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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12972) Region, a supportable public/evolving subset of HRegion
Date Thu, 05 Feb 2015 16:35:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14307511#comment-14307511
] 

Andrew Purtell commented on HBASE-12972:
----------------------------------------

I had a look at how Phoenix is using HRegion, see PHOENIX-1636, PHOENIX-1637, and PHOENIX-1638.


I like Stack's suggestion above, and add access to row locks and region read locks (PHOENIX-1637).
What else?

> Region, a supportable public/evolving subset of HRegion
> -------------------------------------------------------
>
>                 Key: HBASE-12972
>                 URL: https://issues.apache.org/jira/browse/HBASE-12972
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 2.0.0, 1.0.1, 1.1.0, 0.98.11
>
>
> On HBASE-12566, [~lhofhansl] proposed:
> {quote}
> Maybe we can have a {{Region}} interface that is to {{HRegion}} is what {{Store}} is
to {{HStore}}. Store marked with {{@InterfaceAudience.Private}} but used in some coprocessor
hooks.
> {quote}
> By example, now coprocessors have to reach into HRegion in order to participate in row
and region locking protocols, this is one area where the functionality is legitimate for coprocessors
but not for users, so an in-between interface make sense.
> In addition we should promote {{Store}}'s interface audience to LimitedPrivate(COPROC).



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