*: use DDL subscriber updating stats meta

[Rustin170506]

What problem does this PR solve?

Issue Number: close #57871

Problem Summary:

What changed and how does it work?

In this PR, we began using the DDL notifier to handle all DDL events and update the stats meta accordingly.

To maintain the old behavior, we do not register it when the stats lease is less than 1. This means that we won't handle the DDL event for unit tests at all unless you explicitly handle it manually.

In the future, we might want to handle this in unit tests by default. However, doing so could disrupt many existing test cases. For now, I prefer to maintain the old behavior. I plan to migrate to the new approach eventually, but I currently don't have enough time to update all the tests that would break.

Check List

Tests

• Unit test
• Integration test
• Manual test
• 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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.9875%. Comparing base (d3add7c) to head (edcf843).
Report is 59 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #57872        +/-   ##
================================================
+ Coverage   73.2043%   74.9875%   +1.7832%     
================================================
  Files          1675       1723        +48     
  Lines        461929     472357     +10428     
================================================
+ Hits         338152     354209     +16057     
+ Misses       103014      95867      -7147     
- Partials      20763      22281      +1518     

Flag	Coverage Δ
integration	49.0646% <75.0000%> (?)
unit	72.3584% <86.9565%> (+0.0185%)	⬆️

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	61.5333% <ø> (+15.5575%)	⬆️

[Rustin170506]

/retest

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[tiprow]

@Rustin170506: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

• /test fast_test_tiprow
• /test fast_test_tiprow_ddlargsv1
• /test tidb_parser_test

Use /test all to run the following jobs that were automatically triggered:

• tidb_parser_test

In response to this:

/test unit-test

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[lance6716]

33 / 57 files viewed

[lance6716]

/hold

free to unhold

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, winoros

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

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [lance6716,winoros]
• pkg/ddl/OWNERS [lance6716]
• pkg/domain/OWNERS [lance6716]
• pkg/planner/OWNERS [winoros]
• pkg/statistics/OWNERS [winoros]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-11 11:13:54.865531586 +0000 UTC m=+437024.954334128: ☑️ agreed by winoros.
• 2024-12-13 06:17:21.336368756 +0000 UTC m=+592031.425171300: ☑️ agreed by lance6716.

[Rustin170506]

/unhold

[Rustin170506]

/retest

[Rustin170506]

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[Rustin170506]

/retest

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.5: #58387.