[jboss-user] [EJB 3.0] - JBoss cache tuning with RC9 patch 1, cluster and Optimistic

[J.Hedin]

Hi

We use JBoss 4.0.5.GA + EJB3 RC9 patch 1 + JBoss Cache 1.4.1.GA in a cluster with two nodes. All our entity EJBs are Optimistic locked via @Version. However, the cache looks like it uses pessimistic locks during the whole transaction. Is the JBoss Cache in conflict with the @Version annotation? How should I tune the JBoss cache? I would like to set

locking: OPTIMISTIC
replication: INVALID_SYNC

is that safe with EJB3 entities?

My persistence.xml


  | <?xml version="1.0" encoding="UTF-8"?>
  | <!-- $Id: persistence.xml,v 1.3 2006/06/27 15:07:45 johan Exp $ -->
  | <persistence>
  |     <persistence-unit name="IBCS">
  |         <jta-data-source>java:/IBDS</jta-data-source>
  |         <properties>
  |             <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLInnoDBDialect"/>
  |             <property name="hibernate.hbm2ddl.auto" value="none"/>
  |             <property name="hibernate.cache.provider_class" value="org.jboss.ejb3.entity.TreeCacheProviderHook"/>
  |             <property name="hibernate.treecache.mbean.object_name" value="jboss.cache:service=EJB3EntityTreeCache"/>
  |         </properties>
  |     </persistence-unit>
  | </persistence>
  | 

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