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From Geoffry Roberts <geoffry.robe...@gmail.com>
Subject Same Hadoop, Same MR Job, Different cluster
Date Wed, 08 Feb 2012 21:45:46 GMT
All,

I am setting up a new cluster on some new machines and am experiencing
errors that did not happen before.  I am using the same Hadoop-1.0 with the
same configuration, and the same jvm on both machines.  The thing that is
different is the OS. The old cluster was Ubuntu 10.10 and the new is Ubuntu
11.10.

Since the OS seems to be the difference, are there any issues with
Hadoop-1.0 and Ubuntu 11.10?

Also, I remember at one time Hadoop having troubles with ipv6.  Do I still
need to disable it?

The same job runs on the old but not on the new.

Error message is below.

Thanks

12/02/08 13:29:39 INFO mapred.JobClient:  map 0% reduce 0%
12/02/08 13:29:46 INFO mapred.JobClient: Task Id :
attempt_201202081216_0003_m_
000099_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)

12/02/08 13:29:46 WARN mapred.JobClient: Error reading task
outputhttp://q001q:50060/tasklog?plaintext=true&attemptid=attempt_201202081216_0003_m_000099_0&filter=stdout
12/02/08 13:29:46 WARN mapred.JobClient: Error reading task
outputhttp://q001q:50060/tasklog?plaintext=true&attemptid=attempt_201202081216_0003_m_000099_0&filter=stderr
12/02/08 13:29:52 INFO mapred.JobClient: Task Id :
attempt_201202081216_0003_r_000011_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)


-- 
Geoffry Roberts

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