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Date: Fri, 27 Feb 2015 17:38:04 +0000 (UTC)
From: "Andrew Purtell (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12772592.1423114152000.35469.1425058684927@Atlassian.JIRA>
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Subject: [jira] [Commented] (HBASE-12975) SplitTranaction,
 RegionMergeTransaction to should have InterfaceAudience of
 LimitedPrivate(Coproc,Phoenix)
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    [ https://issues.apache.org/jira/browse/HBASE-12975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14340432#comment-14340432 ] 

Andrew Purtell commented on HBASE-12975:
----------------------------------------

bq. The reason to use it is that we'd label it Evolving or Stable in the next minor release. We could even add a note in the javadoc explaining that it's Unstable just to flag that folks have to keep in mind that it wasn't around at the start of the API cut off for 1.0. Like the compat guide says, just because we have the option to break things at a particular version (in this case at patches sine it's Unstable) doesn't mean we will.

Ok, will do that and add the suggested javadoc

> SplitTranaction, RegionMergeTransaction to should have InterfaceAudience of LimitedPrivate(Coproc,Phoenix)
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-12975
>                 URL: https://issues.apache.org/jira/browse/HBASE-12975
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Rajeshbabu Chintaguntla
>            Assignee: Rajeshbabu Chintaguntla
>             Fix For: 2.0.0, 1.0.1, 1.1.0
>
>         Attachments: HBASE-12975.patch
>
>
> Making SplitTransaction, RegionMergeTransaction limited private is required to support local indexing feature in Phoenix to ensure regions colocation. 
> We can ensure region split, regions merge in the coprocessors in few method calls without touching internals like creating zk's, file layout changes or assignments.
> 1) stepsBeforePONR, stepsAfterPONR we can ensure split.
> 2) meta entries can pass through coprocessors to atomically update with the normal split/merge.
> 3) rollback on failure.


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