statstics: avoid unnecessary try when to sync load

[hawkingrei]

What problem does this PR solve?

Issue Number: close #56472

Problem Summary:

What changed and how does it work?

Check List

Tests

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

e2e team has verified it by their e2e test cases/

• 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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.4366%. Comparing base (6af2863) to head (718a007).
Report is 3 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #56614         +/-   ##
=================================================
- Coverage   73.3331%   56.4366%   -16.8965%     
=================================================
  Files          1629       1778        +149     
  Lines        449951     636790     +186839     
=================================================
+ Hits         329963     359383      +29420     
- Misses        99746     252822     +153076     
- Partials      20242      24585       +4343     

Flag	Coverage Δ
integration	38.0384% <100.0000%> (?)
unit	72.4749% <100.0000%> (+0.0031%)	⬆️

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

Components	Coverage Δ
dumpling	52.9478% <ø> (ø)
parser	∅ <ø> (∅)
br	52.3809% <ø> (+6.8081%)	⬆️

[hawkingrei]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [AilinKid,winoros]
• pkg/statistics/OWNERS [AilinKid,winoros]

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]

[LGTM Timeline notifier]

Timeline:

• 2024-10-14 07:24:48.555150882 +0000 UTC m=+255885.704060749: ☑️ agreed by winoros.
• 2024-10-14 07:54:37.065628028 +0000 UTC m=+257674.214537855: ☑️ agreed by AilinKid.

[hawkingrei]

/retest

[hawkingrei]

/cherrypick release-8.4

[ti-chi-bot]

@hawkingrei: new pull request created to branch release-8.4: #56638.

In response to this:

/cherrypick release-8.4

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