The only way to do that is to drop the setting down to one and bounce the TaskTrackers.
-Joey On Tue, Jun 21, 2011 at 12:52 PM, Jonathan Zukerman <zukermanjonat...@gmail.com> wrote: > Hi, > Is there a way to set the maximum map tasks for all tasktrackers in my > cluster for a certain job? > Most of my tasktrackers are configured to handle 4 maps concurrently, and > most of my jobs don't care where does the map function run. But small part > of my jobs requires that no two map functions will run from the same IP at > the same time, i.e., the maximum number of map tasks for each tasktracker > should be 1 for these jobs. > Thanks! > Jonathan. -- Joseph Echeverria Cloudera, Inc. 443.305.9434
