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domain: make the transaction from initStatsCtx blocking gc (#53602) #53638

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This is an automated cherry-pick of #53602

What problem does this PR solve?

Issue Number: close #53592

Problem Summary:

The initStatsCtx is not get from internal session pool, so it's not tracked by min start ts service, thus gc lifetime can overtake it easily.

What changed and how does it work?

Insert it into tracked session table and it will block gc.

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.

I reproduce the test mentioned in issue, the stats are loaded successfully after 30min.

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.

fix a bug that tidb will report gc lifetime too short when tidb bootstrap with slow loading statistics

@ti-chi-bot ti-chi-bot added release-note Denotes a PR that will be considered when it comes time to generate release notes. sig/planner SIG: Planner size/M Denotes a PR that changes 30-99 lines, ignoring generated files. type/cherry-pick-for-release-8.1 This PR is cherry-picked to release-8.1 from a source PR. labels May 29, 2024
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codecov bot commented May 29, 2024

Codecov Report

Attention: Patch coverage is 95.65217% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1@76a23fd). Learn more about missing BASE report.

Additional details and impacted files
@@               Coverage Diff                @@
##             release-8.1     #53638   +/-   ##
================================================
  Coverage               ?   72.8458%           
================================================
  Files                  ?       1465           
  Lines                  ?     437174           
  Branches               ?          0           
================================================
  Hits                   ?     318463           
  Misses                 ?      98378           
  Partials               ?      20333           
Flag Coverage Δ
unit 72.8458% <95.6521%> (?)

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

Components Coverage Δ
dumpling 57.8032% <0.0000%> (?)
parser ∅ <0.0000%> (?)
br 41.1825% <0.0000%> (?)

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you06 commented May 31, 2024

@hawkingrei @lance6716 PTAL

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/approve

@ti-chi-bot ti-chi-bot bot added the approved label May 31, 2024
@ti-chi-bot ti-chi-bot added the cherry-pick-approved Cherry pick PR approved by release team. label Jul 26, 2024
@ti-chi-bot ti-chi-bot bot added the needs-1-more-lgtm Indicates a PR needs 1 more LGTM. label Aug 5, 2024
@ti-chi-bot ti-chi-bot bot added lgtm and removed needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Aug 5, 2024
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ti-chi-bot bot commented Aug 5, 2024

[LGTM Timeline notifier]

Timeline:

  • 2024-08-05 02:19:07.038087755 +0000 UTC m=+232076.905186843: ☑️ agreed by crazycs520.
  • 2024-08-05 02:20:43.834093812 +0000 UTC m=+232173.701192900: ☑️ agreed by cfzjywxk.

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cfzjywxk commented Aug 5, 2024

/retest

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ti-chi-bot bot commented Aug 5, 2024

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cfzjywxk, crazycs520, lance6716, MyonKeminta

The full list of commands accepted by this bot can be found here.

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cfzjywxk commented Aug 5, 2024

/retest

@ti-chi-bot ti-chi-bot bot merged commit fdcfb42 into pingcap:release-8.1 Aug 5, 2024
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@wuhuizuo wuhuizuo deleted the cherry-pick-53602-to-release-8.1 branch August 5, 2024 09:05
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6 participants