[jira] [Commented] (HBASE-4263) New config property for user-table only RegionObservers.

["Andrew Purtell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-4263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092222#comment-13092222 ] 

Andrew Purtell commented on HBASE-4263:
---------------------------------------

Security is a strong use case, end of story.

I'm -1 on this issue, it should be resolved as invalid.

Otherwise we don't have RegionObservers, we have SometimesRegionObservers, or NotUsefulToTheContributorsOfCoprocessorsRegionObservers.





> New config property for user-table only RegionObservers.
> --------------------------------------------------------
>
>                 Key: HBASE-4263
>                 URL: https://issues.apache.org/jira/browse/HBASE-4263
>             Project: HBase
>          Issue Type: Bug
>          Components: coprocessors
>    Affects Versions: 0.92.0
>            Reporter: Lars Hofhansl
>            Priority: Minor
>             Fix For: 0.92.0
>
>
> It turns out that a RegionObserver can interfere with - ROOT - and .META.
> That seems weird and should be prevented.
> (The one use case for this that I could come up with is access control by Region by intercepting actions on .META., and I don't think that's a particularly strong use case).
> I'll attach a patch as soon as I get to it.

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