Ravi, On Wed, Mar 24, 2010 at 9:32 PM, Ravi Phulari <rphul...@yahoo-inc.com> wrote: > Hello Abhishek , > > Unless you have modified conf/mapred-site.xml file MapReduce will use > configuration values specified in $HADOOP_HOME/src/mapred/mapred-default.xml > In this configuration file mapred.map.tasks is configured as 2. And due to > this your job is running 2 map tasks. > > <property> > <name>mapred.map.tasks</name> > <value>2</value> > <description>The default number of map tasks per job. > Ignored when mapred.job.tracker is "local". > </description> > </property>
I tried setting mapred.map.tasks to 1 but the jobtracker still started 2 map tasks. However, setting # map tasks to 1 for "loadgen" worked. Cheers, Abhishek
