Lightning: increase backoff if split fails (#49518)

[ti-chi-bot]

This is an automated cherry-pick of #49518

What problem does this PR solve?

Issue Number: close #49517

Problem Summary:
Lightning job is failing intermittently after enable BR on prod clusters because of batch split failure. During the backup process, BR temporarily disables the schedulers for a period of 1-2 minutes. However, the Lightning job, which does not have a backoff mechanism, continues to retry the process for up to 5 times without pausing or spacing out the retries.

What changed and how does it work?

i am adding a exponential back off before each retry and now it will retry upto 930 seconds before if fails the job

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
NO

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation
NO

• 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

Attention: Patch coverage is 20.00000% with 8 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (release-7.5@37e8b85). Click here to learn what that means.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.5     #51929   +/-   ##
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  Coverage               ?   71.9810%           
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  Files                  ?       1408           
  Lines                  ?     409105           
  Branches               ?          0           
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  Hits                   ?     294478           
  Misses                 ?      94793           
  Partials               ?      19834           

Flag	Coverage Δ
unit	71.9810% <20.0000%> (?)

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

Components	Coverage Δ
dumpling	53.9913% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	53.3355% <0.0000%> (?)

[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:

• 2024-05-10 03:53:42.972452398 +0000 UTC m=+1193376.729587964: ☑️ agreed by Benjamin2037.
• 2024-05-10 06:20:16.990044444 +0000 UTC m=+1202170.747180015: ☑️ agreed by lance6716.