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| 1 | +// Copyright 2017 The etcd Authors |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +package integration |
| 16 | + |
| 17 | +import ( |
| 18 | + "fmt" |
| 19 | + "os" |
| 20 | + "sync" |
| 21 | + "testing" |
| 22 | + "time" |
| 23 | + |
| 24 | + "github.com/coreos/etcd/etcdserver" |
| 25 | + "github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes" |
| 26 | + pb "github.com/coreos/etcd/etcdserver/etcdserverpb" |
| 27 | + "github.com/coreos/etcd/mvcc" |
| 28 | + "github.com/coreos/etcd/mvcc/backend" |
| 29 | + "github.com/coreos/etcd/pkg/testutil" |
| 30 | + "golang.org/x/net/context" |
| 31 | +) |
| 32 | + |
| 33 | +// TestV3StorageQuotaApply tests the V3 server respects quotas during apply |
| 34 | +func TestV3StorageQuotaApply(t *testing.T) { |
| 35 | + testutil.AfterTest(t) |
| 36 | + quotasize := int64(16 * os.Getpagesize()) |
| 37 | + |
| 38 | + clus := NewClusterV3(t, &ClusterConfig{Size: 2}) |
| 39 | + defer clus.Terminate(t) |
| 40 | + kvc0 := toGRPC(clus.Client(0)).KV |
| 41 | + kvc1 := toGRPC(clus.Client(1)).KV |
| 42 | + |
| 43 | + // Set a quota on one node |
| 44 | + clus.Members[0].QuotaBackendBytes = quotasize |
| 45 | + clus.Members[0].Stop(t) |
| 46 | + clus.Members[0].Restart(t) |
| 47 | + clus.waitLeader(t, clus.Members) |
| 48 | + waitForRestart(t, kvc0) |
| 49 | + |
| 50 | + key := []byte("abc") |
| 51 | + |
| 52 | + // test small put still works |
| 53 | + smallbuf := make([]byte, 1024) |
| 54 | + _, serr := kvc0.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}) |
| 55 | + if serr != nil { |
| 56 | + t.Fatal(serr) |
| 57 | + } |
| 58 | + |
| 59 | + // test big put |
| 60 | + bigbuf := make([]byte, quotasize) |
| 61 | + _, err := kvc1.Put(context.TODO(), &pb.PutRequest{Key: key, Value: bigbuf}) |
| 62 | + if err != nil { |
| 63 | + t.Fatal(err) |
| 64 | + } |
| 65 | + |
| 66 | + // quorum get should work regardless of whether alarm is raised |
| 67 | + _, err = kvc0.Range(context.TODO(), &pb.RangeRequest{Key: []byte("foo")}) |
| 68 | + if err != nil { |
| 69 | + t.Fatal(err) |
| 70 | + } |
| 71 | + |
| 72 | + // wait until alarm is raised for sure-- poll the alarms |
| 73 | + stopc := time.After(5 * time.Second) |
| 74 | + for { |
| 75 | + req := &pb.AlarmRequest{Action: pb.AlarmRequest_GET} |
| 76 | + resp, aerr := clus.Members[0].s.Alarm(context.TODO(), req) |
| 77 | + if aerr != nil { |
| 78 | + t.Fatal(aerr) |
| 79 | + } |
| 80 | + if len(resp.Alarms) != 0 { |
| 81 | + break |
| 82 | + } |
| 83 | + select { |
| 84 | + case <-stopc: |
| 85 | + t.Fatalf("timed out waiting for alarm") |
| 86 | + case <-time.After(10 * time.Millisecond): |
| 87 | + } |
| 88 | + } |
| 89 | + |
| 90 | + // small quota machine should reject put |
| 91 | + if _, err := kvc0.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err == nil { |
| 92 | + t.Fatalf("past-quota instance should reject put") |
| 93 | + } |
| 94 | + |
| 95 | + // large quota machine should reject put |
| 96 | + if _, err := kvc1.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err == nil { |
| 97 | + t.Fatalf("past-quota instance should reject put") |
| 98 | + } |
| 99 | + |
| 100 | + // reset large quota node to ensure alarm persisted |
| 101 | + clus.Members[1].Stop(t) |
| 102 | + clus.Members[1].Restart(t) |
| 103 | + clus.waitLeader(t, clus.Members) |
| 104 | + |
| 105 | + if _, err := kvc1.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err == nil { |
| 106 | + t.Fatalf("alarmed instance should reject put after reset") |
| 107 | + } |
| 108 | +} |
| 109 | + |
| 110 | +// TestV3AlarmDeactivate ensures that space alarms can be deactivated so puts go through. |
| 111 | +func TestV3AlarmDeactivate(t *testing.T) { |
| 112 | + clus := NewClusterV3(t, &ClusterConfig{Size: 3}) |
| 113 | + defer clus.Terminate(t) |
| 114 | + kvc := toGRPC(clus.RandClient()).KV |
| 115 | + mt := toGRPC(clus.RandClient()).Maintenance |
| 116 | + |
| 117 | + alarmReq := &pb.AlarmRequest{ |
| 118 | + MemberID: 123, |
| 119 | + Action: pb.AlarmRequest_ACTIVATE, |
| 120 | + Alarm: pb.AlarmType_NOSPACE, |
| 121 | + } |
| 122 | + if _, err := mt.Alarm(context.TODO(), alarmReq); err != nil { |
| 123 | + t.Fatal(err) |
| 124 | + } |
| 125 | + |
| 126 | + key := []byte("abc") |
| 127 | + smallbuf := make([]byte, 512) |
| 128 | + _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}) |
| 129 | + if err == nil && !eqErrGRPC(err, rpctypes.ErrGRPCNoSpace) { |
| 130 | + t.Fatalf("put got %v, expected %v", err, rpctypes.ErrGRPCNoSpace) |
| 131 | + } |
| 132 | + |
| 133 | + alarmReq.Action = pb.AlarmRequest_DEACTIVATE |
| 134 | + if _, err = mt.Alarm(context.TODO(), alarmReq); err != nil { |
| 135 | + t.Fatal(err) |
| 136 | + } |
| 137 | + |
| 138 | + if _, err = kvc.Put(context.TODO(), &pb.PutRequest{Key: key, Value: smallbuf}); err != nil { |
| 139 | + t.Fatal(err) |
| 140 | + } |
| 141 | +} |
| 142 | + |
| 143 | +type fakeConsistentIndex struct{ rev uint64 } |
| 144 | + |
| 145 | +func (f *fakeConsistentIndex) ConsistentIndex() uint64 { return f.rev } |
| 146 | + |
| 147 | +func TestV3CorruptAlarm(t *testing.T) { |
| 148 | + oldInvl := etcdserver.CorruptCheckInterval |
| 149 | + defer func() { etcdserver.CorruptCheckInterval = oldInvl }() |
| 150 | + etcdserver.CorruptCheckInterval = 2 * time.Second |
| 151 | + |
| 152 | + defer testutil.AfterTest(t) |
| 153 | + clus := NewClusterV3(t, &ClusterConfig{Size: 3}) |
| 154 | + defer clus.Terminate(t) |
| 155 | + |
| 156 | + var wg sync.WaitGroup |
| 157 | + wg.Add(10) |
| 158 | + for i := 0; i < 10; i++ { |
| 159 | + go func() { |
| 160 | + defer wg.Done() |
| 161 | + if _, err := clus.Client(i%3).Put(context.TODO(), "k", "v"); err != nil { |
| 162 | + t.Fatal(err) |
| 163 | + } |
| 164 | + }() |
| 165 | + } |
| 166 | + wg.Wait() |
| 167 | + |
| 168 | + // corrupt member 0 |
| 169 | + clus.Members[0].Stop(t) |
| 170 | + be := backend.NewDefaultBackend(clus.Members[0].DataDir + "/member/snap/db") |
| 171 | + s := mvcc.NewStore(be, nil, &fakeConsistentIndex{13}) |
| 172 | + if r, err := s.Range([]byte("k"), nil, mvcc.RangeOptions{}); err != nil || len(r.KVs) == 0 { |
| 173 | + t.Fatalf("key 'k' does not exist (%v)", err) |
| 174 | + } |
| 175 | + s.Put([]byte("abc"), []byte("def"), 0) |
| 176 | + s.Put([]byte("xyz"), []byte("123"), 0) |
| 177 | + s.Compact(5) |
| 178 | + s.Commit() |
| 179 | + s.Close() |
| 180 | + be.Close() |
| 181 | + |
| 182 | + clus.Client(1).Put(context.TODO(), "xyz", "321") |
| 183 | + clus.Client(1).Put(context.TODO(), "abc", "fed") |
| 184 | + |
| 185 | + // member 0 restarts into split brain |
| 186 | + clus.Members[0].Restart(t) |
| 187 | + |
| 188 | + resp0, err0 := clus.Client(0).Get(context.TODO(), "abc") |
| 189 | + if err0 != nil { |
| 190 | + t.Fatal(err0) |
| 191 | + } |
| 192 | + resp1, err1 := clus.Client(1).Get(context.TODO(), "abc") |
| 193 | + if err1 != nil { |
| 194 | + t.Fatal(err1) |
| 195 | + } |
| 196 | + |
| 197 | + if resp0.Kvs[0].ModRevision == resp1.Kvs[0].ModRevision { |
| 198 | + t.Fatalf("matching ModRevision values") |
| 199 | + } |
| 200 | + |
| 201 | + time.Sleep(3 * time.Second) |
| 202 | + |
| 203 | + presp, perr := clus.Client(0).Put(context.TODO(), "abc", "aaa") |
| 204 | + if perr == nil || !eqErrGRPC(perr, rpctypes.ErrCorrupt) { |
| 205 | + t.Fatalf("expected %v, got %+v (%v)", rpctypes.ErrCorrupt, presp, perr) |
| 206 | + } |
| 207 | +} |
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