mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
133 lines
2.9 KiB
Go
133 lines
2.9 KiB
Go
// Copyright 2016 The etcd Authors
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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 main
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import (
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"flag"
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"fmt"
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"log"
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"math/rand"
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"os"
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"strings"
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"sync"
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"time"
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"github.com/coreos/etcd/clientv3"
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)
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func init() {
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rand.Seed(time.Now().UTC().UnixNano())
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}
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func main() {
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log.SetFlags(log.Lmicroseconds)
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endpointStr := flag.String("endpoints", "localhost:2379", "endpoints of etcd cluster")
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mode := flag.String("mode", "watcher", "test mode (election, lock-racer, lease-renewer, watcher)")
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round := flag.Int("rounds", 100, "number of rounds to run")
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clientTimeout := flag.Int("client-timeout", 60, "max timeout seconds for a client to get connection")
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flag.Parse()
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eps := strings.Split(*endpointStr, ",")
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getClient := func() *clientv3.Client { return newClient(eps, *clientTimeout) }
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switch *mode {
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case "election":
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runElection(getClient, *round)
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case "lock-racer":
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runRacer(getClient, *round)
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case "lease-renewer":
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runLeaseRenewer(getClient)
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case "watcher":
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runWatcher(getClient, *round)
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default:
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fmt.Fprintf(os.Stderr, "unsupported mode %v\n", *mode)
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}
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}
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type getClientFunc func() *clientv3.Client
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func newClient(eps []string, timeout int) *clientv3.Client {
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c, err := clientv3.New(clientv3.Config{
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Endpoints: eps,
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DialTimeout: time.Duration(timeout) * time.Second,
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})
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if err != nil {
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log.Fatal(err)
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}
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return c
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}
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type roundClient struct {
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c *clientv3.Client
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progress int
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acquire func() error
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validate func() error
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release func() error
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}
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func doRounds(rcs []roundClient, rounds int) {
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var mu sync.Mutex
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var wg sync.WaitGroup
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wg.Add(len(rcs))
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finished := make(chan struct{}, 0)
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for i := range rcs {
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go func(rc *roundClient) {
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defer wg.Done()
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for rc.progress < rounds {
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for rc.acquire() != nil { /* spin */
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}
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mu.Lock()
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if err := rc.validate(); err != nil {
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log.Fatal(err)
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}
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mu.Unlock()
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time.Sleep(10 * time.Millisecond)
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rc.progress++
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finished <- struct{}{}
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mu.Lock()
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for rc.release() != nil {
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mu.Unlock()
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mu.Lock()
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}
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mu.Unlock()
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}
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}(&rcs[i])
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}
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start := time.Now()
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for i := 1; i < len(rcs)*rounds+1; i++ {
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select {
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case <-finished:
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if i%100 == 0 {
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fmt.Printf("finished %d, took %v\n", i, time.Since(start))
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start = time.Now()
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}
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case <-time.After(time.Minute):
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log.Panic("no progress after 1 minute!")
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}
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}
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wg.Wait()
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for _, rc := range rcs {
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rc.c.Close()
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}
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}
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