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Allan Yang commented on HBASE-17757: ------------------------------------ ping [~stack] , [~anoopsamjohn], any new idea about the patch? I think it is OK to set the default ratio to 0.5. Like the default value of datablocksize(64KB), it also is a empirical value. Anyone don't like it can change it. But for most people, it works well. > Unify blocksize after encoding to decrease memory fragment > ----------------------------------------------------------- > > Key: HBASE-17757 > URL: https://issues.apache.org/jira/browse/HBASE-17757 > Project: HBase > Issue Type: New Feature > Reporter: Allan Yang > Assignee: Allan Yang > Attachments: HBASE-17757.patch, HBASE-17757v2.patch > > > Usually, we store encoded block(uncompressed) in blockcache/bucketCache. > Though we have set the blocksize, after encoding, blocksize is varied. Varied > blocksize will cause memory fragment problem, which will result in more FGC > finally.In order to relief the memory fragment, This issue adjusts the > encoded block to a unified size. -- This message was sent by Atlassian JIRA (v6.3.15#6346)