lightning: use 2 level split & scatter | tidb-test=release-8.1.2

[lance6716]

What problem does this PR solve?

Issue Number: close #xxx

Problem Summary:

What changed and how does it work?

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

[tiprow]

Hi @lance6716. Thanks for your PR.

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[lance6716]

/retest

[tiprow]

@lance6716: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

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/retest

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[Benjamin2037]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Benjamin2037, D3Hunter

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-18 09:57:07.774671447 +0000 UTC m=+955270.170893504: ☑️ agreed by D3Hunter.
• 2025-02-18 09:59:03.683788143 +0000 UTC m=+955386.080010205: ☑️ agreed by Benjamin2037.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Please upload report for BASE (feature/release-8.1-gsort-test@deb96da). Learn more about missing BASE report.

Additional details and impacted files

@@                         Coverage Diff                         @@
##             feature/release-8.1-gsort-test     #59609   +/-   ##
===================================================================
  Coverage                                  ?   71.2454%           
===================================================================
  Files                                     ?       1468           
  Lines                                     ?     424127           
  Branches                                  ?          0           
===================================================================
  Hits                                      ?     302171           
  Misses                                    ?     101438           
  Partials                                  ?      20518           

Flag	Coverage Δ
unit	71.2454% <0.0000%> (?)

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

Components	Coverage Δ
dumpling	52.9656% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	41.4504% <0.0000%> (?)

[lance6716]

/retest

[tiprow]

@lance6716: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

Details

In response to this:

/retest

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]

/retest

[tiprow]

@lance6716: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

Details

In response to this:

/retest

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.