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https://issues.apache.org/jira/browse/HBASE-2462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925491#action_12925491
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Nicolas Spiegelberg commented on HBASE-2462:
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@Stack: Sorry for the bevvy of conversation. This has been heavily discussed
internally, and we just wanted to keep you up to date on our findings. Let me
work with Jonathan to get this issue closed out and we'll open up separate
JIRAs for the various compaction findings we've come across.
> Review compaction heuristic and move compaction code out so standalone and
> independently testable
> -------------------------------------------------------------------------------------------------
>
> Key: HBASE-2462
> URL: https://issues.apache.org/jira/browse/HBASE-2462
> Project: HBase
> Issue Type: Improvement
> Reporter: stack
> Assignee: Jonathan Gray
> Priority: Critical
>
> Anything that improves our i/o profile makes hbase run smoother. Over in
> HBASE-2457, good work has been done already describing the tension between
> minimizing compactions versus minimizing count of store files. This issue is
> about following on from what has been done in 2457 but also, breaking the
> hard-to-read compaction code out of Store.java out to a standalone class that
> can be the easier tested (and easily analyzed for its performance
> characteristics).
> If possible, in the refactor, we'd allow specification of alternate merge
> sort implementations.
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