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tikvclient: fix a bug that double close channels. (#10991)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| // Copyright 2019 PingCAP, Inc. | ||
| // | ||
| // 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, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package tikv | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| . "github.com/pingcap/check" | ||
| "github.com/pingcap/failpoint" | ||
| "github.com/pingcap/kvproto/pkg/tikvpb" | ||
| "github.com/pingcap/tidb/config" | ||
| "github.com/pingcap/tidb/store/tikv/tikvrpc" | ||
| ) | ||
|
|
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| func setGrpcConnectionCount(count uint) { | ||
| config.GetGlobalConfig().TiKVClient.GrpcConnectionCount = count | ||
| } | ||
|
|
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| func (s *testClientSuite) TestPanicInRecvLoop(c *C) { | ||
| c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/tikv/panicInFailPendingRequests", `panic`), IsNil) | ||
| c.Assert(failpoint.Enable("github.com/pingcap/tidb/store/tikv/gotErrorInRecvLoop", `return("0")`), IsNil) | ||
|
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| server, port := startMockTikvService() | ||
| c.Assert(port > 0, IsTrue) | ||
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| grpcConnectionCount := config.GetGlobalConfig().TiKVClient.GrpcConnectionCount | ||
| setGrpcConnectionCount(1) | ||
| addr := fmt.Sprintf("%s:%d", "127.0.0.1", port) | ||
| rpcClient := newRPCClient(config.Security{}) | ||
|
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| // Start batchRecvLoop, and it should panic in `failPendingRequests`. | ||
| _, err := rpcClient.getConnArray(addr) | ||
| c.Assert(err, IsNil) | ||
|
|
||
| time.Sleep(time.Second) | ||
| c.Assert(failpoint.Disable("github.com/pingcap/tidb/store/tikv/panicInFailPendingRequests"), IsNil) | ||
| c.Assert(failpoint.Disable("github.com/pingcap/tidb/store/tikv/gotErrorInRecvLoop"), IsNil) | ||
|
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| req := &tikvrpc.Request{ | ||
| Type: tikvrpc.CmdEmpty, | ||
| Empty: &tikvpb.BatchCommandsEmptyRequest{}, | ||
| } | ||
| _, err = rpcClient.SendRequest(context.Background(), addr, req, time.Second) | ||
| c.Assert(err, IsNil) | ||
| server.Stop() | ||
| setGrpcConnectionCount(grpcConnectionCount) | ||
| } |
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