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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6942) Endpoint implementation for bulk delete rows
Date Sat, 20 Oct 2012 03:06:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13480610#comment-13480610
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Anoop Sam John commented on HBASE-6942:
---------------------------------------

@Lars Your comments on V6....

Also regarding Ted's doubt in finding the number of processed Mutation..  As above u can see
the java doc in HRegionInterface#put() clearly tells that it return the number of processed
Puts. Suppose I have 100 Puts in the input list in which the 50th one failed (assume Sanity
check failed)..  Still the batchMutate will try to process all other 99 Puts..  As per the
logic in HRS it will return 49 as the processed Puts count..  Does this correct?  Pls correct
me if my understanding is wrong
                
> Endpoint implementation for bulk delete rows
> --------------------------------------------
>
>                 Key: HBASE-6942
>                 URL: https://issues.apache.org/jira/browse/HBASE-6942
>             Project: HBase
>          Issue Type: Improvement
>          Components: Coprocessors, Performance
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 0.94.3, 0.96.0
>
>         Attachments: HBASE-6942_DeleteTemplate.patch, HBASE-6942.patch, HBASE-6942_V2.patch,
HBASE-6942_V3.patch, HBASE-6942_V4.patch, HBASE-6942_V5.patch, HBASE-6942_V6.patch
>
>
> We can provide an end point implementation for doing a bulk deletion of rows(based on
a scan) at the server side. This can reduce the time taken for such an operation as right
now it need to do a scan to client and issue delete(s) using rowkeys.
> Query like  delete from table1 where...

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