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From "Nick Pinckernell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-2615) HBase region observer coprocessor not firing from Pig 'store'
Date Thu, 27 Sep 2012 03:37:07 GMT

    [ https://issues.apache.org/jira/browse/PIG-2615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13464393#comment-13464393
] 

Nick Pinckernell commented on PIG-2615:
---------------------------------------

Here is the conversation that was had at the HBase forum:
http://mail-archives.apache.org/mod_mbox/hbase-user/201203.mbox/%3CCABsY1jQ8+OiLh7SYkXZ8iO=NosY8khz7iYs+6W4u6SxCpJ5s9g@mail.gmail.com%3E

For pig 0.9.2 the issue looked like when pig was invoking the put.add() method in the HBaseStorage
class that the ts that was being passed was incorrect and the coprocessor would not fire for
those rows with that version of the 'ts' could not be found.  I have not checked pig 0.10.0
yet.

                
> HBase region observer coprocessor not firing from Pig 'store'
> -------------------------------------------------------------
>
>                 Key: PIG-2615
>                 URL: https://issues.apache.org/jira/browse/PIG-2615
>             Project: Pig
>          Issue Type: Bug
>          Components: data
>    Affects Versions: 0.9.2
>         Environment: Pig 0.9.2, HBase 0.92, Hadoop 1.0.0
>            Reporter: Nick Pinckernell
>            Assignee: Nick Pinckernell
>            Priority: Minor
>              Labels: hbase, newbie, patch
>         Attachments: HBaseStorage_java_coprocessor.patch
>
>
> When using pig to load data into HBase the region observer coprocessor (specifically
prePut() as I have not tested all the other possible region observer combinations) with the
'store' command the coprocessor is not getting invoked.
> I have tracked this down and come up with a simple patch.  A record of the investigation
is on both the Pig and HBase user forums.

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