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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4210) Allow coprocessor to interact with batches per region sent from a client(?)
Date Fri, 04 Jan 2013 09:26:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543732#comment-13543732
] 

Anoop Sam John commented on HBASE-4210:
---------------------------------------

bq.Todd introduced initialized variable so that we don't call preXXX hooks more than once
Yes Ted I am aware of this change that had happened. But all the pre hooks for each of the
Mutation will be called at 1st step itself. After that the actual mutate operation might be
happening in N batches.
We would like to have a pre/post hooks for each of the mini batch mutation.(One call for each
mini operation)
May be it would be better to have one pre/post hook for the entire batch operation also? ->
As per our use case we wanted a such a hook also.
                
> 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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