bug: Issue1090.test occasionally fails to run

[konghaiya]

Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Please confirm if bug report does NOT exists already ?

• I confirm there is no existing issue for this

Describe the problem

There is a problem in the method of waiting for the master/slave synchronization to complete, which leads to the data not being synchronized, and then proceed to the next step

Expected behavior

Use the correct method to determine whether the slave database is synchronized

How To Reproduce

No response

Environment

No response

Are you interested in submitting a PR to solve the problem?

• Yes, I will!