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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13375) Provide HBase superuser higher priority over other users in the RPC handling
Date Wed, 20 May 2015 04:43:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14551802#comment-14551802
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Anoop Sam John commented on HBASE-13375:
----------------------------------------

My only concerns were util methods added to User class.  These are group related stuff. 
getGroupName(String aclKey) 
isGroupPrincipal(String name)
I am -0 for that.

Or can we move them to a new AuthenticationUtil or so? If this new class can be like a non
util thing (some better name we need), we can even move the super user check also there. (isSuperUser(User)).
  We can make this singleton and instantiate once passing the configuration.  That way we
can even keep the User class untouched and no static variables( List of super users) addition..
  What all think abt this?

> 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-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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