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https://issues.apache.org/jira/browse/HBASE-3401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12979006#action_12979006
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Hudson commented on HBASE-3401:
-------------------------------
Integrated in HBase-TRUNK #1708 (See
[https://hudson.apache.org/hudson/job/HBase-TRUNK/1708/])
> Region IPC operations should be high priority
> ---------------------------------------------
>
> Key: HBASE-3401
> URL: https://issues.apache.org/jira/browse/HBASE-3401
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.90.1
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.90.0
>
> Attachments: hbase-3401.txt, hbase-3401.txt
>
>
> I manufactured an imbalanced cluster so one region server had 300 regions and
> the others had very few. I then ran balancer while hitting the high-load
> region server with YCSB. I observed that the rate of load shedding was VERY
> slow since the closeRegion IPCs were getting stuck at the back of the IPC
> queue.
> All of these important master->RS RPC calls should be set to high priority.
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