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https://issues.apache.org/jira/browse/HBASE-16608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575886#comment-15575886
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stack commented on HBASE-16608:
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[~devaraj] User-facing doc is a TODO (Could file a JIRA @anasta ? Premature up
to this but it is now coming time). Intent is that this facility is just on and
beneficial with nought for the user to do. Otherwise we'll leave it off.
Pending perf analysis.
On your concern that this be done in a branch, this work was started a long
time ago when hbase 2.0 was far off. It has gone on longer than any of us
expected . Inmemory compaction has a large overlap with the offheaping work of
Ram and Anoop. Master branch seemed the best place to coordinate the two
efforts. I think a branch makes more sense when a focused team is working on a
standalone feature. But I appreciate your concern with 2.0.0 coming up fast.
As DD says, it is tough having to cover multiple JIRAs with loads of
attachments to try and get a sense of the current state of development. In the
past -- Ram, you've done this with respect to offheaping read path IIRC -- a
summary of current state by one of the parties involved has helped community
grok where we are. Maybe I could do it. I just got my perf cluster back and
could take the current state for a spin and report back what I'm seeing?
> Introducing the ability to merge ImmutableSegments without copy-compaction or
> SQM usage
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-16608
> URL: https://issues.apache.org/jira/browse/HBASE-16608
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anastasia Braginsky
> Assignee: Anastasia Braginsky
> Attachments: HBASE-16417-V02.patch, HBASE-16417-V04.patch,
> HBASE-16417-V06.patch, HBASE-16417-V07.patch, HBASE-16417-V08.patch,
> HBASE-16417-V10.patch, HBASE-16608-V01.patch, HBASE-16608-V03.patch,
> HBASE-16608-V04.patch, HBASE-16608-V08.patch
>
>
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