mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
270 lines
7.6 KiB
Go
270 lines
7.6 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 e2e
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import (
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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"go.etcd.io/etcd/clientv3/snapshot"
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"go.etcd.io/etcd/pkg/expect"
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"go.etcd.io/etcd/pkg/testutil"
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)
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func TestCtlV3Snapshot(t *testing.T) { testCtl(t, snapshotTest) }
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func snapshotTest(cx ctlCtx) {
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maintenanceInitKeys(cx)
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leaseID, err := ctlV3LeaseGrant(cx, 100)
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if err != nil {
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cx.t.Fatalf("snapshot: ctlV3LeaseGrant error (%v)", err)
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}
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if err = ctlV3Put(cx, "withlease", "withlease", leaseID); err != nil {
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cx.t.Fatalf("snapshot: ctlV3Put error (%v)", err)
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}
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fpath := "test1.snapshot"
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defer os.RemoveAll(fpath)
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if err = ctlV3SnapshotSave(cx, fpath); err != nil {
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cx.t.Fatalf("snapshotTest ctlV3SnapshotSave error (%v)", err)
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}
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st, err := getSnapshotStatus(cx, fpath)
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if err != nil {
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cx.t.Fatalf("snapshotTest getSnapshotStatus error (%v)", err)
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}
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if st.Revision != 5 {
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cx.t.Fatalf("expected 4, got %d", st.Revision)
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}
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if st.TotalKey < 4 {
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cx.t.Fatalf("expected at least 4, got %d", st.TotalKey)
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}
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}
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func TestCtlV3SnapshotCorrupt(t *testing.T) { testCtl(t, snapshotCorruptTest) }
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func snapshotCorruptTest(cx ctlCtx) {
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fpath := "test2.snapshot"
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defer os.RemoveAll(fpath)
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if err := ctlV3SnapshotSave(cx, fpath); err != nil {
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cx.t.Fatalf("snapshotTest ctlV3SnapshotSave error (%v)", err)
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}
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// corrupt file
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f, oerr := os.OpenFile(fpath, os.O_WRONLY, 0)
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if oerr != nil {
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cx.t.Fatal(oerr)
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}
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if _, err := f.Write(make([]byte, 512)); err != nil {
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cx.t.Fatal(err)
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}
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f.Close()
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defer os.RemoveAll("snap.etcd")
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serr := spawnWithExpect(
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append(cx.PrefixArgs(), "snapshot", "restore",
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"--data-dir", "snap.etcd",
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fpath),
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"expected sha256")
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if serr != nil {
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cx.t.Fatal(serr)
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}
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}
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// This test ensures that the snapshot status does not modify the snapshot file
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func TestCtlV3SnapshotStatusBeforeRestore(t *testing.T) { testCtl(t, snapshotStatusBeforeRestoreTest) }
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func snapshotStatusBeforeRestoreTest(cx ctlCtx) {
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fpath := "test3.snapshot"
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defer os.RemoveAll(fpath)
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if err := ctlV3SnapshotSave(cx, fpath); err != nil {
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cx.t.Fatalf("snapshotTest ctlV3SnapshotSave error (%v)", err)
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}
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// snapshot status on the fresh snapshot file
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_, err := getSnapshotStatus(cx, fpath)
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if err != nil {
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cx.t.Fatalf("snapshotTest getSnapshotStatus error (%v)", err)
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}
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defer os.RemoveAll("snap.etcd")
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serr := spawnWithExpect(
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append(cx.PrefixArgs(), "snapshot", "restore",
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"--data-dir", "snap.etcd",
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fpath),
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"added member")
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if serr != nil {
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cx.t.Fatal(serr)
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}
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}
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func ctlV3SnapshotSave(cx ctlCtx, fpath string) error {
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cmdArgs := append(cx.PrefixArgs(), "snapshot", "save", fpath)
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return spawnWithExpect(cmdArgs, fmt.Sprintf("Snapshot saved at %s", fpath))
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}
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func getSnapshotStatus(cx ctlCtx, fpath string) (snapshot.Status, error) {
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cmdArgs := append(cx.PrefixArgs(), "--write-out", "json", "snapshot", "status", fpath)
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proc, err := spawnCmd(cmdArgs)
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if err != nil {
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return snapshot.Status{}, err
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}
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var txt string
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txt, err = proc.Expect("totalKey")
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if err != nil {
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return snapshot.Status{}, err
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}
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if err = proc.Close(); err != nil {
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return snapshot.Status{}, err
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}
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resp := snapshot.Status{}
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dec := json.NewDecoder(strings.NewReader(txt))
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if err := dec.Decode(&resp); err == io.EOF {
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return snapshot.Status{}, err
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}
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return resp, nil
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}
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// TestIssue6361 ensures new member that starts with snapshot correctly
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// syncs up with other members and serve correct data.
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func TestIssue6361(t *testing.T) {
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defer testutil.AfterTest(t)
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mustEtcdctl(t)
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os.Setenv("ETCDCTL_API", "3")
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defer os.Unsetenv("ETCDCTL_API")
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epc, err := newEtcdProcessCluster(&etcdProcessClusterConfig{
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clusterSize: 1,
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initialToken: "new",
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keepDataDir: true,
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})
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if err != nil {
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t.Fatalf("could not start etcd process cluster (%v)", err)
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}
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defer func() {
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if errC := epc.Close(); errC != nil {
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t.Fatalf("error closing etcd processes (%v)", errC)
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}
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}()
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dialTimeout := 7 * time.Second
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prefixArgs := []string{ctlBinPath, "--endpoints", strings.Join(epc.EndpointsV3(), ","), "--dial-timeout", dialTimeout.String()}
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// write some keys
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kvs := []kv{{"foo1", "val1"}, {"foo2", "val2"}, {"foo3", "val3"}}
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for i := range kvs {
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if err = spawnWithExpect(append(prefixArgs, "put", kvs[i].key, kvs[i].val), "OK"); err != nil {
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t.Fatal(err)
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}
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}
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fpath := filepath.Join(os.TempDir(), "test.snapshot")
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defer os.RemoveAll(fpath)
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// etcdctl save snapshot
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if err = spawnWithExpect(append(prefixArgs, "snapshot", "save", fpath), fmt.Sprintf("Snapshot saved at %s", fpath)); err != nil {
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t.Fatal(err)
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}
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if err = epc.procs[0].Stop(); err != nil {
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t.Fatal(err)
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}
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newDataDir := filepath.Join(os.TempDir(), "test.data")
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defer os.RemoveAll(newDataDir)
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// etcdctl restore the snapshot
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err = spawnWithExpect([]string{ctlBinPath, "snapshot", "restore", fpath, "--name", epc.procs[0].Config().name, "--initial-cluster", epc.procs[0].Config().initialCluster, "--initial-cluster-token", epc.procs[0].Config().initialToken, "--initial-advertise-peer-urls", epc.procs[0].Config().purl.String(), "--data-dir", newDataDir}, "added member")
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if err != nil {
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t.Fatal(err)
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}
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// start the etcd member using the restored snapshot
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epc.procs[0].Config().dataDirPath = newDataDir
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for i := range epc.procs[0].Config().args {
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if epc.procs[0].Config().args[i] == "--data-dir" {
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epc.procs[0].Config().args[i+1] = newDataDir
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}
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}
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if err = epc.procs[0].Restart(); err != nil {
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t.Fatal(err)
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}
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// ensure the restored member has the correct data
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for i := range kvs {
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if err = spawnWithExpect(append(prefixArgs, "get", kvs[i].key), kvs[i].val); err != nil {
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t.Fatal(err)
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}
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}
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// add a new member into the cluster
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clientURL := fmt.Sprintf("http://localhost:%d", etcdProcessBasePort+30)
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peerURL := fmt.Sprintf("http://localhost:%d", etcdProcessBasePort+31)
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err = spawnWithExpect(append(prefixArgs, "member", "add", "newmember", fmt.Sprintf("--peer-urls=%s", peerURL)), " added to cluster ")
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if err != nil {
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t.Fatal(err)
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}
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var newDataDir2 string
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newDataDir2, err = ioutil.TempDir("", "newdata2")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(newDataDir2)
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name2 := "infra2"
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initialCluster2 := epc.procs[0].Config().initialCluster + fmt.Sprintf(",%s=%s", name2, peerURL)
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// start the new member
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var nepc *expect.ExpectProcess
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nepc, err = spawnCmd([]string{epc.procs[0].Config().execPath, "--name", name2,
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"--listen-client-urls", clientURL, "--advertise-client-urls", clientURL,
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"--listen-peer-urls", peerURL, "--initial-advertise-peer-urls", peerURL,
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"--initial-cluster", initialCluster2, "--initial-cluster-state", "existing", "--data-dir", newDataDir2})
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if err != nil {
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t.Fatal(err)
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}
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if _, err = nepc.Expect("enabled capabilities for version"); err != nil {
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t.Fatal(err)
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}
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prefixArgs = []string{ctlBinPath, "--endpoints", clientURL, "--dial-timeout", dialTimeout.String()}
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// ensure added member has data from incoming snapshot
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for i := range kvs {
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if err = spawnWithExpect(append(prefixArgs, "get", kvs[i].key), kvs[i].val); err != nil {
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t.Fatal(err)
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}
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}
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if err = nepc.Stop(); err != nil {
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t.Fatal(err)
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}
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}
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