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From "Anastasia Braginsky (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16417) In-Memory MemStore Policy for Flattening and Compactions
Date Mon, 05 Sep 2016 10:19:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15464680#comment-15464680
] 

Anastasia Braginsky commented on HBASE-16417:
---------------------------------------------

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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