[jira] Commented: (HBASE-2368) BulkPut - Writable class compatible with TableRecordWriter for bulk puts agnostic of region server mapping at Mapper/Combiner level

["ryan rawson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-2368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849057#action_12849057 ] 

ryan rawson commented on HBASE-2368:
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could you explain to me how this might be different than having the TableOutputFormat assume/use a write buffer?  This new BulkPut becomes part of the API and we should think carefully about that before we commit to it.

> BulkPut - Writable class  compatible with TableRecordWriter for bulk puts agnostic of region server mapping at Mapper/Combiner level
> ------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-2368
>                 URL: https://issues.apache.org/jira/browse/HBASE-2368
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: client
>            Reporter: Kay Kay
>             Fix For: 0.21.0
>
>         Attachments: HBASE-2368.patch
>
>
> TableRecordWriter currently accepts only a put/delete as writables. Some mapper processes might want to consolidate the 'put's and insert them in bulk. Useful in combiners / mappers - to send across a bunch of puts from one stage to another , while maintaining a very similar region-server-mapping agnostic api at respective levels. 
> New type - BulkPut ( Writable ) introduced that is just a consolidation of Puts.  Eventually , the TableRecordWriter bulk inserts the puts together into the hbase eco-system. 
> Patch made against trunk only. But since , it does not break any backward compatibility - it can be an useful addition to the branch as well. 
> Let me know your comments on the same. 

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