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statistics: do not record historical stats meta if the table is locked (#57636) #57910

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This is an automated cherry-pick of #57636

What problem does this PR solve?

Issue Number: close #57628

Problem Summary:

What changed and how does it work?

We don't need to record the historical stats meta if the table is locked because all the information is stored in the locked tables.

So in this PR, we skip the record when the tables are locked.

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.

修复在 tidb_enable_historical_stats 开启并且锁定表统计信息的时候会出现的无效错误日志的问题
Fix the issue of invalid error logs that occur when `tidb_enable_historical_stats` is enabled and table statistics are locked

Signed-off-by: Rustin170506 <tech@rustin.me>
@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/S Denotes a PR that changes 10-29 lines, ignoring generated files. type/cherry-pick-for-release-8.5 This PR is cherry-picked to release-8.5 from a source PR. labels Dec 3, 2024
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Thanks! :shipit:

@ti-chi-bot ti-chi-bot bot added approved needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Dec 3, 2024
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@elsa0520 elsa0520 left a comment

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LGTM

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ti-chi-bot bot commented Dec 3, 2024

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: elsa0520, Rustin170506

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@ti-chi-bot ti-chi-bot bot added lgtm and removed needs-1-more-lgtm Indicates a PR needs 1 more LGTM. labels Dec 3, 2024
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ti-chi-bot bot commented Dec 3, 2024

[LGTM Timeline notifier]

Timeline:

  • 2024-12-03 05:18:05.032414614 +0000 UTC m=+1132072.652069128: ☑️ agreed by Rustin170506.
  • 2024-12-03 05:20:01.047495472 +0000 UTC m=+1132188.667149982: ☑️ agreed by elsa0520.

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codecov bot commented Dec 3, 2024

Codecov Report

Attention: Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.5@a3a2e73). Learn more about missing BASE report.

Additional details and impacted files
@@               Coverage Diff                @@
##             release-8.5     #57910   +/-   ##
================================================
  Coverage               ?   56.8562%           
================================================
  Files                  ?       1771           
  Lines                  ?     626802           
  Branches               ?          0           
================================================
  Hits                   ?     356376           
  Misses                 ?     246299           
  Partials               ?      24127           
Flag Coverage Δ
integration 36.8457% <71.4285%> (?)
unit 72.5228% <71.4285%> (?)

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

Components Coverage Δ
dumpling 52.9478% <0.0000%> (?)
parser ∅ <0.0000%> (?)
br 52.2270% <0.0000%> (?)

@ti-chi-bot ti-chi-bot bot added cherry-pick-approved Cherry pick PR approved by release team. and removed do-not-merge/cherry-pick-not-approved labels Dec 3, 2024
@ti-chi-bot ti-chi-bot bot merged commit c1e7f1b into pingcap:release-8.5 Dec 3, 2024
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3 participants