Hello Mark, This is due to a default configuration (tasktracker slots, as we generally call it) and is covered in the FAQ: http://wiki.apache.org/hadoop/FAQ#I_see_a_maximum_of_2_maps.2BAC8-reduces_spawned_concurrently_on_each_TaskTracker.2C_how_do_I_increase_that.3F
On Fri, May 27, 2011 at 11:56 AM, Mark question <markq2...@gmail.com> wrote: > Hi, > > I tried changing "mapreduce.job.maps" to be more than 2 , but since I'm > running in pseudo distributed mode, JobTracker is local and hence this > property is not changed. > > I'm running on a 12 core machine and would like to make use of that ... Is > there a way to trick Hadoop? > > I also tried using my virtual machine name instead of "localhost", but no > luck. > > Please help, > Thanks, > Mark > -- Harsh J
