Hi
I have done some tests in my Pseudo Mode(CDH4.1.2)with MV2 yarn,and : According to the doc: *mapreduce.jobtracker.address :*The host and port that the MapReduce job tracker runs at. If "local", then jobs are run in-process as a single map and reduce task. *mapreduce.job.maps (default value is 2)* :The default number of map tasks per job. Ignored when mapreduce.jobtracker.address is "local". I changed the mapreduce.jobtracker.address = Hadoop:50031. And then run the wordcount examples: hadoop jar hadoop-mapreduce-examples-2.0.0-cdh4.1.2.jar wordcount input output the output logs are as follows: .... Job Counters Launched map tasks=1 Launched reduce tasks=1 Data-local map tasks=1 Total time spent by all maps in occupied slots (ms)=60336 Total time spent by all reduces in occupied slots (ms)=63264 Map-Reduce Framework Map input records=5 Map output records=7 Map output bytes=56 Map output materialized bytes=76 .... i seem to does not work. I thought maybe my input file is small-just 5 records . is it right? regards 2013/3/14 Sai Sai <saigr...@yahoo.in> > > > In Pseudo Mode where is the setting to increase the number of mappers or > is this not possible. > Thanks > Sai >