Indeed, that was the problem, thanks! Keren On Mon, Nov 28, 2011 at 10:46 PM, Harsh J <ha...@cloudera.com> wrote:
> Keren, > > Seems to work alright for me once I set these and restart each > TaskTracker. Perhaps the problem is merely that you're missing an opening > <property> XML tag for the second configuration, in that copy-paste below? > > > On Tue, Nov 29, 2011 at 8:44 AM, Keren Ouaknine <ker...@gmail.com> wrote: > >> Thanks Harsh, the property in already set to one on all the nodes (see >> below). >> What do you reckon? >> >> <property> >> <name>mapred.tasktracker.map.tasks.maximum</name> >> <value>1</value> >> <description>The maximum number of map tasks that will be run >> simultaneously by a task tracker.</description> >> </property> >> <name>mapred.tasktracker.reduce.tasks.maximum</name> >> <value>1</value> >> <description>The maximum number of reduce tasks that will be run >> simultaneously by a task tracker.</description> >> </property> >> </configuration> >> >> >> On Thu, Nov 24, 2011 at 10:45 PM, Harsh J <ha...@cloudera.com> wrote: >> >>> 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 TasksRunning Reduce TasksTotal SubmissionsNodesOccupied Map >>> SlotsOccupied Reduce Slots Reserved Map SlotsReserved Reduce SlotsMap >>> Task CapacityReduce Task CapacityAvg. Tasks/NodeBlacklisted NodesGraylisted >>> NodesExcluded Nodes >>> 3420720<http://10.239.24.12:50030/machines.jsp?type=active> >>> 34200040203.000<http://10.239.24.12:50030/machines.jsp?type=blacklisted> >>> 0 >>> <http://10.239.24.12:50030/machines.jsp?type=graylisted>0<http://10.239.24.12:50030/machines.jsp?type=excluded> >>> -- >>> Keren Ouaknine >>> Cell: +972 54 2565404 >>> Web: www.kereno.com >>> >>> >>> >>> >> >> >> -- >> Keren Ouaknine >> Cell: +972 54 2565404 >> Web: www.kereno.com >> >> >> > > > -- > Harsh J > -- Keren Ouaknine Cell: +972 54 2565404 Web: www.kereno.com