Binding on specific interface

mohitanchlia Dec 10, 2009 12:22 PM

We use standard statup script with -b 0.0.0.0. We recently got new machine that have multiple interface. For some reason jboss binds to first interface as show in ifconfig -a even though default route is set to take a different interface. I am trying not to use -b so that we don't have to change our install. Is there a way on OS or someother way to avoid doing that. Why doesn't jboss or jgroups uses default route to bind the address?

1. Re: Binding on specific interface

brian.stansberry Dec 10, 2009 12:25 PM (in response to mohitanchlia)

What binds to the first interface? Please be specific.
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2. Re: Binding on specific interface

mohitanchlia Dec 10, 2009 6:41 PM (in response to mohitanchlia)

Multicast clustering binds on the first interface. Does it use "hostname" to get the ip address?
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3. Re: Binding on specific interface

brian.stansberry Dec 11, 2009 10:57 AM (in response to mohitanchlia)

If you start JBoss like this, with no other jgroups-related system properties set:

./run.sh -b 0.0.0.0 -c ...

JBoss will detect that 0.0.0.0 is invalid for JGroups binding and will set system property jgroups.bind_addr to the value of java.net.InetAddress.getLocalHost(). That in turn will resolve the InetAddress associated with the machine's host name.

So, configure your OS to ensure the machine's hostname resolves to the interface you want.
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