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From "Kay Kay (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2368) BulkPut - Writable class compatible with TableOutputFormat for bulk puts agnostic of region server mapping at Mapper/Combiner level
Date Tue, 23 Mar 2010 21:31:27 GMT
BulkPut - Writable class  compatible with TableOutputFormat for bulk puts agnostic of region
server mapping at Mapper/Combiner level
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                 Key: HBASE-2368
                 URL: https://issues.apache.org/jira/browse/HBASE-2368
             Project: Hadoop HBase
          Issue Type: Improvement
            Reporter: Kay Kay
             Fix For: 0.21.0


TableOutputFormat 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 TableOutputFormat 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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