autoid_service: fix potential 'duplicated entry' error when tidb exit for AUTO_ID_CACHE=1 tables #46445

[tiancaiamao]

What problem does this PR solve?

Issue Number: close #46444

Problem Summary:

Hotfix for v6.5.3, cherry-pick #46445 and #46526

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  • See the steps in the comments of #46444
• No code

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 @tiancaiamao. Thanks for your PR.

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[bb7133]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bb7133, YangKeao

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-31 03:06:53.76606659 +0000 UTC m=+1982778.315082562: ☑️ agreed by YangKeao.
• 2023-08-31 03:14:48.320981168 +0000 UTC m=+1983252.869997153: ☑️ agreed by bb7133.

[tiancaiamao]

/retest-required

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[tiancaiamao]

/test unit-test

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/test unit-test

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5-20230830-v6.5.3@71e6696). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

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##             release-6.5-20230830-v6.5.3     #46541   +/-   ##
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