ttl: only gc in leader to save performance

[lcwangchao]

What problem does this PR solve?

Issue Number: close #59357

What changed and how does it work?

Only run ttl DoGC and GetDelayMetricRecords in leader node

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

[lcwangchao]

/retest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.5699%. Comparing base (d7a8b67) to head (3715b95).
Report is 19 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #59358        +/-   ##
================================================
+ Coverage   73.0656%   73.5699%   +0.5043%     
================================================
  Files          1690       1690                
  Lines        467095     469606      +2511     
================================================
+ Hits         341286     345489      +4203     
+ Misses       104836     103130      -1706     
- Partials      20973      20987        +14     

Flag	Coverage Δ
integration	42.9068% <7.6923%> (?)
unit	72.3257% <100.0000%> (+0.0583%)	⬆️

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

Components	Coverage Δ
dumpling	52.6910% <ø> (ø)
parser	∅ <ø> (∅)
br	45.5144% <ø> (+0.0086%)	⬆️

[YangKeao]

LGTM

[bb7133]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bb7133, YangKeao

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

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Needs approval from an approver in each of these files:

• OWNERS [YangKeao,bb7133]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-11 04:08:45.049537752 +0000 UTC m=+329567.445759813: ☑️ agreed by YangKeao.
• 2025-02-11 06:34:26.259620007 +0000 UTC m=+338308.655842064: ☑️ agreed by bb7133.

[lcwangchao]

/retest

[lcwangchao]

/retest

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.5: #59469.
But this PR has conflicts, please resolve them!

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #59470.
But this PR has conflicts, please resolve them!

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #59471.
But this PR has conflicts, please resolve them!