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Merge pull request #9198 from gyuho/snapshot-test
snapshot: add "snapshot" restore/save/member-add tests
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// Copyright 2018 The etcd Authors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package testutil | ||
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import "time" | ||
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var ( | ||
RequestTimeout = 3 * time.Second | ||
) |
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// Copyright 2018 The etcd Authors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package snapshot | ||
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import ( | ||
"context" | ||
"fmt" | ||
"os" | ||
"path/filepath" | ||
"testing" | ||
"time" | ||
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"github.com/coreos/etcd/clientv3" | ||
"github.com/coreos/etcd/embed" | ||
"github.com/coreos/etcd/etcdserver" | ||
"github.com/coreos/etcd/pkg/testutil" | ||
) | ||
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// TestSnapshotV3RestoreMultiMemberAdd ensures that multiple members | ||
// can boot into the same cluster after being restored from a same | ||
// snapshot file, and also be able to add another member to the cluster. | ||
func TestSnapshotV3RestoreMultiMemberAdd(t *testing.T) { | ||
kvs := []kv{{"foo1", "bar1"}, {"foo2", "bar2"}, {"foo3", "bar3"}} | ||
dbPath := createSnapshotFile(t, kvs) | ||
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clusterN := 3 | ||
cURLs, pURLs, srvs := restoreCluster(t, clusterN, dbPath) | ||
defer func() { | ||
for i := 0; i < clusterN; i++ { | ||
os.RemoveAll(srvs[i].Config().Dir) | ||
srvs[i].Close() | ||
} | ||
}() | ||
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// wait for health interval + leader election | ||
time.Sleep(etcdserver.HealthInterval + 2*time.Second) | ||
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cli, err := clientv3.New(clientv3.Config{Endpoints: []string{cURLs[0].String()}}) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
defer cli.Close() | ||
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urls := newEmbedURLs(2) | ||
newCURLs, newPURLs := urls[:1], urls[1:] | ||
if _, err = cli.MemberAdd(context.Background(), []string{newPURLs[0].String()}); err != nil { | ||
t.Fatal(err) | ||
} | ||
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cfg := embed.NewConfig() | ||
cfg.Name = "3" | ||
cfg.InitialClusterToken = testClusterTkn | ||
cfg.ClusterState = "existing" | ||
cfg.LCUrls, cfg.ACUrls = newCURLs, newCURLs | ||
cfg.LPUrls, cfg.APUrls = newPURLs, newPURLs | ||
cfg.InitialCluster = "" | ||
for i := 0; i < clusterN; i++ { | ||
cfg.InitialCluster += fmt.Sprintf(",%d=%s", i, pURLs[i].String()) | ||
} | ||
cfg.InitialCluster = cfg.InitialCluster[1:] | ||
cfg.InitialCluster += fmt.Sprintf(",%s=%s", cfg.Name, newPURLs[0].String()) | ||
cfg.Dir = filepath.Join(os.TempDir(), fmt.Sprint(time.Now().Nanosecond())) | ||
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srv, err := embed.StartEtcd(cfg) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
defer func() { | ||
os.RemoveAll(cfg.Dir) | ||
srv.Close() | ||
}() | ||
select { | ||
case <-srv.Server.ReadyNotify(): | ||
case <-time.After(10 * time.Second): | ||
t.Fatalf("failed to start the newly added etcd member") | ||
} | ||
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cli2, err := clientv3.New(clientv3.Config{Endpoints: []string{newCURLs[0].String()}}) | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
defer cli2.Close() | ||
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ctx, cancel := context.WithTimeout(context.Background(), testutil.RequestTimeout) | ||
mresp, err := cli2.MemberList(ctx) | ||
cancel() | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
if len(mresp.Members) != 4 { | ||
t.Fatalf("expected 4 members, got %+v", mresp) | ||
} | ||
for i := range kvs { | ||
var gresp *clientv3.GetResponse | ||
ctx, cancel = context.WithTimeout(context.Background(), testutil.RequestTimeout) | ||
gresp, err = cli2.Get(ctx, kvs[i].k) | ||
cancel() | ||
if err != nil { | ||
t.Fatal(err) | ||
} | ||
if string(gresp.Kvs[0].Value) != kvs[i].v { | ||
t.Fatalf("#%d: value expected %s, got %s", i, kvs[i].v, string(gresp.Kvs[0].Value)) | ||
} | ||
} | ||
} |
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