Fedora actually
On 9/9/10 2:20 AM, Steve Loughran wrote:
On 09/09/10 06:28, Mark wrote:
I am getting the following errors from my datanodes when I start the
namenode.
2010-09-08 14:17:40,690 INFO org.apache.hadoop.ipc.RPC: Server at
hadoop1/10.XXX.XXX.XX:9000 not available yet, Zzzzz...
2010-09-08 14:17:42,690 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: hadoop1/10.XXX.XXX.XX:9000. Already tried 0 time(s).
2010-09-08 14:17:43,691 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: hadoop1/10.XXX.XXX.XX:9000. Already tried 1 time(s).
2010-09-08 14:17:44,691 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: hadoop1/10.XXX.XXX.XX:9000. Already tried 2 time(s).
2010-09-08 14:17:45,692 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: hadoop1/10.XXX.XXX.XX:9000. Already tried 3 time(s).
....
If I remove the following line from /etc/hosts then the datanodes will
be able to connect:
127.0.0.1 localhost.localdomain localhost hadoop1
Can someone explain why this is happening? I feel like I shouldn't have
to alter my hosts file to get this up and running.
That's an ubuntu machine, isn't it?
seen that
http://www.1060.org/blogxter/entry?publicid=121ED68BB21DB8C060FE88607222EB52
I think someone decided patching up the local hostname to map to
127.0.0.1 was useful for laptops, but it stops your machines being
visible over the network.
Edit /etc/hosts and recognise that many of the features that make
ubuntu a good desktop Linux (good device support, power management,
laptop-friendly etc), make it a weak server linux (unstable, too
biased towards laptops on unmanaged networks)
