[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.
