I recently had a problem with no node wanting to become the master. As I investigated the
issue I found that there was a back port from 5.0 of a mechanism to control the election
policy, but I have found no information about how to use this feature. Below is a snipit
from an earlier post on this topic that got burried in the other issue, and desrves an
independent post.
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I thought that the problem could be related to the
org.jboss.ha.singleton.HASingletonElectionPolicy feature which was back ported from 5.0,
see:
http://jira.jboss.com/jira/browse/JBAS-3636
This attribute shows up under the MBean attributes of
org.jboss.ha.singleton.HASingletonController from the JMX console, but despite showing the
attribute as read / write, you can not change the value. Attempts to set the the value in
the deploy/deploy-hasingleton-service.xml file result in a property editor exception.
There is some method that I am not aware of that they have used to test this functionality
out in JBoss' test suit, (for example
http://www.ohloh.net/projects/480/contributors/26897/commits/6569686 )
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