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From Florin P <florinp...@yahoo.com>
Subject A question mapred.tasktracker.map.tasks.maximum
Date Mon, 13 Jun 2011 18:49:43 GMT
Hello!
  I've read about mapred.tasktracker.map.tasks.maximum that represents the maximum number
of map tasks that will be run simultaneously by a task tracker. Given the following scenario:
1. You have a job fair scheduler
2. Two running Map/Reduce jobs with different values of mapred.tasktracker.map.tasks.maximum
(for example MR_1 with  
mapred.tasktracker.map.tasks.maximum = 3
and MR_2 with mapred.tasktracker.map.tasks.maximum = 1)

Under these circumstances, how tasktracker will handle the two MR jobs regarding the number
of maps that will be executed in parallel?
Please explain what could be a possible behavior of the tasktraker in the above scenario.
  Thank you.
Regards,
 Florin  


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