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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13375) Provide HBase superuser higher priority over other users in the RPC handling
Date Sat, 23 May 2015 16:00:22 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14557406#comment-14557406
] 

Hadoop QA commented on HBASE-13375:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12735021/HBASE-13375-v9.patch
  against master branch at commit f28e3952905592c6cc3c6c07b2509795e1210e70.
  ATTACHMENT ID: 12735021

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 14 new or modified
tests.

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/14162//console

This message is automatically generated.

> Provide HBase superuser higher priority over other users in the RPC handling
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-13375
>                 URL: https://issues.apache.org/jira/browse/HBASE-13375
>             Project: HBase
>          Issue Type: Improvement
>          Components: rpc
>            Reporter: Devaraj Das
>            Assignee: Mikhail Antonov
>             Fix For: 1.1.1
>
>         Attachments: HBASE-13375-v0.patch, HBASE-13375-v1.patch, HBASE-13375-v1.patch,
HBASE-13375-v1.patch, HBASE-13375-v2.patch, HBASE-13375-v3.patch, HBASE-13375-v4.patch, HBASE-13375-v5.patch,
HBASE-13375-v6.patch, HBASE-13375-v7.patch, HBASE-13375-v8.patch, HBASE-13375-v9.patch
>
>
> HBASE-13351 annotates Master RPCs so that RegionServer RPCs are treated with a higher
priority compared to user RPCs (and they are handled by a separate set of handlers, etc.).
It may be good to stretch this to users too - hbase superuser (configured via hbase.superuser)
gets higher priority over other users in the RPC handling. That way the superuser can always
perform administrative operations on the cluster even if all the normal priority handlers
are occupied (for example, we had a situation where all the master's handlers were tied up
with many simultaneous createTable RPC calls from multiple users and the master wasn't able
to perform any operations initiated by the admin). (Discussed this some with [~enis] and [~elserj]).
> Does this make sense to others?



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