented by themselves,
// which will override the decoding behavior of decoderFunc.
type Scanner interface {
ScanRedis(s string) error
}
var (
// List of built-in decoders indexed by their numeric constant values (eg: reflect.Bool = 1).
decoders = []decoderFunc{

View File

@ -1,10 +1,13 @@
package hscan
import (
"encoding"
"fmt"
"reflect"
"strings"
"sync"
"github.com/redis/go-redis/v9/internal/util"
)
// structMap contains the map of struct fields for target structs
@ -84,7 +87,32 @@ func (s StructValue) Scan(key string, value string) error {
if !ok {
return nil
}
if err := field.fn(s.value.Field(field.index), value); err != nil {
v := s.value.Field(field.index)
isPtr := v.Kind() == reflect.Ptr
if isPtr && v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
if !isPtr && v.Type().Name() != "" && v.CanAddr() {
v = v.Addr()
isPtr = true
}
if isPtr && v.Type().NumMethod() > 0 && v.CanInterface() {
switch scan := v.Interface().(type) {
case Scanner:
return scan.ScanRedis(value)
case encoding.TextUnmarshaler:
return scan.UnmarshalText(util.StringToBytes(value))
}
}
if isPtr {
v = v.Elem()
}
if err := field.fn(v, value); err != nil {
t := s.value.Type()
return fmt.Errorf("cannot scan redis.result %s into struct field %s.%s of type %s, error-%s",
value, t.Name(), t.Field(field.index).Name, t.Field(field.index).Type, err.Error())

View File

@ -3,7 +3,7 @@ package internal
import (
"time"
"github.com/go-redis/redis/v8/internal/rand"
"github.com/redis/go-redis/v9/internal/rand"
)
func RetryBackoff(retry int, minBackoff, maxBackoff time.Duration) time.Duration {

View File

@ -32,7 +32,9 @@ type Once struct {
// Do calls the function f if and only if Do has not been invoked
// without error for this instance of Once. In other words, given
//
// var once Once
//
// if once.Do(f) is called multiple times, only the first call will
// invoke f, even if f has a different value in each invocation unless
// f returns an error. A new instance of Once is required for each
@ -41,6 +43,7 @@ type Once struct {
// Do is intended for initialization that must be run exactly once. Since f
// is niladic, it may be necessary to use a function literal to capture the
// arguments to a function to be invoked by Do:
//
// err := config.once.Do(func() error { return config.init(filename) })
func (o *Once) Do(f func() error) error {
if atomic.LoadUint32(&o.done) == 1 {

View File

@ -7,7 +7,7 @@ import (
"sync/atomic"
"time"
"github.com/go-redis/redis/v8/internal/proto"
"github.com/redis/go-redis/v9/internal/proto"
)
var noDeadline = time.Time{}
@ -63,19 +63,25 @@ func (cn *Conn) RemoteAddr() net.Addr {
return nil
}
func (cn *Conn) WithReader(ctx context.Context, timeout time.Duration, fn func(rd *proto.Reader) error) error {
func (cn *Conn) WithReader(
ctx context.Context, timeout time.Duration, fn func(rd *proto.Reader) error,
) error {
if timeout >= 0 {
if err := cn.netConn.SetReadDeadline(cn.deadline(ctx, timeout)); err != nil {
return err
}
}
return fn(cn.rd)
}
func (cn *Conn) WithWriter(
ctx context.Context, timeout time.Duration, fn func(wr *proto.Writer) error,
) error {
if timeout >= 0 {
if err := cn.netConn.SetWriteDeadline(cn.deadline(ctx, timeout)); err != nil {
return err
}
}
if cn.bw.Buffered() > 0 {
cn.bw.Reset(cn.netConn)

View File

@ -0,0 +1,50 @@
//go:build linux || darwin || dragonfly || freebsd || netbsd || openbsd || solaris || illumos
// +build linux darwin dragonfly freebsd netbsd openbsd solaris illumos
package pool
import (
"errors"
"io"
"net"
"syscall"
"time"
)
var errUnexpectedRead = errors.New("unexpected read from socket")
func connCheck(conn net.Conn) error {
// Reset previous timeout.
_ = conn.SetDeadline(time.Time{})
sysConn, ok := conn.(syscall.Conn)
if !ok {
return nil
}
rawConn, err := sysConn.SyscallConn()
if err != nil {
return err
}
var sysErr error
if err := rawConn.Read(func(fd uintptr) bool {
var buf [1]byte
n, err := syscall.Read(int(fd), buf[:])
switch {
case n == 0 && err == nil:
sysErr = io.EOF
case n > 0:
sysErr = errUnexpectedRead
case err == syscall.EAGAIN || err == syscall.EWOULDBLOCK:
sysErr = nil
default:
sysErr = err
}
return true
}); err != nil {
return err
}
return sysErr
}

View File

@ -0,0 +1,10 @@
//go:build !linux && !darwin && !dragonfly && !freebsd && !netbsd && !openbsd && !solaris && !illumos
// +build !linux,!darwin,!dragonfly,!freebsd,!netbsd,!openbsd,!solaris,!illumos
package pool
import "net"
func connCheck(conn net.Conn) error {
return nil
}

View File

@ -8,7 +8,7 @@ import (
"sync/atomic"
"time"
"github.com/go-redis/redis/v8/internal"
"github.com/redis/go-redis/v9/internal"
)
var (
@ -55,15 +55,14 @@ type Pooler interface {
type Options struct {
Dialer func(context.Context) (net.Conn, error)
OnClose func(*Conn) error
PoolFIFO bool
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
MinIdleConns int
MaxIdleConns int
ConnMaxIdleTime time.Duration
ConnMaxLifetime time.Duration
}
type lastDialErrorWrap struct {
@ -71,10 +70,9 @@ type lastDialErrorWrap struct {
}
type ConnPool struct {
opt *Options
cfg *Options
dialErrorsNum uint32 // atomic
lastDialError atomic.Value
queue chan struct{}
@ -82,43 +80,40 @@ type ConnPool struct {
connsMu sync.Mutex
conns []*Conn
idleConns []*Conn
poolSize int
idleConnsLen int
stats Stats
_closed uint32 // atomic
closedCh chan struct{}
}
var _ Pooler = (*ConnPool)(nil)
func NewConnPool(opt *Options) *ConnPool {
p := &ConnPool{
opt: opt,
cfg: opt,
queue: make(chan struct{}, opt.PoolSize),
conns: make([]*Conn, 0, opt.PoolSize),
idleConns: make([]*Conn, 0, opt.PoolSize),
closedCh: make(chan struct{}),
}
p.connsMu.Lock()
p.checkMinIdleConns()
p.connsMu.Unlock()
if opt.IdleTimeout > 0 && opt.IdleCheckFrequency > 0 {
go p.reaper(opt.IdleCheckFrequency)
}
return p
}
func (p *ConnPool) checkMinIdleConns() {
if p.opt.MinIdleConns == 0 {
if p.cfg.MinIdleConns == 0 {
return
}
for p.poolSize < p.opt.PoolSize && p.idleConnsLen < p.opt.MinIdleConns {
for p.poolSize < p.cfg.PoolSize && p.idleConnsLen < p.cfg.MinIdleConns {
select {
case p.queue <- struct{}{}:
p.poolSize++
p.idleConnsLen++
@ -130,7 +125,12 @@ func (p *ConnPool) checkMinIdleConns() {
p.idleConnsLen--
p.connsMu.Unlock()
}
p.freeTurn()
}()
default:
return
}
}
}
@ -176,7 +176,7 @@ func (p *ConnPool) newConn(ctx context.Context, pooled bool) (*Conn, error) {
p.conns = append(p.conns, cn)
if pooled {
// If pool is full remove the cn on next Put.
if p.poolSize >= p.opt.PoolSize {
if p.poolSize >= p.cfg.PoolSize {
cn.pooled = false
} else {
p.poolSize++
@ -191,14 +191,14 @@ func (p *ConnPool) dialConn(ctx context.Context, pooled bool) (*Conn, error) {
return nil, ErrClosed
}
if atomic.LoadUint32(&p.dialErrorsNum) >= uint32(p.opt.PoolSize) {
if atomic.LoadUint32(&p.dialErrorsNum) >= uint32(p.cfg.PoolSize) {
return nil, p.getLastDialError()
}
netConn, err := p.opt.Dialer(ctx)
netConn, err := p.cfg.Dialer(ctx)
if err != nil {
p.setLastDialError(err)
if atomic.AddUint32(&p.dialErrorsNum, 1) == uint32(p.opt.PoolSize) {
if atomic.AddUint32(&p.dialErrorsNum, 1) == uint32(p.cfg.PoolSize) {
go p.tryDial()
}
return nil, err
@ -215,7 +215,7 @@ func (p *ConnPool) tryDial() {
return
}
conn, err := p.opt.Dialer(context.Background())
conn, err := p.cfg.Dialer(context.Background())
if err != nil {
p.setLastDialError(err)
time.Sleep(time.Second)
@ -263,7 +263,7 @@ func (p *ConnPool) Get(ctx context.Context) (*Conn, error) {
break
}
if p.isStaleConn(cn) {
if !p.isHealthyConn(cn) {
_ = p.CloseConn(cn)
continue
}
@ -283,10 +283,6 @@ func (p *ConnPool) Get(ctx context.Context) (*Conn, error) {
return newcn, nil
}
func (p *ConnPool) getTurn() {
p.queue <- struct{}{}
}
func (p *ConnPool) waitTurn(ctx context.Context) error {
select {
case <-ctx.Done():
@ -301,7 +297,7 @@ func (p *ConnPool) waitTurn(ctx context.Context) error {
}
timer := timers.Get().(*time.Timer)
timer.Reset(p.opt.PoolTimeout)
timer.Reset(p.cfg.PoolTimeout)
select {
case <-ctx.Done():
@ -337,7 +333,7 @@ func (p *ConnPool) popIdle() (*Conn, error) {
}
var cn *Conn
if p.opt.PoolFIFO {
if p.cfg.PoolFIFO {
cn = p.idleConns[0]
copy(p.idleConns, p.idleConns[1:])
p.idleConns = p.idleConns[:n-1]
@ -363,14 +359,28 @@ func (p *ConnPool) Put(ctx context.Context, cn *Conn) {
return
}
var shouldCloseConn bool
p.connsMu.Lock()
if p.cfg.MaxIdleConns == 0 || p.idleConnsLen < p.cfg.MaxIdleConns {
p.idleConns = append(p.idleConns, cn)
p.idleConnsLen++
p.connsMu.Unlock()
p.freeTurn()
} else {
p.removeConn(cn)
shouldCloseConn = true
}
func (p *ConnPool) Remove(ctx context.Context, cn *Conn, reason error) {
p.connsMu.Unlock()
p.freeTurn()
if shouldCloseConn {
_ = p.closeConn(cn)
}
}
func (p *ConnPool) Remove(_ context.Context, cn *Conn, reason error) {
p.removeConnWithLock(cn)
p.freeTurn()
_ = p.closeConn(cn)
@ -383,8 +393,8 @@ func (p *ConnPool) CloseConn(cn *Conn) error {
func (p *ConnPool) removeConnWithLock(cn *Conn) {
p.connsMu.Lock()
defer p.connsMu.Unlock()
p.removeConn(cn)
p.connsMu.Unlock()
}
func (p *ConnPool) removeConn(cn *Conn) {
@ -395,15 +405,13 @@ func (p *ConnPool) removeConn(cn *Conn) {
p.poolSize--
p.checkMinIdleConns()
}
return
break
}
}
atomic.AddUint32(&p.stats.StaleConns, 1)
}
func (p *ConnPool) closeConn(cn *Conn) error {
if p.opt.OnClose != nil {
_ = p.opt.OnClose(cn)
}
return cn.Close()
}
@ -424,14 +432,13 @@ func (p *ConnPool) IdleLen() int {
}
func (p *ConnPool) Stats() *Stats {
idleLen := p.IdleLen()
return &Stats{
Hits: atomic.LoadUint32(&p.stats.Hits),
Misses: atomic.LoadUint32(&p.stats.Misses),
Timeouts: atomic.LoadUint32(&p.stats.Timeouts),
TotalConns: uint32(p.Len()),
IdleConns: uint32(idleLen),
IdleConns: uint32(p.IdleLen()),
StaleConns: atomic.LoadUint32(&p.stats.StaleConns),
}
}
@ -459,7 +466,6 @@ func (p *ConnPool) Close() error {
if !atomic.CompareAndSwapUint32(&p._closed, 0, 1) {
return ErrClosed
}
close(p.closedCh)
var firstErr error
p.connsMu.Lock()
@ -477,81 +483,20 @@ func (p *ConnPool) Close() error {
return firstErr
}
func (p *ConnPool) reaper(frequency time.Duration) {
ticker := time.NewTicker(frequency)
defer ticker.Stop()
for {
select {
case <-ticker.C:
// It is possible that ticker and closedCh arrive together,
// and select pseudo-randomly pick ticker case, we double
// check here to prevent being executed after closed.
if p.closed() {
return
}
_, err := p.ReapStaleConns()
if err != nil {
internal.Logger.Printf(context.Background(), "ReapStaleConns failed: %s", err)
continue
}
case <-p.closedCh:
return
}
}
}
func (p *ConnPool) ReapStaleConns() (int, error) {
var n int
for {
p.getTurn()
p.connsMu.Lock()
cn := p.reapStaleConn()
p.connsMu.Unlock()
p.freeTurn()
if cn != nil {
_ = p.closeConn(cn)
n++
} else {
break
}
}
atomic.AddUint32(&p.stats.StaleConns, uint32(n))
return n, nil
}
func (p *ConnPool) reapStaleConn() *Conn {
if len(p.idleConns) == 0 {
return nil
}
cn := p.idleConns[0]
if !p.isStaleConn(cn) {
return nil
}
p.idleConns = append(p.idleConns[:0], p.idleConns[1:]...)
p.idleConnsLen--
p.removeConn(cn)
return cn
}
func (p *ConnPool) isStaleConn(cn *Conn) bool {
if p.opt.IdleTimeout == 0 && p.opt.MaxConnAge == 0 {
return false
}
func (p *ConnPool) isHealthyConn(cn *Conn) bool {
now := time.Now()
if p.opt.IdleTimeout > 0 && now.Sub(cn.UsedAt()) >= p.opt.IdleTimeout {
return true
}
if p.opt.MaxConnAge > 0 && now.Sub(cn.createdAt) >= p.opt.MaxConnAge {
return true
}
if p.cfg.ConnMaxLifetime > 0 && now.Sub(cn.createdAt) >= p.cfg.ConnMaxLifetime {
return false
}
if p.cfg.ConnMaxIdleTime > 0 && now.Sub(cn.UsedAt()) >= p.cfg.ConnMaxIdleTime {
return false
}
if connCheck(cn.netConn) != nil {
return false
}
cn.SetUsedAt(now)
return true
}

View File

@ -0,0 +1,552 @@
package proto
import (
"bufio"
"errors"
"fmt"
"io"
"math"
"math/big"
"strconv"
"github.com/redis/go-redis/v9/internal/util"
)
// redis resp protocol data type.
const (
RespStatus = '+' // +<string>\r\n
RespError = '-' // -<string>\r\n
RespString = '$' // $<length>\r\n<bytes>\r\n
RespInt = ':' // :<number>\r\n
RespNil = '_' // _\r\n
RespFloat = ',' // ,<floating-point-number>\r\n (golang float)
RespBool = '#' // true: #t\r\n false: #f\r\n
RespBlobError = '!' // !<length>\r\n<bytes>\r\n
RespVerbatim = '=' // =<length>\r\nFORMAT:<bytes>\r\n
RespBigInt = '(' // (<big number>\r\n
RespArray = '*' // *<len>\r\n... (same as resp2)
RespMap = '%' // %<len>\r\n(key)\r\n(value)\r\n... (golang map)
RespSet = '~' // ~<len>\r\n... (same as Array)
RespAttr = '|' // |<len>\r\n(key)\r\n(value)\r\n... + command reply
RespPush = '>' // ><len>\r\n... (same as Array)
)
// Not used temporarily.
// Redis has not used these two data types for the time being, and will implement them later.
// Streamed = "EOF:"
// StreamedAggregated = '?'
//------------------------------------------------------------------------------
const Nil = RedisError("redis: nil") // nolint:errname
type RedisError string
func (e RedisError) Error() string { return string(e) }
func (RedisError) RedisError() {}
func ParseErrorReply(line []byte) error {
return RedisError(line[1:])
}
//------------------------------------------------------------------------------
type Reader struct {
rd *bufio.Reader
}
func NewReader(rd io.Reader) *Reader {
return &Reader{
rd: bufio.NewReader(rd),
}
}
func (r *Reader) Buffered() int {
return r.rd.Buffered()
}
func (r *Reader) Peek(n int) ([]byte, error) {
return r.rd.Peek(n)
}
func (r *Reader) Reset(rd io.Reader) {
r.rd.Reset(rd)
}
// PeekReplyType returns the data type of the next response without advancing the Reader,
// and discard the attribute type.
func (r *Reader) PeekReplyType() (byte, error) {
b, err := r.rd.Peek(1)
if err != nil {
return 0, err
}
if b[0] == RespAttr {
if err = r.DiscardNext(); err != nil {
return 0, err
}
return r.PeekReplyType()
}
return b[0], nil
}
// ReadLine Return a valid reply, it will check the protocol or redis error,
// and discard the attribute type.
func (r *Reader) ReadLine() ([]byte, error) {
line, err := r.readLine()
if err != nil {
return nil, err
}
switch line[0] {
case RespError:
return nil, ParseErrorReply(line)
case RespNil:
return nil, Nil
case RespBlobError:
var blobErr string
blobErr, err = r.readStringReply(line)
if err == nil {
err = RedisError(blobErr)
}
return nil, err
case RespAttr:
if err = r.Discard(line); err != nil {
return nil, err
}
return r.ReadLine()
}
// Compatible with RESP2
if IsNilReply(line) {
return nil, Nil
}
return line, nil
}
// readLine returns an error if:
// - there is a pending read error;
// - or line does not end with \r\n.
func (r *Reader) readLine() ([]byte, error) {
b, err := r.rd.ReadSlice('\n')
if err != nil {
if err != bufio.ErrBufferFull {
return nil, err
}
full := make([]byte, len(b))
copy(full, b)
b, err = r.rd.ReadBytes('\n')
if err != nil {
return nil, err
}
full = append(full, b...) //nolint:makezero
b = full
}
if len(b) <= 2 || b[len(b)-1] != '\n' || b[len(b)-2] != '\r' {
return nil, fmt.Errorf("redis: invalid reply: %q", b)
}
return b[:len(b)-2], nil
}
func (r *Reader) ReadReply() (interface{}, error) {
line, err := r.ReadLine()
if err != nil {
return nil, err
}
switch line[0] {
case RespStatus:
return string(line[1:]), nil
case RespInt:
return util.ParseInt(line[1:], 10, 64)
case RespFloat:
return r.readFloat(line)
case RespBool:
return r.readBool(line)
case RespBigInt:
return r.readBigInt(line)
case RespString:
return r.readStringReply(line)
case RespVerbatim:
return r.readVerb(line)
case RespArray, RespSet, RespPush:
return r.readSlice(line)
case RespMap:
return r.readMap(line)
}
return nil, fmt.Errorf("redis: can't parse %.100q", line)
}
func (r *Reader) readFloat(line []byte) (float64, error) {
v := string(line[1:])
switch string(line[1:]) {
case "inf":
return math.Inf(1), nil
case "-inf":
return math.Inf(-1), nil
case "nan", "-nan":
return math.NaN(), nil
}
return strconv.ParseFloat(v, 64)
}
func (r *Reader) readBool(line []byte) (bool, error) {
switch string(line[1:]) {
case "t":
return true, nil
case "f":
return false, nil
}
return false, fmt.Errorf("redis: can't parse bool reply: %q", line)
}
func (r *Reader) readBigInt(line []byte) (*big.Int, error) {
i := new(big.Int)
if i, ok := i.SetString(string(line[1:]), 10); ok {
return i, nil
}
return nil, fmt.Errorf("redis: can't parse bigInt reply: %q", line)
}
func (r *Reader) readStringReply(line []byte) (string, error) {
n, err := replyLen(line)
if err != nil {
return "", err
}
b := make([]byte, n+2)
_, err = io.ReadFull(r.rd, b)
if err != nil {
return "", err
}
return util.BytesToString(b[:n]), nil
}
func (r *Reader) readVerb(line []byte) (string, error) {
s, err := r.readStringReply(line)
if err != nil {
return "", err
}
if len(s) < 4 || s[3] != ':' {
return "", fmt.Errorf("redis: can't parse verbatim string reply: %q", line)
}
return s[4:], nil
}
func (r *Reader) readSlice(line []byte) ([]interface{}, error) {
n, err := replyLen(line)
if err != nil {
return nil, err
}
val := make([]interface{}, n)
for i := 0; i < len(val); i++ {
v, err := r.ReadReply()
if err != nil {
if err == Nil {
val[i] = nil
continue
}
if err, ok := err.(RedisError); ok {
val[i] = err
continue
}
return nil, err
}
val[i] = v
}
return val, nil
}
func (r *Reader) readMap(line []byte) (map[interface{}]interface{}, error) {
n, err := replyLen(line)
if err != nil {
return nil, err
}
m := make(map[interface{}]interface{}, n)
for i := 0; i < n; i++ {
k, err := r.ReadReply()
if err != nil {
return nil, err
}
v, err := r.ReadReply()
if err != nil {
if err == Nil {
m[k] = nil
continue
}
if err, ok := err.(RedisError); ok {
m[k] = err
continue
}
return nil, err
}
m[k] = v
}
return m, nil
}
// -------------------------------
func (r *Reader) ReadInt() (int64, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case RespInt, RespStatus:
return util.ParseInt(line[1:], 10, 64)
case RespString:
s, err := r.readStringReply(line)
if err != nil {
return 0, err
}
return util.ParseInt([]byte(s), 10, 64)
case RespBigInt:
b, err := r.readBigInt(line)
if err != nil {
return 0, err
}
if !b.IsInt64() {
return 0, fmt.Errorf("bigInt(%s) value out of range", b.String())
}
return b.Int64(), nil
}
return 0, fmt.Errorf("redis: can't parse int reply: %.100q", line)
}
func (r *Reader) ReadUint() (uint64, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case RespInt, RespStatus:
return util.ParseUint(line[1:], 10, 64)
case RespString:
s, err := r.readStringReply(line)
if err != nil {
return 0, err
}
return util.ParseUint([]byte(s), 10, 64)
case RespBigInt:
b, err := r.readBigInt(line)
if err != nil {
return 0, err
}
if !b.IsUint64() {
return 0, fmt.Errorf("bigInt(%s) value out of range", b.String())
}
return b.Uint64(), nil
}
return 0, fmt.Errorf("redis: can't parse uint reply: %.100q", line)
}
func (r *Reader) ReadFloat() (float64, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case RespFloat:
return r.readFloat(line)
case RespStatus:
return strconv.ParseFloat(string(line[1:]), 64)
case RespString:
s, err := r.readStringReply(line)
if err != nil {
return 0, err
}
return strconv.ParseFloat(s, 64)
}
return 0, fmt.Errorf("redis: can't parse float reply: %.100q", line)
}
func (r *Reader) ReadString() (string, error) {
line, err := r.ReadLine()
if err != nil {
return "", err
}
switch line[0] {
case RespStatus, RespInt, RespFloat:
return string(line[1:]), nil
case RespString:
return r.readStringReply(line)
case RespBool:
b, err := r.readBool(line)
return strconv.FormatBool(b), err
case RespVerbatim:
return r.readVerb(line)
case RespBigInt:
b, err := r.readBigInt(line)
if err != nil {
return "", err
}
return b.String(), nil
}
return "", fmt.Errorf("redis: can't parse reply=%.100q reading string", line)
}
func (r *Reader) ReadBool() (bool, error) {
s, err := r.ReadString()
if err != nil {
return false, err
}
return s == "OK" || s == "1" || s == "true", nil
}
func (r *Reader) ReadSlice() ([]interface{}, error) {
line, err := r.ReadLine()
if err != nil {
return nil, err
}
return r.readSlice(line)
}
// ReadFixedArrayLen read fixed array length.
func (r *Reader) ReadFixedArrayLen(fixedLen int) error {
n, err := r.ReadArrayLen()
if err != nil {
return err
}
if n != fixedLen {
return fmt.Errorf("redis: got %d elements in the array, wanted %d", n, fixedLen)
}
return nil
}
// ReadArrayLen Read and return the length of the array.
func (r *Reader) ReadArrayLen() (int, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case RespArray, RespSet, RespPush:
return replyLen(line)
default:
return 0, fmt.Errorf("redis: can't parse array/set/push reply: %.100q", line)
}
}
// ReadFixedMapLen reads fixed map length.
func (r *Reader) ReadFixedMapLen(fixedLen int) error {
n, err := r.ReadMapLen()
if err != nil {
return err
}
if n != fixedLen {
return fmt.Errorf("redis: got %d elements in the map, wanted %d", n, fixedLen)
}
return nil
}
// ReadMapLen reads the length of the map type.
// If responding to the array type (RespArray/RespSet/RespPush),
// it must be a multiple of 2 and return n/2.
// Other types will return an error.
func (r *Reader) ReadMapLen() (int, error) {
line, err := r.ReadLine()
if err != nil {
return 0, err
}
switch line[0] {
case RespMap:
return replyLen(line)
case RespArray, RespSet, RespPush:
// Some commands and RESP2 protocol may respond to array types.
n, err := replyLen(line)
if err != nil {
return 0, err
}
if n%2 != 0 {
return 0, fmt.Errorf("redis: the length of the array must be a multiple of 2, got: %d", n)
}
return n / 2, nil
default:
return 0, fmt.Errorf("redis: can't parse map reply: %.100q", line)
}
}
// DiscardNext read and discard the data represented by the next line.
func (r *Reader) DiscardNext() error {
line, err := r.readLine()
if err != nil {
return err
}
return r.Discard(line)
}
// Discard the data represented by line.
func (r *Reader) Discard(line []byte) (err error) {
if len(line) == 0 {
return errors.New("redis: invalid line")
}
switch line[0] {
case RespStatus, RespError, RespInt, RespNil, RespFloat, RespBool, RespBigInt:
return nil
}
n, err := replyLen(line)
if err != nil && err != Nil {
return err
}
switch line[0] {
case RespBlobError, RespString, RespVerbatim:
// +\r\n
_, err = r.rd.Discard(n + 2)
return err
case RespArray, RespSet, RespPush:
for i := 0; i < n; i++ {
if err = r.DiscardNext(); err != nil {
return err
}
}
return nil
case RespMap, RespAttr:
// Read key & value.
for i := 0; i < n*2; i++ {
if err = r.DiscardNext(); err != nil {
return err
}
}
return nil
}
return fmt.Errorf("redis: can't parse %.100q", line)
}
func replyLen(line []byte) (n int, err error) {
n, err = util.Atoi(line[1:])
if err != nil {
return 0, err
}
if n < -1 {
return 0, fmt.Errorf("redis: invalid reply: %q", line)
}
switch line[0] {
case RespString, RespVerbatim, RespBlobError,
RespArray, RespSet, RespPush, RespMap, RespAttr:
if n == -1 {
return 0, Nil
}
}
return n, nil
}
// IsNilReply detects redis.Nil of RESP2.
func IsNilReply(line []byte) bool {
return len(line) == 3 &&
(line[0] == RespString || line[0] == RespArray) &&
line[1] == '-' && line[2] == '1'
}

View File

@ -3,13 +3,15 @@ package proto
import (
"encoding"
"fmt"
"net"
"reflect"
"time"
"github.com/go-redis/redis/v8/internal/util"
"github.com/redis/go-redis/v9/internal/util"
)
// Scan parses bytes `b` to `v` with appropriate type.
//
//nolint:gocyclo
func Scan(b []byte, v interface{}) error {
switch v := v.(type) {
@ -115,6 +117,9 @@ func Scan(b []byte, v interface{}) error {
return nil
case encoding.BinaryUnmarshaler:
return v.UnmarshalBinary(b)
case *net.IP:
*v = b
return nil
default:
return fmt.Errorf(
"redis: can't unmarshal %T (consider implementing BinaryUnmarshaler)", v)

View File

@ -4,16 +4,17 @@ import (
"encoding"
"fmt"
"io"
"net"
"strconv"
"time"
"github.com/go-redis/redis/v8/internal/util"
"github.com/redis/go-redis/v9/internal/util"
)
type writer interface {
io.Writer
io.ByteWriter
// io.StringWriter
// WriteString implement io.StringWriter.
WriteString(s string) (n int, err error)
}
@ -34,7 +35,7 @@ func NewWriter(wr writer) *Writer {
}
func (w *Writer) WriteArgs(args []interface{}) error {
if err := w.WriteByte(ArrayReply); err != nil {
if err := w.WriteByte(RespArray); err != nil {
return err
}
@ -106,6 +107,8 @@ func (w *Writer) WriteArg(v interface{}) error {
return err
}
return w.bytes(b)
case net.IP:
return w.bytes(v)
default:
return fmt.Errorf(
"redis: can't marshal %T (implement encoding.BinaryMarshaler)", v)
@ -113,7 +116,7 @@ func (w *Writer) WriteArg(v interface{}) error {
}
func (w *Writer) bytes(b []byte) error {
if err := w.WriteByte(StringReply); err != nil {
if err := w.WriteByte(RespString); err != nil {
return err
}

View File

@ -4,7 +4,7 @@ import (
"context"
"time"
"github.com/go-redis/redis/v8/internal/util"
"github.com/redis/go-redis/v9/internal/util"
)
func Sleep(ctx context.Context, dur time.Duration) error {

View File

@ -2,30 +2,21 @@ package redis
import (
"context"
"sync"
)
// ScanIterator is used to incrementally iterate over a collection of elements.
// It's safe for concurrent use by multiple goroutines.
type ScanIterator struct {
mu sync.Mutex // protects Scanner and pos
cmd *ScanCmd
pos int
}
// Err returns the last iterator error, if any.
func (it *ScanIterator) Err() error {
it.mu.Lock()
err := it.cmd.Err()
it.mu.Unlock()
return err
return it.cmd.Err()
}
// Next advances the cursor and returns true if more values can be read.
func (it *ScanIterator) Next(ctx context.Context) bool {
it.mu.Lock()
defer it.mu.Unlock()
// Instantly return on errors.
if it.cmd.Err() != nil {
return false
@ -68,10 +59,8 @@ func (it *ScanIterator) Next(ctx context.Context) bool {
// Val returns the key/field at the current cursor position.
func (it *ScanIterator) Val() string {
var v string
it.mu.Lock()
if it.cmd.Err() == nil && it.pos > 0 && it.pos <= len(it.cmd.page) {
v = it.cmd.page[it.pos-1]
}
it.mu.Unlock()
return v
}

View File

@ -13,7 +13,7 @@ import (
"strings"
"time"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/redis/go-redis/v9/internal/pool"
)
// Limiter is the interface of a rate limiter or a circuit breaker.
@ -35,6 +35,9 @@ type Options struct {
// host:port address.
Addr string
// ClientName will execute the `CLIENT SETNAME ClientName` command for each conn.
ClientName string
// Dialer creates new network connection and has priority over
// Network and Addr options.
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
@ -42,6 +45,9 @@ type Options struct {
// Hook that is called when new connection is established.
OnConnect func(ctx context.Context, cn *Conn) error
// Protocol 2 or 3. Use the version to negotiate RESP version with redis-server.
// Default is 3.
Protocol int
// Use the specified Username to authenticate the current connection
// with one of the connections defined in the ACL list when connecting
// to a Redis 6.0 instance, or greater, that is using the Redis ACL system.
@ -51,6 +57,9 @@ type Options struct {
// or the User Password when connecting to a Redis 6.0 instance, or greater,
// that is using the Redis ACL system.
Password string
// CredentialsProvider allows the username and password to be updated
// before reconnecting. It should return the current username and password.
CredentialsProvider func() (username string, password string)
// Database to be selected after connecting to the server.
DB int
@ -69,49 +78,64 @@ type Options struct {
// Default is 5 seconds.
DialTimeout time.Duration
// Timeout for socket reads. If reached, commands will fail
// with a timeout instead of blocking. Use value -1 for no timeout and 0 for default.
// Default is 3 seconds.
// with a timeout instead of blocking. Supported values:
// - `0` - default timeout (3 seconds).
// - `-1` - no timeout (block indefinitely).
// - `-2` - disables SetReadDeadline calls completely.
ReadTimeout time.Duration
// Timeout for socket writes. If reached, commands will fail
// with a timeout instead of blocking.
// Default is ReadTimeout.
// with a timeout instead of blocking. Supported values:
// - `0` - default timeout (3 seconds).
// - `-1` - no timeout (block indefinitely).
// - `-2` - disables SetWriteDeadline calls completely.
WriteTimeout time.Duration
// ContextTimeoutEnabled controls whether the client respects context timeouts and deadlines.
// See https://redis.uptrace.dev/guide/go-redis-debugging.html#timeouts
ContextTimeoutEnabled bool
// Type of connection pool.
// true for FIFO pool, false for LIFO pool.
// Note that fifo has higher overhead compared to lifo.
// Note that FIFO has slightly higher overhead compared to LIFO,
// but it helps closing idle connections faster reducing the pool size.
PoolFIFO bool
// Maximum number of socket connections.
// Default is 10 connections per every available CPU as reported by runtime.GOMAXPROCS.
PoolSize int
// Minimum number of idle connections which is useful when establishing
// new connection is slow.
MinIdleConns int
// Connection age at which client retires (closes) the connection.
// Default is to not close aged connections.
MaxConnAge time.Duration
// Amount of time client waits for connection if all connections
// are busy before returning an error.
// Default is ReadTimeout + 1 second.
PoolTimeout time.Duration
// Amount of time after which client closes idle connections.
// Minimum number of idle connections which is useful when establishing
// new connection is slow.
// Default is 0. the idle connections are not closed by default.
MinIdleConns int
// Maximum number of idle connections.
// Default is 0. the idle connections are not closed by default.
MaxIdleConns int
// ConnMaxIdleTime is the maximum amount of time a connection may be idle.
// Should be less than server's timeout.
// Default is 5 minutes. -1 disables idle timeout check.
IdleTimeout time.Duration
// Frequency of idle checks made by idle connections reaper.
// Default is 1 minute. -1 disables idle connections reaper,
// but idle connections are still discarded by the client
// if IdleTimeout is set.
IdleCheckFrequency time.Duration
//
// Expired connections may be closed lazily before reuse.
// If d <= 0, connections are not closed due to a connection's idle time.
//
// Default is 30 minutes. -1 disables idle timeout check.
ConnMaxIdleTime time.Duration
// ConnMaxLifetime is the maximum amount of time a connection may be reused.
//
// Expired connections may be closed lazily before reuse.
// If <= 0, connections are not closed due to a connection's age.
//
// Default is to not close idle connections.
ConnMaxLifetime time.Duration
// Enables read only queries on slave nodes.
readOnly bool
// TLS Config to use. When set TLS will be negotiated.
// TLS Config to use. When set, TLS will be negotiated.
TLSConfig *tls.Config
// Limiter interface used to implemented circuit breaker or rate limiter.
// Limiter interface used to implement circuit breaker or rate limiter.
Limiter Limiter
// Enables read only queries on slave/follower nodes.
readOnly bool
}
func (opt *Options) init() {
@ -129,40 +153,36 @@ func (opt *Options) init() {
opt.DialTimeout = 5 * time.Second
}
if opt.Dialer == nil {
opt.Dialer = func(ctx context.Context, network, addr string) (net.Conn, error) {
netDialer := &net.Dialer{
Timeout: opt.DialTimeout,
KeepAlive: 5 * time.Minute,
}
if opt.TLSConfig == nil {
return netDialer.DialContext(ctx, network, addr)
}
return tls.DialWithDialer(netDialer, network, addr, opt.TLSConfig)
}
opt.Dialer = NewDialer(opt)
}
if opt.PoolSize == 0 {
opt.PoolSize = 10 * runtime.GOMAXPROCS(0)
}
switch opt.ReadTimeout {
case -2:
opt.ReadTimeout = -1
case -1:
opt.ReadTimeout = 0
case 0:
opt.ReadTimeout = 3 * time.Second
}
switch opt.WriteTimeout {
case -2:
opt.WriteTimeout = -1
case -1:
opt.WriteTimeout = 0
case 0:
opt.WriteTimeout = opt.ReadTimeout
}
if opt.PoolTimeout == 0 {
if opt.ReadTimeout > 0 {
opt.PoolTimeout = opt.ReadTimeout + time.Second
} else {
opt.PoolTimeout = 30 * time.Second
}
if opt.IdleTimeout == 0 {
opt.IdleTimeout = 5 * time.Minute
}
if opt.IdleCheckFrequency == 0 {
opt.IdleCheckFrequency = time.Minute
if opt.ConnMaxIdleTime == 0 {
opt.ConnMaxIdleTime = 30 * time.Minute
}
if opt.MaxRetries == -1 {
@ -189,13 +209,32 @@ func (opt *Options) clone() *Options {
return &clone
}
// NewDialer returns a function that will be used as the default dialer
// when none is specified in Options.Dialer.
func NewDialer(opt *Options) func(context.Context, string, string) (net.Conn, error) {
return func(ctx context.Context, network, addr string) (net.Conn, error) {
netDialer := &net.Dialer{
Timeout: opt.DialTimeout,
KeepAlive: 5 * time.Minute,
}
if opt.TLSConfig == nil {
return netDialer.DialContext(ctx, network, addr)
}
return tls.DialWithDialer(netDialer, network, addr, opt.TLSConfig)
}
}
// ParseURL parses an URL into Options that can be used to connect to Redis.
// Scheme is required.
// There are two connection types: by tcp socket and by unix socket.
// Tcp connection:
//
// redis://<user>:<password>@<host>:<port>/<db_number>
//
// Unix connection:
//
// unix://<user>:<password>@</path/to/redis.sock>?db=<db_number>
//
// Most Option fields can be set using query parameters, with the following restrictions:
// - field names are mapped using snake-case conversion: to set MaxRetries, use max_retries
// - only scalar type fields are supported (bool, int, time.Duration)
@ -208,7 +247,9 @@ func (opt *Options) clone() *Options {
// URL attributes (scheme, host, userinfo, resp.), query paremeters using these
// names will be treated as unknown parameters
// - unknown parameter names will result in an error
//
// Examples:
//
// redis://user:password@localhost:6789/3?dial_timeout=3&db=1&read_timeout=6s&max_retries=2
// is equivalent to:
// &Options{
@ -240,16 +281,7 @@ func setupTCPConn(u *url.URL) (*Options, error) {
o.Username, o.Password = getUserPassword(u)
h, p, err := net.SplitHostPort(u.Host)
if err != nil {
h = u.Host
}
if h == "" {
h = "localhost"
}
if p == "" {
p = "6379"
}
h, p := getHostPortWithDefaults(u)
o.Addr = net.JoinHostPort(h, p)
f := strings.FieldsFunc(u.Path, func(r rune) bool {
@ -259,6 +291,7 @@ func setupTCPConn(u *url.URL) (*Options, error) {
case 0:
o.DB = 0
case 1:
var err error
if o.DB, err = strconv.Atoi(f[0]); err != nil {
return nil, fmt.Errorf("redis: invalid database number: %q", f[0])
}
@ -267,12 +300,32 @@ func setupTCPConn(u *url.URL) (*Options, error) {
}
if u.Scheme == "rediss" {
o.TLSConfig = &tls.Config{ServerName: h}
o.TLSConfig = &tls.Config{
ServerName: h,
MinVersion: tls.VersionTLS12,
}
}
return setupConnParams(u, o)
}
// getHostPortWithDefaults is a helper function that splits the url into
// a host and a port. If the host is missing, it defaults to localhost
// and if the port is missing, it defaults to 6379.
func getHostPortWithDefaults(u *url.URL) (string, string) {
host, port, err := net.SplitHostPort(u.Host)
if err != nil {
host = u.Host
}
if host == "" {
host = "localhost"
}
if port == "" {
port = "6379"
}
return host, port
}
func setupUnixConn(u *url.URL) (*Options, error) {
o := &Options{
Network: "unix",
@ -291,6 +344,10 @@ type queryOptions struct {
err error
}
func (o *queryOptions) has(name string) bool {
return len(o.q[name]) > 0
}
func (o *queryOptions) string(name string) string {
vs := o.q[name]
if len(vs) == 0 {
@ -300,6 +357,12 @@ func (o *queryOptions) string(name string) string {
return vs[len(vs)-1]
}
func (o *queryOptions) strings(name string) []string {
vs := o.q[name]
delete(o.q, name)
return vs
}
func (o *queryOptions) int(name string) int {
s := o.string(name)
if s == "" {
@ -377,6 +440,8 @@ func setupConnParams(u *url.URL, o *Options) (*Options, error) {
o.DB = db
}
o.Protocol = q.int("protocol")
o.ClientName = q.string("client_name")
o.MaxRetries = q.int("max_retries")
o.MinRetryBackoff = q.duration("min_retry_backoff")
o.MaxRetryBackoff = q.duration("max_retry_backoff")
@ -385,11 +450,19 @@ func setupConnParams(u *url.URL, o *Options) (*Options, error) {
o.WriteTimeout = q.duration("write_timeout")
o.PoolFIFO = q.bool("pool_fifo")
o.PoolSize = q.int("pool_size")
o.MinIdleConns = q.int("min_idle_conns")
o.MaxConnAge = q.duration("max_conn_age")
o.PoolTimeout = q.duration("pool_timeout")
o.IdleTimeout = q.duration("idle_timeout")
o.IdleCheckFrequency = q.duration("idle_check_frequency")
o.MinIdleConns = q.int("min_idle_conns")
o.MaxIdleConns = q.int("max_idle_conns")
if q.has("conn_max_idle_time") {
o.ConnMaxIdleTime = q.duration("conn_max_idle_time")
} else {
o.ConnMaxIdleTime = q.duration("idle_timeout")
}
if q.has("conn_max_lifetime") {
o.ConnMaxLifetime = q.duration("conn_max_lifetime")
} else {
o.ConnMaxLifetime = q.duration("max_conn_age")
}
if q.err != nil {
return nil, q.err
}
@ -413,17 +486,20 @@ func getUserPassword(u *url.URL) (string, string) {
return user, password
}
func newConnPool(opt *Options) *pool.ConnPool {
func newConnPool(
opt *Options,
dialer func(ctx context.Context, network, addr string) (net.Conn, error),
) *pool.ConnPool {
return pool.NewConnPool(&pool.Options{
Dialer: func(ctx context.Context) (net.Conn, error) {
return opt.Dialer(ctx, opt.Network, opt.Addr)
return dialer(ctx, opt.Network, opt.Addr)
},
PoolFIFO: opt.PoolFIFO,
PoolSize: opt.PoolSize,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxIdleConns: opt.MaxIdleConns,
ConnMaxIdleTime: opt.ConnMaxIdleTime,
ConnMaxLifetime: opt.ConnMaxLifetime,
})
}

View File

@ -1,8 +1,8 @@
{
"name": "redis",
"version": "8.11.5",
"version": "9.1.0",
"main": "index.js",
"repository": "git@github.com:go-redis/redis.git",
"repository": "git@github.com:redis/go-redis.git",
"author": "Vladimir Mihailenco <vladimir.webdev@gmail.com>",
"license": "BSD-2-clause"
}

View File

@ -2,9 +2,7 @@ package redis
import (
"context"
"sync"
"github.com/go-redis/redis/v8/internal/pool"
"errors"
)
type pipelineExecer func(context.Context, []Cmder) error
@ -13,7 +11,7 @@ type pipelineExecer func(context.Context, []Cmder) error
//
// Pipelining is a technique to extremely speed up processing by packing
// operations to batches, send them at once to Redis and read a replies in a
// singe step.
// single step.
// See https://redis.io/topics/pipelining
//
// Pay attention, that Pipeline is not a transaction, so you can get unexpected
@ -24,29 +22,35 @@ type pipelineExecer func(context.Context, []Cmder) error
// depends of your batch size and/or use TxPipeline.
type Pipeliner interface {
StatefulCmdable
// Len is to obtain the number of commands in the pipeline that have not yet been executed.
Len() int
// Do is an API for executing any command.
// If a certain Redis command is not yet supported, you can use Do to execute it.
Do(ctx context.Context, args ...interface{}) *Cmd
// Process is to put the commands to be executed into the pipeline buffer.
Process(ctx context.Context, cmd Cmder) error
Close() error
Discard() error
// Discard is to discard all commands in the cache that have not yet been executed.
Discard()
// Exec is to send all the commands buffered in the pipeline to the redis-server.
Exec(ctx context.Context) ([]Cmder, error)
}
var _ Pipeliner = (*Pipeline)(nil)
// Pipeline implements pipelining as described in
// http://redis.io/topics/pipelining. It's safe for concurrent use
// by multiple goroutines.
// http://redis.io/topics/pipelining.
// Please note: it is not safe for concurrent use by multiple goroutines.
type Pipeline struct {
cmdable
statefulCmdable
ctx context.Context
exec pipelineExecer
mu sync.Mutex
cmds []Cmder
closed bool
}
func (c *Pipeline) init() {
@ -56,50 +60,29 @@ func (c *Pipeline) init() {
// Len returns the number of queued commands.
func (c *Pipeline) Len() int {
c.mu.Lock()
ln := len(c.cmds)
c.mu.Unlock()
return ln
return len(c.cmds)
}
// Do queues the custom command for later execution.
func (c *Pipeline) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
if len(args) == 0 {
cmd.SetErr(errors.New("redis: please enter the command to be executed"))
return cmd
}
_ = c.Process(ctx, cmd)
return cmd
}
// Process queues the cmd for later execution.
func (c *Pipeline) Process(ctx context.Context, cmd Cmder) error {
c.mu.Lock()
c.cmds = append(c.cmds, cmd)
c.mu.Unlock()
return nil
}
// Close closes the pipeline, releasing any open resources.
func (c *Pipeline) Close() error {
c.mu.Lock()
_ = c.discard()
c.closed = true
c.mu.Unlock()
return nil
}
// Discard resets the pipeline and discards queued commands.
func (c *Pipeline) Discard() error {
c.mu.Lock()
err := c.discard()
c.mu.Unlock()
return err
}
func (c *Pipeline) discard() error {
if c.closed {
return pool.ErrClosed
}
func (c *Pipeline) Discard() {
c.cmds = c.cmds[:0]
return nil
}
// Exec executes all previously queued commands using one
@ -108,13 +91,6 @@ func (c *Pipeline) discard() error {
// Exec always returns list of commands and error of the first failed
// command if any.
func (c *Pipeline) Exec(ctx context.Context) ([]Cmder, error) {
c.mu.Lock()
defer c.mu.Unlock()
if c.closed {
return nil, pool.ErrClosed
}
if len(c.cmds) == 0 {
return nil, nil
}
@ -129,9 +105,7 @@ func (c *Pipeline) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]C
if err := fn(c); err != nil {
return nil, err
}
cmds, err := c.Exec(ctx)
_ = c.Close()
return cmds, err
return c.Exec(ctx)
}
func (c *Pipeline) Pipeline() Pipeliner {

1433
vendor/github.com/redis/go-redis/v9/probabilistic.go generated vendored Normal file

File diff suppressed because it is too large Load Diff

View File

@ -7,9 +7,9 @@ import (
"sync"
"time"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
"github.com/redis/go-redis/v9/internal"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/proto"
)
// PubSub implements Pub/Sub commands as described in
@ -28,6 +28,7 @@ type PubSub struct {
cn *pool.Conn
channels map[string]struct{}
patterns map[string]struct{}
schannels map[string]struct{}
closed bool
exit chan struct{}
@ -46,6 +47,7 @@ func (c *PubSub) init() {
func (c *PubSub) String() string {
channels := mapKeys(c.channels)
channels = append(channels, mapKeys(c.patterns)...)
channels = append(channels, mapKeys(c.schannels)...)
return fmt.Sprintf("PubSub(%s)", strings.Join(channels, ", "))
}
@ -82,7 +84,7 @@ func (c *PubSub) conn(ctx context.Context, newChannels []string) (*pool.Conn, er
}
func (c *PubSub) writeCmd(ctx context.Context, cn *pool.Conn, cmd Cmder) error {
return cn.WithWriter(ctx, c.opt.WriteTimeout, func(wr *proto.Writer) error {
return cn.WithWriter(context.Background(), c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmd(wr, cmd)
})
}
@ -101,6 +103,13 @@ func (c *PubSub) resubscribe(ctx context.Context, cn *pool.Conn) error {
}
}
if len(c.schannels) > 0 {
err := c._subscribe(ctx, cn, "ssubscribe", mapKeys(c.schannels))
if err != nil && firstErr == nil {
firstErr = err
}
}
return firstErr
}
@ -208,15 +217,38 @@ func (c *PubSub) PSubscribe(ctx context.Context, patterns ...string) error {
return err
}
// SSubscribe Subscribes the client to the specified shard channels.
func (c *PubSub) SSubscribe(ctx context.Context, channels ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
err := c.subscribe(ctx, "ssubscribe", channels...)
if c.schannels == nil {
c.schannels = make(map[string]struct{})
}
for _, s := range channels {
c.schannels[s] = struct{}{}
}
return err
}
// Unsubscribe the client from the given channels, or from all of
// them if none is given.
func (c *PubSub) Unsubscribe(ctx context.Context, channels ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
if len(channels) > 0 {
for _, channel := range channels {
delete(c.channels, channel)
}
} else {
// Unsubscribe from all channels.
for channel := range c.channels {
delete(c.channels, channel)
}
}
err := c.subscribe(ctx, "unsubscribe", channels...)
return err
}
@ -227,13 +259,42 @@ func (c *PubSub) PUnsubscribe(ctx context.Context, patterns ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
if len(patterns) > 0 {
for _, pattern := range patterns {
delete(c.patterns, pattern)
}
} else {
// Unsubscribe from all patterns.
for pattern := range c.patterns {
delete(c.patterns, pattern)
}
}
err := c.subscribe(ctx, "punsubscribe", patterns...)
return err
}
// SUnsubscribe unsubscribes the client from the given shard channels,
// or from all of them if none is given.
func (c *PubSub) SUnsubscribe(ctx context.Context, channels ...string) error {
c.mu.Lock()
defer c.mu.Unlock()
if len(channels) > 0 {
for _, channel := range channels {
delete(c.schannels, channel)
}
} else {
// Unsubscribe from all channels.
for channel := range c.schannels {
delete(c.schannels, channel)
}
}
err := c.subscribe(ctx, "sunsubscribe", channels...)
return err
}
func (c *PubSub) subscribe(ctx context.Context, redisCmd string, channels ...string) error {
cn, err := c.conn(ctx, channels)
if err != nil {
@ -311,7 +372,7 @@ func (c *PubSub) newMessage(reply interface{}) (interface{}, error) {
}, nil
case []interface{}:
switch kind := reply[0].(string); kind {
case "subscribe", "unsubscribe", "psubscribe", "punsubscribe":
case "subscribe", "unsubscribe", "psubscribe", "punsubscribe", "ssubscribe", "sunsubscribe":
// Can be nil in case of "unsubscribe".
channel, _ := reply[1].(string)
return &Subscription{
@ -319,7 +380,7 @@ func (c *PubSub) newMessage(reply interface{}) (interface{}, error) {
Channel: channel,
Count: int(reply[2].(int64)),
}, nil
case "message":
case "message", "smessage":
switch payload := reply[2].(type) {
case string:
return &Message{
@ -371,7 +432,7 @@ func (c *PubSub) ReceiveTimeout(ctx context.Context, timeout time.Duration) (int
return nil, err
}
err = cn.WithReader(ctx, timeout, func(rd *proto.Reader) error {
err = cn.WithReader(context.Background(), timeout, func(rd *proto.Reader) error {
return c.cmd.readReply(rd)
})
@ -456,9 +517,9 @@ func (c *PubSub) ChannelSize(size int) <-chan *Message {
// reconnections.
//
// ChannelWithSubscriptions can not be used together with Channel or ChannelSize.
func (c *PubSub) ChannelWithSubscriptions(_ context.Context, size int) <-chan interface{} {
func (c *PubSub) ChannelWithSubscriptions(opts ...ChannelOption) <-chan interface{} {
c.chOnce.Do(func() {
c.allCh = newChannel(c, WithChannelSize(size))
c.allCh = newChannel(c, opts...)
c.allCh.initAllChan()
})
if c.allCh == nil {

827
vendor/github.com/redis/go-redis/v9/redis.go generated vendored Normal file
View File

@ -0,0 +1,827 @@
package redis
import (
"context"
"errors"
"fmt"
"net"
"sync/atomic"
"time"
"github.com/redis/go-redis/v9/internal"
"github.com/redis/go-redis/v9/internal/hscan"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/proto"
)
// Scanner internal/hscan.Scanner exposed interface.
type Scanner = hscan.Scanner
// Nil reply returned by Redis when key does not exist.
const Nil = proto.Nil
// SetLogger set custom log
func SetLogger(logger internal.Logging) {
internal.Logger = logger
}
//------------------------------------------------------------------------------
type Hook interface {
DialHook(next DialHook) DialHook
ProcessHook(next ProcessHook) ProcessHook
ProcessPipelineHook(next ProcessPipelineHook) ProcessPipelineHook
}
type (
DialHook func(ctx context.Context, network, addr string) (net.Conn, error)
ProcessHook func(ctx context.Context, cmd Cmder) error
ProcessPipelineHook func(ctx context.Context, cmds []Cmder) error
)
type hooksMixin struct {
slice []Hook
initial hooks
current hooks
}
func (hs *hooksMixin) initHooks(hooks hooks) {
hs.initial = hooks
hs.chain()
}
type hooks struct {
dial DialHook
process ProcessHook
pipeline ProcessPipelineHook
txPipeline ProcessPipelineHook
}
func (h *hooks) setDefaults() {
if h.dial == nil {
h.dial = func(ctx context.Context, network, addr string) (net.Conn, error) { return nil, nil }
}
if h.process == nil {
h.process = func(ctx context.Context, cmd Cmder) error { return nil }
}
if h.pipeline == nil {
h.pipeline = func(ctx context.Context, cmds []Cmder) error { return nil }
}
if h.txPipeline == nil {
h.txPipeline = func(ctx context.Context, cmds []Cmder) error { return nil }
}
}
// AddHook is to add a hook to the queue.
// Hook is a function executed during network connection, command execution, and pipeline,
// it is a first-in-first-out stack queue (FIFO).
// You need to execute the next hook in each hook, unless you want to terminate the execution of the command.
// For example, you added hook-1, hook-2:
//
// client.AddHook(hook-1, hook-2)
//
// hook-1:
//
// func (Hook1) ProcessHook(next redis.ProcessHook) redis.ProcessHook {
// return func(ctx context.Context, cmd Cmder) error {
// print("hook-1 start")
// next(ctx, cmd)
// print("hook-1 end")
// return nil
// }
// }
//
// hook-2:
//
// func (Hook2) ProcessHook(next redis.ProcessHook) redis.ProcessHook {
// return func(ctx context.Context, cmd redis.Cmder) error {
// print("hook-2 start")
// next(ctx, cmd)
// print("hook-2 end")
// return nil
// }
// }
//
// The execution sequence is:
//
// hook-1 start -> hook-2 start -> exec redis cmd -> hook-2 end -> hook-1 end
//
// Please note: "next(ctx, cmd)" is very important, it will call the next hook,
// if "next(ctx, cmd)" is not executed, the redis command will not be executed.
func (hs *hooksMixin) AddHook(hook Hook) {
hs.slice = append(hs.slice, hook)
hs.chain()
}
func (hs *hooksMixin) chain() {
hs.initial.setDefaults()
hs.current.dial = hs.initial.dial
hs.current.process = hs.initial.process
hs.current.pipeline = hs.initial.pipeline
hs.current.txPipeline = hs.initial.txPipeline
for i := len(hs.slice) - 1; i >= 0; i-- {
if wrapped := hs.slice[i].DialHook(hs.current.dial); wrapped != nil {
hs.current.dial = wrapped
}
if wrapped := hs.slice[i].ProcessHook(hs.current.process); wrapped != nil {
hs.current.process = wrapped
}
if wrapped := hs.slice[i].ProcessPipelineHook(hs.current.pipeline); wrapped != nil {
hs.current.pipeline = wrapped
}
if wrapped := hs.slice[i].ProcessPipelineHook(hs.current.txPipeline); wrapped != nil {
hs.current.txPipeline = wrapped
}
}
}
func (hs *hooksMixin) clone() hooksMixin {
clone := *hs
l := len(clone.slice)
clone.slice = clone.slice[:l:l]
return clone
}
func (hs *hooksMixin) withProcessHook(ctx context.Context, cmd Cmder, hook ProcessHook) error {
for i := len(hs.slice) - 1; i >= 0; i-- {
if wrapped := hs.slice[i].ProcessHook(hook); wrapped != nil {
hook = wrapped
}
}
return hook(ctx, cmd)
}
func (hs *hooksMixin) withProcessPipelineHook(
ctx context.Context, cmds []Cmder, hook ProcessPipelineHook,
) error {
for i := len(hs.slice) - 1; i >= 0; i-- {
if wrapped := hs.slice[i].ProcessPipelineHook(hook); wrapped != nil {
hook = wrapped
}
}
return hook(ctx, cmds)
}
func (hs *hooksMixin) dialHook(ctx context.Context, network, addr string) (net.Conn, error) {
return hs.current.dial(ctx, network, addr)
}
func (hs *hooksMixin) processHook(ctx context.Context, cmd Cmder) error {
return hs.current.process(ctx, cmd)
}
func (hs *hooksMixin) processPipelineHook(ctx context.Context, cmds []Cmder) error {
return hs.current.pipeline(ctx, cmds)
}
func (hs *hooksMixin) processTxPipelineHook(ctx context.Context, cmds []Cmder) error {
return hs.current.txPipeline(ctx, cmds)
}
//------------------------------------------------------------------------------
type baseClient struct {
opt *Options
connPool pool.Pooler
onClose func() error // hook called when client is closed
}
func (c *baseClient) clone() *baseClient {
clone := *c
return &clone
}
func (c *baseClient) withTimeout(timeout time.Duration) *baseClient {
opt := c.opt.clone()
opt.ReadTimeout = timeout
opt.WriteTimeout = timeout
clone := c.clone()
clone.opt = opt
return clone
}
func (c *baseClient) String() string {
return fmt.Sprintf("Redis<%s db:%d>", c.getAddr(), c.opt.DB)
}
func (c *baseClient) newConn(ctx context.Context) (*pool.Conn, error) {
cn, err := c.connPool.NewConn(ctx)
if err != nil {
return nil, err
}
err = c.initConn(ctx, cn)
if err != nil {
_ = c.connPool.CloseConn(cn)
return nil, err
}
return cn, nil
}
func (c *baseClient) getConn(ctx context.Context) (*pool.Conn, error) {
if c.opt.Limiter != nil {
err := c.opt.Limiter.Allow()
if err != nil {
return nil, err
}
}
cn, err := c._getConn(ctx)
if err != nil {
if c.opt.Limiter != nil {
c.opt.Limiter.ReportResult(err)
}
return nil, err
}
return cn, nil
}
func (c *baseClient) _getConn(ctx context.Context) (*pool.Conn, error) {
cn, err := c.connPool.Get(ctx)
if err != nil {
return nil, err
}
if cn.Inited {
return cn, nil
}
if err := c.initConn(ctx, cn); err != nil {
c.connPool.Remove(ctx, cn, err)
if err := errors.Unwrap(err); err != nil {
return nil, err
}
return nil, err
}
return cn, nil
}
func (c *baseClient) initConn(ctx context.Context, cn *pool.Conn) error {
if cn.Inited {
return nil
}
cn.Inited = true
username, password := c.opt.Username, c.opt.Password
if c.opt.CredentialsProvider != nil {
username, password = c.opt.CredentialsProvider()
}
connPool := pool.NewSingleConnPool(c.connPool, cn)
conn := newConn(c.opt, connPool)
var auth bool
protocol := c.opt.Protocol
// By default, use RESP3 in current version.
if protocol < 2 {
protocol = 3
}
// for redis-server versions that do not support the HELLO command,
// RESP2 will continue to be used.
if err := conn.Hello(ctx, protocol, username, password, "").Err(); err == nil {
auth = true
} else if !isRedisError(err) {
// When the server responds with the RESP protocol and the result is not a normal
// execution result of the HELLO command, we consider it to be an indication that
// the server does not support the HELLO command.
// The server may be a redis-server that does not support the HELLO command,
// or it could be DragonflyDB or a third-party redis-proxy. They all respond
// with different error string results for unsupported commands, making it
// difficult to rely on error strings to determine all results.
return err
}
_, err := conn.Pipelined(ctx, func(pipe Pipeliner) error {
if !auth && password != "" {
if username != "" {
pipe.AuthACL(ctx, username, password)
} else {
pipe.Auth(ctx, password)
}
}
if c.opt.DB > 0 {
pipe.Select(ctx, c.opt.DB)
}
if c.opt.readOnly {
pipe.ReadOnly(ctx)
}
if c.opt.ClientName != "" {
pipe.ClientSetName(ctx, c.opt.ClientName)
}
return nil
})
if err != nil {
return err
}
if c.opt.OnConnect != nil {
return c.opt.OnConnect(ctx, conn)
}
return nil
}
func (c *baseClient) releaseConn(ctx context.Context, cn *pool.Conn, err error) {
if c.opt.Limiter != nil {
c.opt.Limiter.ReportResult(err)
}
if isBadConn(err, false, c.opt.Addr) {
c.connPool.Remove(ctx, cn, err)
} else {
c.connPool.Put(ctx, cn)
}
}
func (c *baseClient) withConn(
ctx context.Context, fn func(context.Context, *pool.Conn) error,
) error {
cn, err := c.getConn(ctx)
if err != nil {
return err
}
var fnErr error
defer func() {
c.releaseConn(ctx, cn, fnErr)
}()
fnErr = fn(ctx, cn)
return fnErr
}
func (c *baseClient) dial(ctx context.Context, network, addr string) (net.Conn, error) {
return c.opt.Dialer(ctx, network, addr)
}
func (c *baseClient) process(ctx context.Context, cmd Cmder) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
attempt := attempt
retry, err := c._process(ctx, cmd, attempt)
if err == nil || !retry {
return err
}
lastErr = err
}
return lastErr
}
func (c *baseClient) _process(ctx context.Context, cmd Cmder, attempt int) (bool, error) {
if attempt > 0 {
if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
return false, err
}
}
retryTimeout := uint32(0)
if err := c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
if err := cn.WithWriter(c.context(ctx), c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmd(wr, cmd)
}); err != nil {
atomic.StoreUint32(&retryTimeout, 1)
return err
}
if err := cn.WithReader(c.context(ctx), c.cmdTimeout(cmd), cmd.readReply); err != nil {
if cmd.readTimeout() == nil {
atomic.StoreUint32(&retryTimeout, 1)
} else {
atomic.StoreUint32(&retryTimeout, 0)
}
return err
}
return nil
}); err != nil {
retry := shouldRetry(err, atomic.LoadUint32(&retryTimeout) == 1)
return retry, err
}
return false, nil
}
func (c *baseClient) retryBackoff(attempt int) time.Duration {
return internal.RetryBackoff(attempt, c.opt.MinRetryBackoff, c.opt.MaxRetryBackoff)
}
func (c *baseClient) cmdTimeout(cmd Cmder) time.Duration {
if timeout := cmd.readTimeout(); timeout != nil {
t := *timeout
if t == 0 {
return 0
}
return t + 10*time.Second
}
return c.opt.ReadTimeout
}
// Close closes the client, releasing any open resources.
//
// It is rare to Close a Client, as the Client is meant to be
// long-lived and shared between many goroutines.
func (c *baseClient) Close() error {
var firstErr error
if c.onClose != nil {
if err := c.onClose(); err != nil {
firstErr = err
}
}
if err := c.connPool.Close(); err != nil && firstErr == nil {
firstErr = err
}
return firstErr
}
func (c *baseClient) getAddr() string {
return c.opt.Addr
}
func (c *baseClient) processPipeline(ctx context.Context, cmds []Cmder) error {
if err := c.generalProcessPipeline(ctx, cmds, c.pipelineProcessCmds); err != nil {
return err
}
return cmdsFirstErr(cmds)
}
func (c *baseClient) processTxPipeline(ctx context.Context, cmds []Cmder) error {
if err := c.generalProcessPipeline(ctx, cmds, c.txPipelineProcessCmds); err != nil {
return err
}
return cmdsFirstErr(cmds)
}
type pipelineProcessor func(context.Context, *pool.Conn, []Cmder) (bool, error)
func (c *baseClient) generalProcessPipeline(
ctx context.Context, cmds []Cmder, p pipelineProcessor,
) error {
var lastErr error
for attempt := 0; attempt <= c.opt.MaxRetries; attempt++ {
if attempt > 0 {
if err := internal.Sleep(ctx, c.retryBackoff(attempt)); err != nil {
setCmdsErr(cmds, err)
return err
}
}
// Enable retries by default to retry dial errors returned by withConn.
canRetry := true
lastErr = c.withConn(ctx, func(ctx context.Context, cn *pool.Conn) error {
var err error
canRetry, err = p(ctx, cn, cmds)
return err
})
if lastErr == nil || !canRetry || !shouldRetry(lastErr, true) {
return lastErr
}
}
return lastErr
}
func (c *baseClient) pipelineProcessCmds(
ctx context.Context, cn *pool.Conn, cmds []Cmder,
) (bool, error) {
if err := cn.WithWriter(c.context(ctx), c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
}); err != nil {
setCmdsErr(cmds, err)
return true, err
}
if err := cn.WithReader(c.context(ctx), c.opt.ReadTimeout, func(rd *proto.Reader) error {
return pipelineReadCmds(rd, cmds)
}); err != nil {
return true, err
}
return false, nil
}
func pipelineReadCmds(rd *proto.Reader, cmds []Cmder) error {
for i, cmd := range cmds {
err := cmd.readReply(rd)
cmd.SetErr(err)
if err != nil && !isRedisError(err) {
setCmdsErr(cmds[i+1:], err)
return err
}
}
// Retry errors like "LOADING redis is loading the dataset in memory".
return cmds[0].Err()
}
func (c *baseClient) txPipelineProcessCmds(
ctx context.Context, cn *pool.Conn, cmds []Cmder,
) (bool, error) {
if err := cn.WithWriter(c.context(ctx), c.opt.WriteTimeout, func(wr *proto.Writer) error {
return writeCmds(wr, cmds)
}); err != nil {
setCmdsErr(cmds, err)
return true, err
}
if err := cn.WithReader(c.context(ctx), c.opt.ReadTimeout, func(rd *proto.Reader) error {
statusCmd := cmds[0].(*StatusCmd)
// Trim multi and exec.
trimmedCmds := cmds[1 : len(cmds)-1]
if err := txPipelineReadQueued(rd, statusCmd, trimmedCmds); err != nil {
setCmdsErr(cmds, err)
return err
}
return pipelineReadCmds(rd, trimmedCmds)
}); err != nil {
return false, err
}
return false, nil
}
func txPipelineReadQueued(rd *proto.Reader, statusCmd *StatusCmd, cmds []Cmder) error {
// Parse +OK.
if err := statusCmd.readReply(rd); err != nil {
return err
}
// Parse +QUEUED.
for range cmds {
if err := statusCmd.readReply(rd); err != nil && !isRedisError(err) {
return err
}
}
// Parse number of replies.
line, err := rd.ReadLine()
if err != nil {
if err == Nil {
err = TxFailedErr
}
return err
}
if line[0] != proto.RespArray {
return fmt.Errorf("redis: expected '*', but got line %q", line)
}
return nil
}
func (c *baseClient) context(ctx context.Context) context.Context {
if c.opt.ContextTimeoutEnabled {
return ctx
}
return context.Background()
}
//------------------------------------------------------------------------------
// Client is a Redis client representing a pool of zero or more underlying connections.
// It's safe for concurrent use by multiple goroutines.
//
// Client creates and frees connections automatically; it also maintains a free pool
// of idle connections. You can control the pool size with Config.PoolSize option.
type Client struct {
*baseClient
cmdable
hooksMixin
}
// NewClient returns a client to the Redis Server specified by Options.
func NewClient(opt *Options) *Client {
opt.init()
c := Client{
baseClient: &baseClient{
opt: opt,
},
}
c.init()
c.connPool = newConnPool(opt, c.dialHook)
return &c
}
func (c *Client) init() {
c.cmdable = c.Process
c.initHooks(hooks{
dial: c.baseClient.dial,
process: c.baseClient.process,
pipeline: c.baseClient.processPipeline,
txPipeline: c.baseClient.processTxPipeline,
})
}
func (c *Client) WithTimeout(timeout time.Duration) *Client {
clone := *c
clone.baseClient = c.baseClient.withTimeout(timeout)
clone.init()
return &clone
}
func (c *Client) Conn() *Conn {
return newConn(c.opt, pool.NewStickyConnPool(c.connPool))
}
// Do create a Cmd from the args and processes the cmd.
func (c *Client) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
return cmd
}
func (c *Client) Process(ctx context.Context, cmd Cmder) error {
err := c.processHook(ctx, cmd)
cmd.SetErr(err)
return err
}
// Options returns read-only Options that were used to create the client.
func (c *Client) Options() *Options {
return c.opt
}
type PoolStats pool.Stats
// PoolStats returns connection pool stats.
func (c *Client) PoolStats() *PoolStats {
stats := c.connPool.Stats()
return (*PoolStats)(stats)
}
func (c *Client) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Client) Pipeline() Pipeliner {
pipe := Pipeline{
exec: pipelineExecer(c.processPipelineHook),
}
pipe.init()
return &pipe
}
func (c *Client) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
func (c *Client) TxPipeline() Pipeliner {
pipe := Pipeline{
exec: func(ctx context.Context, cmds []Cmder) error {
cmds = wrapMultiExec(ctx, cmds)
return c.processTxPipelineHook(ctx, cmds)
},
}
pipe.init()
return &pipe
}
func (c *Client) pubSub() *PubSub {
pubsub := &PubSub{
opt: c.opt,
newConn: func(ctx context.Context, channels []string) (*pool.Conn, error) {
return c.newConn(ctx)
},
closeConn: c.connPool.CloseConn,
}
pubsub.init()
return pubsub
}
// Subscribe subscribes the client to the specified channels.
// Channels can be omitted to create empty subscription.
// Note that this method does not wait on a response from Redis, so the
// subscription may not be active immediately. To force the connection to wait,
// you may call the Receive() method on the returned *PubSub like so:
//
// sub := client.Subscribe(queryResp)
// iface, err := sub.Receive()
// if err != nil {
// // handle error
// }
//
// // Should be *Subscription, but others are possible if other actions have been
// // taken on sub since it was created.
// switch iface.(type) {
// case *Subscription:
// // subscribe succeeded
// case *Message:
// // received first message
// case *Pong:
// // pong received
// default:
// // handle error
// }
//
// ch := sub.Channel()
func (c *Client) Subscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.Subscribe(ctx, channels...)
}
return pubsub
}
// PSubscribe subscribes the client to the given patterns.
// Patterns can be omitted to create empty subscription.
func (c *Client) PSubscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.PSubscribe(ctx, channels...)
}
return pubsub
}
// SSubscribe Subscribes the client to the specified shard channels.
// Channels can be omitted to create empty subscription.
func (c *Client) SSubscribe(ctx context.Context, channels ...string) *PubSub {
pubsub := c.pubSub()
if len(channels) > 0 {
_ = pubsub.SSubscribe(ctx, channels...)
}
return pubsub
}
//------------------------------------------------------------------------------
// Conn represents a single Redis connection rather than a pool of connections.
// Prefer running commands from Client unless there is a specific need
// for a continuous single Redis connection.
type Conn struct {
baseClient
cmdable
statefulCmdable
hooksMixin
}
func newConn(opt *Options, connPool pool.Pooler) *Conn {
c := Conn{
baseClient: baseClient{
opt: opt,
connPool: connPool,
},
}
c.cmdable = c.Process
c.statefulCmdable = c.Process
c.initHooks(hooks{
dial: c.baseClient.dial,
process: c.baseClient.process,
pipeline: c.baseClient.processPipeline,
txPipeline: c.baseClient.processTxPipeline,
})
return &c
}
func (c *Conn) Process(ctx context.Context, cmd Cmder) error {
err := c.processHook(ctx, cmd)
cmd.SetErr(err)
return err
}
func (c *Conn) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.Pipeline().Pipelined(ctx, fn)
}
func (c *Conn) Pipeline() Pipeliner {
pipe := Pipeline{
exec: c.processPipelineHook,
}
pipe.init()
return &pipe
}
func (c *Conn) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
// TxPipeline acts like Pipeline, but wraps queued commands with MULTI/EXEC.
func (c *Conn) TxPipeline() Pipeliner {
pipe := Pipeline{
exec: func(ctx context.Context, cmds []Cmder) error {
cmds = wrapMultiExec(ctx, cmds)
return c.processTxPipelineHook(ctx, cmds)
},
}
pipe.init()
return &pipe
}

161
vendor/github.com/redis/go-redis/v9/redis_gears.go generated vendored Normal file
View File

@ -0,0 +1,161 @@
package redis
import (
"context"
"fmt"
"strings"
)
type gearsCmdable interface {
TFunctionLoad(ctx context.Context, lib string) *StatusCmd
TFunctionLoadArgs(ctx context.Context, lib string, options *TFunctionLoadOptions) *StatusCmd
TFunctionDelete(ctx context.Context, libName string) *StatusCmd
TFunctionList(ctx context.Context) *MapStringInterfaceSliceCmd
TFunctionListArgs(ctx context.Context, options *TFunctionListOptions) *MapStringInterfaceSliceCmd
TFCall(ctx context.Context, libName string, funcName string, numKeys int) *Cmd
TFCallArgs(ctx context.Context, libName string, funcName string, numKeys int, options *TFCallOptions) *Cmd
TFCallASYNC(ctx context.Context, libName string, funcName string, numKeys int) *Cmd
TFCallASYNCArgs(ctx context.Context, libName string, funcName string, numKeys int, options *TFCallOptions) *Cmd
}
type TFunctionLoadOptions struct {
Replace bool
Config string
}
type TFunctionListOptions struct {
Withcode bool
Verbose int
Library string
}
type TFCallOptions struct {
Keys []string
Arguments []string
}
// TFunctionLoad - load a new JavaScript library into Redis.
// For more information - https://redis.io/commands/tfunction-load/
func (c cmdable) TFunctionLoad(ctx context.Context, lib string) *StatusCmd {
args := []interface{}{"TFUNCTION", "LOAD", lib}
cmd := NewStatusCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) TFunctionLoadArgs(ctx context.Context, lib string, options *TFunctionLoadOptions) *StatusCmd {
args := []interface{}{"TFUNCTION", "LOAD"}
if options != nil {
if options.Replace {
args = append(args, "REPLACE")
}
if options.Config != "" {
args = append(args, "CONFIG", options.Config)
}
}
args = append(args, lib)
cmd := NewStatusCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// TFunctionDelete - delete a JavaScript library from Redis.
// For more information - https://redis.io/commands/tfunction-delete/
func (c cmdable) TFunctionDelete(ctx context.Context, libName string) *StatusCmd {
args := []interface{}{"TFUNCTION", "DELETE", libName}
cmd := NewStatusCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// TFunctionList - list the functions with additional information about each function.
// For more information - https://redis.io/commands/tfunction-list/
func (c cmdable) TFunctionList(ctx context.Context) *MapStringInterfaceSliceCmd {
args := []interface{}{"TFUNCTION", "LIST"}
cmd := NewMapStringInterfaceSliceCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) TFunctionListArgs(ctx context.Context, options *TFunctionListOptions) *MapStringInterfaceSliceCmd {
args := []interface{}{"TFUNCTION", "LIST"}
if options != nil {
if options.Withcode {
args = append(args, "WITHCODE")
}
if options.Verbose != 0 {
v := strings.Repeat("v", options.Verbose)
args = append(args, v)
}
if options.Library != "" {
args = append(args, "LIBRARY", options.Library)
}
}
cmd := NewMapStringInterfaceSliceCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// TFCall - invoke a function.
// For more information - https://redis.io/commands/tfcall/
func (c cmdable) TFCall(ctx context.Context, libName string, funcName string, numKeys int) *Cmd {
lf := libName + "." + funcName
args := []interface{}{"TFCALL", lf, numKeys}
cmd := NewCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) TFCallArgs(ctx context.Context, libName string, funcName string, numKeys int, options *TFCallOptions) *Cmd {
lf := libName + "." + funcName
args := []interface{}{"TFCALL", lf, numKeys}
if options != nil {
if options.Keys != nil {
for _, key := range options.Keys {
args = append(args, key)
}
}
if options.Arguments != nil {
for _, key := range options.Arguments {
args = append(args, key)
}
}
}
cmd := NewCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
// TFCallASYNC - invoke an asynchronous JavaScript function (coroutine).
// For more information - https://redis.io/commands/TFCallASYNC/
func (c cmdable) TFCallASYNC(ctx context.Context, libName string, funcName string, numKeys int) *Cmd {
lf := fmt.Sprintf("%s.%s", libName, funcName)
args := []interface{}{"TFCALLASYNC", lf, numKeys}
cmd := NewCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}
func (c cmdable) TFCallASYNCArgs(ctx context.Context, libName string, funcName string, numKeys int, options *TFCallOptions) *Cmd {
lf := fmt.Sprintf("%s.%s", libName, funcName)
args := []interface{}{"TFCALLASYNC", lf, numKeys}
if options != nil {
if options.Keys != nil {
for _, key := range options.Keys {
args = append(args, key)
}
}
if options.Arguments != nil {
for _, key := range options.Arguments {
args = append(args, key)
}
}
}
cmd := NewCmd(ctx, args...)
_ = c(ctx, cmd)
return cmd
}

View File

@ -82,17 +82,17 @@ func NewBoolSliceResult(val []bool, err error) *BoolSliceCmd {
return &cmd
}
// NewStringStringMapResult returns a StringStringMapCmd initialised with val and err for testing.
func NewStringStringMapResult(val map[string]string, err error) *StringStringMapCmd {
var cmd StringStringMapCmd
// NewMapStringStringResult returns a MapStringStringCmd initialised with val and err for testing.
func NewMapStringStringResult(val map[string]string, err error) *MapStringStringCmd {
var cmd MapStringStringCmd
cmd.val = val
cmd.SetErr(err)
return &cmd
}
// NewStringIntMapCmdResult returns a StringIntMapCmd initialised with val and err for testing.
func NewStringIntMapCmdResult(val map[string]int64, err error) *StringIntMapCmd {
var cmd StringIntMapCmd
// NewMapStringIntCmdResult returns a MapStringIntCmd initialised with val and err for testing.
func NewMapStringIntCmdResult(val map[string]int64, err error) *MapStringIntCmd {
var cmd MapStringIntCmd
cmd.val = val
cmd.SetErr(err)
return &cmd
@ -114,7 +114,7 @@ func NewZSliceCmdResult(val []Z, err error) *ZSliceCmd {
return &cmd
}
// NewZWithKeyCmdResult returns a NewZWithKeyCmd initialised with val and err for testing.
// NewZWithKeyCmdResult returns a ZWithKeyCmd initialised with val and err for testing.
func NewZWithKeyCmdResult(val *ZWithKey, err error) *ZWithKeyCmd {
var cmd ZWithKeyCmd
cmd.val = val
@ -178,3 +178,11 @@ func NewXStreamSliceCmdResult(val []XStream, err error) *XStreamSliceCmd {
cmd.SetErr(err)
return &cmd
}
// NewXPendingResult returns a XPendingCmd initialised with val and err for testing.
func NewXPendingResult(val *XPending, err error) *XPendingCmd {
var cmd XPendingCmd
cmd.val = val
cmd.SetErr(err)
return &cmd
}

View File

@ -12,12 +12,12 @@ import (
"time"
"github.com/cespare/xxhash/v2"
rendezvous "github.com/dgryski/go-rendezvous" //nolint
"github.com/dgryski/go-rendezvous" //nolint
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/hashtag"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/rand"
"github.com/redis/go-redis/v9/internal"
"github.com/redis/go-redis/v9/internal/hashtag"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/rand"
)
var errRingShardsDown = errors.New("redis: all ring shards are down")
@ -48,8 +48,11 @@ type RingOptions struct {
// Map of name => host:port addresses of ring shards.
Addrs map[string]string
// NewClient creates a shard client with provided name and options.
NewClient func(name string, opt *Options) *Client
// NewClient creates a shard client with provided options.
NewClient func(opt *Options) *Client
// ClientName will execute the `CLIENT SETNAME ClientName` command for each conn.
ClientName string
// Frequency of PING commands sent to check shards availability.
// Shard is considered down after 3 subsequent failed checks.
@ -67,6 +70,7 @@ type RingOptions struct {
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(ctx context.Context, cn *Conn) error
Protocol int
Username string
Password string
DB int
@ -83,11 +87,11 @@ type RingOptions struct {
PoolFIFO bool
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
MinIdleConns int
MaxIdleConns int
ConnMaxIdleTime time.Duration
ConnMaxLifetime time.Duration
TLSConfig *tls.Config
Limiter Limiter
@ -95,7 +99,7 @@ type RingOptions struct {
func (opt *RingOptions) init() {
if opt.NewClient == nil {
opt.NewClient = func(name string, opt *Options) *Client {
opt.NewClient = func(opt *Options) *Client {
return NewClient(opt)
}
}
@ -129,9 +133,11 @@ func (opt *RingOptions) init() {
func (opt *RingOptions) clientOptions() *Options {
return &Options{
ClientName: opt.ClientName,
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
Protocol: opt.Protocol,
Username: opt.Username,
Password: opt.Password,
DB: opt.DB,
@ -144,11 +150,11 @@ func (opt *RingOptions) clientOptions() *Options {
PoolFIFO: opt.PoolFIFO,
PoolSize: opt.PoolSize,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxIdleConns: opt.MaxIdleConns,
ConnMaxIdleTime: opt.ConnMaxIdleTime,
ConnMaxLifetime: opt.ConnMaxLifetime,
TLSConfig: opt.TLSConfig,
Limiter: opt.Limiter,
@ -160,14 +166,16 @@ func (opt *RingOptions) clientOptions() *Options {
type ringShard struct {
Client *Client
down int32
addr string
}
func newRingShard(opt *RingOptions, name, addr string) *ringShard {
func newRingShard(opt *RingOptions, addr string) *ringShard {
clopt := opt.clientOptions()
clopt.Addr = addr
return &ringShard{
Client: opt.NewClient(name, clopt),
Client: opt.NewClient(clopt),
addr: addr,
}
}
@ -208,161 +216,238 @@ func (shard *ringShard) Vote(up bool) bool {
//------------------------------------------------------------------------------
type ringShards struct {
type ringSharding struct {
opt *RingOptions
mu sync.RWMutex
hash ConsistentHash
shards map[string]*ringShard // read only
list []*ringShard // read only
numShard int
shards *ringShards
closed bool
hash ConsistentHash
numShard int
onNewNode []func(rdb *Client)
// ensures exclusive access to SetAddrs so there is no need
// to hold mu for the duration of potentially long shard creation
setAddrsMu sync.Mutex
}
func newRingShards(opt *RingOptions) *ringShards {
shards := make(map[string]*ringShard, len(opt.Addrs))
list := make([]*ringShard, 0, len(shards))
for name, addr := range opt.Addrs {
shard := newRingShard(opt, name, addr)
shards[name] = shard
list = append(list, shard)
type ringShards struct {
m map[string]*ringShard
list []*ringShard
}
c := &ringShards{
func newRingSharding(opt *RingOptions) *ringSharding {
c := &ringSharding{
opt: opt,
shards: shards,
list: list,
}
c.rebalance()
c.SetAddrs(opt.Addrs)
return c
}
func (c *ringShards) List() []*ringShard {
func (c *ringSharding) OnNewNode(fn func(rdb *Client)) {
c.mu.Lock()
c.onNewNode = append(c.onNewNode, fn)
c.mu.Unlock()
}
// SetAddrs replaces the shards in use, such that you can increase and
// decrease number of shards, that you use. It will reuse shards that
// existed before and close the ones that will not be used anymore.
func (c *ringSharding) SetAddrs(addrs map[string]string) {
c.setAddrsMu.Lock()
defer c.setAddrsMu.Unlock()
cleanup := func(shards map[string]*ringShard) {
for addr, shard := range shards {
if err := shard.Client.Close(); err != nil {
internal.Logger.Printf(context.Background(), "shard.Close %s failed: %s", addr, err)
}
}
}
c.mu.RLock()
if c.closed {
c.mu.RUnlock()
return
}
existing := c.shards
c.mu.RUnlock()
shards, created, unused := c.newRingShards(addrs, existing)
c.mu.Lock()
if c.closed {
cleanup(created)
c.mu.Unlock()
return
}
c.shards = shards
c.rebalanceLocked()
c.mu.Unlock()
cleanup(unused)
}
func (c *ringSharding) newRingShards(
addrs map[string]string, existing *ringShards,
) (shards *ringShards, created, unused map[string]*ringShard) {
shards = &ringShards{m: make(map[string]*ringShard, len(addrs))}
created = make(map[string]*ringShard) // indexed by addr
unused = make(map[string]*ringShard) // indexed by addr
if existing != nil {
for _, shard := range existing.list {
unused[shard.addr] = shard
}
}
for name, addr := range addrs {
if shard, ok := unused[addr]; ok {
shards.m[name] = shard
delete(unused, addr)
} else {
shard := newRingShard(c.opt, addr)
shards.m[name] = shard
created[addr] = shard
for _, fn := range c.onNewNode {
fn(shard.Client)
}
}
}
for _, shard := range shards.m {
shards.list = append(shards.list, shard)
}
return
}
func (c *ringSharding) List() []*ringShard {
var list []*ringShard
c.mu.RLock()
if !c.closed {
list = c.list
list = c.shards.list
}
c.mu.RUnlock()
return list
}
func (c *ringShards) Hash(key string) string {
func (c *ringSharding) Hash(key string) string {
key = hashtag.Key(key)
var hash string
c.mu.RLock()
defer c.mu.RUnlock()
if c.numShard > 0 {
hash = c.hash.Get(key)
}
c.mu.RUnlock()
return hash
}
func (c *ringShards) GetByKey(key string) (*ringShard, error) {
func (c *ringSharding) GetByKey(key string) (*ringShard, error) {
key = hashtag.Key(key)
c.mu.RLock()
defer c.mu.RUnlock()
if c.closed {
c.mu.RUnlock()
return nil, pool.ErrClosed
}
if c.numShard == 0 {
c.mu.RUnlock()
return nil, errRingShardsDown
}
hash := c.hash.Get(key)
if hash == "" {
c.mu.RUnlock()
shardName := c.hash.Get(key)
if shardName == "" {
return nil, errRingShardsDown
}
shard := c.shards[hash]
c.mu.RUnlock()
return shard, nil
return c.shards.m[shardName], nil
}
func (c *ringShards) GetByName(shardName string) (*ringShard, error) {
func (c *ringSharding) GetByName(shardName string) (*ringShard, error) {
if shardName == "" {
return c.Random()
}
c.mu.RLock()
shard := c.shards[shardName]
c.mu.RUnlock()
return shard, nil
defer c.mu.RUnlock()
return c.shards.m[shardName], nil
}
func (c *ringShards) Random() (*ringShard, error) {
func (c *ringSharding) Random() (*ringShard, error) {
return c.GetByKey(strconv.Itoa(rand.Int()))
}
// heartbeat monitors state of each shard in the ring.
func (c *ringShards) Heartbeat(frequency time.Duration) {
// Heartbeat monitors state of each shard in the ring.
func (c *ringSharding) Heartbeat(ctx context.Context, frequency time.Duration) {
ticker := time.NewTicker(frequency)
defer ticker.Stop()
ctx := context.Background()
for range ticker.C {
for {
select {
case <-ticker.C:
var rebalance bool
for _, shard := range c.List() {
err := shard.Client.Ping(ctx).Err()
isUp := err == nil || err == pool.ErrPoolTimeout
if shard.Vote(isUp) {
internal.Logger.Printf(context.Background(), "ring shard state changed: %s", shard)
internal.Logger.Printf(ctx, "ring shard state changed: %s", shard)
rebalance = true
}
}
if rebalance {
c.rebalance()
c.mu.Lock()
c.rebalanceLocked()
c.mu.Unlock()
}
case <-ctx.Done():
return
}
}
}
// rebalance removes dead shards from the Ring.
func (c *ringShards) rebalance() {
c.mu.RLock()
shards := c.shards
c.mu.RUnlock()
// rebalanceLocked removes dead shards from the Ring.
// Requires c.mu locked.
func (c *ringSharding) rebalanceLocked() {
if c.closed {
return
}
if c.shards == nil {
return
}
liveShards := make([]string, 0, len(shards))
liveShards := make([]string, 0, len(c.shards.m))
for name, shard := range shards {
for name, shard := range c.shards.m {
if shard.IsUp() {
liveShards = append(liveShards, name)
}
}
hash := c.opt.NewConsistentHash(liveShards)
c.mu.Lock()
c.hash = hash
c.hash = c.opt.NewConsistentHash(liveShards)
c.numShard = len(liveShards)
c.mu.Unlock()
}
func (c *ringShards) Len() int {
func (c *ringSharding) Len() int {
c.mu.RLock()
l := c.numShard
c.mu.RUnlock()
return l
defer c.mu.RUnlock()
return c.numShard
}
func (c *ringShards) Close() error {
func (c *ringSharding) Close() error {
c.mu.Lock()
defer c.mu.Unlock()
@ -372,26 +457,22 @@ func (c *ringShards) Close() error {
c.closed = true
var firstErr error
for _, shard := range c.shards {
for _, shard := range c.shards.list {
if err := shard.Client.Close(); err != nil && firstErr == nil {
firstErr = err
}
}
c.hash = nil
c.shards = nil
c.list = nil
c.numShard = 0
return firstErr
}
//------------------------------------------------------------------------------
type ring struct {
opt *RingOptions
shards *ringShards
cmdsInfoCache *cmdsInfoCache //nolint:structcheck
}
// Ring is a Redis client that uses consistent hashing to distribute
// keys across multiple Redis servers (shards). It's safe for
// concurrent use by multiple goroutines.
@ -407,47 +488,49 @@ type ring struct {
// and can tolerate losing data when one of the servers dies.
// Otherwise you should use Redis Cluster.
type Ring struct {
*ring
cmdable
hooks
ctx context.Context
hooksMixin
opt *RingOptions
sharding *ringSharding
cmdsInfoCache *cmdsInfoCache
heartbeatCancelFn context.CancelFunc
}
func NewRing(opt *RingOptions) *Ring {
opt.init()
hbCtx, hbCancel := context.WithCancel(context.Background())
ring := Ring{
ring: &ring{
opt: opt,
shards: newRingShards(opt),
},
ctx: context.Background(),
sharding: newRingSharding(opt),
heartbeatCancelFn: hbCancel,
}
ring.cmdsInfoCache = newCmdsInfoCache(ring.cmdsInfo)
ring.cmdable = ring.Process
go ring.shards.Heartbeat(opt.HeartbeatFrequency)
ring.initHooks(hooks{
process: ring.process,
pipeline: func(ctx context.Context, cmds []Cmder) error {
return ring.generalProcessPipeline(ctx, cmds, false)
},
txPipeline: func(ctx context.Context, cmds []Cmder) error {
return ring.generalProcessPipeline(ctx, cmds, true)
},
})
go ring.sharding.Heartbeat(hbCtx, opt.HeartbeatFrequency)
return &ring
}
func (c *Ring) Context() context.Context {
return c.ctx
func (c *Ring) SetAddrs(addrs map[string]string) {
c.sharding.SetAddrs(addrs)
}
func (c *Ring) WithContext(ctx context.Context) *Ring {
if ctx == nil {
panic("nil context")
}
clone := *c
clone.cmdable = clone.Process
clone.hooks.lock()
clone.ctx = ctx
return &clone
}
// Do creates a Cmd from the args and processes the cmd.
// Do create a Cmd from the args and processes the cmd.
func (c *Ring) Do(ctx context.Context, args ...interface{}) *Cmd {
cmd := NewCmd(ctx, args...)
_ = c.Process(ctx, cmd)
@ -455,7 +538,9 @@ func (c *Ring) Do(ctx context.Context, args ...interface{}) *Cmd {
}
func (c *Ring) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.process)
err := c.processHook(ctx, cmd)
cmd.SetErr(err)
return err
}
// Options returns read-only Options that were used to create the client.
@ -469,7 +554,7 @@ func (c *Ring) retryBackoff(attempt int) time.Duration {
// PoolStats returns accumulated connection pool stats.
func (c *Ring) PoolStats() *PoolStats {
shards := c.shards.List()
shards := c.sharding.List()
var acc PoolStats
for _, shard := range shards {
s := shard.Client.connPool.Stats()
@ -484,7 +569,7 @@ func (c *Ring) PoolStats() *PoolStats {
// Len returns the current number of shards in the ring.
func (c *Ring) Len() int {
return c.shards.Len()
return c.sharding.Len()
}
// Subscribe subscribes the client to the specified channels.
@ -493,7 +578,7 @@ func (c *Ring) Subscribe(ctx context.Context, channels ...string) *PubSub {
panic("at least one channel is required")
}
shard, err := c.shards.GetByKey(channels[0])
shard, err := c.sharding.GetByKey(channels[0])
if err != nil {
// TODO: return PubSub with sticky error
panic(err)
@ -507,7 +592,7 @@ func (c *Ring) PSubscribe(ctx context.Context, channels ...string) *PubSub {
panic("at least one channel is required")
}
shard, err := c.shards.GetByKey(channels[0])
shard, err := c.sharding.GetByKey(channels[0])
if err != nil {
// TODO: return PubSub with sticky error
panic(err)
@ -515,13 +600,30 @@ func (c *Ring) PSubscribe(ctx context.Context, channels ...string) *PubSub {
return shard.Client.PSubscribe(ctx, channels...)
}
// SSubscribe Subscribes the client to the specified shard channels.
func (c *Ring) SSubscribe(ctx context.Context, channels ...string) *PubSub {
if len(channels) == 0 {
panic("at least one channel is required")
}
shard, err := c.sharding.GetByKey(channels[0])
if err != nil {
// TODO: return PubSub with sticky error
panic(err)
}
return shard.Client.SSubscribe(ctx, channels...)
}
func (c *Ring) OnNewNode(fn func(rdb *Client)) {
c.sharding.OnNewNode(fn)
}
// ForEachShard concurrently calls the fn on each live shard in the ring.
// It returns the first error if any.
func (c *Ring) ForEachShard(
ctx context.Context,
fn func(ctx context.Context, client *Client) error,
) error {
shards := c.shards.List()
shards := c.sharding.List()
var wg sync.WaitGroup
errCh := make(chan error, 1)
for _, shard := range shards {
@ -552,7 +654,7 @@ func (c *Ring) ForEachShard(
}
func (c *Ring) cmdsInfo(ctx context.Context) (map[string]*CommandInfo, error) {
shards := c.shards.List()
shards := c.sharding.List()
var firstErr error
for _, shard := range shards {
cmdsInfo, err := shard.Client.Command(ctx).Result()
@ -585,10 +687,10 @@ func (c *Ring) cmdShard(ctx context.Context, cmd Cmder) (*ringShard, error) {
cmdInfo := c.cmdInfo(ctx, cmd.Name())
pos := cmdFirstKeyPos(cmd, cmdInfo)
if pos == 0 {
return c.shards.Random()
return c.sharding.Random()
}
firstKey := cmd.stringArg(pos)
return c.shards.GetByKey(firstKey)
return c.sharding.GetByKey(firstKey)
}
func (c *Ring) process(ctx context.Context, cmd Cmder) error {
@ -619,47 +721,42 @@ func (c *Ring) Pipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder
func (c *Ring) Pipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processPipeline,
exec: pipelineExecer(c.processPipelineHook),
}
pipe.init()
return &pipe
}
func (c *Ring) processPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, func(ctx context.Context, cmds []Cmder) error {
return c.generalProcessPipeline(ctx, cmds, false)
})
}
func (c *Ring) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder, error) {
return c.TxPipeline().Pipelined(ctx, fn)
}
func (c *Ring) TxPipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: c.processTxPipeline,
exec: func(ctx context.Context, cmds []Cmder) error {
cmds = wrapMultiExec(ctx, cmds)
return c.processTxPipelineHook(ctx, cmds)
},
}
pipe.init()
return &pipe
}
func (c *Ring) processTxPipeline(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, func(ctx context.Context, cmds []Cmder) error {
return c.generalProcessPipeline(ctx, cmds, true)
})
}
func (c *Ring) generalProcessPipeline(
ctx context.Context, cmds []Cmder, tx bool,
) error {
if tx {
// Trim multi .. exec.
cmds = cmds[1 : len(cmds)-1]
}
cmdsMap := make(map[string][]Cmder)
for _, cmd := range cmds {
cmdInfo := c.cmdInfo(ctx, cmd.Name())
hash := cmd.stringArg(cmdFirstKeyPos(cmd, cmdInfo))
if hash != "" {
hash = c.shards.Hash(hash)
hash = c.sharding.Hash(hash)
}
cmdsMap[hash] = append(cmdsMap[hash], cmd)
}
@ -670,7 +767,19 @@ func (c *Ring) generalProcessPipeline(
go func(hash string, cmds []Cmder) {
defer wg.Done()
_ = c.processShardPipeline(ctx, hash, cmds, tx)
// TODO: retry?
shard, err := c.sharding.GetByName(hash)
if err != nil {
setCmdsErr(cmds, err)
return
}
if tx {
cmds = wrapMultiExec(ctx, cmds)
_ = shard.Client.processTxPipelineHook(ctx, cmds)
} else {
_ = shard.Client.processPipelineHook(ctx, cmds)
}
}(hash, cmds)
}
@ -678,31 +787,16 @@ func (c *Ring) generalProcessPipeline(
return cmdsFirstErr(cmds)
}
func (c *Ring) processShardPipeline(
ctx context.Context, hash string, cmds []Cmder, tx bool,
) error {
// TODO: retry?
shard, err := c.shards.GetByName(hash)
if err != nil {
setCmdsErr(cmds, err)
return err
}
if tx {
return shard.Client.processTxPipeline(ctx, cmds)
}
return shard.Client.processPipeline(ctx, cmds)
}
func (c *Ring) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
if len(keys) == 0 {
return fmt.Errorf("redis: Watch requires at least one key")
}
var shards []*ringShard
for _, key := range keys {
if key != "" {
shard, err := c.shards.GetByKey(hashtag.Key(key))
shard, err := c.sharding.GetByKey(hashtag.Key(key))
if err != nil {
return err
}
@ -732,5 +826,7 @@ func (c *Ring) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) er
// It is rare to Close a Ring, as the Ring is meant to be long-lived
// and shared between many goroutines.
func (c *Ring) Close() error {
return c.shards.Close()
c.heartbeatCancelFn()
return c.sharding.Close()
}

View File

@ -5,12 +5,13 @@ import (
"crypto/sha1"
"encoding/hex"
"io"
"strings"
)
type Scripter interface {
Eval(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
EvalSha(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
EvalRO(ctx context.Context, script string, keys []string, args ...interface{}) *Cmd
EvalShaRO(ctx context.Context, sha1 string, keys []string, args ...interface{}) *Cmd
ScriptExists(ctx context.Context, hashes ...string) *BoolSliceCmd
ScriptLoad(ctx context.Context, script string) *StringCmd
}
@ -50,16 +51,34 @@ func (s *Script) Eval(ctx context.Context, c Scripter, keys []string, args ...in
return c.Eval(ctx, s.src, keys, args...)
}
func (s *Script) EvalRO(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
return c.EvalRO(ctx, s.src, keys, args...)
}
func (s *Script) EvalSha(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
return c.EvalSha(ctx, s.hash, keys, args...)
}
func (s *Script) EvalShaRO(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
return c.EvalShaRO(ctx, s.hash, keys, args...)
}
// Run optimistically uses EVALSHA to run the script. If script does not exist
// it is retried using EVAL.
func (s *Script) Run(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
r := s.EvalSha(ctx, c, keys, args...)
if err := r.Err(); err != nil && strings.HasPrefix(err.Error(), "NOSCRIPT ") {
if HasErrorPrefix(r.Err(), "NOSCRIPT") {
return s.Eval(ctx, c, keys, args...)
}
return r
}
// RunRO optimistically uses EVALSHA_RO to run the script. If script does not exist
// it is retried using EVAL_RO.
func (s *Script) RunRO(ctx context.Context, c Scripter, keys []string, args ...interface{}) *Cmd {
r := s.EvalShaRO(ctx, c, keys, args...)
if HasErrorPrefix(r.Err(), "NOSCRIPT") {
return s.EvalRO(ctx, c, keys, args...)
}
return r
}

View File

@ -9,9 +9,9 @@ import (
"sync"
"time"
"github.com/go-redis/redis/v8/internal"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/rand"
"github.com/redis/go-redis/v9/internal"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/rand"
)
//------------------------------------------------------------------------------
@ -24,6 +24,9 @@ type FailoverOptions struct {
// A seed list of host:port addresses of sentinel nodes.
SentinelAddrs []string
// ClientName will execute the `CLIENT SETNAME ClientName` command for each conn.
ClientName string
// If specified with SentinelPassword, enables ACL-based authentication (via
// AUTH <user> <pass>).
SentinelUsername string
@ -32,25 +35,26 @@ type FailoverOptions struct {
// authentication.
SentinelPassword string
// Allows routing read-only commands to the closest master or slave node.
// Allows routing read-only commands to the closest master or replica node.
// This option only works with NewFailoverClusterClient.
RouteByLatency bool
// Allows routing read-only commands to the random master or slave node.
// Allows routing read-only commands to the random master or replica node.
// This option only works with NewFailoverClusterClient.
RouteRandomly bool
// Route all commands to slave read-only nodes.
SlaveOnly bool
// Route all commands to replica read-only nodes.
ReplicaOnly bool
// Use slaves disconnected with master when cannot get connected slaves
// Now, this option only works in RandomSlaveAddr function.
UseDisconnectedSlaves bool
// Use replicas disconnected with master when cannot get connected replicas
// Now, this option only works in RandomReplicaAddr function.
UseDisconnectedReplicas bool
// Following options are copied from Options struct.
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(ctx context.Context, cn *Conn) error
Protocol int
Username string
Password string
DB int
@ -62,16 +66,16 @@ type FailoverOptions struct {
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
ContextTimeoutEnabled bool
// PoolFIFO uses FIFO mode for each node connection pool GET/PUT (default LIFO).
PoolFIFO bool
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
MinIdleConns int
MaxIdleConns int
ConnMaxIdleTime time.Duration
ConnMaxLifetime time.Duration
TLSConfig *tls.Config
}
@ -79,11 +83,13 @@ type FailoverOptions struct {
func (opt *FailoverOptions) clientOptions() *Options {
return &Options{
Addr: "FailoverClient",
ClientName: opt.ClientName,
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
DB: opt.DB,
Protocol: opt.Protocol,
Username: opt.Username,
Password: opt.Password,
@ -94,14 +100,15 @@ func (opt *FailoverOptions) clientOptions() *Options {
DialTimeout: opt.DialTimeout,
ReadTimeout: opt.ReadTimeout,
WriteTimeout: opt.WriteTimeout,
ContextTimeoutEnabled: opt.ContextTimeoutEnabled,
PoolFIFO: opt.PoolFIFO,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
MaxIdleConns: opt.MaxIdleConns,
ConnMaxIdleTime: opt.ConnMaxIdleTime,
ConnMaxLifetime: opt.ConnMaxLifetime,
TLSConfig: opt.TLSConfig,
}
@ -110,6 +117,7 @@ func (opt *FailoverOptions) clientOptions() *Options {
func (opt *FailoverOptions) sentinelOptions(addr string) *Options {
return &Options{
Addr: addr,
ClientName: opt.ClientName,
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
@ -129,10 +137,10 @@ func (opt *FailoverOptions) sentinelOptions(addr string) *Options {
PoolFIFO: opt.PoolFIFO,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
MaxIdleConns: opt.MaxIdleConns,
ConnMaxIdleTime: opt.ConnMaxIdleTime,
ConnMaxLifetime: opt.ConnMaxLifetime,
TLSConfig: opt.TLSConfig,
}
@ -140,9 +148,12 @@ func (opt *FailoverOptions) sentinelOptions(addr string) *Options {
func (opt *FailoverOptions) clusterOptions() *ClusterOptions {
return &ClusterOptions{
ClientName: opt.ClientName,
Dialer: opt.Dialer,
OnConnect: opt.OnConnect,
Protocol: opt.Protocol,
Username: opt.Username,
Password: opt.Password,
@ -161,10 +172,10 @@ func (opt *FailoverOptions) clusterOptions() *ClusterOptions {
PoolFIFO: opt.PoolFIFO,
PoolSize: opt.PoolSize,
PoolTimeout: opt.PoolTimeout,
IdleTimeout: opt.IdleTimeout,
IdleCheckFrequency: opt.IdleCheckFrequency,
MinIdleConns: opt.MinIdleConns,
MaxConnAge: opt.MaxConnAge,
MaxIdleConns: opt.MaxIdleConns,
ConnMaxIdleTime: opt.ConnMaxIdleTime,
ConnMaxLifetime: opt.ConnMaxLifetime,
TLSConfig: opt.TLSConfig,
}
@ -194,10 +205,21 @@ func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
}
opt := failoverOpt.clientOptions()
opt.Dialer = masterSlaveDialer(failover)
opt.Dialer = masterReplicaDialer(failover)
opt.init()
connPool := newConnPool(opt)
var connPool *pool.ConnPool
rdb := &Client{
baseClient: &baseClient{
opt: opt,
},
}
rdb.init()
connPool = newConnPool(opt, rdb.dialHook)
rdb.connPool = connPool
rdb.onClose = failover.Close
failover.mu.Lock()
failover.onFailover = func(ctx context.Context, addr string) {
@ -207,25 +229,18 @@ func NewFailoverClient(failoverOpt *FailoverOptions) *Client {
}
failover.mu.Unlock()
c := Client{
baseClient: newBaseClient(opt, connPool),
ctx: context.Background(),
}
c.cmdable = c.Process
c.onClose = failover.Close
return &c
return rdb
}
func masterSlaveDialer(
func masterReplicaDialer(
failover *sentinelFailover,
) func(ctx context.Context, network, addr string) (net.Conn, error) {
return func(ctx context.Context, network, _ string) (net.Conn, error) {
var addr string
var err error
if failover.opt.SlaveOnly {
addr, err = failover.RandomSlaveAddr(ctx)
if failover.opt.ReplicaOnly {
addr, err = failover.RandomReplicaAddr(ctx)
} else {
addr, err = failover.MasterAddr(ctx)
if err == nil {
@ -255,8 +270,7 @@ func masterSlaveDialer(
// SentinelClient is a client for a Redis Sentinel.
type SentinelClient struct {
*baseClient
hooks
ctx context.Context
hooksMixin
}
func NewSentinelClient(opt *Options) *SentinelClient {
@ -264,28 +278,22 @@ func NewSentinelClient(opt *Options) *SentinelClient {
c := &SentinelClient{
baseClient: &baseClient{
opt: opt,
connPool: newConnPool(opt),
},
ctx: context.Background(),
}
c.initHooks(hooks{
dial: c.baseClient.dial,
process: c.baseClient.process,
})
c.connPool = newConnPool(opt, c.dialHook)
return c
}
func (c *SentinelClient) Context() context.Context {
return c.ctx
}
func (c *SentinelClient) WithContext(ctx context.Context) *SentinelClient {
if ctx == nil {
panic("nil context")
}
clone := *c
clone.ctx = ctx
return &clone
}
func (c *SentinelClient) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
err := c.processHook(ctx, cmd)
cmd.SetErr(err)
return err
}
func (c *SentinelClient) pubSub() *PubSub {
@ -335,8 +343,8 @@ func (c *SentinelClient) GetMasterAddrByName(ctx context.Context, name string) *
return cmd
}
func (c *SentinelClient) Sentinels(ctx context.Context, name string) *SliceCmd {
cmd := NewSliceCmd(ctx, "sentinel", "sentinels", name)
func (c *SentinelClient) Sentinels(ctx context.Context, name string) *MapStringStringSliceCmd {
cmd := NewMapStringStringSliceCmd(ctx, "sentinel", "sentinels", name)
_ = c.Process(ctx, cmd)
return cmd
}
@ -351,7 +359,7 @@ func (c *SentinelClient) Failover(ctx context.Context, name string) *StatusCmd {
// Reset resets all the masters with matching name. The pattern argument is a
// glob-style pattern. The reset process clears any previous state in a master
// (including a failover in progress), and removes every slave and sentinel
// (including a failover in progress), and removes every replica and sentinel
// already discovered and associated with the master.
func (c *SentinelClient) Reset(ctx context.Context, pattern string) *IntCmd {
cmd := NewIntCmd(ctx, "sentinel", "reset", pattern)
@ -368,8 +376,8 @@ func (c *SentinelClient) FlushConfig(ctx context.Context) *StatusCmd {
}
// Master shows the state and info of the specified master.
func (c *SentinelClient) Master(ctx context.Context, name string) *StringStringMapCmd {
cmd := NewStringStringMapCmd(ctx, "sentinel", "master", name)
func (c *SentinelClient) Master(ctx context.Context, name string) *MapStringStringCmd {
cmd := NewMapStringStringCmd(ctx, "sentinel", "master", name)
_ = c.Process(ctx, cmd)
return cmd
}
@ -381,9 +389,9 @@ func (c *SentinelClient) Masters(ctx context.Context) *SliceCmd {
return cmd
}
// Slaves shows a list of slaves for the specified master and their state.
func (c *SentinelClient) Slaves(ctx context.Context, name string) *SliceCmd {
cmd := NewSliceCmd(ctx, "sentinel", "slaves", name)
// Replicas shows a list of replicas for the specified master and their state.
func (c *SentinelClient) Replicas(ctx context.Context, name string) *MapStringStringSliceCmd {
cmd := NewMapStringStringSliceCmd(ctx, "sentinel", "replicas", name)
_ = c.Process(ctx, cmd)
return cmd
}
@ -460,18 +468,18 @@ func (c *sentinelFailover) closeSentinel() error {
return firstErr
}
func (c *sentinelFailover) RandomSlaveAddr(ctx context.Context) (string, error) {
func (c *sentinelFailover) RandomReplicaAddr(ctx context.Context) (string, error) {
if c.opt == nil {
return "", errors.New("opt is nil")
}
addresses, err := c.slaveAddrs(ctx, false)
addresses, err := c.replicaAddrs(ctx, false)
if err != nil {
return "", err
}
if len(addresses) == 0 && c.opt.UseDisconnectedSlaves {
addresses, err = c.slaveAddrs(ctx, true)
if len(addresses) == 0 && c.opt.UseDisconnectedReplicas {
addresses, err = c.replicaAddrs(ctx, true)
if err != nil {
return "", err
}
@ -489,8 +497,15 @@ func (c *sentinelFailover) MasterAddr(ctx context.Context) (string, error) {
c.mu.RUnlock()
if sentinel != nil {
addr := c.getMasterAddr(ctx, sentinel)
if addr != "" {
addr, err := c.getMasterAddr(ctx, sentinel)
if err != nil {
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return "", err
}
// Continue on other errors
internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName name=%q failed: %s",
c.opt.MasterName, err)
} else {
return addr, nil
}
}
@ -499,11 +514,18 @@ func (c *sentinelFailover) MasterAddr(ctx context.Context) (string, error) {
defer c.mu.Unlock()
if c.sentinel != nil {
addr := c.getMasterAddr(ctx, c.sentinel)
if addr != "" {
addr, err := c.getMasterAddr(ctx, c.sentinel)
if err != nil {
_ = c.closeSentinel()
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return "", err
}
// Continue on other errors
internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName name=%q failed: %s",
c.opt.MasterName, err)
} else {
return addr, nil
}
_ = c.closeSentinel()
}
for i, sentinelAddr := range c.sentinelAddrs {
@ -511,9 +533,12 @@ func (c *sentinelFailover) MasterAddr(ctx context.Context) (string, error) {
masterAddr, err := sentinel.GetMasterAddrByName(ctx, c.opt.MasterName).Result()
if err != nil {
_ = sentinel.Close()
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return "", err
}
internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName master=%q failed: %s",
c.opt.MasterName, err)
_ = sentinel.Close()
continue
}
@ -528,14 +553,21 @@ func (c *sentinelFailover) MasterAddr(ctx context.Context) (string, error) {
return "", errors.New("redis: all sentinels specified in configuration are unreachable")
}
func (c *sentinelFailover) slaveAddrs(ctx context.Context, useDisconnected bool) ([]string, error) {
func (c *sentinelFailover) replicaAddrs(ctx context.Context, useDisconnected bool) ([]string, error) {
c.mu.RLock()
sentinel := c.sentinel
c.mu.RUnlock()
if sentinel != nil {
addrs := c.getSlaveAddrs(ctx, sentinel)
if len(addrs) > 0 {
addrs, err := c.getReplicaAddrs(ctx, sentinel)
if err != nil {
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return nil, err
}
// Continue on other errors
internal.Logger.Printf(ctx, "sentinel: Replicas name=%q failed: %s",
c.opt.MasterName, err)
} else if len(addrs) > 0 {
return addrs, nil
}
}
@ -544,11 +576,21 @@ func (c *sentinelFailover) slaveAddrs(ctx context.Context, useDisconnected bool)
defer c.mu.Unlock()
if c.sentinel != nil {
addrs := c.getSlaveAddrs(ctx, c.sentinel)
if len(addrs) > 0 {
return addrs, nil
}
addrs, err := c.getReplicaAddrs(ctx, c.sentinel)
if err != nil {
_ = c.closeSentinel()
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return nil, err
}
// Continue on other errors
internal.Logger.Printf(ctx, "sentinel: Replicas name=%q failed: %s",
c.opt.MasterName, err)
} else if len(addrs) > 0 {
return addrs, nil
} else {
// No error and no replicas.
_ = c.closeSentinel()
}
}
var sentinelReachable bool
@ -556,15 +598,18 @@ func (c *sentinelFailover) slaveAddrs(ctx context.Context, useDisconnected bool)
for i, sentinelAddr := range c.sentinelAddrs {
sentinel := NewSentinelClient(c.opt.sentinelOptions(sentinelAddr))
slaves, err := sentinel.Slaves(ctx, c.opt.MasterName).Result()
replicas, err := sentinel.Replicas(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: Slaves master=%q failed: %s",
c.opt.MasterName, err)
_ = sentinel.Close()
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return nil, err
}
internal.Logger.Printf(ctx, "sentinel: Replicas master=%q failed: %s",
c.opt.MasterName, err)
continue
}
sentinelReachable = true
addrs := parseSlaveAddrs(slaves, useDisconnected)
addrs := parseReplicaAddrs(replicas, useDisconnected)
if len(addrs) == 0 {
continue
}
@ -581,48 +626,30 @@ func (c *sentinelFailover) slaveAddrs(ctx context.Context, useDisconnected bool)
return []string{}, errors.New("redis: all sentinels specified in configuration are unreachable")
}
func (c *sentinelFailover) getMasterAddr(ctx context.Context, sentinel *SentinelClient) string {
func (c *sentinelFailover) getMasterAddr(ctx context.Context, sentinel *SentinelClient) (string, error) {
addr, err := sentinel.GetMasterAddrByName(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: GetMasterAddrByName name=%q failed: %s",
c.opt.MasterName, err)
return ""
return "", err
}
return net.JoinHostPort(addr[0], addr[1])
return net.JoinHostPort(addr[0], addr[1]), nil
}
func (c *sentinelFailover) getSlaveAddrs(ctx context.Context, sentinel *SentinelClient) []string {
addrs, err := sentinel.Slaves(ctx, c.opt.MasterName).Result()
func (c *sentinelFailover) getReplicaAddrs(ctx context.Context, sentinel *SentinelClient) ([]string, error) {
addrs, err := sentinel.Replicas(ctx, c.opt.MasterName).Result()
if err != nil {
internal.Logger.Printf(ctx, "sentinel: Slaves name=%q failed: %s",
internal.Logger.Printf(ctx, "sentinel: Replicas name=%q failed: %s",
c.opt.MasterName, err)
return []string{}
return nil, err
}
return parseSlaveAddrs(addrs, false)
return parseReplicaAddrs(addrs, false), nil
}
func parseSlaveAddrs(addrs []interface{}, keepDisconnected bool) []string {
func parseReplicaAddrs(addrs []map[string]string, keepDisconnected bool) []string {
nodes := make([]string, 0, len(addrs))
for _, node := range addrs {
ip := ""
port := ""
flags := []string{}
lastkey := ""
isDown := false
for _, key := range node.([]interface{}) {
switch lastkey {
case "ip":
ip = key.(string)
case "port":
port = key.(string)
case "flags":
flags = strings.Split(key.(string), ",")
}
lastkey = key.(string)
}
for _, flag := range flags {
if flags, ok := node["flags"]; ok {
for _, flag := range strings.Split(flags, ",") {
switch flag {
case "s_down", "o_down":
isDown = true
@ -632,9 +659,9 @@ func parseSlaveAddrs(addrs []interface{}, keepDisconnected bool) []string {
}
}
}
if !isDown {
nodes = append(nodes, net.JoinHostPort(ip, port))
}
if !isDown && node["ip"] != "" && node["port"] != "" {
nodes = append(nodes, net.JoinHostPort(node["ip"], node["port"]))
}
}
@ -672,7 +699,7 @@ func (c *sentinelFailover) setSentinel(ctx context.Context, sentinel *SentinelCl
c.sentinel = sentinel
c.discoverSentinels(ctx)
c.pubsub = sentinel.Subscribe(ctx, "+switch-master", "+slave-reconf-done")
c.pubsub = sentinel.Subscribe(ctx, "+switch-master", "+replica-reconf-done")
go c.listen(c.pubsub)
}
@ -683,16 +710,13 @@ func (c *sentinelFailover) discoverSentinels(ctx context.Context) {
return
}
for _, sentinel := range sentinels {
vals := sentinel.([]interface{})
var ip, port string
for i := 0; i < len(vals); i += 2 {
key := vals[i].(string)
switch key {
case "ip":
ip = vals[i+1].(string)
case "port":
port = vals[i+1].(string)
ip, ok := sentinel["ip"]
if !ok {
continue
}
port, ok := sentinel["port"]
if !ok {
continue
}
if ip != "" && port != "" {
sentinelAddr := net.JoinHostPort(ip, port)
@ -742,7 +766,7 @@ func contains(slice []string, str string) bool {
//------------------------------------------------------------------------------
// NewFailoverClusterClient returns a client that supports routing read-only commands
// to a slave node.
// to a replica node.
func NewFailoverClusterClient(failoverOpt *FailoverOptions) *ClusterClient {
sentinelAddrs := make([]string, len(failoverOpt.SentinelAddrs))
copy(sentinelAddrs, failoverOpt.SentinelAddrs)
@ -763,14 +787,14 @@ func NewFailoverClusterClient(failoverOpt *FailoverOptions) *ClusterClient {
Addr: masterAddr,
}}
slaveAddrs, err := failover.slaveAddrs(ctx, false)
replicaAddrs, err := failover.replicaAddrs(ctx, false)
if err != nil {
return nil, err
}
for _, slaveAddr := range slaveAddrs {
for _, replicaAddr := range replicaAddrs {
nodes = append(nodes, ClusterNode{
Addr: slaveAddr,
Addr: replicaAddr,
})
}

View File

@ -3,8 +3,8 @@ package redis
import (
"context"
"github.com/go-redis/redis/v8/internal/pool"
"github.com/go-redis/redis/v8/internal/proto"
"github.com/redis/go-redis/v9/internal/pool"
"github.com/redis/go-redis/v9/internal/proto"
)
// TxFailedErr transaction redis failed.
@ -19,18 +19,16 @@ type Tx struct {
baseClient
cmdable
statefulCmdable
hooks
ctx context.Context
hooksMixin
}
func (c *Client) newTx(ctx context.Context) *Tx {
func (c *Client) newTx() *Tx {
tx := Tx{
baseClient: baseClient{
opt: c.opt,
connPool: pool.NewStickyConnPool(c.connPool),
},
hooks: c.hooks.clone(),
ctx: ctx,
hooksMixin: c.hooksMixin.clone(),
}
tx.init()
return &tx
@ -39,25 +37,19 @@ func (c *Client) newTx(ctx context.Context) *Tx {
func (c *Tx) init() {
c.cmdable = c.Process
c.statefulCmdable = c.Process
}
func (c *Tx) Context() context.Context {
return c.ctx
}
func (c *Tx) WithContext(ctx context.Context) *Tx {
if ctx == nil {
panic("nil context")
}
clone := *c
clone.init()
clone.hooks.lock()
clone.ctx = ctx
return &clone
c.initHooks(hooks{
dial: c.baseClient.dial,
process: c.baseClient.process,
pipeline: c.baseClient.processPipeline,
txPipeline: c.baseClient.processTxPipeline,
})
}
func (c *Tx) Process(ctx context.Context, cmd Cmder) error {
return c.hooks.process(ctx, cmd, c.baseClient.process)
err := c.processHook(ctx, cmd)
cmd.SetErr(err)
return err
}
// Watch prepares a transaction and marks the keys to be watched
@ -65,7 +57,7 @@ func (c *Tx) Process(ctx context.Context, cmd Cmder) error {
//
// The transaction is automatically closed when fn exits.
func (c *Client) Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error {
tx := c.newTx(ctx)
tx := c.newTx()
defer tx.Close(ctx)
if len(keys) > 0 {
if err := tx.Watch(ctx, keys...).Err(); err != nil {
@ -109,9 +101,8 @@ func (c *Tx) Unwatch(ctx context.Context, keys ...string) *StatusCmd {
// Pipeline creates a pipeline. Usually it is more convenient to use Pipelined.
func (c *Tx) Pipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: func(ctx context.Context, cmds []Cmder) error {
return c.hooks.processPipeline(ctx, cmds, c.baseClient.processPipeline)
return c.processPipelineHook(ctx, cmds)
},
}
pipe.init()
@ -139,11 +130,22 @@ func (c *Tx) TxPipelined(ctx context.Context, fn func(Pipeliner) error) ([]Cmder
// TxPipeline creates a pipeline. Usually it is more convenient to use TxPipelined.
func (c *Tx) TxPipeline() Pipeliner {
pipe := Pipeline{
ctx: c.ctx,
exec: func(ctx context.Context, cmds []Cmder) error {
return c.hooks.processTxPipeline(ctx, cmds, c.baseClient.processTxPipeline)
cmds = wrapMultiExec(ctx, cmds)
return c.processTxPipelineHook(ctx, cmds)
},
}
pipe.init()
return &pipe
}
func wrapMultiExec(ctx context.Context, cmds []Cmder) []Cmder {
if len(cmds) == 0 {
panic("not reached")
}
cmdsCopy := make([]Cmder, len(cmds)+2)
cmdsCopy[0] = NewStatusCmd(ctx, "multi")
copy(cmdsCopy[1:], cmds)
cmdsCopy[len(cmdsCopy)-1] = NewSliceCmd(ctx, "exec")
return cmdsCopy
}

View File

@ -14,6 +14,9 @@ type UniversalOptions struct {
// of cluster/sentinel nodes.
Addrs []string
// ClientName will execute the `CLIENT SETNAME ClientName` command for each conn.
ClientName string
// Database to be selected after connecting to the server.
// Only single-node and failover clients.
DB int
@ -23,6 +26,7 @@ type UniversalOptions struct {
Dialer func(ctx context.Context, network, addr string) (net.Conn, error)
OnConnect func(ctx context.Context, cn *Conn) error
Protocol int
Username string
Password string
SentinelUsername string
@ -35,16 +39,17 @@ type UniversalOptions struct {
DialTimeout time.Duration
ReadTimeout time.Duration
WriteTimeout time.Duration
ContextTimeoutEnabled bool
// PoolFIFO uses FIFO mode for each node connection pool GET/PUT (default LIFO).
PoolFIFO bool
PoolSize int
MinIdleConns int
MaxConnAge time.Duration
PoolTimeout time.Duration
IdleTimeout time.Duration
IdleCheckFrequency time.Duration
MinIdleConns int
MaxIdleConns int
ConnMaxIdleTime time.Duration
ConnMaxLifetime time.Duration
TLSConfig *tls.Config
@ -69,9 +74,11 @@ func (o *UniversalOptions) Cluster() *ClusterOptions {
return &ClusterOptions{
Addrs: o.Addrs,
ClientName: o.ClientName,
Dialer: o.Dialer,
OnConnect: o.OnConnect,
Protocol: o.Protocol,
Username: o.Username,
Password: o.Password,
@ -87,13 +94,16 @@ func (o *UniversalOptions) Cluster() *ClusterOptions {
DialTimeout: o.DialTimeout,
ReadTimeout: o.ReadTimeout,
WriteTimeout: o.WriteTimeout,
ContextTimeoutEnabled: o.ContextTimeoutEnabled,
PoolFIFO: o.PoolFIFO,
PoolSize: o.PoolSize,
MinIdleConns: o.MinIdleConns,
MaxConnAge: o.MaxConnAge,
PoolTimeout: o.PoolTimeout,
IdleTimeout: o.IdleTimeout,
IdleCheckFrequency: o.IdleCheckFrequency,
MinIdleConns: o.MinIdleConns,
MaxIdleConns: o.MaxIdleConns,
ConnMaxIdleTime: o.ConnMaxIdleTime,
ConnMaxLifetime: o.ConnMaxLifetime,
TLSConfig: o.TLSConfig,
}
@ -108,11 +118,13 @@ func (o *UniversalOptions) Failover() *FailoverOptions {
return &FailoverOptions{
SentinelAddrs: o.Addrs,
MasterName: o.MasterName,
ClientName: o.ClientName,
Dialer: o.Dialer,
OnConnect: o.OnConnect,
DB: o.DB,
Protocol: o.Protocol,
Username: o.Username,
Password: o.Password,
SentinelUsername: o.SentinelUsername,
@ -125,14 +137,15 @@ func (o *UniversalOptions) Failover() *FailoverOptions {
DialTimeout: o.DialTimeout,
ReadTimeout: o.ReadTimeout,
WriteTimeout: o.WriteTimeout,
ContextTimeoutEnabled: o.ContextTimeoutEnabled,
PoolFIFO: o.PoolFIFO,
PoolSize: o.PoolSize,
MinIdleConns: o.MinIdleConns,
MaxConnAge: o.MaxConnAge,
PoolTimeout: o.PoolTimeout,
IdleTimeout: o.IdleTimeout,
IdleCheckFrequency: o.IdleCheckFrequency,
MinIdleConns: o.MinIdleConns,
MaxIdleConns: o.MaxIdleConns,
ConnMaxIdleTime: o.ConnMaxIdleTime,
ConnMaxLifetime: o.ConnMaxLifetime,
TLSConfig: o.TLSConfig,
}
@ -147,10 +160,12 @@ func (o *UniversalOptions) Simple() *Options {
return &Options{
Addr: addr,
ClientName: o.ClientName,
Dialer: o.Dialer,
OnConnect: o.OnConnect,
DB: o.DB,
Protocol: o.Protocol,
Username: o.Username,
Password: o.Password,
@ -161,14 +176,15 @@ func (o *UniversalOptions) Simple() *Options {
DialTimeout: o.DialTimeout,
ReadTimeout: o.ReadTimeout,
WriteTimeout: o.WriteTimeout,
ContextTimeoutEnabled: o.ContextTimeoutEnabled,
PoolFIFO: o.PoolFIFO,
PoolSize: o.PoolSize,
MinIdleConns: o.MinIdleConns,
MaxConnAge: o.MaxConnAge,
PoolTimeout: o.PoolTimeout,
IdleTimeout: o.IdleTimeout,
IdleCheckFrequency: o.IdleCheckFrequency,
MinIdleConns: o.MinIdleConns,
MaxIdleConns: o.MaxIdleConns,
ConnMaxIdleTime: o.ConnMaxIdleTime,
ConnMaxLifetime: o.ConnMaxLifetime,
TLSConfig: o.TLSConfig,
}
@ -182,13 +198,13 @@ func (o *UniversalOptions) Simple() *Options {
// clients in different environments.
type UniversalClient interface {
Cmdable
Context() context.Context
AddHook(Hook)
Watch(ctx context.Context, fn func(*Tx) error, keys ...string) error
Do(ctx context.Context, args ...interface{}) *Cmd
Process(ctx context.Context, cmd Cmder) error
Subscribe(ctx context.Context, channels ...string) *PubSub
PSubscribe(ctx context.Context, channels ...string) *PubSub
SSubscribe(ctx context.Context, channels ...string) *PubSub
Close() error
PoolStats() *PoolStats
}

View File

@ -2,5 +2,5 @@ package redis
// Version is the current release version.
func Version() string {
return "8.11.5"
return "9.1.0"
}

22
vendor/modules.txt vendored
View File

@ -130,6 +130,8 @@ github.com/eggsampler/acme/v3
# github.com/felixge/httpsnoop v1.0.3
## explicit; go 1.13
github.com/felixge/httpsnoop
# github.com/fsnotify/fsnotify v1.4.9
## explicit; go 1.13
# github.com/go-logr/logr v1.2.4
## explicit; go 1.16
github.com/go-logr/logr
@ -144,16 +146,6 @@ github.com/go-playground/locales/currency
# github.com/go-playground/universal-translator v0.18.1
## explicit; go 1.18
github.com/go-playground/universal-translator
# github.com/go-redis/redis/v8 v8.11.5
## explicit; go 1.17
github.com/go-redis/redis/v8
github.com/go-redis/redis/v8/internal
github.com/go-redis/redis/v8/internal/hashtag
github.com/go-redis/redis/v8/internal/hscan
github.com/go-redis/redis/v8/internal/pool
github.com/go-redis/redis/v8/internal/proto
github.com/go-redis/redis/v8/internal/rand
github.com/go-redis/redis/v8/internal/util
# github.com/go-sql-driver/mysql v1.5.0
## explicit; go 1.10
github.com/go-sql-driver/mysql
@ -241,6 +233,16 @@ github.com/prometheus/common/model
github.com/prometheus/procfs
github.com/prometheus/procfs/internal/fs
github.com/prometheus/procfs/internal/util
# github.com/redis/go-redis/v9 v9.1.0
## explicit; go 1.18
github.com/redis/go-redis/v9
github.com/redis/go-redis/v9/internal
github.com/redis/go-redis/v9/internal/hashtag
github.com/redis/go-redis/v9/internal/hscan
github.com/redis/go-redis/v9/internal/pool
github.com/redis/go-redis/v9/internal/proto
github.com/redis/go-redis/v9/internal/rand
github.com/redis/go-redis/v9/internal/util
# github.com/rogpeppe/go-internal v1.9.0
## explicit; go 1.17
# github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399