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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4210) Allow coprocessor to interact with batches per region sent from a client(?)
Date Wed, 02 Jan 2013 04:08:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13541988#comment-13541988
] 

ramkrishna.s.vasudevan commented on HBASE-4210:
-----------------------------------------------

Yes.  We encountered some dead lock situation wrt to the advancing the mvcc and the order
in which the flush was happening.  Infact some dataloss also we encountered that time.  

                
> Allow coprocessor to interact with batches per region sent from a client(?)
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-4210
>                 URL: https://issues.apache.org/jira/browse/HBASE-4210
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Lars Hofhansl
>            Assignee: Anoop Sam John
>            Priority: Minor
>
> Currently the coprocessor write hooks - {pre|post}{Put|Delete} - are strictly one row|cell
operations.
> It might be a good idea to allow a coprocessor to deal with batches of puts and deletes
as they arrive from the client.

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