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From <karanveer.si...@barclays.com>
Subject Hadoop Streaming Example - Issue
Date Tue, 05 Jun 2012 07:24:33 GMT
Hi,

I am trying to run a java program as a mapper using Hadoop Streaming but getting the following
error:

"Cannot run program "new_code.class": java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:460)"


The command being run is:

/usr/bin/hadoop jar /usr/lib/hadoop/contrib/streaming/hadoop-streaming-1.0.2.jar -file /home/hadoop/zql/demo/api/new_code.class
-mapper /home/hadoop/zql/demo/api/new_code.class -jobconf mapred.reduce.tasks=0 -input /rbbpoc/input/*
-output /rbbpoc/output2001


The new_code.java program is running fine for me in a stand alone mode and is accepting stdin
inputs. I have checked the permissions of the class file & they seem good.

Any inputs to help resolve the above issue will be helpful.


Regards,

Karan





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