mirror of https://github.com/etcd-io/dbtester.git
106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
// Copyright 2017 CoreOS, Inc.
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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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package dbtester
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import (
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"errors"
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"fmt"
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"time"
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"github.com/samuel/go-zookeeper/zk"
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"golang.org/x/net/context"
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)
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var (
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zkCreateFlags = int32(0)
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zkCreateACL = zk.WorldACL(zk.PermAll)
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)
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type zkOp struct {
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key string
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value []byte
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staleRead bool
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}
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func mustCreateConnsZk(endpoints []string, total int64) []*zk.Conn {
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zks := make([]*zk.Conn, total)
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for i := range zks {
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endpoint := endpoints[dialTotal%len(endpoints)]
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dialTotal++
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conn, _, err := zk.Connect([]string{endpoint}, time.Second)
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if err != nil {
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plog.Fatal(err)
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}
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zks[i] = conn
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}
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return zks
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}
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func newPutCreateZK(conn *zk.Conn) ReqHandler {
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return func(ctx context.Context, req *request) error {
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op := req.zkOp
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_, err := conn.Create(op.key, op.value, zkCreateFlags, zkCreateACL)
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return err
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}
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}
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func newPutOverwriteZK(conn *zk.Conn) ReqHandler {
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// samekey
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return func(ctx context.Context, req *request) error {
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op := req.zkOp
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_, err := conn.Set(op.key, op.value, int32(-1))
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return err
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}
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}
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func newGetZK(conn *zk.Conn) ReqHandler {
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return func(ctx context.Context, req *request) error {
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errt := ""
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if !req.zkOp.staleRead {
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_, err := conn.Sync("/" + req.zkOp.key)
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if err != nil {
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errt += err.Error()
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}
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}
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_, _, err := conn.Get("/" + req.zkOp.key)
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if err != nil {
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if errt != "" {
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errt += "; "
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}
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errt += fmt.Sprintf("%q while getting %q", err.Error(), "/"+req.zkOp.key)
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}
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if errt != "" {
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return errors.New(errt)
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}
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return nil
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}
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}
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func getTotalKeysZk(endpoints []string) map[string]int64 {
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rs := make(map[string]int64)
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stats, ok := zk.FLWSrvr(endpoints, 5*time.Second)
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if !ok {
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plog.Printf("getTotalKeysZk failed with %+v", stats)
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for _, ep := range endpoints {
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rs[ep] = 0
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}
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return rs
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}
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for i, s := range stats {
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rs[endpoints[i]] = s.NodeCount
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}
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return rs
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}
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