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From "Koji Noguchi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3435) Custom Partitioner not working with MultiQueryOptimizer
Date Thu, 22 Aug 2013 22:35:51 GMT

     [ https://issues.apache.org/jira/browse/PIG-3435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Koji Noguchi updated PIG-3435:
------------------------------

    Attachment: pig-3435-v01.patch

Looking at the multi-query optimization code and documents.  I chickened out. 

Taking the same approach as PIG-1108 and simply skipping the MR jobs with custom partitioner.

Attaching the test case soon.
                
> Custom Partitioner not working with MultiQueryOptimizer
> -------------------------------------------------------
>
>                 Key: PIG-3435
>                 URL: https://issues.apache.org/jira/browse/PIG-3435
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>            Reporter: Koji Noguchi
>            Assignee: Koji Noguchi
>         Attachments: pig-3435-v01.patch
>
>
> When looking at PIG-3385, noticed some issues in handling of custom partitioner with
multi-query optimization.
> {noformat}
> C1 = group B1 by col1 PARTITION BY
>        org.apache.pig.test.utils.SimpleCustomPartitioner parallel 2;
> C2 = group B2 by col1 PARTITION BY
>        org.apache.pig.test.utils.SimpleCustomPartitioner parallel 2;
> {noformat}
> This seems to be merged to one mapreduce job correctly but custom partitioner information
was lost.
> {noformat}
> C1 = group B1 by col1 PARTITION BY org.apache.pig.test.utils.SimpleCustomPartitioner
parallel 2;
> C2 = group B2 by col1 parallel 2;
> {noformat}
> This seems to be merged even though they should run on two different partitioner.

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