mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
5ddabfdb24
Thanks to this, unix sockets should be not longer created by integration tests in the the source code directory, so potentially trigger IDE reloads and unnecessery load (and mess).
307 lines
8.2 KiB
Go
307 lines
8.2 KiB
Go
// 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.
|
|
|
|
package snapshot_test
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"math/rand"
|
|
"net/url"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"go.etcd.io/etcd/client/v3"
|
|
"go.etcd.io/etcd/etcdctl/v3/snapshot"
|
|
"go.etcd.io/etcd/pkg/v3/testutil"
|
|
"go.etcd.io/etcd/server/v3/embed"
|
|
"go.uber.org/zap/zaptest"
|
|
)
|
|
|
|
// TestSnapshotV3RestoreSingle tests single node cluster restoring
|
|
// from a snapshot file.
|
|
func TestSnapshotV3RestoreSingle(t *testing.T) {
|
|
kvs := []kv{{"foo1", "bar1"}, {"foo2", "bar2"}, {"foo3", "bar3"}}
|
|
dbPath := createSnapshotFile(t, kvs)
|
|
defer os.RemoveAll(dbPath)
|
|
|
|
clusterN := 1
|
|
urls := newEmbedURLs(clusterN * 2)
|
|
cURLs, pURLs := urls[:clusterN], urls[clusterN:]
|
|
|
|
cfg := embed.NewConfig()
|
|
cfg.Logger = "zap"
|
|
cfg.LogOutputs = []string{"/dev/null"}
|
|
cfg.Name = "s1"
|
|
cfg.InitialClusterToken = testClusterTkn
|
|
cfg.ClusterState = "existing"
|
|
cfg.LCUrls, cfg.ACUrls = cURLs, cURLs
|
|
cfg.LPUrls, cfg.APUrls = pURLs, pURLs
|
|
cfg.InitialCluster = fmt.Sprintf("%s=%s", cfg.Name, pURLs[0].String())
|
|
cfg.Dir = filepath.Join(t.TempDir(), fmt.Sprint(time.Now().Nanosecond()))
|
|
|
|
sp := snapshot.NewV3(zaptest.NewLogger(t))
|
|
pss := make([]string, 0, len(pURLs))
|
|
for _, p := range pURLs {
|
|
pss = append(pss, p.String())
|
|
}
|
|
if err := sp.Restore(snapshot.RestoreConfig{
|
|
SnapshotPath: dbPath,
|
|
Name: cfg.Name,
|
|
OutputDataDir: cfg.Dir,
|
|
InitialCluster: cfg.InitialCluster,
|
|
InitialClusterToken: cfg.InitialClusterToken,
|
|
PeerURLs: pss,
|
|
}); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
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(3 * time.Second):
|
|
t.Fatalf("failed to start restored etcd member")
|
|
}
|
|
|
|
var cli *clientv3.Client
|
|
cli, err = clientv3.New(clientv3.Config{Endpoints: []string{cfg.ACUrls[0].String()}})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer cli.Close()
|
|
for i := range kvs {
|
|
var gresp *clientv3.GetResponse
|
|
gresp, err = cli.Get(context.Background(), kvs[i].k)
|
|
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))
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestSnapshotV3RestoreMulti ensures that multiple members
|
|
// can boot into the same cluster after being restored from a same
|
|
// snapshot file.
|
|
func TestSnapshotV3RestoreMulti(t *testing.T) {
|
|
kvs := []kv{{"foo1", "bar1"}, {"foo2", "bar2"}, {"foo3", "bar3"}}
|
|
dbPath := createSnapshotFile(t, kvs)
|
|
defer os.RemoveAll(dbPath)
|
|
|
|
clusterN := 3
|
|
cURLs, _, srvs := restoreCluster(t, clusterN, dbPath)
|
|
defer func() {
|
|
for i := 0; i < clusterN; i++ {
|
|
os.RemoveAll(srvs[i].Config().Dir)
|
|
srvs[i].Close()
|
|
}
|
|
}()
|
|
|
|
// wait for leader election
|
|
time.Sleep(time.Second)
|
|
|
|
for i := 0; i < clusterN; i++ {
|
|
cli, err := clientv3.New(clientv3.Config{Endpoints: []string{cURLs[i].String()}})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer cli.Close()
|
|
for i := range kvs {
|
|
var gresp *clientv3.GetResponse
|
|
gresp, err = cli.Get(context.Background(), kvs[i].k)
|
|
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))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestCorruptedBackupFileCheck tests if we can correctly identify a corrupted backup file.
|
|
func TestCorruptedBackupFileCheck(t *testing.T) {
|
|
dbPath := "testdata/corrupted_backup.db"
|
|
if _, err := os.Stat(dbPath); err != nil {
|
|
t.Fatalf("test file [%s] does not exist: %v", dbPath, err)
|
|
}
|
|
|
|
sp := snapshot.NewV3(zaptest.NewLogger(t))
|
|
_, err := sp.Status(dbPath)
|
|
expectedErrKeywords := "snapshot file integrity check failed"
|
|
/* example error message:
|
|
snapshot file integrity check failed. 2 errors found.
|
|
page 3: already freed
|
|
page 4: unreachable unfreed
|
|
*/
|
|
if err == nil {
|
|
t.Error("expected error due to corrupted snapshot file, got no error")
|
|
}
|
|
if !strings.Contains(err.Error(), expectedErrKeywords) {
|
|
t.Errorf("expected error message to contain the following keywords:\n%s\n"+
|
|
"actual error message:\n%s",
|
|
expectedErrKeywords, err.Error())
|
|
}
|
|
}
|
|
|
|
type kv struct {
|
|
k, v string
|
|
}
|
|
|
|
// creates a snapshot file and returns the file path.
|
|
func createSnapshotFile(t *testing.T, kvs []kv) string {
|
|
testutil.SkipTestIfShortMode(t,
|
|
"Snapshot creation tests are depending on embedded etcServer so are integration-level tests.")
|
|
clusterN := 1
|
|
urls := newEmbedURLs(clusterN * 2)
|
|
cURLs, pURLs := urls[:clusterN], urls[clusterN:]
|
|
|
|
cfg := embed.NewConfig()
|
|
cfg.Logger = "zap"
|
|
cfg.LogOutputs = []string{"/dev/null"}
|
|
cfg.Name = "default"
|
|
cfg.ClusterState = "new"
|
|
cfg.LCUrls, cfg.ACUrls = cURLs, cURLs
|
|
cfg.LPUrls, cfg.APUrls = pURLs, pURLs
|
|
cfg.InitialCluster = fmt.Sprintf("%s=%s", cfg.Name, pURLs[0].String())
|
|
cfg.Dir = filepath.Join(t.TempDir(), fmt.Sprint(time.Now().Nanosecond()))
|
|
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(3 * time.Second):
|
|
t.Fatalf("failed to start embed.Etcd for creating snapshots")
|
|
}
|
|
|
|
ccfg := clientv3.Config{Endpoints: []string{cfg.ACUrls[0].String()}}
|
|
cli, err := clientv3.New(ccfg)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer cli.Close()
|
|
for i := range kvs {
|
|
ctx, cancel := context.WithTimeout(context.Background(), testutil.RequestTimeout)
|
|
_, err = cli.Put(ctx, kvs[i].k, kvs[i].v)
|
|
cancel()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
sp := snapshot.NewV3(zaptest.NewLogger(t))
|
|
dpPath := filepath.Join(t.TempDir(), fmt.Sprintf("snapshot%d.db", time.Now().Nanosecond()))
|
|
if err = sp.Save(context.Background(), ccfg, dpPath); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
os.RemoveAll(cfg.Dir)
|
|
srv.Close()
|
|
return dpPath
|
|
}
|
|
|
|
const testClusterTkn = "tkn"
|
|
|
|
func restoreCluster(t *testing.T, clusterN int, dbPath string) (
|
|
cURLs []url.URL,
|
|
pURLs []url.URL,
|
|
srvs []*embed.Etcd) {
|
|
urls := newEmbedURLs(clusterN * 2)
|
|
cURLs, pURLs = urls[:clusterN], urls[clusterN:]
|
|
|
|
ics := ""
|
|
for i := 0; i < clusterN; i++ {
|
|
ics += fmt.Sprintf(",%d=%s", i, pURLs[i].String())
|
|
}
|
|
ics = ics[1:]
|
|
|
|
cfgs := make([]*embed.Config, clusterN)
|
|
for i := 0; i < clusterN; i++ {
|
|
cfg := embed.NewConfig()
|
|
cfg.Logger = "zap"
|
|
cfg.LogOutputs = []string{"/dev/null"}
|
|
cfg.Name = fmt.Sprintf("%d", i)
|
|
cfg.InitialClusterToken = testClusterTkn
|
|
cfg.ClusterState = "existing"
|
|
cfg.LCUrls, cfg.ACUrls = []url.URL{cURLs[i]}, []url.URL{cURLs[i]}
|
|
cfg.LPUrls, cfg.APUrls = []url.URL{pURLs[i]}, []url.URL{pURLs[i]}
|
|
cfg.InitialCluster = ics
|
|
cfg.Dir = filepath.Join(t.TempDir(), fmt.Sprint(time.Now().Nanosecond()+i))
|
|
|
|
sp := snapshot.NewV3(zaptest.NewLogger(t))
|
|
if err := sp.Restore(snapshot.RestoreConfig{
|
|
SnapshotPath: dbPath,
|
|
Name: cfg.Name,
|
|
OutputDataDir: cfg.Dir,
|
|
PeerURLs: []string{pURLs[i].String()},
|
|
InitialCluster: ics,
|
|
InitialClusterToken: cfg.InitialClusterToken,
|
|
}); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
cfgs[i] = cfg
|
|
}
|
|
|
|
sch := make(chan *embed.Etcd)
|
|
for i := range cfgs {
|
|
go func(idx int) {
|
|
srv, err := embed.StartEtcd(cfgs[idx])
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
<-srv.Server.ReadyNotify()
|
|
sch <- srv
|
|
}(i)
|
|
}
|
|
|
|
srvs = make([]*embed.Etcd, clusterN)
|
|
for i := 0; i < clusterN; i++ {
|
|
select {
|
|
case srv := <-sch:
|
|
srvs[i] = srv
|
|
case <-time.After(5 * time.Second):
|
|
t.Fatalf("#%d: failed to start embed.Etcd", i)
|
|
}
|
|
}
|
|
return cURLs, pURLs, srvs
|
|
}
|
|
|
|
// TODO: TLS
|
|
func newEmbedURLs(n int) (urls []url.URL) {
|
|
urls = make([]url.URL, n)
|
|
for i := 0; i < n; i++ {
|
|
rand.Seed(int64(time.Now().Nanosecond()))
|
|
u, _ := url.Parse(fmt.Sprintf("unix://localhost:%d", rand.Intn(45000)))
|
|
urls[i] = *u
|
|
}
|
|
return urls
|
|
}
|