modcluster + JBoss AS 7.1.1 cannot detect nodes

[keiji13]

hi,

I am trying to create a clustered environment with modcluster 1.2.0 and two machines with JBoss AS 7.1.1 installed. But when I run JBoss in both machines, the nodes aren't detected and displayed in the modcluster manager. JBoss is running as domain.

Please help.

Thanks!

[pferraro]

Is httpd configured to use mod_advertise?  I will need more details (e.g. relevant bit from your configuration) in order to diagnose the problem.

[keiji13]

I'm using the same configurations that I have when I was still using jboss 7.1.0. The only difference is that the nodes using JBoss 7.1.0 can be detected, whereas the nodes using 7.1.1 cannot.

When i try putting a proxy-list inside the modcluster subsystem, the node can be detected but is undefined. And when I start the second machine, I get this error and then the node is removed:

[Server:server-three] 09:24:28,815 ERROR [org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) Error [MEM: MEM: Can't read node: {4}] sending command STATUS to proxy 10.128.50.149/10.128.50.149:10001, configuration will be reset

I have this configuration inside my httpd.conf:

ManagerBalancerName other-server-group

	KeepAliveTimeout 60
	MaxKeepAliveRequests 0
	AdvertiseFrequency 5
	EnableMCPMReceive
	AllowDisplay On

[ranga033]

Keiji, are you running both the JBoss AS7 server instances in the same machine ? I am also facing a similar problem. Still figuring out how to how to set the node name. I think that might solve the problem.

[ranga033]

Update : adding instance-id="${jboss.node.name}" to <subsystem xmlns="urn:jboss:domain:web:1.1... solves this issue.

Personally I feel this could be a JBoss issue, but it does work when you add the above.

More about this in - https://community.jboss.org/message/727174

[rhusar]

Yes, this is a known issue, see : https://issues.jboss.org/browse/JBPAPP-8451