John Martyniak wrote:
When I run either of those on either of the two machines, it is trying
to resolve against the DNS servers configured for the external addresses
for the box.
Here is the result
Server: xxx.xxx.xxx.69
Address: xxx.xxx.xxx.69#53
OK. in an ideal world, each NIC has a different hostname. Now, that
confuses code that assumes a host has exactly one hostname, not zero or
two, and I'm not sure how well Hadoop handles the 2+ situation (I know
it doesn't like 0, but hey, its a distributed application). With
separate hostnames, you set hadoop up to work on the inner addresses,
and give out the inner hostnames of the jobtracker and namenode. As a
result, all traffic to the master nodes should be routed on the internal
network
