The jobtracker does not have to be a tasktracker. Just stop and don't start the tasktracker process. Bill
On Sun, Mar 29, 2009 at 12:00 PM, Saptarshi Guha <[email protected]>wrote: > Hello, > A machine X which is the master: it is the jobtracker, namenode and > secondary namenode. > It is not in the slaves file and is not part of the HDFSHowever in > the mapreduce web page, I notice it is being used as a tasktracker. > Is the jobtracker always a tasktracker? I'd rather not place too much > load on the one machine which plays so many roles. > (Hadoop 0.19.0) > > Thanks > Saptarshi >
