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Backport ignore old leader's leases revoking request
Backport of PR etcd-io#16822, commits f7e488d, 67f1716, and f7ff898. Co-authored-by: Benjamin Wang <[email protected]> Signed-off-by: Ivan Valdes <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,156 @@ | ||
| // Copyright 2024 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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| //go:build !cluster_proxy | ||
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| package e2e | ||
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| import ( | ||
| "context" | ||
| "testing" | ||
| "time" | ||
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| "github.com/stretchr/testify/require" | ||
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| "go.etcd.io/etcd/clientv3" | ||
| "go.etcd.io/etcd/pkg/testutil" | ||
| ) | ||
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| // TestLeaseRevoke_IgnoreOldLeader verifies that leases shouldn't be revoked | ||
| // by old leader. | ||
| // See the case 1 in https://github.com/etcd-io/etcd/issues/15247#issuecomment-1777862093. | ||
| func TestLeaseRevoke_IgnoreOldLeader(t *testing.T) { | ||
| testLeaseRevokeIssue(t, true) | ||
| } | ||
|
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| // TestLeaseRevoke_ClientSwitchToOtherMember verifies that leases shouldn't | ||
| // be revoked by new leader. | ||
| // See the case 2 in https://github.com/etcd-io/etcd/issues/15247#issuecomment-1777862093. | ||
| func TestLeaseRevoke_ClientSwitchToOtherMember(t *testing.T) { | ||
| testLeaseRevokeIssue(t, false) | ||
| } | ||
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| func testLeaseRevokeIssue(t *testing.T, connectToOneFollower bool) { | ||
| defer testutil.AfterTest(t) | ||
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| ctx := context.Background() | ||
|
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| t.Log("Starting a new etcd cluster") | ||
| epc, err := newEtcdProcessCluster(t, &etcdProcessClusterConfig{ | ||
| clusterSize: 3, | ||
| goFailEnabled: true, | ||
| goFailClientTimeout: 40 * time.Second, | ||
| }) | ||
| require.NoError(t, err) | ||
| defer func() { | ||
| if errC := epc.Close(); errC != nil { | ||
| t.Fatalf("error closing etcd processes (%v)", errC) | ||
| } | ||
| }() | ||
|
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| leaderIdx := epc.WaitLeader(t) | ||
| t.Logf("Leader index: %d", leaderIdx) | ||
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| epsForNormalOperations := epc.procs[(leaderIdx+2)%3].EndpointsGRPC() | ||
| t.Logf("Creating a client for normal operations: %v", epsForNormalOperations) | ||
| client, err := clientv3.New(clientv3.Config{Endpoints: epsForNormalOperations, DialTimeout: 3 * time.Second}) | ||
| require.NoError(t, err) | ||
| defer client.Close() | ||
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| var epsForLeaseKeepAlive []string | ||
| if connectToOneFollower { | ||
| epsForLeaseKeepAlive = epc.procs[(leaderIdx+1)%3].EndpointsGRPC() | ||
| } else { | ||
| epsForLeaseKeepAlive = epc.EndpointsGRPC() | ||
| } | ||
| t.Logf("Creating a client for the leaseKeepAlive operation: %v", epsForLeaseKeepAlive) | ||
| clientForKeepAlive, err := clientv3.New(clientv3.Config{Endpoints: epsForLeaseKeepAlive, DialTimeout: 3 * time.Second}) | ||
| require.NoError(t, err) | ||
| defer clientForKeepAlive.Close() | ||
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| resp, err := client.Status(ctx, epsForNormalOperations[0]) | ||
| require.NoError(t, err) | ||
| oldLeaderId := resp.Leader | ||
|
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| t.Log("Creating a new lease") | ||
| leaseRsp, err := client.Grant(ctx, 20) | ||
| require.NoError(t, err) | ||
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| t.Log("Starting a goroutine to keep alive the lease") | ||
| doneC := make(chan struct{}) | ||
| stopC := make(chan struct{}) | ||
| startC := make(chan struct{}, 1) | ||
| go func() { | ||
| defer close(doneC) | ||
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| respC, kerr := clientForKeepAlive.KeepAlive(ctx, leaseRsp.ID) | ||
| require.NoError(t, kerr) | ||
| // ensure we have received the first response from the server | ||
| <-respC | ||
| startC <- struct{}{} | ||
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| for { | ||
| select { | ||
| case <-stopC: | ||
| return | ||
| case <-respC: | ||
| } | ||
| } | ||
| }() | ||
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| t.Log("Wait for the keepAlive goroutine to get started") | ||
| <-startC | ||
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| t.Log("Trigger the failpoint to simulate stalled writing") | ||
| err = epc.procs[leaderIdx].Failpoints().SetupHTTP(ctx, "raftBeforeSave", `sleep("30s")`) | ||
| require.NoError(t, err) | ||
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| cctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) | ||
| t.Logf("Waiting for a new leader to be elected, old leader index: %d, old leader ID: %d", leaderIdx, oldLeaderId) | ||
| executeUntil(cctx, t, func() { | ||
| for { | ||
| resp, err = client.Status(ctx, epsForNormalOperations[0]) | ||
| if err == nil && resp.Leader != oldLeaderId { | ||
| t.Logf("A new leader has already been elected, new leader index: %d", resp.Leader) | ||
| return | ||
| } | ||
| time.Sleep(100 * time.Millisecond) | ||
| } | ||
| }) | ||
| cancel() | ||
|
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| t.Log("Writing a key/value pair") | ||
| _, err = client.Put(ctx, "foo", "bar") | ||
| require.NoError(t, err) | ||
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| t.Log("Sleeping 30 seconds") | ||
| time.Sleep(30 * time.Second) | ||
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| t.Log("Remove the failpoint 'raftBeforeSave'") | ||
| err = epc.procs[leaderIdx].Failpoints().DeactivateHTTP(ctx, "raftBeforeSave") | ||
| require.NoError(t, err) | ||
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| // By default, etcd tries to revoke leases every 7 seconds. | ||
| t.Log("Sleeping 10 seconds") | ||
| time.Sleep(10 * time.Second) | ||
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| t.Log("Confirming the lease isn't revoked") | ||
| leases, err := client.Leases(ctx) | ||
| require.NoError(t, err) | ||
| require.Equal(t, 1, len(leases.Leases)) | ||
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| t.Log("Waiting for the keepAlive goroutine to exit") | ||
| close(stopC) | ||
| <-doneC | ||
| } |