[jboss-user] [Clustering/JBoss] - Re: Singleton Failover

chanyungwan do-not-reply at jboss.com
Wed Jul 19 22:09:28 EDT 2006

There are totally 3 singletons.  Make it simple, may be we use 1 singleton to illustrate the scenario.  What I mean the "long" time for launching it in 2nd case is that the singleton almost needs 2 - 3 minutes for being completion of running its constructor and "startSingleton" method defined in jboss-service.xml, then finally the new cluster view is built.  You can see the following log in 2nd node once I quit the master node using "Ctrl-C":

10:02:17,628 INFO  [Http11Protocol] Starting Coyote HTTP/1.1 on http-
10:02:18,030 INFO  [ChannelSocket] JK2: ajp13 listening on /
10:02:18,143 INFO  [JkMain] Jk running ID=0 time=0/249  config=null
10:03:20,704 INFO  [STDOUT] calling singleton constructor
10:05:21,489 INFO  [STDOUT] starting singleton...
10:07:21,572 INFO  [ServiceModule] Registration is not done -> stop
10:07:21,641 INFO  [EmmgClusterPartition] New cluster view (id: 2, delta: -1) : []
10:07:21,642 INFO  [EmmgClusterPartition:ReplicantManager] Dead members: 1

Since there are 3 singletons in my case, so the total time for "completing" their activation is about 10 minutes.  It's really a big problem for us!!

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