Yes. We have SEQUENCER (which is preconfigured in seq.xml), which I wrote recently. And we have TOTAL_TOKEN which is token-based and which Vladimir wrote some time ago (coincidentally he joined JBoss 2 weeks ago...).
If you are looking to use seq.xml, I'll schedule it for some serious performance and regression testing. Let me know so I can plan ahead (JIRA-wise)
I need to read up some more on the pros & cons, differences between all these.
How does TOTAL_TOKEN relate (if at all) to http://jira.jboss.com/jira/browse/JGRP-6? Is this a different total token protocol?
JGRP-6 is a re-implementation of TOTAL_ORDER. Let's have a call on FRI if you're available (I'm onsite right now)
K. Let's do that