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From Günter Hipler <guenter.hip...@unibas.ch>
Subject debugging of map reduce tasks
Date Tue, 28 May 2013 13:17:28 GMT
Hi

sorry, just a beginners question...

I'm trying to debug a simple Map/Reduce task (MaxTemperature example in 
"Hadoop The definite guide")

My understanding: within a standalone distribution it should be possible 
to debug even the Map and Reduce tasks.

I found some descriptions for Eclipse as well as for Intellij
http://www.thecloudavenue.com/2012/10/debugging-hadoop-mapreduce-program-in.html
http://vichargrave.com/debugging-hadoop-applications-with-intellij/
http://vichargrave.com/create-a-hadoop-build-and-development-environment-for-hadoop/

Personally I'm working with intellij

I can start the task, I get a correct result but the process doesn't 
stop in the Mapper or Reducer even with breakpoints. I use the old and 
new API

Thanks for some hints!

Günter



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Universitätsbibliothek
Günter Hipler
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