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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12897) Minimum memstore size is a percentage
Date Sat, 07 Feb 2015 02:25:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14310465#comment-14310465
] 

Hudson commented on HBASE-12897:
--------------------------------

FAILURE: Integrated in HBase-1.1 #153 (See [https://builds.apache.org/job/HBase-1.1/153/])
HBASE-12897 Minimum memstore size is a percentage (Churro Morales) (stack: rev c234b8df96ccc63929a7121f0d294ba8e55992b1)
* hbase-common/src/main/java/org/apache/hadoop/hbase/io/util/HeapMemorySizeUtil.java


> Minimum memstore size is a percentage
> -------------------------------------
>
>                 Key: HBASE-12897
>                 URL: https://issues.apache.org/jira/browse/HBASE-12897
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0, 0.98.10, 1.1.0
>            Reporter: churro morales
>            Assignee: churro morales
>             Fix For: 1.0.0, 2.0.0, 1.1.0
>
>         Attachments: HBASE-12897.patch
>
>
> We have a cluster which is optimized for random reads.  Thus we have a large block cache
and a small memstore.  Currently our heap is 20GB and we wanted to configure the memstore
to take 4% or 800MB.  Right now the minimum memstore size is 5%.  What do you guys think about
reducing the minimum size to 1%?  Suppose we log a warning if the memstore is below 5% but
allow it?
> What do you folks think? 



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