you set the " mapred.tasktracker.map.tasks.maximum " in your job means nothing. Because Hadoop mapreduce platform only checks this parameter when it starts. This is a system configuration.
You need to set it in your conf/mapred-site.xml file and restart your hadoop mapreduce. On Fri, Mar 9, 2012 at 7:32 PM, Mohit Anchlia <mohitanch...@gmail.com>wrote: > I have mapred.tasktracker.map.tasks.maximum set to 2 in my job and I have 5 > nodes. I was expecting this to have only 10 concurrent jobs. But I have 30 > mappers running. Does hadoop ignores this setting when supplied from the > job? >
