mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
126 lines
4.0 KiB
Go
126 lines
4.0 KiB
Go
// Copyright 2022 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 e2e
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
|
|
"go.etcd.io/etcd/client/pkg/v3/fileutil"
|
|
"go.etcd.io/etcd/tests/v3/framework/config"
|
|
"go.etcd.io/etcd/tests/v3/framework/e2e"
|
|
)
|
|
|
|
// TestMixVersionsSendSnapshot tests the mix version send snapshots
|
|
// TODO(ahrtr): add network partition scenario to trigger snapshots.
|
|
func TestMixVersionsSendSnapshot(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
clusterVersion e2e.ClusterVersion
|
|
newInstanceVersion e2e.ClusterVersion
|
|
}{
|
|
// etcd doesn't support adding a new member of old version into
|
|
// a cluster with higher version. For example, etcd cluster
|
|
// version is 3.6.x, then a new member of 3.5.x can't join the
|
|
// cluster. Please refer to link below,
|
|
// https://github.com/etcd-io/etcd/blob/3e903d0b12e399519a4013c52d4635ec8bdd6863/server/etcdserver/cluster_util.go#L222-L230
|
|
/*{
|
|
name: "etcd instance with last version receives snapshot from the leader with current version",
|
|
clusterVersion: e2e.CurrentVersion,
|
|
newInstaceVersion: e2e.LastVersion,
|
|
},*/
|
|
{
|
|
name: "etcd instance with current version receives snapshot from the leader with last version",
|
|
clusterVersion: e2e.LastVersion,
|
|
newInstanceVersion: e2e.CurrentVersion,
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
mixVersionsSnapshotTest(t, tc.clusterVersion, tc.newInstanceVersion)
|
|
})
|
|
}
|
|
}
|
|
|
|
func mixVersionsSnapshotTest(t *testing.T, clusterVersion, newInstanceVersion e2e.ClusterVersion) {
|
|
e2e.BeforeTest(t)
|
|
|
|
if !fileutil.Exist(e2e.BinPath.EtcdLastRelease) {
|
|
t.Skipf("%q does not exist", e2e.BinPath.EtcdLastRelease)
|
|
}
|
|
|
|
// Create an etcd cluster with 1 member
|
|
epc, err := e2e.NewEtcdProcessCluster(context.TODO(), t,
|
|
e2e.WithClusterSize(1),
|
|
e2e.WithSnapshotCount(10),
|
|
e2e.WithVersion(clusterVersion),
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("failed to start etcd cluster: %v", err)
|
|
}
|
|
defer func() {
|
|
if err := epc.Close(); err != nil {
|
|
t.Fatalf("failed to close etcd cluster: %v", err)
|
|
}
|
|
}()
|
|
|
|
// Write more than SnapshotCount entries to trigger at least a snapshot.
|
|
t.Log("Writing 20 keys to the cluster")
|
|
for i := 0; i < 20; i++ {
|
|
key := fmt.Sprintf("key-%d", i)
|
|
value := fmt.Sprintf("value-%d", i)
|
|
if err := epc.Client().Put(context.TODO(), key, value, config.PutOptions{}); err != nil {
|
|
t.Fatalf("failed to put %q, error: %v", key, err)
|
|
}
|
|
}
|
|
|
|
// start a new etcd instance, which will receive a snapshot from the leader.
|
|
newCfg := *epc.Cfg
|
|
newCfg.Version = newInstanceVersion
|
|
t.Log("Starting a new etcd instance")
|
|
if err := epc.StartNewProc(context.TODO(), &newCfg, t); err != nil {
|
|
t.Fatalf("failed to start the new etcd instance: %v", err)
|
|
}
|
|
defer epc.CloseProc(context.TODO(), nil)
|
|
|
|
// verify all nodes have exact same revision and hash
|
|
t.Log("Verify all nodes have exact same revision and hash")
|
|
assert.Eventually(t, func() bool {
|
|
hashKvs, err := epc.Client().HashKV(context.TODO(), 0)
|
|
if err != nil {
|
|
t.Logf("failed to get HashKV: %v", err)
|
|
return false
|
|
}
|
|
if len(hashKvs) != 2 {
|
|
t.Logf("expected 2 hashkv responses, but got: %d", len(hashKvs))
|
|
return false
|
|
}
|
|
|
|
if hashKvs[0].Header.Revision != hashKvs[1].Header.Revision {
|
|
t.Logf("Got different revisions, [%d, %d]", hashKvs[0].Header.Revision, hashKvs[1].Header.Revision)
|
|
return false
|
|
}
|
|
|
|
assert.Equal(t, hashKvs[0].Hash, hashKvs[1].Hash)
|
|
|
|
return true
|
|
}, 10*time.Second, 500*time.Millisecond)
|
|
}
|