Keren, What was your configured property at the TaskTrackers? The right property is mapred.tasktracker.{map,reduce}.tasks.maximum, and applies to each TaskTracker individually (so all your TT mapred-site.xml need to carry that property to limit their slots).
On 25-Nov-2011, at 8:45 AM, Keren Ouaknine wrote: > Hello, > > I configured mapred-site.xml with one mapper, still the web ui shows: > Map shows capacity 40 = 2 x #machines. I was expecting it to be 20. > Any idea? > > Thanks, > Keren > > > Running Map Tasks Running Reduce Tasks Total Submissions Nodes > Occupied Map Slots Occupied Reduce Slots Reserved Map Slots > Reserved Reduce Slots Map Task Capacity Reduce Task Capacity Avg. > Tasks/Node Blacklisted Nodes Graylisted Nodes Excluded Nodes > 34 20 7 20 34 20 0 0 40 20 > 3.00 0 0 0 > > -- > Keren Ouaknine > Cell: +972 54 2565404 > Web: www.kereno.com > >