mirror of https://github.com/istio/istio.io.git
235 lines
9.0 KiB
Bash
235 lines
9.0 KiB
Bash
#!/bin/bash
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# shellcheck disable=SC2034,SC2153,SC2155,SC2164
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# Copyright Istio Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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####################################################################################################
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# WARNING: THIS IS AN AUTO-GENERATED FILE, DO NOT EDIT. PLEASE MODIFY THE ORIGINAL MARKDOWN FILE:
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# docs/tasks/traffic-management/circuit-breaking/index.md
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####################################################################################################
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source "content/en/boilerplates/snips/start-httpbin-service.sh"
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snip_configuring_the_circuit_breaker_1() {
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kubectl apply -f - <<EOF
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apiVersion: networking.istio.io/v1alpha3
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kind: DestinationRule
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metadata:
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name: httpbin
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spec:
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host: httpbin
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trafficPolicy:
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connectionPool:
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tcp:
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maxConnections: 1
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http:
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http1MaxPendingRequests: 1
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maxRequestsPerConnection: 1
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outlierDetection:
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consecutive5xxErrors: 1
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interval: 1s
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baseEjectionTime: 3m
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maxEjectionPercent: 100
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EOF
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}
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snip_configuring_the_circuit_breaker_2() {
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kubectl get destinationrule httpbin -o yaml
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}
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! read -r -d '' snip_configuring_the_circuit_breaker_2_out <<\ENDSNIP
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apiVersion: networking.istio.io/v1beta1
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kind: DestinationRule
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...
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spec:
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host: httpbin
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trafficPolicy:
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connectionPool:
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http:
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http1MaxPendingRequests: 1
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maxRequestsPerConnection: 1
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tcp:
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maxConnections: 1
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outlierDetection:
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baseEjectionTime: 3m
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consecutive5xxErrors: 1
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interval: 1s
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maxEjectionPercent: 100
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ENDSNIP
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snip_adding_a_client_1() {
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kubectl apply -f samples/httpbin/sample-client/fortio-deploy.yaml
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}
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snip_adding_a_client_2() {
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kubectl apply -f <(istioctl kube-inject -f samples/httpbin/sample-client/fortio-deploy.yaml)
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}
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snip_adding_a_client_3() {
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export FORTIO_POD=$(kubectl get pods -l app=fortio -o 'jsonpath={.items[0].metadata.name}')
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kubectl exec "$FORTIO_POD" -c fortio -- /usr/bin/fortio curl -quiet http://httpbin:8000/get
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}
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! read -r -d '' snip_adding_a_client_3_out <<\ENDSNIP
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HTTP/1.1 200 OK
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server: envoy
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date: Tue, 25 Feb 2020 20:25:52 GMT
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content-type: application/json
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content-length: 586
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access-control-allow-origin: *
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access-control-allow-credentials: true
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x-envoy-upstream-service-time: 36
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{
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"args": {},
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"headers": {
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"Content-Length": "0",
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"Host": "httpbin:8000",
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"User-Agent": "fortio.org/fortio-1.3.1",
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"X-B3-Parentspanid": "8fc453fb1dec2c22",
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"X-B3-Sampled": "1",
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"X-B3-Spanid": "071d7f06bc94943c",
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"X-B3-Traceid": "86a929a0e76cda378fc453fb1dec2c22",
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"X-Forwarded-Client-Cert": "By=spiffe://cluster.local/ns/default/sa/httpbin;Hash=68bbaedefe01ef4cb99e17358ff63e92d04a4ce831a35ab9a31d3c8e06adb038;Subject=\"\";URI=spiffe://cluster.local/ns/default/sa/default"
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},
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"origin": "127.0.0.1",
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"url": "http://httpbin:8000/get"
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}
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ENDSNIP
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snip_tripping_the_circuit_breaker_1() {
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kubectl exec "$FORTIO_POD" -c fortio -- /usr/bin/fortio load -c 2 -qps 0 -n 20 -loglevel Warning http://httpbin:8000/get
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}
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! read -r -d '' snip_tripping_the_circuit_breaker_1_out <<\ENDSNIP
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20:33:46 I logger.go:97> Log level is now 3 Warning (was 2 Info)
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Fortio 1.3.1 running at 0 queries per second, 6->6 procs, for 20 calls: http://httpbin:8000/get
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Starting at max qps with 2 thread(s) [gomax 6] for exactly 20 calls (10 per thread + 0)
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20:33:46 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:33:47 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:33:47 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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Ended after 59.8524ms : 20 calls. qps=334.16
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Aggregated Function Time : count 20 avg 0.0056869 +/- 0.003869 min 0.000499 max 0.0144329 sum 0.113738
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# range, mid point, percentile, count
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>= 0.000499 <= 0.001 , 0.0007495 , 10.00, 2
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> 0.001 <= 0.002 , 0.0015 , 15.00, 1
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> 0.003 <= 0.004 , 0.0035 , 45.00, 6
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> 0.004 <= 0.005 , 0.0045 , 55.00, 2
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> 0.005 <= 0.006 , 0.0055 , 60.00, 1
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> 0.006 <= 0.007 , 0.0065 , 70.00, 2
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> 0.007 <= 0.008 , 0.0075 , 80.00, 2
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> 0.008 <= 0.009 , 0.0085 , 85.00, 1
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> 0.011 <= 0.012 , 0.0115 , 90.00, 1
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> 0.012 <= 0.014 , 0.013 , 95.00, 1
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> 0.014 <= 0.0144329 , 0.0142165 , 100.00, 1
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# target 50% 0.0045
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# target 75% 0.0075
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# target 90% 0.012
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# target 99% 0.0143463
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# target 99.9% 0.0144242
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Sockets used: 4 (for perfect keepalive, would be 2)
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Code 200 : 17 (85.0 %)
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Code 503 : 3 (15.0 %)
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Response Header Sizes : count 20 avg 195.65 +/- 82.19 min 0 max 231 sum 3913
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Response Body/Total Sizes : count 20 avg 729.9 +/- 205.4 min 241 max 817 sum 14598
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All done 20 calls (plus 0 warmup) 5.687 ms avg, 334.2 qps
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ENDSNIP
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! read -r -d '' snip_tripping_the_circuit_breaker_2 <<\ENDSNIP
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Code 200 : 17 (85.0 %)
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Code 503 : 3 (15.0 %)
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ENDSNIP
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snip_tripping_the_circuit_breaker_3() {
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kubectl exec "$FORTIO_POD" -c fortio -- /usr/bin/fortio load -c 3 -qps 0 -n 30 -loglevel Warning http://httpbin:8000/get
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}
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! read -r -d '' snip_tripping_the_circuit_breaker_3_out <<\ENDSNIP
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20:32:30 I logger.go:97> Log level is now 3 Warning (was 2 Info)
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Fortio 1.3.1 running at 0 queries per second, 6->6 procs, for 30 calls: http://httpbin:8000/get
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Starting at max qps with 3 thread(s) [gomax 6] for exactly 30 calls (10 per thread + 0)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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20:32:30 W http_client.go:679> Parsed non ok code 503 (HTTP/1.1 503)
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Ended after 51.9946ms : 30 calls. qps=576.98
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Aggregated Function Time : count 30 avg 0.0040001633 +/- 0.003447 min 0.0004298 max 0.015943 sum 0.1200049
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# range, mid point, percentile, count
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>= 0.0004298 <= 0.001 , 0.0007149 , 16.67, 5
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> 0.001 <= 0.002 , 0.0015 , 36.67, 6
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> 0.002 <= 0.003 , 0.0025 , 50.00, 4
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> 0.003 <= 0.004 , 0.0035 , 60.00, 3
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> 0.004 <= 0.005 , 0.0045 , 66.67, 2
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> 0.005 <= 0.006 , 0.0055 , 76.67, 3
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> 0.006 <= 0.007 , 0.0065 , 83.33, 2
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> 0.007 <= 0.008 , 0.0075 , 86.67, 1
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> 0.008 <= 0.009 , 0.0085 , 90.00, 1
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> 0.009 <= 0.01 , 0.0095 , 96.67, 2
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> 0.014 <= 0.015943 , 0.0149715 , 100.00, 1
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# target 50% 0.003
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# target 75% 0.00583333
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# target 90% 0.009
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# target 99% 0.0153601
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# target 99.9% 0.0158847
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Sockets used: 20 (for perfect keepalive, would be 3)
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Code 200 : 11 (36.7 %)
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Code 503 : 19 (63.3 %)
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Response Header Sizes : count 30 avg 84.366667 +/- 110.9 min 0 max 231 sum 2531
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Response Body/Total Sizes : count 30 avg 451.86667 +/- 277.1 min 241 max 817 sum 13556
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All done 30 calls (plus 0 warmup) 4.000 ms avg, 577.0 qps
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ENDSNIP
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! read -r -d '' snip_tripping_the_circuit_breaker_4 <<\ENDSNIP
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Code 200 : 11 (36.7 %)
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Code 503 : 19 (63.3 %)
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ENDSNIP
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snip_tripping_the_circuit_breaker_5() {
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kubectl exec "$FORTIO_POD" -c istio-proxy -- pilot-agent request GET stats | grep httpbin | grep pending
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}
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! read -r -d '' snip_tripping_the_circuit_breaker_5_out <<\ENDSNIP
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cluster.outbound|8000||httpbin.default.svc.cluster.local.circuit_breakers.default.remaining_pending: 1
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cluster.outbound|8000||httpbin.default.svc.cluster.local.circuit_breakers.default.rq_pending_open: 0
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cluster.outbound|8000||httpbin.default.svc.cluster.local.circuit_breakers.high.rq_pending_open: 0
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cluster.outbound|8000||httpbin.default.svc.cluster.local.upstream_rq_pending_active: 0
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cluster.outbound|8000||httpbin.default.svc.cluster.local.upstream_rq_pending_failure_eject: 0
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cluster.outbound|8000||httpbin.default.svc.cluster.local.upstream_rq_pending_overflow: 21
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cluster.outbound|8000||httpbin.default.svc.cluster.local.upstream_rq_pending_total: 29
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ENDSNIP
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snip_cleaning_up_1() {
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kubectl delete destinationrule httpbin
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}
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snip_cleaning_up_2() {
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kubectl delete deploy httpbin fortio-deploy
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kubectl delete svc httpbin fortio
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}
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