Tsk tsk, silly of me. Of course I could do that. Thanks for the confirmation Regards Saptarshi
On Tue, Jul 28, 2009 at 11:25 AM, Harish Mallipeddi < [email protected]> wrote: > Why do you want to start 2 tasktrackers on X? Just increase the no. of map > & reduce slots on X and that should be enough to take advantage of the extra > processing power on X. > > - Harish > > > On Tue, Jul 28, 2009 at 8:10 PM, Saptarshi Guha > <[email protected]>wrote: > >> Hello, >> Not sure if this has been asked or answered. >> Suppose I have tasktrackers A1,A2,A3 each with 4 cores and 16GB ram. >> >> mapred.tasktracker.map.tasks.maximum = 6 >> mapred.tasktracker.reduce.tasks.maximum = 4 >> >> Now suppose I have one more machine(X) with 8 cores and 32GB ram. >> >> Since (if i'm not mistaken) tasktrackers talk to the jobtracker, can I >> take >> advantage of X by >> a) A1,A2,A3 each have the same hadoop-site.xml with the above values for >> mapred.* >> b.0) on B, i have a hadoop-site.xml with these valus >> >> mapred.tasktracker.map.tasks.maximum = 5 >> mapred.tasktracker.reduce.tasks.maximum = 3 >> >> and start * one * tasktracker. >> b.1) Then edit hadoop-site.xml, change the tasktracker port (if there is >> such a thing) and >> >> b.2) start *another* tasktracker. >> >> We can skip b.1) if there is no such thing as a tasktracker port. >> Hence I wil have /two/ tasktrackers running on X, one on Ai. and thus >> take >> advantage of X. >> >> Is this at all possible? Or am i talking nonsense? >> >> ANy pointers appreciated >> Regards >> Saptarshi >> > > > > -- > Harish Mallipeddi > http://blog.poundbang.in >
