deepakpanda93 commented on issue #15316:
URL: https://github.com/apache/hudi/issues/15316#issuecomment-5326193028

   This issue was reviewed as part of the JIRA-migrated backlog triage and is 
being closed as stale.
   
   The description is empty and the title is a question rather than a request - 
*"why hudi clean service actually retain CLEAN_RETAIN_COMMITS + 1"* - filed as 
a Wish. It does not say whether the off-by-one should be treated as a bug, a 
documentation gap, or expected behaviour. The JIRA last moved 2022-08-09.
   
   No commit or PR carries HUDI-4537, and the semantics do not appear to have 
changed by release-1.2.0. Retaining one extra commit is intentional: the 
cleaner has to keep the commit that the last retained commit's file slices 
depend on for reads to stay consistent.
   
   Closing. If the documented meaning of `hoodie.cleaner.commits.retained` 
should be clarified, that is a small docs issue worth filing against the 
website.


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