It's hard for me to say for sure without knowing for sure what your issue is. I'll I can do is *assume* the issue was due to slow or non-existent replies to intra-cluster calls made by the jboss:service=DefaultPartition service.
If that was the problem, then yes, using many smaller clusters could help isolate the problem to a few machines rather than having it effect all of them.
But be careful about the assumption above. In most use cases there are not a lot of calls over the jboss:service=DefaultPartition after the nodes have started. If you are seeing continued cluster-wide issues after startup, there's a good chance this is not the issue.
Please be sure to raise a support case on the customer support portal, where we have better tools available to diagnose your problem.
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I am the "customer" that incoutered this issue with log4j and NFS. In our TEST Jboss cluster, we solved this by installing all our JBOSS AS into a local file system insteed of NFS. Since then, it never happed again.
But just this morning, we had the same issue in our PRODUCTION environement. Meaning that all EJB calls inter-jboss where dreadfully slow. We solved it by restarting one of our Jboss that was somehow "stuck" ( but not by log4j that time!).
The problem is this: when just one Jboss server is stuck, the whole Jgroup cluster is stuck. This issue is terrible for us, because we have a big heterogenous cluster with 20 applications (nodes) on it. So when this issue araises, all the application are not working.
My question is this: if we switch to several homogenous cluster ( each application has it how small cluster (partition) of 2 to 4 nodes), will this leverage the effect of this issue ?
Thanks in advance.
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