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Anthony Romano
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Aug 18, 2017
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| // Copyright 2017 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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| package integration | ||
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||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "sync" | ||
| "testing" | ||
| "time" | ||
|
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| "github.com/coreos/etcd/etcdserver" | ||
| "github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes" | ||
| pb "github.com/coreos/etcd/etcdserver/etcdserverpb" | ||
| "github.com/coreos/etcd/mvcc" | ||
| "github.com/coreos/etcd/mvcc/backend" | ||
| "github.com/coreos/etcd/pkg/testutil" | ||
| "golang.org/x/net/context" | ||
| ) | ||
|
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| // TestV3StorageQuotaApply tests the V3 server respects quotas during apply | ||
| func TestV3StorageQuotaApply(t *testing.T) { | ||
| testutil.AfterTest(t) | ||
| quotasize := int64(16 * os.Getpagesize()) | ||
|
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| clus := NewClusterV3(t, &ClusterConfig{Size: 2}) | ||
| defer clus.Terminate(t) | ||
| kvc0 := toGRPC(clus.Client(0)).KV | ||
| kvc1 := toGRPC(clus.Client(1)).KV | ||
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| // Set a quota on one node | ||
| clus.Members[0].QuotaBackendBytes = quotasize | ||
| clus.Members[0].Stop(t) | ||
| clus.Members[0].Restart(t) | ||
| clus.waitLeader(t, clus.Members) | ||
| waitForRestart(t, kvc0) | ||
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| key := []byte("abc") | ||
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| // test small put still works | ||
| smallbuf := make([]byte, 1024) | ||
| _, serr := kvc0.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}) | ||
| if serr != nil { | ||
| t.Fatal(serr) | ||
| } | ||
|
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| // test big put | ||
| bigbuf := make([]byte, quotasize) | ||
| _, err := kvc1.Put(context.TODO(), &pb.PutRequest{Key: key, Value: bigbuf}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| // quorum get should work regardless of whether alarm is raised | ||
| _, err = kvc0.Range(context.TODO(), &pb.RangeRequest{Key: []byte("foo")}) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
|
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| // wait until alarm is raised for sure-- poll the alarms | ||
| stopc := time.After(5 * time.Second) | ||
| for { | ||
| req := &pb.AlarmRequest{Action: pb.AlarmRequest_GET} | ||
| resp, aerr := clus.Members[0].s.Alarm(context.TODO(), req) | ||
| if aerr != nil { | ||
| t.Fatal(aerr) | ||
| } | ||
| if len(resp.Alarms) != 0 { | ||
| break | ||
| } | ||
| select { | ||
| case <-stopc: | ||
| t.Fatalf("timed out waiting for alarm") | ||
| case <-time.After(10 * time.Millisecond): | ||
| } | ||
| } | ||
|
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| // small quota machine should reject put | ||
| if _, err := kvc0.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err == nil { | ||
| t.Fatalf("past-quota instance should reject put") | ||
| } | ||
|
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| // large quota machine should reject put | ||
| if _, err := kvc1.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err == nil { | ||
| t.Fatalf("past-quota instance should reject put") | ||
| } | ||
|
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| // reset large quota node to ensure alarm persisted | ||
| clus.Members[1].Stop(t) | ||
| clus.Members[1].Restart(t) | ||
| clus.waitLeader(t, clus.Members) | ||
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| if _, err := kvc1.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err == nil { | ||
| t.Fatalf("alarmed instance should reject put after reset") | ||
| } | ||
| } | ||
|
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| // TestV3AlarmDeactivate ensures that space alarms can be deactivated so puts go through. | ||
| func TestV3AlarmDeactivate(t *testing.T) { | ||
| clus := NewClusterV3(t, &ClusterConfig{Size: 3}) | ||
| defer clus.Terminate(t) | ||
| kvc := toGRPC(clus.RandClient()).KV | ||
| mt := toGRPC(clus.RandClient()).Maintenance | ||
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| alarmReq := &pb.AlarmRequest{ | ||
| MemberID: 123, | ||
| Action: pb.AlarmRequest_ACTIVATE, | ||
| Alarm: pb.AlarmType_NOSPACE, | ||
| } | ||
| if _, err := mt.Alarm(context.TODO(), alarmReq); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
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| key := []byte("abc") | ||
| smallbuf := make([]byte, 512) | ||
| _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}) | ||
| if err == nil && !eqErrGRPC(err, rpctypes.ErrGRPCNoSpace) { | ||
| t.Fatalf("put got %v, expected %v", err, rpctypes.ErrGRPCNoSpace) | ||
| } | ||
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| alarmReq.Action = pb.AlarmRequest_DEACTIVATE | ||
| if _, err = mt.Alarm(context.TODO(), alarmReq); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
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| if _, err = kvc.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| } | ||
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| type fakeConsistentIndex struct{ rev uint64 } | ||
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| func (f *fakeConsistentIndex) ConsistentIndex() uint64 { return f.rev } | ||
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| func TestV3CorruptAlarm(t *testing.T) { | ||
| oldInvl := etcdserver.CorruptCheckInterval | ||
| defer func() { etcdserver.CorruptCheckInterval = oldInvl }() | ||
| etcdserver.CorruptCheckInterval = 2 * time.Second | ||
|
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| defer testutil.AfterTest(t) | ||
| clus := NewClusterV3(t, &ClusterConfig{Size: 3}) | ||
| defer clus.Terminate(t) | ||
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| var wg sync.WaitGroup | ||
| wg.Add(10) | ||
| for i := 0; i < 10; i++ { | ||
| go func() { | ||
| defer wg.Done() | ||
| if _, err := clus.Client(i%3).Put(context.TODO(), "k", "v"); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| }() | ||
| } | ||
| wg.Wait() | ||
|
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| // corrupt member 0 | ||
| clus.Members[0].Stop(t) | ||
| be := backend.NewDefaultBackend(clus.Members[0].DataDir + "/member/snap/db") | ||
| s := mvcc.NewStore(be, nil, &fakeConsistentIndex{13}) | ||
| if r, err := s.Range([]byte("k"), nil, mvcc.RangeOptions{}); err != nil || len(r.KVs) == 0 { | ||
| t.Fatalf("key 'k' does not exist (%v)", err) | ||
| } | ||
| s.Put([]byte("abc"), []byte("def"), 0) | ||
| s.Put([]byte("xyz"), []byte("123"), 0) | ||
| s.Compact(5) | ||
| s.Commit() | ||
| s.Close() | ||
| be.Close() | ||
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| clus.Client(1).Put(context.TODO(), "xyz", "321") | ||
| clus.Client(1).Put(context.TODO(), "abc", "fed") | ||
|
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| // member 0 restarts into split brain | ||
| clus.Members[0].Restart(t) | ||
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| resp0, err0 := clus.Client(0).Get(context.TODO(), "abc") | ||
| if err0 != nil { | ||
| t.Fatal(err0) | ||
| } | ||
| resp1, err1 := clus.Client(1).Get(context.TODO(), "abc") | ||
| if err1 != nil { | ||
| t.Fatal(err1) | ||
| } | ||
|
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| if resp0.Kvs[0].ModRevision == resp1.Kvs[0].ModRevision { | ||
| t.Fatalf("matching ModRevision values") | ||
| } | ||
|
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| time.Sleep(3 * time.Second) | ||
|
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| presp, perr := clus.Client(0).Put(context.TODO(), "abc", "aaa") | ||
| if perr == nil || !eqErrGRPC(perr, rpctypes.ErrCorrupt) { | ||
| t.Fatalf("expected %v, got %+v (%v)", rpctypes.ErrCorrupt, presp, perr) | ||
| } | ||
| } |
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