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From "Eshcar Hillel (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17343) Make Compacting Memstore default in 2.0 with BASIC as the default type
Date Wed, 26 Apr 2017 09:06:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15984401#comment-15984401
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Eshcar Hillel commented on HBASE-17343:
---------------------------------------

+1 from me once QA passes.

@anoop, nice performance results.
We see in many experiments (past and present) in many different settings that MSLABs degrade
performance with G1GC, however MSLABs are needed for running off-heap. 
How about making the default value for MSLABs be equal to the off-heap flag. Namely, when
not explicitly defined by the user, if off-heap is on then MSLAB is on and if we use the heap
then we don't use MSLABs.    

> Make Compacting Memstore default in 2.0 with BASIC as the default type
> ----------------------------------------------------------------------
>
>                 Key: HBASE-17343
>                 URL: https://issues.apache.org/jira/browse/HBASE-17343
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: ramkrishna.s.vasudevan
>            Priority: Blocker
>             Fix For: 2.0.0
>
>         Attachments: HBASE-17343-V01.patch, HBASE-17343-V02.patch, HBASE-17343-V04.patch,
HBASE-17343-V05.patch
>
>
> FYI [~anastas], [~eshcar] and [~ebortnik].



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