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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2021/08/23 09:23:09 UTC

[GitHub] [ozone] ChenSammi commented on pull request #2538: HDDS-5619. Ozone data corruption issue on follower node.

ChenSammi commented on pull request #2538:
URL: https://github.com/apache/ozone/pull/2538#issuecomment-903594803


   > 
   > 
   > The issue eventually turned out to be race among write chunk/readChunk threads all using the same file channel. With concurrent writers and readers on the same file, the behaviour seems unpredictable and leads to block file sparseness on disk.
   
   @bshashikant ,  for ContainerStateMachine#read function，I'm not clear about one thing，when  stateMachineDataCache.get(entry.getIndex()) return null， why we cannot think that the data is already written to the disk. 


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