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https://issues.apache.org/jira/browse/HBASE-15315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15513800#comment-15513800
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Andrew Purtell commented on HBASE-15315:
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Please see the discussion on HBASE-16676

> Remove always set super user call as high priority
> --------------------------------------------------
>
>                 Key: HBASE-15315
>                 URL: https://issues.apache.org/jira/browse/HBASE-15315
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Yong Zhang
>            Assignee: Yong Zhang
>             Fix For: 2.0.0, 1.3.0, 1.4.0
>
>         Attachments: HBASE-15315.001.patch
>
>
> Current implementation set superuser call as ADMIN_QOS, but we have many 
> customers use superuser to do normal table operation such as put/get data and 
> so on. If client put much data during region assignment, RPC from HMaster may 
> timeout because of no handle. so it is better to remove always set super user 
> call as high priority. 



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