[jboss-user] [jBPM] - Re: jBPM5 - Using as a state machine in clustered spring application with a dashboard

Arkady Perepelyuk [http://community.jboss.org/people/arkper] created the discussion "Re: jBPM5 - Using as a state machine in clustered spring application with a dashboard" To view the discussion, visit: http://community.jboss.org/message/625405#625405 -------------------------------------------------------------- I think there might be a problem with trying to share the same Knowledge Session across the cluster. I tried doing so and observed the following issue. A node tries to commit a transaction and finds out that entity SessionInfo has been updated by another transaction. The exception looks as follows: Hibernate: update SessionInfo set lastModificationDate=?, rulesByteArray=?, startDate=?, OPTLOCK=? where id=? and OPTLOCK=? Sep 7, 2011 10:39:34 PM org.drools.persistence.jta.JtaTransactionManager commit WARNING: Unable to commit transaction javax.persistence.OptimisticLockException : org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.drools.persistence.info.SessionInfo#1]  It should be noted that it's just a warning, but I'm not sure if the necessary updates are re-attempted in order to persist the state accuratly. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/625405#625405] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]