Wednesday, April 12, 2006

WebLogic JMS Clustering

1) JMS Client Failover.

During WebLogic JMS clustering session couple of questions raised about failover capabilities of JMS producer and consumer clients.
As I said in 8.1 WebLgoic returns Exception when server becomes unavailable.
http://e-docs.bea.com/wls/docs81/jms/config.html#1055931
I just happened to the look at release note of the WebLogic 9.2 beta today, with pleasant surprise found that BEA already addressed above shortcomings with 9.2 beta (Transparent consumer client failover) and 9.1 (Transparent producer client failover) releases.

How robust the client failover is? Only time will tell!!!
http://edocs.bea.com/wls/docs92/jms/recover.html#AutomaticFailoverforJMSClients

2) JMS and WebLogic Security framework.
In addition security of the JNDI look up for JMS destination, it is also possible to protect operations of the destination.
http://e-docs.bea.com/wls/docs92/secwlres/types.html#wp1209997

Does your application need to implement security at this level? Like other J2EE security feature, it depends on your deployment and security requirements of your application.

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