-Host NameNode, DataNode, JobTracker or TaskTracker on the same machine
Jeff LI 2013-02-14, 17:10
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.