*: force_init_stats doesn't block http api's startup (#50853)

[ti-chi-bot]

This is an automated cherry-pick of #50853

What problem does this PR solve?

Issue Number: close #50854

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

create many tables, we can read the metrics HTTP API but cannot operator MySQL port.

• 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

[hawkingrei]

/retest

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@2ec7e32). Click here to learn what that means.
The diff coverage is 16.6666%.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #51038   +/-   ##
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  Coverage               ?   73.6828%           
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  Files                  ?       1095           
  Lines                  ?     350782           
  Branches               ?          0           
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  Hits                   ?     258466           
  Misses                 ?      75718           
  Partials               ?      16598           

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, winoros

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• OWNERS [hawkingrei,winoros]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-08 10:25:37.655890201 +0000 UTC m=+421964.678136585: ☑️ agreed by hawkingrei.
• 2024-03-08 11:57:45.24121714 +0000 UTC m=+427492.263463528: ☑️ agreed by winoros.