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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6633) Adding new hooks to the split flow - For roll backs and one final hook after split is completed either successfully or failed
Date Wed, 22 Aug 2012 15:57:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439626#comment-13439626
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Andrew Purtell commented on HBASE-6633:
---------------------------------------

bq. Pls do suggest if i can provide a patch for this. 

Sounds good to me. Thanks Ram. Please keep but deprecate postSplit. 
                
> Adding new hooks to the split flow - For roll backs and one final hook after split is
completed either successfully or failed
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-6633
>                 URL: https://issues.apache.org/jira/browse/HBASE-6633
>             Project: HBase
>          Issue Type: Improvement
>          Components: coprocessors
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>              Labels: coprocessors
>
> Currently we have two hooks in the split flow of a region.  PreSplit() and postSplit().
 But not always these are helpful in case i have a problem in preSplit() or postSplit() i
need to do a rollback of the current region or the region that i am handling thro the hooks.
> So its better if we have a hook in the rollback code and also one final hook say postCompleteSplit()
so that CP can take any corrective action.
> Pls do suggest if i can provide a patch for this.  

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