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From bikash sharma <sharmabiks...@gmail.com>
Subject observe the effect of changes to Hadoop
Date Fri, 25 Mar 2011 14:10:26 GMT
Hi,
For my research project, I need to add a couple of functions in
JobTracker.java source file to include additional information about
TaskTrackers resource usage through heartbeat messages. I made those changes
to JobTracker.java file. However, I am not  very clear how to see these
effects. I mean what are the next steps in terms of building the entire
Hadoop code base, using the built distribution and installing it again in
the cluster, etc?
Any elaborate updates on these will be very useful since I do not have much
experience in doing modifications to Hadoop like huge code base and
observing the effects of these changes.

Thanks,
Bikash

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