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ddl: fix race in table lock config #10848

Merged
merged 4 commits into from
Jun 20, 2019
Merged

ddl: fix race in table lock config #10848

merged 4 commits into from
Jun 20, 2019

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crazycs520
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What problem does this PR solve?

Fix data race in test.

==================
warning: data race
read at 0x000003fe1bf2 by goroutine 252:
  github.com/pingcap/tidb/planner/core.checktablelock()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/config/config.go:586 +0x82
  github.com/pingcap/tidb/planner.optimize()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/planner/optimize.go:53 +0x4d5
  github.com/pingcap/tidb/executor.(*compiler).compile()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/executor/compiler.go:78 +0x268
  github.com/pingcap/tidb/session.(*session).execute()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/executor/compiler.go:55 +0x82f
  github.com/pingcap/tidb/session.(*session).execute()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/session/session.go:1015 +0xd4
  github.com/pingcap/tidb/ddl/util.completedeleterange()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/ddl/util/util.go:107 +0x190
  github.com/pingcap/tidb/ddl.(*delrange).dotask()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/ddl/delete_range.go:223 +0x693
  github.com/pingcap/tidb/ddl.(*delrange).dodelrangework()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/ddl/delete_range.go:177 +0x5a5
  github.com/pingcap/tidb/ddl.(*delrange).startemulator()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/ddl/delete_range.go:141 +0x204

previous write at 0x000003fe1bf2 by goroutine 480:
  github.com/pingcap/tidb/ddl_test.(*testdbsuite2).testconcurrentlocktables()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/ddl/db_test.go:2979 +0x44d
  github.com/pingcap/tidb/ddl_test.(*testdbsuite2).testconcurrentlocktables()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/src/github.com/pingcap/tidb/ddl/db_test.go:2969 +0x359
  runtime.call32()
      /usr/local/go/src/runtime/asm_amd64.s:519 +0x3a
  reflect.value.call()
      /usr/local/go/src/reflect/value.go:308 +0xc0
  github.com/pingcap/check.(*suiterunner).forktest.func1()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/pkg/mod/github.com/pingcap/[email protected]/check.go:836 +0x9fc
  github.com/pingcap/check.(*suiterunner).forkcall.func1()
      /home/jenkins/workspace/tidb_ghpr_unit_test/go/pkg/mod/github.com/pingcap/[email protected]/check.go:730 +0xb7

What is changed and how it works?

Check List

Tests

  • No code

Code changes

@crazycs520
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/run-all-tests

zimulala
zimulala reviewed Jun 19, 2019
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LGTM

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codecov bot commented Jun 19, 2019 •
edited
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Codecov Report

Merging #10848 into master will increase coverage by 0.0342%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##             master     #10848        +/-   ##
================================================
+ Coverage   80.8472%   80.8814%   +0.0342%     
================================================
  Files           419        419                
  Lines         88640      88668        +28     
================================================
+ Hits          71663      71716        +53     
+ Misses        11750      11726        -24     
+ Partials       5227       5226         -1

@crazycs520
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/run-all-tests

XuHuaiyu
XuHuaiyu previously approved these changes Jun 19, 2019
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LGTM

@crazycs520
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/run-all-tests

@crazycs520
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/run-all-tests

@winkyao winkyao merged commit e4204df into pingcap:master Jun 20, 2019
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winkyao commented Jun 20, 2019

LGTM

zimulala added a commit that referenced this pull request Jun 20, 2019
@zimulala
Revert "ddl: fix race in table lock config (#10848)"
afa0ca4 
This reverts commit e4204df.
@zimulala zimulala mentioned this pull request Jun 20, 2019
Closed
marsishandsome pushed a commit to marsishandsome/tidb that referenced this pull request Jul 24, 2019
@crazycs520 @marsishandsome
ddl: fix race in table lock config (pingcap#10848)
b85d989
lzmhhh123 pushed a commit to lzmhhh123/tidb that referenced this pull request Jan 19, 2020
@crazycs520 @lzmhhh123
ddl: fix race in table lock config (pingcap#10848)
ba7777a
crazycs520 added a commit to crazycs520/tidb that referenced this pull request Apr 28, 2020
@crazycs520
ddl: fix race in table lock config (pingcap#10848)
37f1a21
@crazycs520 crazycs520 mentioned this pull request Apr 28, 2020
Merged
bb7133 pushed a commit that referenced this pull request Apr 28, 2020
@crazycs520
lock: add delay clean table lock when session close (#10848) (#11038) (…
a072269 
…#16878)
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@zimulala zimulala zimulala left review comments

@winkyao winkyao winkyao approved these changes

@XuHuaiyu XuHuaiyu XuHuaiyu left review comments

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@crazycs520 @winkyao @zimulala @XuHuaiyu