[hbase] Make flusher less dumb ------------------------------ Key: HADOOP-2636 URL: https://issues.apache.org/jira/browse/HADOOP-2636 Project: Hadoop Issue Type: Improvement Components: contrib/hbase Reporter: stack Priority: Minor
When flusher runs -- its triggered when the sum of all Stores in a Region > a configurable max size -- we flush all Stores though a Store memcache might have but a few bytes. I would think Stores should only dump their memcache disk if they have some substance. The problem becomes more acute, the more families you have in a Region. Possible behaviors would be to dump the biggest Store only, or only those Stores > 50% of max memcache size. Behavior would vary dependent on the prompt that provoked the flush. Would also log why the flush is running: optional or > max size. This issue comes out of HADOOP-2621. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.