use mapred.tasktracker.reduce.tasks in mapred-site.xml the default value is 2...Which means that on this task tracker it will not run more than 2 reducer tasks at any given point of time..
Regards, Som Shekhar Sharma +91-8197243810 On Thu, Aug 8, 2013 at 7:19 AM, Azuryy Yu <[email protected]> wrote: > Hi Dears, > > Can I specify how many slots to use for reduce? > > I know we can specify reduces tasks, but is there one task occupy one slot? > > it it possible that one tak occupy more than one slot in Hadoop-1.1.2. > > Thanks. >
