Two durable subscribers with same ID in Weblogic 9.2 MP 2?

External JMS durable topic subsribers of a distributed topic destination are connected to a Weblogic cluster with 3 Nodes. The clients are started with shell scripts on different hosts. A watchdog is checking if the clients are still alive; if not, they are restarted automatically. Randomly a node of the cluster is chosen and the client is reconnected (Note: Weblogic does not support durable topic subscribers for distributed destinations, this means you cannot connect with a cluster URL)
          However, from time to time we see two durable topic subscribers with the SAME ID connected on two different destinations: one of them is active, the other is not.
          This should not be possible. Is this a Weblogic bug or a mis-configuration of our domain.
          Thanks,
          Peter

It turned out that our operating team stops the clients with "kill -9". I guess that this may be the reason that the durable subscribers remain registrated on the server? Of course, one should never use "kill -9", however sometimes this can not be avoided:
          - Weblogic 8.1 SP 4 could not startup if a durable "ghost" subscriber was registrated
          - Weblogic 8.1 SP 6 could handle this in a robust way!
          - Weblogic 9.2 MP1/2 seems to go to an unstable state. Once, for example, we registrated 1635 connections for one Weblogic instance with the state "CLOSE_WAIT" (Of course you may argue this may be the cause of our inconvinience. However, normally this value is less than 20)
          The fact that the durable subscribers are not correctly placed in the Weblogic console may not be correlated to the problem above, but just another bug. It is just annoying, as it is nearly impossible to unregister the durable "ghost" subscriber via the console. Sometimes even the subscriber id is not shown.
          Do my comments sound reasonable?
          Thanks, Peter

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