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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1971) Constructing a JobConf without a class leads to a very misleading error message.
Date Sat, 06 Oct 2007 12:23:52 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12532856
] 

Hudson commented on HADOOP-1971:
--------------------------------

Integrated in Hadoop-Nightly #263 (See [http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/263/])

> 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: 0.15.0
>
>         Attachments: HADOOP-1971.patch, 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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