disttask/ddl: refine manager error handling

[ywqzzy]

What problem does this PR solve?

Issue Number: ref #46258, close #48064

Problem Summary:

What is changed and how it works?

1. Check error retryable when init scheduler.
2. Add ErrCreatePDClient for ha test met it.
3. Check retryable error for dist task in ddl framework.

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 @ywqzzy. Thanks for your PR.

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[codecov]

Codecov Report

Merging #48095 (f69e4af) into master (173e485) will increase coverage by 1.7227%.
Report is 18 commits behind head on master.
The diff coverage is 58.3333%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #48095        +/-   ##
================================================
+ Coverage   71.5914%   73.3142%   +1.7227%     
================================================
  Files          1401       1424        +23     
  Lines        405923     415783      +9860     
================================================
+ Hits         290606     304828     +14222     
+ Misses        95508      92125      -3383     
+ Partials      19809      18830       -979     

Flag	Coverage Δ
integration	43.0013% <8.3333%> (?)
unit	72.1312% <58.3333%> (+0.5398%)	⬆️

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

Components	Coverage Δ
dumpling	54.0503% <ø> (ø)
parser	∅ <ø> (∅)
br	48.7506% <ø> (-4.1526%)	⬇️

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-30 10:01:25.844753741 +0000 UTC m=+2860883.431863872: ☑️ agreed by wjhuang2016.
• 2023-10-30 10:11:10.460263884 +0000 UTC m=+2861468.047374014: ☑️ agreed by tangenta.

[hawkingrei]

/test all

[hawkingrei]

/retest

[hawkingrei]

/retest

[hawkingrei]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lance6716, tangenta, wjhuang2016

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Needs approval from an approver in each of these files:

• OWNERS [lance6716,tangenta,wjhuang2016]
• br/pkg/lightning/OWNERS [lance6716]
• pkg/disttask/OWNERS [lance6716,tangenta,wjhuang2016]

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[ywqzzy]

/retest

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@ywqzzy: 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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[ywqzzy]

/retest

[tiprow]

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

In response to this:

/retest

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[hawkingrei]

/test all

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #48138.