Enable Debug logging for a job

[Siddhi Mehta]

I am using hadoop2.3.0 with MR2.

I tried enablibg debugging logging for a map/reduce tasks by setting to
mapreduce.map.log.level  and mapreduce.reduce.log.level to DEBUG in
mapred-site.xnl

Am i missing something or is this a known issue.

Aprreciate your response.

Thanks,
Siddhi