I am using Ubuntu 9 and I start two nodes with:
erl -name node1 -setcookie demo
and
erl -name node2 -setcookie demo
yet when I run "nodes()" the nodes do not see each other and it returns an empty list. Anyone know why?
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65answers:
1
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A:
Because they are not connected unless they communicate with each other, e.g. by one pinging the other:
(node1@<host>)> net_adm:ping(node2@<host>).
Note that if you checked the nodes with net_adm:names(), they would have been visible via epmd.
Zed
2010-01-30 18:51:36
I did that but it returns "pang". Each node if pinging itself gets a "Pong" though
Zubair
2010-01-30 21:15:50
and net_adm:names() returns:{error,nxdomain}
Zubair
2010-01-30 21:16:53
Is your hostname included in the hosts file?
Zed
2010-01-30 21:40:43
Also, try using -sname <name> instead. This will create local nodes which are easier to connect. (-sname creates short host names and -name creates long ones).
Adam Lindberg
2010-01-31 00:07:59
How do I add my hostname to the hosts file?
Zubair
2010-02-01 14:00:12
I tried with -sname instead of -name when running erl, but still the nodes do not see each other
Zubair
2010-02-01 14:00:40
There should be a hosts file at /etc/hosts, or \Windows\system32\drivers\etc\hosts. You must add host to be translated into 127.0.0.1, e.g. `127.0.0.1 localhost myhost`. Alternatively you could use localhost, or 127.0.0.1 as your hostname to check if things are working...
Zed
2010-02-02 11:45:26