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https://issues.apache.org/jira/browse/HBASE-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716150#action_12716150
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Billy Pearson commented on HBASE-1410:
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I am seeing compactions OOME'ing my servers with a 512MB region size setting
and compression turned on with a 1GB heap
(re)deployed on each region server and killed the whole cluster one by one.
> compactions are not memory efficient
> -------------------------------------
>
> Key: HBASE-1410
> URL: https://issues.apache.org/jira/browse/HBASE-1410
> Project: Hadoop HBase
> Issue Type: Improvement
> Reporter: Andrew Purtell
> Fix For: 0.20.0
>
>
> Compactions read a lot of data into the heap. Prior to HBASE-1058 or
> successor issues, it was possible to stack up hundreds if not thousands of
> flushes in a store. Eventually when compaction is possible, no HRS has enough
> heap to commit for the compaction process and all OOME as the region in
> question is (re)deployed. HBASE-1058 is not the ideal solution.This issue
> suggests creating a memory efficient compaction process which can scale.
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