I'm moving off AWS MapReduce to our own cluster, I'm installing Hadoop on
Ubuntu Server 12.10.
I see a .deb installer and installed that, but it seems like files are all
over the place `/usr/share/Hadoop`, `/etc/hadoop`, `/usr/bin/hadoop`. And
the documentation is a bit harder to follow: http://hadoop.apache.org/docs/r1.1.2/cluster_setup.html
So I just wonder if this installer is the best approach, or if it'll be
easier/better to just install the basic build in /opt/hadoop and perhaps the
docs become easier to follow. Thoughts?