Schedule EJB in JBoss Cluster, run in one node

[jorsol]

I have an stateless EJB with a Schedule annotation, the problem is that my application is in a JBoss Cluster in domain mode and the Schedule is run in every node the app is deployed, I just need that run in just one node.

How I can achieve that?

[wdfink]

You might have a look to the quickstarts [1] or the github repo [2] which might be newer.

The cluster-ha-example show how to achieve such behaviour with timers.

[1] cluster-ha-singleton: A SingletonService deployed in a JAR

[2] jboss-eap-quickstarts/cluster-ha-singleton

[rhusar]

The quickstart is using a SingletonServiceBuilder to create a service that is going to be running only on one node in the cluster. That service takes care of creating the timers only on one node.

For more thorough approach for WildFly 9 (or so) you might want to watch:

[WFLY-283] EJB timers in cluster and failover support - JBoss Issue Tracker