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From "Sriranjan Manjunath (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-964) Handling null in skewed join
Date Thu, 17 Sep 2009 07:29:57 GMT

     [ https://issues.apache.org/jira/browse/PIG-964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sriranjan Manjunath updated PIG-964:
------------------------------------

    Description: For null tuples, the tuple size is calculated incorrectly and thus  skewed
join ends up expecting a large number of reducers. Further, skewed join should not bail out
after the second job if the number of reducers specified by the user is low. It should print
a warning message and continue execution.  (was: The tuple size is calculated incorrectly
and thus the skewed join ends up expecting a large number of reducers. Further, skewed join
should not bail out after the second job if the number of reducers specified by the user is
low. It should print a warning message and continue execution.)
        Summary: Handling null  in skewed join  (was: Handling null keys in skewed join)

> Handling null  in skewed join
> -----------------------------
>
>                 Key: PIG-964
>                 URL: https://issues.apache.org/jira/browse/PIG-964
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Sriranjan Manjunath
>         Attachments: skjoin2b.patch
>
>
> For null tuples, the tuple size is calculated incorrectly and thus  skewed join ends
up expecting a large number of reducers. Further, skewed join should not bail out after the
second job if the number of reducers specified by the user is low. It should print a warning
message and continue execution.

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