Fix data race in coordinator

[hongyunyan]

What problem does this PR solve?

Issue Number: close #956

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Questions

Will it cause performance regression or break compatibility?

Do you need to update user documentation, design documentation or monitoring documentation?

Release note

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: asddongmen

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-01-27 03:59:02.919170107 +0000 UTC m=+671670.250089510: ☑️ agreed by asddongmen.