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From Leo Leung <lle...@ddn.com>
Subject RE: Child error
Date Tue, 12 Mar 2013 16:57:48 GMT
or https://issues.apache.org/jira/browse/MAPREDUCE-4857
Which is fixed in 1.0.4


From: Amit Sela [mailto:amits@infolinks.com]
Sent: Tuesday, March 12, 2013 5:08 AM
To: user@hadoop.apache.org
Subject: Re: Child error

Hi Jean-Marc,
I am running Hadoop 1.0.3, and I did see this issue you've mentioned but the exit status in
the issue is 126 and sometimes I get 255.
Any ideas what do theses status codes mean ?
Did you suffer this issue and upgraded to 1.0.4 ? If so, How "smooth" is such upgrade (shouldn't
differ from 1.0.3 that much no ?)

Thanks!


On Tue, Mar 12, 2013 at 1:40 PM, Jean-Marc Spaggiari <jean-marc@spaggiari.org<mailto:jean-marc@spaggiari.org>>
wrote:
Hi Amit,

Which Hadoop version are you using?

I have been told it's because of
https://issues.apache.org/jira/browse/MAPREDUCE-2374

JM

2013/3/12 Amit Sela <amits@infolinks.com<mailto:amits@infolinks.com>>:
> Hi all,
>
> I have a weird failure occurring every now and then during a MapReduce job.
>
> This is the error:
>
> java.lang.Throwable: Child Error
> at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
> Caused by: java.io.IOException: Task process exit with nonzero status of
> 255.
> at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
>
> And sometimes it's the same but with status of 126.
>
> Any ideas ?
>
> Thanks.


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