Saturday, 3 November 2012

Debugging hadoop mapreduce jobs using eclipse in local setup

Add the following line to 'conf/':

export HADOOP_OPTS="-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5009"

Then setup eclipse to connect to the above port (5009) using remote debugging configuration.

Detailed steps:

I tried running this is in the Stand alone configuration of Hadoop.
Have to try this in the pseudo-distributed mode as well, does it work ?

Here is an article that claims to debug the daemon processes:


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