java.lang.UnsupportedOperationException: TreeCache is a full

[calv1002]

Trying to set up TreeCache for performance testing, and encountered the following error.

Changed Hibernate to the latest release 3.2.4 sp1 and swapped in its associated treecache. Same error occurred under both JBOSS 4.0.5 and the latest 4.2.0.

Changed Treecache to 1.4.1 sp3. The error persists. What could be the problem.

Ehcache worked fine in all scenarios.

java.lang.UnsupportedOperationException: TreeCache is a fully transactional cache: hibernate.test.com.kin.site.domain.Person
at org.hibernate.cache.TreeCache.unlock(TreeCache.java:147)
at org.hibernate.cache.ReadWriteCache.put(ReadWriteCache.java:176)
at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:156)
at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)
at org.hibernate.loader.Loader.doQuery(Loader.java:717)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
at org.hibernate.loader.Loader.loadEntity(Loader.java:1784)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48)
at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)
at org.hibernate.loader.entity.BatchingEntityLoader.load(BatchingEntityLoader.java:82)
at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2977)
at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:393)
at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:374)
at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:137)
at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:193)
at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:101)
at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815)
at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
at org.h2uow.persistence.hibernate.SessionDecorator.get(SessionDecorator.java:241)

[genman]

Probably something wrong with your Hibernate cache configuration. I don't see TreeCache in that stack trace, so I assume you set up some sort of contradicting properties in there.

[manik]

You need to set your cache strategy to transactional to use JBoss Cache

http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#performance-cache-transactional

[calv1002]

Thank you guys for your replies. I had to turn all things transactional off in order to make this work. Changed cache usage to 'read-only'. Locking mode is 'pessimistic', and the isolation level is 'none'.