[Improve][Zeta] Clean checkpoint file when job FINISHED/CANCELED #6938
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Purpose of this pull request
This PR try to clean checkpoint file when job FINISHED/CANCELED. Because when job FINISHED/CANCELED, the checkpoint file will be useless.
Does this PR introduce any user-facing change?
Yes, can not find checkpoint file when job FINISHED/CANCELED
How was this patch tested?
add new test.
Check list
New License Guide
release-note
.