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Date: Mon, 5 Jul 2010 01:03:50 -0400 (EDT)
From: "Amareshwari Sriramadasu (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-1888) Streaming overrides user given
 output key and value types.
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-1888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12885104#action_12885104 ] 

Amareshwari Sriramadasu commented on MAPREDUCE-1888:
----------------------------------------------------

Patch looks good.
A couple of mumak tests failed with NoClassDefFoundError, they passed on my local machine. TestSimulatorDeterministicReplay failed because of MAPREDUCE-1834.
Will check this in.

> Streaming overrides user given output key and value types.
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-1888
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1888
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/streaming
>    Affects Versions: 0.21.0
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>         Attachments: 1888.patch, 1888.v1.patch, 1888.v2.patch, 1888.v3.patch, 1888.v4.patch
>
>
> The following code in StreamJob.java overrides user given output key and value types.
> {code}
>     idResolver.resolve(conf.get(StreamJobConfig.MAP_OUTPUT,
>         IdentifierResolver.TEXT_ID));
>     conf.setClass(StreamJobConfig.MAP_OUTPUT_READER_CLASS,
>       idResolver.getOutputReaderClass(), OutputReader.class);
>     job.setMapOutputKeyClass(idResolver.getOutputKeyClass());
>     job.setMapOutputValueClass(idResolver.getOutputValueClass());
>     
>     idResolver.resolve(conf.get(StreamJobConfig.REDUCE_OUTPUT,
>         IdentifierResolver.TEXT_ID));
>     conf.setClass(StreamJobConfig.REDUCE_OUTPUT_READER_CLASS,
>       idResolver.getOutputReaderClass(), OutputReader.class);
>     job.setOutputKeyClass(idResolver.getOutputKeyClass());
>     job.setOutputValueClass(idResolver.getOutputValueClass());
> {code}

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