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https://issues.apache.org/jira/browse/HBASE-4263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13093093#comment-13093093
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Gary Helmling commented on HBASE-4263:
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The patch seems fine to me. I view the additional config property as just a
short-cut to enabling a coprocessor per-table on each user table.
I do think that too many configuration properties can become confusing, but I
don't think one more will kill us.
For naming, I prefer hbase.coprocessor.user.region.classes for consistency with
terminology throughout other coprocessor code/configs. If we name break that
consistency, let's have a good reason.
> New config property for user-table only RegionObservers.
> --------------------------------------------------------
>
> Key: HBASE-4263
> URL: https://issues.apache.org/jira/browse/HBASE-4263
> Project: HBase
> Issue Type: Improvement
> Components: coprocessors
> Affects Versions: 0.92.0
> Reporter: Lars Hofhansl
> Priority: Minor
> Fix For: 0.92.0
>
> Attachments: 4263.txt
>
>
> 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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