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From alx...@aim.com
Subject number of mapred slots
Date Tue, 18 Dec 2012 06:08:46 GMT

I was unable to find any information regarding relationship between mapred slots and number
of cpus on the net. All I found was that it is advisable to schedule two processes for one
cpu.  If this is true, then for a slave  node with dual core( two cpus) that runs datanode,
tasktracker, hbase regionserver and zookeeper, theoretically there is no space to run an additional
mapred task. Any comment on this is welcome.

In general what is the mapred slot and how is it related to number of cpu cores?

Thanks in advance.

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