mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
308 lines
9.1 KiB
Go
308 lines
9.1 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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"context"
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"encoding/json"
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"fmt"
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"io"
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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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"github.com/stretchr/testify/require"
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"go.etcd.io/etcd/etcdutl/v3/snapshot"
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"go.etcd.io/etcd/pkg/v3/expect"
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"go.etcd.io/etcd/tests/v3/framework/e2e"
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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 := filepath.Join(cx.t.TempDir(), "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 := filepath.Join(cx.t.TempDir(), "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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datadir := cx.t.TempDir()
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serr := e2e.SpawnWithExpectWithEnv(
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append(cx.PrefixArgsUtl(), "snapshot", "restore",
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"--data-dir", datadir,
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fpath),
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cx.envMap,
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"expected sha256")
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require.ErrorContains(cx.t, serr, "Error: expected sha256")
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}
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// TestCtlV3SnapshotStatusBeforeRestore ensures that the snapshot
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// status does not modify the snapshot file
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func TestCtlV3SnapshotStatusBeforeRestore(t *testing.T) {
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testCtl(t, snapshotStatusBeforeRestoreTest)
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}
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func snapshotStatusBeforeRestoreTest(cx ctlCtx) {
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fpath := filepath.Join(cx.t.TempDir(), "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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dataDir := cx.t.TempDir()
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defer os.RemoveAll(dataDir)
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serr := e2e.SpawnWithExpectWithEnv(
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append(cx.PrefixArgsUtl(), "snapshot", "restore",
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"--data-dir", dataDir,
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fpath),
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cx.envMap,
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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 e2e.SpawnWithExpectWithEnv(cmdArgs, cx.envMap, 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.PrefixArgsUtl(), "--write-out", "json", "snapshot", "status", fpath)
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proc, err := e2e.SpawnCmd(cmdArgs, nil)
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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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func TestIssue6361(t *testing.T) { testIssue6361(t) }
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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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{
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// This tests is pretty flaky on semaphoreci as of 2021-01-10.
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// TODO: Remove when the flakiness source is identified.
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oldenv := os.Getenv("EXPECT_DEBUG")
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defer os.Setenv("EXPECT_DEBUG", oldenv)
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os.Setenv("EXPECT_DEBUG", "1")
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}
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e2e.BeforeTest(t)
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epc, err := e2e.NewEtcdProcessCluster(context.TODO(), t,
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e2e.WithClusterSize(1),
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e2e.WithKeepDataDir(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 := 10 * time.Second
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prefixArgs := []string{e2e.BinPath.Etcdctl, "--endpoints", strings.Join(epc.EndpointsV3(), ","), "--dial-timeout", dialTimeout.String()}
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t.Log("Writing 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 = e2e.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(t.TempDir(), "test.snapshot")
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t.Log("etcdctl saving snapshot...")
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if err = e2e.SpawnWithExpects(append(prefixArgs, "snapshot", "save", fpath),
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nil,
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fmt.Sprintf("Snapshot saved at %s", fpath),
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); err != nil {
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t.Fatal(err)
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}
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t.Log("Stopping the original server...")
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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(t.TempDir(), "test.data")
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t.Log("etcdctl restoring the snapshot...")
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err = e2e.SpawnWithExpect([]string{e2e.BinPath.Etcdutl, "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().PeerURL.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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t.Log("(Re)starting 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(context.TODO()); err != nil {
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t.Fatal(err)
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}
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t.Log("Ensuring the restored member has the correct data...")
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for i := range kvs {
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if err = e2e.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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t.Log("Adding new member into the cluster")
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clientURL := fmt.Sprintf("http://localhost:%d", e2e.EtcdProcessBasePort+30)
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peerURL := fmt.Sprintf("http://localhost:%d", e2e.EtcdProcessBasePort+31)
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err = e2e.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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newDataDir2 := t.TempDir()
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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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t.Log("Starting the new member")
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// start the new member
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var nepc *expect.ExpectProcess
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nepc, err = e2e.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}, nil)
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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("ready to serve client requests"); err != nil {
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t.Fatal(err)
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}
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prefixArgs = []string{e2e.BinPath.Etcdctl, "--endpoints", clientURL, "--dial-timeout", dialTimeout.String()}
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t.Log("Ensuring added member has data from incoming snapshot...")
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for i := range kvs {
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if err = e2e.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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t.Log("Stopping the second member")
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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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t.Log("Test logic done")
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}
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// TestCtlV3SnapshotVersion is for storageVersion to be stored, all fields
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// expected 3.6 fields need to be set. This happens after first WAL snapshot.
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// In this test we lower SnapshotCount to 1 to ensure WAL snapshot is triggered.
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func TestCtlV3SnapshotVersion(t *testing.T) {
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testCtl(t, snapshotVersionTest, withCfg(*e2e.NewConfig(e2e.WithSnapshotCount(1))))
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}
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func snapshotVersionTest(cx ctlCtx) {
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maintenanceInitKeys(cx)
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fpath := filepath.Join(cx.t.TempDir(), "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("snapshotVersionTest 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("snapshotVersionTest getSnapshotStatus error (%v)", err)
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}
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if st.Version != "3.6.0" {
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cx.t.Fatalf("expected %q, got %q", "3.6.0", st.Version)
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}
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}
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