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domain: fix data race in runaway DeriveChecker #49354

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merged 2 commits into from
Dec 12, 2023

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glorv
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@glorv glorv commented Dec 12, 2023

What problem does this PR solve?

Issue Number: close #49351

Problem Summary:

What changed and how does it work?

Change map to SyncMap to avoid data race.

Check List

Tests

  • Unit test
  • Integration test
  • Manual test (add detailed scripts or steps below)
  • No need to test
    • I checked and no code files have been changed.

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • Affects user behaviors
  • Contains syntax changes
  • Contains variable changes
  • Contains experimental features
  • Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

@ti-chi-bot ti-chi-bot bot added needs-cherry-pick-release-7.5 release-note-none size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Dec 12, 2023
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Hi @glorv. Thanks for your PR.

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/ok-to-test

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codecov bot commented Dec 12, 2023

Codecov Report

Merging #49354 (95d9c0a) into master (ba55c98) will increase coverage by 0.7883%.
Report is 2 commits behind head on master.
The diff coverage is 33.3333%.

Additional details and impacted files
@@               Coverage Diff                @@
##             master     #49354        +/-   ##
================================================
+ Coverage   71.0537%   71.8421%   +0.7883%     
================================================
  Files          1368       1411        +43     
  Lines        401803     414527     +12724     
================================================
+ Hits         285496     297805     +12309     
- Misses        96449      97913      +1464     
+ Partials      19858      18809      -1049     
Flag Coverage Δ
integration 43.7318% <33.3333%> (?)
unit 71.0535% <ø> (-0.0003%) ⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components Coverage Δ
dumpling 53.9663% <ø> (ø)
parser ∅ <ø> (∅)
br 47.7229% <ø> (-5.2359%) ⬇️

@@ -191,7 +192,7 @@ type RunawayManager struct {
// activeGroup is used to manage the active runaway watches of resource group
activeGroup map[string]int64
activeLock sync.RWMutex
metricsMap map[string]prometheus.Counter
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Please remember to run make bazel_prepare.

@ti-chi-bot ti-chi-bot bot added size/S Denotes a PR that changes 10-29 lines, ignoring generated files. and removed size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Dec 12, 2023
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ti-chi-bot bot commented Dec 12, 2023

[LGTM Timeline notifier]

Timeline:

  • 2023-12-12 02:59:35.580625848 +0000 UTC m=+325066.617852787: ☑️ agreed by hawkingrei.
  • 2023-12-12 03:28:38.657542677 +0000 UTC m=+326809.694769601: ☑️ agreed by nolouch.

Signed-off-by: Weizhen Wang <wangweizhen@pingcap.com>
@ti-chi-bot ti-chi-bot bot added the approved label Dec 12, 2023
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ti-chi-bot bot commented Dec 12, 2023

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CabinfeverB, hawkingrei, lance6716, nolouch

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@ti-chi-bot ti-chi-bot bot merged commit 0b39f99 into pingcap:master Dec 12, 2023
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In response to a cherrypick label: new pull request created to branch release-7.5: #49358.

ti-chi-bot pushed a commit to ti-chi-bot/tidb that referenced this pull request Dec 12, 2023
Signed-off-by: ti-chi-bot <ti-community-prow-bot@tidb.io>
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Successfully merging this pull request may close these issues.

DATA RACE in the RunawayManager.metricsMap
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