Is it possible there is another instance of GlassFish already running on
linuxgf170 and linuxgf180? You can log into those machines and run "netstat
-ln --program | grep 24848" and see if there is a process listening on that
port (I'm assuming linux here). The last column will give the process id and
name ("java" in the case of GlassFish).
If there is another process using the port then you'll have to resolve the
port conflict. Either by bringing the other process down or having the
instances run on another port. If you want to have the instances use a
different port then it may be easiest to delete the instances and create them
again using the --portbase option (see "create-instance --help" for more
info).
If there is not another process using the port then double check your network
configuration on the systems. I've seen similar errors reported on systems
with hostname resolution problems. So on each host make sure you can 'ping'
the other hosts. And check your /etc/hosts file on each system and make sure
they have an entry for the local machine's hostname. Something like (just an
example):
66.103.254.221 linuxgf170.your.domain.com linuxgf170
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