If you are doing it for production all the process should be running on seperate machine as it will decrease the overload of the machine.
∞ Shashwat Shriparv On Thu, Feb 14, 2013 at 10:40 PM, Jeff LI <[email protected]> wrote: > Hello, > > Is there a good reason that we should not host NameNode, DataNode, > JobTracker or TaskTracker services on the same machine? > > Not doing so is suggested here http://wiki.apache.org/hadoop/NameNode, > but I'd like to know the reasoning of this. > > Thanks > > Cheers > > Jeff > >
