What is Dumbo MapReduce in Hadoop?

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I am trying to run a Dumbo MapReduce command on hadoop cluster but getting the following error.

15/03/02 17:55:28 ERROR streaming.StreamJob: Job not successful. Error: NA 15/03/02 17:55:28 INFO streaming.StreamJob: killJob... Streaming Command Failed!

It seems that I need to provide the path to Hadoop streaming jar. How can I find this and what is Hadoop streaming jar?

My dumbo command is as following:

dumbo start test_dumbo6.py -hadoop /apps/hadoop/ -input /storage/user/jj/json.log -output ipcounts2
Sep 22, 2018 in Big Data Hadoop by Neha
• 6,280 points
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1 answer to this question.

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Doc on Hadoop Streaming : http://hadoop.apache.org/docs/r1.2.1/streaming.html

Hadoop streaming is a part of hadoop core so should be available in $Hadoop_HOME/lib directory.

This library can be added to your job by adding an additional argument :

-libjar <path_to_jar>
answered Sep 22, 2018 by Frankie
• 9,810 points

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