You may run out of memory,out of disk. If SNN is also running on the same machine then you are totally screwed in case of any breakdown
shashwat shriparv <[email protected]> wrote: >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 >> >> -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.
