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Re: Task Attempt Failed
I get those too.  It's probably this issue:


If you go look in the task tracker log on the node that had the failed
task you'll probably see that "Text File Busy" message in there.

Looks like this is fixed in newer releases of CDH.


On 10/08/2012 08:28 AM, Dave Shine wrote:
> I'm starting to see the following error show up, but I don't know what it is trying to tell me.  Does anyone know what this error means?
> 12/10/08 03:13:12 INFO mapred.JobClient: Task Id : attempt_201209281640_6895_m_007292_0, Status : FAILED
> java.lang.Throwable: Child Error
>                  at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:242)
> Caused by: java.io.IOException: Task process exit with nonzero status of 126.
>                  at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:229)
> The task is able to complete on the next attempt, so the job does not fail.  But, the job takes a couple of hours when I don't see this message, longer when I do.  And I need to get this job to complete faster if possible.
> I'm running CDH3U3.  Any help would be greatly appreciated.
> Thanks,
> Dave Shine
> Sr. Software Engineer
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