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List:       hadoop-user
Subject:    Re: Library Issue
From:       Greg Roelofs <roelofs () yahoo-inc ! com>
Date:       2011-02-28 21:32:29
Message-ID: 201102282132.p1SLWTsm026872 () pbug ! corp ! yahoo ! com
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Adarsh Sharma <adarsh.sharma@orkash.com> wrote:

> But Still don't know why it fails in Map-reduce job.

> [hadoop@ws37-mah-lin hadoop-0.20.2]$ bin/hadoop jar wordcount1.jar
> org.myorg.WordCount /user/hadoop/gutenberg /user/hadoop/output1
> 11/02/28 15:01:45 INFO input.FileInputFormat: Total input paths to
> process : 3
> 11/02/28 15:01:45 INFO mapred.JobClient: Running job: job_201102281104_0006
> 11/02/28 15:01:46 INFO mapred.JobClient:  map 0% reduce 0%
> 11/02/28 15:01:56 INFO mapred.JobClient: Task Id :
> attempt_201102281104_0006_m_000000_0, Status : FAILED
> java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
 [...]
> Caused by: java.lang.UnsatisfiedLinkError: no jcuda in java.library.path

That would be why.  I don't know if "jcuda" is an external command, a
shared library, or a jar of some sort, but Hadoop wants it in the Java
library path (probably on all nodes).

Greg
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