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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17071) Do not initialize MemstoreChunkPool when use mslab option is turned off
Date Fri, 11 Nov 2016 06:38:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15656311#comment-15656311
] 

Yu Li commented on HBASE-17071:
-------------------------------

+1 for the idea, makes sense.

> Do not initialize MemstoreChunkPool when use mslab option is turned off
> -----------------------------------------------------------------------
>
>                 Key: HBASE-17071
>                 URL: https://issues.apache.org/jira/browse/HBASE-17071
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0
>
>
> This is a 2.0 only issue and induced by HBASE-16407. 
> We are initializing MSLAB chunk pool along with RS start itself now. (To pass it as a
HeapMemoryTuneObserver).
> When MSLAB is turned off  (ie. hbase.hregion.memstore.mslab.enabled is configured false)
we should not be initializing MSLAB chunk pool at all.  By default the initial chunk count
to be created will be 0 only.  Still better to avoid.



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