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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11219) HRegionServer#createRegionLoad() should reuse RegionLoad.Builder instance when called in a loop
Date Wed, 21 May 2014 16:56:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14004904#comment-14004904
] 

Ted Yu commented on HBASE-11219:
--------------------------------

I am using jmap to check the region servers in cluster accessible to me.
Will report back.

> HRegionServer#createRegionLoad() should reuse RegionLoad.Builder instance when called
in a loop
> -----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-11219
>                 URL: https://issues.apache.org/jira/browse/HBASE-11219
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 0.99.0, 0.98.3
>
>         Attachments: 11219-v1.txt, 11219-v2.txt
>
>
> As Andrew showed in the attachment to HBASE-11165, ClusterStatusProtos$RegionLoad$Builder
took 25MB heap space.
> buildServerLoad() calls createRegionLoad() for each region on the region server.
> One instance of ClusterStatusProtos$RegionLoad$Builder can be created outside the loop
and passed to createRegionLoad().
> Thanks Andrew for the finding.



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