[ https://issues.apache.org/jira/browse/MAPREDUCE-1068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12772593#action_12772593 ] 

Todd Lipcon commented on MAPREDUCE-1068:
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I'm not sure this is the right fix. Would it not be better to print out any exception caught at line 128? It currently says '//ignore, since log will already be printed' but this is clearly not true. In working on MAPREDUCE-967 I found that changing that to LOG.fatal("Error in stream job", ex) printed errors as expected.

> In hadoop-0.20.0 streaming job do not throw proper verbose error message if file is not present
> -----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1068
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1068
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/streaming
>    Affects Versions: 0.20.1
>            Reporter: Peeyush Bishnoi
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.20.1, 0.20.2, 0.21.0, 0.22.0
>
>         Attachments: patch-1068.txt
>
>
> With hadoop-0.20.0 proper error message is not thrown , when streaming job is submitted and if file is not present to be distributed with "-file" option. But with hadoop-0.18.* proper verbose message is thrown if file is not present and it is easy for the users to debug.
> For example:
> With hadoop-0.20.0:
> $ hadoop jar $HADOOP_HOME/hadoop-streaming.jar -Dmapred.job.queue.name=general  -input /user/simon/test1.txt -output /user/simon/test.out -mapper "/bin/cat" -file dummy -reducer "/bin/cat"
> Streaming Job Failed!
> With hadoop-0.18.*:
> $ hadoop  jar $HADOOP_HOME/hadoop-streaming.jar -input /user/simon/test1.txt -output /user/simon/test.out -mapper "/bin/cat" -file dummy -reducer "/bin/cat"
> 09/10/06 10:06:49 ERROR streaming.StreamJob: Unexpected value "Argument : /home/simon/dummy doesn't exist." found while processing  -file
> ---

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