[
https://issues.apache.org/jira/browse/HBASE-13375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14487847#comment-14487847
]
Mikhail Antonov commented on HBASE-13375:
-----------------------------------------
Yeah, you're right. This possible behavior is actually sitting there right now
without a patch though? Now we're checking that rpc is access to system table
(qos 200) after we check annotations (which means, manually setting annotation
on certain rpc overrides access to system table?).
I think what's there works for simplified case like - "it's standard call
priority, unless 1) or 2) or 3)". And beyond that we might want to specify in
what order we check the rules. What do you guys think?
> 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: 1.1.0
>
> Attachments: HBASE-13375-v0.patch, HBASE-13375-v1.patch,
> HBASE-13375-v1.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?
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
