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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5258) Move coprocessors set out of RegionLoad
Date Tue, 11 Dec 2012 18:59:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13529219#comment-13529219
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Sergey Shelukhin commented on HBASE-5258:
-----------------------------------------

Tests pass for me (for 0.94 patch), at least small and medium so far.
                
> Move coprocessors set out of RegionLoad
> ---------------------------------------
>
>                 Key: HBASE-5258
>                 URL: https://issues.apache.org/jira/browse/HBASE-5258
>             Project: HBase
>          Issue Type: Task
>            Reporter: Ted Yu
>            Assignee: Sergey Shelukhin
>            Priority: Critical
>             Fix For: 0.96.0
>
>         Attachments: HBASE-5258-094.patch, HBASE-5258-fix-on-top-of-v1.patch, HBASE-5258-v0.patch,
HBASE-5258-v1.patch
>
>
> When I worked on HBASE-5256, I revisited the code related to Ser/De of coprocessors set
in RegionLoad.
> I think the rationale for embedding coprocessors set is for maximum flexibility where
each region can load different coprocessors.
> This flexibility is causing extra cost in the region server to Master communication and
increasing the footprint of Master heap.
> Would HServerLoad be a better place for this set ?
> If required, region server should calculate disparity of loaded coprocessors among regions
and send report through HServerLoad

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