lightning: remove alter table lock

[D3Hunter]

What problem does this PR solve?

Issue Number: close #50105

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  import large mount of tables(each table is about several tens of MB), after this pr, we can import from 674 tables/h/instance -> 809. Since TiDB still handle alter table in serial internally, the speedup is not that obvious. Note we are importing using 10 lightning, some instance have more improvement
• 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

[tiprow]

Hi @D3Hunter. Thanks for your PR.

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[codecov]

Codecov Report

Merging #50074 (d563285) into master (6f32664) will increase coverage by 10.5483%.
Report is 16 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #50074         +/-   ##
=================================================
+ Coverage   71.8820%   82.4304%   +10.5483%     
=================================================
  Files          1439       2444       +1005     
  Lines        346160     673313     +327153     
=================================================
+ Hits         248827     555015     +306188     
- Misses        77058      97285      +20227     
- Partials      20275      21013        +738     

Flag	Coverage Δ
integration	50.3180% <ø> (?)
unit	79.2725% <ø> (+7.3904%)	⬆️

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

Components	Coverage Δ
dumpling	73.6130% <ø> (+17.3001%)	⬆️
parser	∅ <ø> (∅)
br	75.2542% <ø> (+23.7952%)	⬆️

[D3Hunter]

/test pull-lightning-integration-test

[D3Hunter]

/hold

to wait lightning ci

[tiprow]

@D3Hunter: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/test pull-lightning-integration-test

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[Benjamin2037]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Benjamin2037, lance6716

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• br/pkg/lightning/OWNERS [Benjamin2037,lance6716]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-01-05 03:40:44.830046269 +0000 UTC m=+2401135.867273181: ☑️ agreed by lance6716.
• 2024-01-05 03:42:48.328448651 +0000 UTC m=+2401259.365675577: ☑️ agreed by Benjamin2037.

[D3Hunter]

ci pass
https://do.pingcap.net/jenkins/blue/organizations/jenkins/pingcap%2Ftidb%2Fpull_lightning_integration_test/detail/pull_lightning_integration_test/14/

[D3Hunter]

/unhold

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #50116.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #50117.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #50118.