data race in telemetry_test.TestReport

[zhouqiang-cl]

Bug Report

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[2021-07-28T14:22:43.954Z] WARNING: DATA RACE
[2021-07-28T14:22:43.954Z] Write at 0x00c014605da1 by goroutine 72:
[2021-07-28T14:22:43.954Z]   github.com/pingcap/tidb/telemetry_test.TestReport()
[2021-07-28T14:22:43.954Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/telemetry/telemetry_test.go:112 +0x104
[2021-07-28T14:22:43.954Z]   testing.tRunner()
[2021-07-28T14:22:43.954Z]       /usr/local/go/src/testing/testing.go:1193 +0x202
[2021-07-28T14:22:43.954Z] 
[2021-07-28T14:22:43.954Z] Previous read at 0x00c014605da1 by goroutine 103:
[2021-07-28T14:22:43.954Z]   github.com/pingcap/tidb/session.(*session).ExecuteStmt()
[2021-07-28T14:22:43.954Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/session.go:1660 +0x13e5
[2021-07-28T14:22:43.955Z]   github.com/pingcap/tidb/testkit.(*TestKit).Exec()
[2021-07-28T14:22:43.955Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/testkit/testkit.go:106 +0x2dc
[2021-07-28T14:22:43.955Z]   github.com/pingcap/tidb/testkit.(*TestKit).MustExec()
[2021-07-28T14:22:43.955Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/testkit/testkit.go:60 +0x96
[2021-07-28T14:22:43.955Z]   github.com/pingcap/tidb/telemetry_test.TestTxnUsageInfo.func1()
[2021-07-28T14:22:43.955Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/telemetry/data_feature_usage_test.go:45 +0x364
[2021-07-28T14:22:43.955Z]   testing.tRunner()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1193 +0x202
[2021-07-28T14:22:43.955Z] 
[2021-07-28T14:22:43.955Z] Goroutine 72 (running) created at:
[2021-07-28T14:22:43.955Z]   testing.(*T).Run()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1238 +0x5d7
[2021-07-28T14:22:43.955Z]   testing.runTests.func1()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1511 +0xa6
[2021-07-28T14:22:43.955Z]   testing.tRunner()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1193 +0x202
[2021-07-28T14:22:43.955Z]   testing.runTests()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1509 +0x612
[2021-07-28T14:22:43.955Z]   testing.(*M).Run()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1417 +0x3b3
[2021-07-28T14:22:43.955Z]   go.uber.org/goleak.VerifyTestMain()
[2021-07-28T14:22:43.955Z]       /nfs/cache/mod/go.uber.org/goleak@v1.1.10/testmain.go:53 +0x5e
[2021-07-28T14:22:43.955Z]   github.com/pingcap/tidb/telemetry.TestMain()
[2021-07-28T14:22:43.955Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/telemetry/main_test.go:36 +0xe4
[2021-07-28T14:22:43.955Z]   main.main()
[2021-07-28T14:22:43.955Z]       _testmain.go:67 +0x271
[2021-07-28T14:22:43.955Z] 
[2021-07-28T14:22:43.955Z] Goroutine 103 (running) created at:
[2021-07-28T14:22:43.955Z]   testing.(*T).Run()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1238 +0x5d7
[2021-07-28T14:22:43.955Z]   github.com/pingcap/tidb/telemetry_test.TestTxnUsageInfo()
[2021-07-28T14:22:43.955Z]       /home/jenkins/agent/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/telemetry/data_feature_usage_test.go:36 +0x149
[2021-07-28T14:22:43.955Z]   testing.tRunner()
[2021-07-28T14:22:43.955Z]       /usr/local/go/src/testing/testing.go:1193 +0x202
[2021-07-28T14:22:43.955Z] ==================

1. Minimal reproduce step (Required)

in ci https://ci.pingcap.net/blue/rest/organizations/jenkins/pipelines/tidb_ghpr_unit_test/runs/8120/nodes/108/steps/276/log/?start=0

2. What did you expect to see? (Required)

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

[tisonkun]

possibly fixed by #26650 (comment)

[zhouqiang-cl]

No see it again

[ti-srebot]

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