We have a cluster of 3 nodes to provide high availability to our clients.
They use "jboss1:1100,jboss2:1100,jboss3:1100" as jndi url to
connect to the server.
Everything works fine as long as on all nodes at least the OS is running
and at least one JBoss is up. However, if one node is completely down
(turned off), the JNDI lookup takes several minutes.
I checked org.jnp.interfaces.NamingContext and for the lookup a socket
is opened to all nodes in the url. Now, if a node is down there is a long
timeout which causes the whole lookup to be blocked. Hence, instead of
high availability we have multiple points of failure (if any one of the three
nodes crashes we have a downtime).
Any workaround? We think about using a load balancer or patch the
PS: debian linux, JBoss-3.2.3RC1. From looking at the code it seems to
be the same in JBoss-4.0.0RC1.