ingest: retry failed regions when batch scatter regions (#61722)

[ti-chi-bot]

This is an automated cherry-pick of #61722

What problem does this PR solve?

Issue Number: close #60077

Problem Summary:

What changed and how does it work?

• retry failed regions when batch scatter regions
• cherrypick lightning: added retry times and two new retry reasons | tidb-test=release-8.1.2 #60839

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

[ti-chi-bot]

@GMHDBJD This PR has conflicts, I have hold it.
Please resolve them or ask others to resolve them, then comment /unhold to remove the hold label.

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-07-11 07:40:20.066295907 +0000 UTC m=+2244672.789474891: ☑️ agreed by GMHDBJD.
• 2025-07-11 07:44:26.03899235 +0000 UTC m=+2244918.762171331: ☑️ agreed by tangenta.

[codecov]

Codecov Report

Attention: Patch coverage is 85.29412% with 5 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.5@1207f79). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.5     #62288   +/-   ##
================================================
  Coverage               ?   57.6476%           
================================================
  Files                  ?       1779           
  Lines                  ?     631157           
  Branches               ?          0           
================================================
  Hits                   ?     363847           
  Misses                 ?     242748           
  Partials               ?      24562           

Flag	Coverage Δ
integration	38.1878% <43.3333%> (?)
unit	72.7314% <85.2941%> (?)

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

Components	Coverage Δ
dumpling	52.9278% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	63.3722% <0.0000%> (?)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[GMHDBJD]

/retest

[GMHDBJD]

/retest

[GMHDBJD]

/retest

[GMHDBJD]

/retest

[Benjamin2037]

/retest

[Benjamin2037]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: GMHDBJD, tangenta, YuJuncen

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

The pull request process is described here

Details

Needs approval from an approver in each of these files:

• OWNERS [GMHDBJD,YuJuncen,tangenta]
• br/OWNERS [YuJuncen]

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]

@ti-chi-bot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-unit-test-ddlv1	27e744d	link	true	/test pull-unit-test-ddlv1

Full PR test history. Your PR dashboard.

Details

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. I understand the commands that are listed here.