dengziming opened a new pull request, #43362:
URL: https://github.com/apache/spark/pull/43362
### What changes were proposed in this pull request?
There are more than one reason for this problem, the most frequently failure
path is: [Add partition, CheckAnswer], I guess we are not granted to get
offsets from empty partitions when fetching data in `MicroBatchExecution`.
I run the test locally more than 10 times and they are all successful
after made this change, I even increased iterations from 50 to 100 and it only
failed once in more than 10 times.
### Why are the changes needed?
To make test less flaky, at least 90% more reliable the before. however,
it's still possible to fail since I find some other reason
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
Github CI
### Was this patch authored or co-authored using generative AI tooling?
No
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