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From "ramkrishna.s.vasudevan (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 Thu, 28 Apr 2016 10:19:12 GMT

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ramkrishna.s.vasudevan commented on HBASE-6633:
-----------------------------------------------

So you think its better to add the left and right daughter regions to the postcompletesplit?

> 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
>             Fix For: 0.95.0
>
>         Attachments: HBASE-6633.patch
>
>
> 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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