snleee opened a new pull request #7995:
URL: https://github.com/apache/pinot/pull/7995
1. Add retention for original segments for REFRESH table after
the replacement protocol is successfully done. For now, we
use 24 hrs retention. We keep the original data for 24 hours
so that the user can revert back to the original segments
using revertReplaceSegments API.
2. Add the proactive clean-up in startReplaceSegment so that we
do not keep too much data snapshots for REFRESH table. For
now, we allow to keep at most 2 snapshots.
3. Added unit tests.
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