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tests: add client failover on defrag test case in integration and e2e
Signed-off-by: Chao Chen <chaochn@amazon.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| // Copyright 2023 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" | ||
|
|
||
| "github.com/stretchr/testify/require" | ||
| "google.golang.org/grpc" | ||
| _ "google.golang.org/grpc/health" | ||
|
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| clientv3 "go.etcd.io/etcd/client/v3" | ||
| "go.etcd.io/etcd/tests/v3/framework/config" | ||
| "go.etcd.io/etcd/tests/v3/framework/e2e" | ||
| ) | ||
|
|
||
| const ( | ||
| // in sync with how kubernetes uses etcd | ||
| // https://github.com/kubernetes/kubernetes/blob/release-1.28/staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go#L59-L71 | ||
| keepaliveTime = 30 * time.Second | ||
| keepaliveTimeout = 10 * time.Second | ||
| dialTimeout = 20 * time.Second | ||
|
|
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| clientRuntime = 10 * time.Second | ||
| // expect no more than 5 failed requests | ||
| failedRequests = 5 | ||
| ) | ||
|
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| func TestFailover(t *testing.T) { | ||
| tcs := []struct { | ||
| name string | ||
| clusterOptions []e2e.EPClusterOption | ||
| failureInjector func(t *testing.T, clus *e2e.EtcdProcessCluster) | ||
| }{ | ||
| { | ||
| name: "defrag", | ||
| clusterOptions: []e2e.EPClusterOption{e2e.WithClusterSize(3), e2e.WithGoFailEnabled(true)}, | ||
| failureInjector: triggerDefrag, | ||
| }, | ||
| } | ||
|
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||
| for _, tc := range tcs { | ||
| t.Run(tc.name, func(t *testing.T) { | ||
| e2e.BeforeTest(t) | ||
| clus, cerr := e2e.NewEtcdProcessCluster(context.TODO(), t, tc.clusterOptions...) | ||
| require.NoError(t, cerr) | ||
| t.Cleanup(func() { clus.Stop() }) | ||
| endpoints := clus.EndpointsGRPC() | ||
|
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| cnt, success := 0, 0 | ||
| donec := make(chan struct{}) | ||
| errc := make(chan error, 1) | ||
|
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| go func() { | ||
| var lastErr error | ||
| var cc *clientv3.Client | ||
| defer func() { | ||
| if cc != nil { | ||
| cc.Close() | ||
| } | ||
| errc <- lastErr | ||
| close(donec) | ||
| close(errc) | ||
| }() | ||
| cc, cerr := clientv3.New(clientv3.Config{ | ||
| DialTimeout: dialTimeout, | ||
| DialKeepAliveTime: keepaliveTime, | ||
| DialKeepAliveTimeout: keepaliveTimeout, | ||
| Endpoints: endpoints, | ||
| DialOptions: []grpc.DialOption{ | ||
| grpc.WithDisableServiceConfig(), | ||
| grpc.WithDefaultServiceConfig(`{"loadBalancingPolicy": "round_robin", "healthCheckConfig": {"serviceName": ""}}`), | ||
| }, | ||
| }) | ||
| require.NoError(t, cerr) | ||
| timeout := time.After(clientRuntime) | ||
|
|
||
| for { | ||
| select { | ||
| case <-timeout: | ||
| return | ||
| default: | ||
| } | ||
| cctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond) | ||
| _, err := cc.Get(cctx, "health") | ||
| cancel() | ||
| cnt++ | ||
| if err != nil { | ||
| lastErr = err | ||
| continue | ||
| } | ||
| success++ | ||
| } | ||
| }() | ||
|
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| tc.failureInjector(t, clus) | ||
|
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| <-donec | ||
| err, ok := <-errc | ||
| if ok && err != nil { | ||
| t.Logf("etcd client failed to fail over, error (%v)", err) | ||
| } | ||
| t.Logf("request failure rate is %.2f%%, traffic volume success %d requests, total %d requests", (1-float64(success)/float64(cnt))*100, success, cnt) | ||
| // expect no more than 5 failed requests | ||
| require.InDelta(t, cnt, success, failedRequests) | ||
| }) | ||
| } | ||
| } | ||
|
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| func triggerDefrag(t *testing.T, clus *e2e.EtcdProcessCluster) { | ||
| err := clus.Procs[0].Failpoints().Setup(context.Background(), "defragBeforeCopy", `sleep(8000)`) | ||
| require.NoError(t, err) | ||
| err = clus.Procs[0].Etcdctl().Defragment(context.Background(), config.DefragOption{Timeout: time.Minute}) | ||
| require.NoError(t, err) | ||
| } |
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