I have found solution for this. 1.mapreduce.map.log.level can take values as OFF, FATAL, ERROR, WARN, INFO, DEBUG, TRACE and ALL. The setting could be overridden if "mapreduce.job.log4j-properties-file" is set. 2. mapreduce.reduce.log.level can also take values as OFF, FATAL, ERROR, WARN, INFO, DEBUG, TRACE and ALL. The setting could be overridden if "mapreduce.job.log4j-properties-file" is set.So its better to make sure that "mapreduce.job.log4j-properties-file" is not set. We have to set following properties in the mapred-site.xml. <property> <name>mapreduce.map.log.level</name> <value>OFF</value> </property> <property> <name>mapreduce.reduce.log.level</name> <value>OFF</value> </property> ... View more