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From Harsh J <ha...@cloudera.com>
Subject Re: Error reading task output
Date Fri, 15 Jun 2012 04:05:46 GMT
Do you ship a lot of dist-cache files or perhaps have a bad
mapred.child.java.opts parameter?

On Fri, Jun 15, 2012 at 1:39 AM, Shamshad Ansari <sansari@apixio.com> wrote:
> Hi All,
> When I run hadoop jobs, I observe the following errors. Also, I notice that
> data node dies every time  the job is initiated.
>
> Does any one know what may be causing this and how to solve this?
>
> ======================
>
> 12/06/14 19:57:17 INFO input.FileInputFormat: Total input paths to process :
> 1
> 12/06/14 19:57:17 INFO mapred.JobClient: Running job: job_201206141136_0002
> 12/06/14 19:57:18 INFO mapred.JobClient:  map 0% reduce 0%
> 12/06/14 19:57:27 INFO mapred.JobClient: Task Id :
> attempt_201206141136_0002_m_000001_0, Status : FAILED
> 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 1.
>         at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
>
> 12/06/14 19:57:27 WARN mapred.JobClient: Error reading task
> outputhttp://node1:50060/tasklog?plaintext=true&attemptid=attempt_201206141136_0002_m_000001_0&filter=stdout
> 12/06/14 19:57:27 WARN mapred.JobClient: Error reading task
> outputhttp://node1:50060/tasklog?plaintext=true&attemptid=attempt_201206141136_0002_m_000001_0&filter=stderr
> 12/06/14 19:57:33 INFO mapred.JobClient: Task Id :
> attempt_201206141136_0002_r_000002_0, Status : FAILED
> 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 1.
>         at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
>
> 12/06/14 19:57:33 WARN mapred.JobClient: Error reading task
> outputhttp://node1:50060/tasklog?plaintext=true&attemptid=attempt_201206141136_0002_r_000002_0&filter=stdout
> 12/06/14 19:57:33 WARN mapred.JobClient: Error reading task
> outputhttp://node1:50060/tasklog?plaintext=true&attemptid=attempt_201206141136_0002_r_000002_0&filter=stderr
> ^Chadoop@ip-10-174-87-251:~/apixio-pipeline/pipeline-trigger$ 12/06/14
> 19:57:27 WARN mapred.JobClient: Error reading task
> outputhttp:/node1:50060/sklog?plaintext=true&attemptid=attempt_201206141136_0002_m_000001_0&filter=stdout
>
> Thank you,
> --Shamshad
>



-- 
Harsh J

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