Test case bindinfo.TestCaptureUserFilter data race

[tiancaiamao]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Found in CI

https://do.pingcap.net/jenkins/blue/organizations/jenkins/pingcap%2Ftidb%2Fghpr_unit_test/detail/ghpr_unit_test/7755/tests

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

No data race

3. What did you see instead (Required)

==================
WARNING: DATA RACE
Write at 0x00c005616210 by goroutine 114:
  runtime.mapassign_faststr()
      GOROOT/src/runtime/map_faststr.go:203 +0x0
  github.com/pingcap/tidb/util/stmtsummary.(*stmtSummaryByDigestElement).add()
      util/stmtsummary/statement_summary.go:665 +0x166
  github.com/pingcap/tidb/util/stmtsummary.(*stmtSummaryByDigest).add()
      util/stmtsummary/statement_summary.go:573 +0xb2
  github.com/pingcap/tidb/util/stmtsummary.(*stmtSummaryByDigestMap).AddStatement()
      util/stmtsummary/statement_summary.go:340 +0x590
  github.com/pingcap/tidb/executor.(*ExecStmt).SummaryStmt()
      executor/adapter.go:1795 +0x1bf1
  github.com/pingcap/tidb/executor.(*ExecStmt).FinishExecuteStmt()
      executor/adapter.go:1364 +0x7de
  github.com/pingcap/tidb/executor.(*ExecStmt).CloseRecordSet()
      executor/adapter.go:1394 +0x64
  github.com/pingcap/tidb/executor.(*recordSet).Close()
      executor/adapter.go:183 +0xcb
  github.com/pingcap/tidb/session.(*execStmtResult).Close()
      session/session.go:2381 +0x7e
  github.com/pingcap/tidb/testkit.(*TestKit).MustExecWithContext()
      testkit/testkit.go:132 +0x28f
  github.com/pingcap/tidb/testkit.(*TestKit).MustExec()
      testkit/testkit.go:122 +0xf7
  github.com/pingcap/tidb/bindinfo_test.TestCaptureUserFilter()
      bindinfo/capture_test.go:643 +0xb5a
  github.com/pingcap/tidb/session.runStmt()
      session/session.go:2326 +0x85c
  github.com/pingcap/tidb/session.(*session).ExecuteStmt()
      session/session.go:2190 +0x1266
  github.com/pingcap/tidb/testkit.(*TestKit).ExecWithContext()
      testkit/testkit.go:295 +0x84e
  github.com/pingcap/tidb/testkit.(*TestKit).MustExecWithContext()
      testkit/testkit.go:127 +0xb7
  github.com/pingcap/tidb/testkit.(*TestKit).MustExec()
      testkit/testkit.go:122 +0xf7
  github.com/pingcap/tidb/bindinfo_test.TestCaptureUserFilter()
      bindinfo/capture_test.go:611 +0xd0
  github.com/pingcap/tidb/domain.(*Domain).rebuildSysVarCache()
      domain/sysvar_cache.go:146 +0x73c
  github.com/pingcap/tidb/domain.(*Domain).LoadSysVarCacheLoop()
      domain/domain.go:1359 +0xb9
  github.com/pingcap/tidb/session.BootstrapSession()
      session/session.go:2984 +0x78c
  github.com/pingcap/tidb/domain.(*Domain).GetSessionCache()
      domain/sysvar_cache.go:62 +0x6a
  github.com/pingcap/tidb/session.(*session).loadCommonGlobalVariablesIfNeeded()
      session/session.go:3233 +0x11e
  github.com/pingcap/tidb/session.(*session).ExecuteStmt()
      session/session.go:2105 +0x2fb
  github.com/pingcap/tidb/session.(*session).ExecuteInternal()
      session/session.go:1668 +0x4eb
  github.com/pingcap/tidb/domain.(*Domain).LoadPrivilegeLoop()
      domain/domain.go:1301 +0x143
  github.com/pingcap/tidb/session.BootstrapSession()
      session/session.go:2977 +0x72c
  github.com/pingcap/tidb/testkit.bootstrap()
      testkit/mockstore.go:83 +0x7b
  github.com/pingcap/tidb/testkit.CreateMockStoreAndDomain()
      testkit/mockstore.go:69 +0xd0
  github.com/pingcap/tidb/bindinfo_test.TestCaptureUserFilter()
      bindinfo/capture_test.go:607 +0x58
  testing.tRunner()
      GOROOT/src/testing/testing.go:1446 +0x216
  testing.(*T).Run.func1()
      GOROOT/src/testing/testing.go:1493 +0x47
Previous read at 0x00c005616210 by goroutine 14476:
  runtime.mapiternext()
      GOROOT/src/runtime/map.go:866 +0x0
  github.com/pingcap/tidb/bindinfo.(*BindHandle).CaptureBaselines()
      bindinfo/handle.go:876 +0xfd3
  github.com/pingcap/tidb/domain.(*Domain).globalBindHandleWorkerLoop.func1()
      domain/domain.go:1476 +0x519
Goroutine 114 (running) created at:
  testing.(*T).Run()
      GOROOT/src/testing/testing.go:1493 +0x75d
  testing.runTests.func1()
      GOROOT/src/testing/testing.go:1846 +0x99
  testing.tRunner()
      GOROOT/src/testing/testing.go:1446 +0x216
  testing.runTests()
      GOROOT/src/testing/testing.go:1844 +0x7ec
  testing.(*M).Run()
      GOROOT/src/testing/testing.go:1726 +0xa84
  go.uber.org/goleak.VerifyTestMain()
      external/org_uber_go_goleak/testmain.go:53 +0x70
  github.com/pingcap/tidb/bindinfo_test.TestMain()
      bindinfo/main_test.go:32 +0x43c
  main.main()
      bazel-out/k8-fastbuild/bin/bindinfo/bindinfo_test_/testmain.go:268 +0x7c9
Goroutine 14476 (running) created at:
  github.com/pingcap/tidb/domain.(*Domain).globalBindHandleWorkerLoop()
      domain/domain.go:1450 +0x10a
  github.com/pingcap/tidb/domain.(*Domain).LoadBindInfoLoop()
      domain/domain.go:1443 +0x1f5
  github.com/pingcap/tidb/session.BootstrapSession()
      session/session.go:2971 +0x688
  github.com/pingcap/tidb/testkit.bootstrap()
      testkit/mockstore.go:83 +0x7b
  github.com/pingcap/tidb/testkit.CreateMockStoreAndDomain()
      testkit/mockstore.go:69 +0xd0
  github.com/pingcap/tidb/bindinfo_test.TestCaptureUserFilter()
      bindinfo/capture_test.go:607 +0x58
  testing.tRunner()
      GOROOT/src/testing/testing.go:1446 +0x216
  testing.(*T).Run.func1()
      GOROOT/src/testing/testing.go:1493 +0x47
==================

4. What is your TiDB version? (Required)

#39041