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https://issues.apache.org/jira/browse/HBASE-14919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15143221#comment-15143221
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stack commented on HBASE-14919:
-------------------------------
I'm going to commit. If objection, shout and I'll revert.
I ran comparison ycsb loadings of raw master branch against master with this
patch. Numbers come out close enough (with patch 50/50 does better but not as
well in the 20/80 write scenario). I looked at a running ycsb 20/80% writes
with profiler and the ugly stuff is not from this patch.
Related, I tried backporting to 1.2 because thats what my rig had running but
its not an easy task mostly because of where we pass CellComparator in master
and KeyValue.KVComparator in branch.
> Infrastructure refactoring for In-Memory Flush
> ----------------------------------------------
>
> Key: HBASE-14919
> URL: https://issues.apache.org/jira/browse/HBASE-14919
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 2.0.0
> Reporter: Eshcar Hillel
> Assignee: Eshcar Hillel
> Attachments: HBASE-14919-V01.patch, HBASE-14919-V01.patch,
> HBASE-14919-V02.patch, HBASE-14919-V03.patch, HBASE-14919-V04.patch,
> HBASE-14919-V04.patch, HBASE-14919-V05.patch, HBASE-14919-V06.patch,
> HBASE-14919-V06.patch, HBASE-14919-V07.patch, HBASE-14919-V08.patch,
> HBASE-14919-V09.patch, HBASE-14919-V10.patch, HBASE-14919-V11.patch,
> HBASE-14919-V12.patch
>
>
> Refactoring the MemStore hierarchy, introducing segment (StoreSegment) as
> first-class citizen and decoupling memstore scanner from the memstore
> implementation.
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