Hello Adrian, thanks for Your reply. It is quite difficult to explain in short words, what (I think) is going on. We are developing a workforce management system communicating with an external network control system (electricity).
We need high availability. Therefore we use JBoss clustering and HAJMS and oracle RAC/TAF. As an example: we can interchange information with mobile units (cars) over GPRS or GSM via the network control system. Car --> network control system -> JBoss This interface between the network control system and JBoss is implemented as an mbean using nio and HAJMS to get information from the car to the application server. This mbean service is a cluster singleton service. In a test environement every 10 seconds a update information from the car is comming via socket and put into a ha queue. An MDB processes this information and triggers some business logic. I can see the log message every 10 seconds. If the message cannot be put into the queue, it is retried several times. And now I come to the point. JBoss comes back means I can see these log messages again and JBoss is ready for clients to connect (after databse was plug off for about one minute). No exceptions are seen afterwards . JBoss doesn't come back means I dont's see the log messages any longer and clients cannot connect (JBoss console is dead) and I can see exceptions (after database was plug off more than 10 minutes, which is the blocking timeout). The last exception is anonymous wrote : 10:15:09,218 WARN [LocalManagedConnectionFactory] Destroying connection that is not valid, due to the following exception: | java.sql.SQLException: ORA-12571: TNS: Fehler beim Paket-Schreiber | . Then nothing more happens. No reaction on shutdown request. I thought I found empirically a relation between the blocking timeout of the jms datasource and the time I can cut off the database connection without killing the server completely. I saw HAJMS failover messages from the container as well as from my own classes while the database was plug off. Please excuse my English Stefan View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3865666#3865666 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3865666 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
