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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12897) Minimum memstore size is a percentage
Date Fri, 13 Feb 2015 02:54:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14319495#comment-14319495
] 

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

SUCCESS: Integrated in HBase-0.98 #850 (See [https://builds.apache.org/job/HBase-0.98/850/])
HBASE-12897 Minimum memstore size is a percentage (apurtell: rev 0ffb197a66092eab3a2385068a68e6e384deeb6e)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStoreFlusher.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, 0.98.11
>
>         Attachments: HBASE-12897.0.98.patch, 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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