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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-885) Better error messages for debugging serde problem at reducer input
Date Sun, 18 Oct 2009 00:15:31 GMT

    [ https://issues.apache.org/jira/browse/HIVE-885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12766990#action_12766990
] 

Zheng Shao commented on HIVE-885:
---------------------------------

Yes, that is determined by ExecDriver.java:437:
{code}
    job.setMapOutputValueClass(BytesWritable.class);
{code}



> Better error messages for debugging serde problem at reducer input
> ------------------------------------------------------------------
>
>                 Key: HIVE-885
>                 URL: https://issues.apache.org/jira/browse/HIVE-885
>             Project: Hadoop Hive
>          Issue Type: Improvement
>    Affects Versions: 0.5.0
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>         Attachments: HIVE-885.1.patch
>
>
> Sometimes we are seeing serde exceptions at the reducer side with hadoop 0.20.
> This should help debug the problem.

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