sorry i had a misunderstanding of the MapRed report output.
i did reduce mapreduce.tasktracker.map.tasks.maximum (number of concurrent maps
per node) from the default of 2 to 1.
i suppose if i want to do this on a per job/user basis i'll try out the hadoop
fair scheduler.
On Oct 19, 2010, at
(Moving to u...@.)
Isn't reducing the number of map tasks the easiest way to tune this?
Also: in 0.7 you can use NetworkTopologyStrategy to designate a group
of nodes as your hadoop "datacenter" so the workloads won't overlap.
On Tue, Oct 19, 2010 at 3:22 PM, Michael Moores wrote:
> Does it mak
