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https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15464680#comment-15464680
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Anastasia Braginsky commented on HBASE-16417:
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Hey Guys,
Sorry, wasn't active on this thread for a while. By "merge" we mean the new
ability to merge many segments just together, into one segment as a result.
There is no copy of the MSLAB and no SQM used. Just merging the MSLABs and the
CellArrayMaps of multiple segments into the new single one.
The content of the CellArrayMaps is indeed copied, but not the Cells' data.
The new patch is going to be released tomorrow, I hope, so you will see the
code and probably understand what I mean better.
We also believe this JIRA need to be split into two. One with the patch I am
going to publish and with the merge issue and the second JIRA, which is going
to truly care for the policy itself.
> In-Memory MemStore Policy for Flattening and Compactions
> --------------------------------------------------------
>
> Key: HBASE-16417
> URL: https://issues.apache.org/jira/browse/HBASE-16417
> Project: HBase
> Issue Type: Sub-task
> Reporter: Anastasia Braginsky
> Assignee: Anastasia Braginsky
> Fix For: 2.0.0
>
>
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