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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 Thu, 14 Feb 2013 04:16:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13578135#comment-13578135
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Anoop Sam John commented on HBASE-4210:
---------------------------------------

bq.Should next() return boolean and hasNext() be a private implementation?
Looks fine. Just like InternalScanner#next() returns hasNext. 
bq.Can we avoid exposing WALedits here? Because we now expose them in WalObserver also.
Why I have done so is, the prePut() hook allows the CP to add/change the WALWdit. We capture
the WALEdits from CP and writing. So may be some one might need it?
                
> 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
>    Affects Versions: 0.94.0
>            Reporter: Lars Hofhansl
>            Assignee: Anoop Sam John
>            Priority: Minor
>             Fix For: 0.96.0, 0.94.6
>
>         Attachments: HBASE-4210_94.patch
>
>
> 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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