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Date: Wed, 3 Oct 2007 05:24:51 -0700 (PDT)
From: "Enis Soztutar (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Updated: (HADOOP-1971) Constructing a JobConf without a
 class leads to a very misleading error message.
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     [ https://issues.apache.org/jira/browse/HADOOP-1971?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Enis Soztutar updated HADOOP-1971:
----------------------------------

    Status: Patch Available  (was: Open)

> Constructing a JobConf without a class leads to a very misleading error message.
> --------------------------------------------------------------------------------
>
>                 Key: HADOOP-1971
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1971
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.14.2
>         Environment: Centos, java 1.5
>            Reporter: Ted Dunning
>            Assignee: Enis Soztutar
>            Priority: Minor
>             Fix For: 0.14.2
>
>         Attachments: notSetJarError_v1.patch
>
>
> If this line from a typical map/reduce program
>         JobConf conf = new JobConf(Flatten.class);
> has the argument deleted then I get a message that the input format that I specify cannot be found.  That message leads a naive user on a rat chase.  I only corrected this by bisecting against a working program.

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