[GitHub] [pinot] GXM2333 commented on issue #8258: MergeRollupTask and RealtimeToOfflineSegmentsTask don't clean up old segments

[GitBox]

GXM2333 commented on issue #8258:
URL: https://github.com/apache/pinot/issues/8258#issuecomment-1057635637


   Yes. For `transcriptss_OFFLINE` table ,I didn't configure a retention 
strategy.I guess the old segments of this table were deleted based on segment 
lineage, cause there are indeed a few old segments that have been deleted based 
on segments' screenshots above.
   
    I guess the reason that I didn't see these old segments name from [this 
log](https://github.com/apache/pinot/blob/b8fecb9d5a8fe524c42e29ce99ccf5012a2ebd49/pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/retention/RetentionManager.java#L258)
 is log manager has deleted the log file.I found the default log configuration 
only maintain 10 log gzip files.
   
![](https://user-images.githubusercontent.com/24871202/156491910-7cb511ef-ae4b-4683-b33f-dca0d30f7952.png)
   
   Thanks for helping me again,I will just close this issue :)
   


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