118 lines
3.3 KiB
Go
118 lines
3.3 KiB
Go
// Copyright 2018 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 snapshot
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import (
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"context"
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"fmt"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/coreos/etcd/clientv3"
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"github.com/coreos/etcd/embed"
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"github.com/coreos/etcd/etcdserver"
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"github.com/coreos/etcd/pkg/testutil"
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)
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// TestSnapshotV3RestoreMultiMemberAdd ensures that multiple members
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// can boot into the same cluster after being restored from a same
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// snapshot file, and also be able to add another member to the cluster.
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func TestSnapshotV3RestoreMultiMemberAdd(t *testing.T) {
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kvs := []kv{{"foo1", "bar1"}, {"foo2", "bar2"}, {"foo3", "bar3"}}
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dbPath := createSnapshotFile(t, kvs)
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clusterN := 3
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cURLs, pURLs, srvs := restoreCluster(t, clusterN, dbPath)
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defer func() {
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for i := 0; i < clusterN; i++ {
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os.RemoveAll(srvs[i].Config().Dir)
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srvs[i].Close()
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}
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}()
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// wait for health interval + leader election
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time.Sleep(etcdserver.HealthInterval + 2*time.Second)
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cli, err := clientv3.New(clientv3.Config{Endpoints: []string{cURLs[0].String()}})
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if err != nil {
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t.Fatal(err)
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}
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defer cli.Close()
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urls := newEmbedURLs(2)
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newCURLs, newPURLs := urls[:1], urls[1:]
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if _, err = cli.MemberAdd(context.Background(), []string{newPURLs[0].String()}); err != nil {
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t.Fatal(err)
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}
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cfg := embed.NewConfig()
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cfg.Name = "3"
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cfg.InitialClusterToken = testClusterTkn
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cfg.ClusterState = "existing"
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cfg.LCUrls, cfg.ACUrls = newCURLs, newCURLs
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cfg.LPUrls, cfg.APUrls = newPURLs, newPURLs
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cfg.InitialCluster = ""
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for i := 0; i < clusterN; i++ {
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cfg.InitialCluster += fmt.Sprintf(",%d=%s", i, pURLs[i].String())
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}
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cfg.InitialCluster = cfg.InitialCluster[1:]
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cfg.InitialCluster += fmt.Sprintf(",%s=%s", cfg.Name, newPURLs[0].String())
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cfg.Dir = filepath.Join(os.TempDir(), fmt.Sprint(time.Now().Nanosecond()))
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srv, err := embed.StartEtcd(cfg)
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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os.RemoveAll(cfg.Dir)
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srv.Close()
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}()
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select {
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case <-srv.Server.ReadyNotify():
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case <-time.After(10 * time.Second):
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t.Fatalf("failed to start the newly added etcd member")
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}
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cli2, err := clientv3.New(clientv3.Config{Endpoints: []string{newCURLs[0].String()}})
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if err != nil {
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t.Fatal(err)
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}
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defer cli2.Close()
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ctx, cancel := context.WithTimeout(context.Background(), testutil.RequestTimeout)
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mresp, err := cli2.MemberList(ctx)
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cancel()
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if err != nil {
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t.Fatal(err)
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}
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if len(mresp.Members) != 4 {
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t.Fatalf("expected 4 members, got %+v", mresp)
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}
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for i := range kvs {
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var gresp *clientv3.GetResponse
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ctx, cancel = context.WithTimeout(context.Background(), testutil.RequestTimeout)
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gresp, err = cli2.Get(ctx, kvs[i].k)
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cancel()
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if err != nil {
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t.Fatal(err)
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}
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if string(gresp.Kvs[0].Value) != kvs[i].v {
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t.Fatalf("#%d: value expected %s, got %s", i, kvs[i].v, string(gresp.Kvs[0].Value))
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}
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}
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}
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