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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6942) Endpoint implementation for bulk delete rows
Date Tue, 16 Oct 2012 07:03:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13476814#comment-13476814
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Lars Hofhansl commented on HBASE-6942:
--------------------------------------

bq. We do not have any way to get only the 1st KVs from all the families of row right? We
have FirstKeyOnlyFilter now.
Right. I can't see any way to only get the 1st KV for a CF. I think we can live with that
for now.

bq. We need to pass the rowBatchSize too
Yes, forgot about that.

bq. Do we need a Request object taking up the attributes? Yes some thing inline of protobufs?
Not sure. I like just passing the four parameters needed. (If that is not possible with protobufs,
we should use a request object.)

                
> 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.patch, HBASE-6942_V2.patch, HBASE-6942_V3.patch, HBASE-6942_V4.patch,
HBASE-6942_V5.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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