Caching of collections isn't working how I would expect. I had a TaskTypeEntity which has an AttrTypeEntity which in turn has AttrDef. I placed cache markers on all entities and on the collections of AttrTypeEntity. When I changed an AttrDef, the cached copy in the AttrTypeEntity collection wasn't updated.

Need to find out how the cache works exactly.

SNP Load Testing Adventures

Ran 20 threads all at the same time with default cache settings - takes 65 secs.

When I changed entity cache to use OPTIMISTIC locking (it uses pessimistic by default) it seemed to make a difference when I hot-changed the cache file, but not from after a restart. After a restart there were lots of exceptions like

2009-03-12 18:43:10,875 WARN  [org.jboss.cache.interceptors.TxInterceptor] Rolling back, exception encountered


Caused by: org.jboss.cache.optimistic.DataVersioningException: Tx attempted to create /sa_XmTaskMgrInternal-ejb_jar,Xmotion/au/com/xmotion/xmattribute/ejb/orm/AttrValue/au.com.xmotion.xmattribute.ejb.orm.AttrValue#87616 anew.  It has already been created since this tx started by another (possibly remote) tx.

After restart optimistic cache - 20 simultaneous requests - 60sec
After restart optimistic cache - 20 simultaneous requests with 20sec rampup period - 16sec

After restart pessimistic cache - 20 simultaneous requests - 45sec
After restart pessimistic cache - 20 simultaneous requests with 20sec rampup period - 16sec