[jboss-user] [JBoss Cache Users] - upgradeLock(): failed

[jelevy01]

We are attempting to get the second level cache going within JBoss 4.2.2 under anything more then a little load we start getting many upgradeLock exceptions.  I haven't been able to find any information on the exception or how to troubleshoot it.  

6:41:00,973 ERROR Line: 124 [org.jboss.cache.lock.ReadWriteLockWithUpgrade] upgradeLock(): failed
  | 16:41:00,979 ERROR Line: 301 [org.hibernate.event.def.AbstractFlushingEventListener] Could not synchronize database state with session
  | org.hibernate.cache.CacheException: org.jboss.cache.lock.UpgradeException failure upgrading lock: fqn=/MeetMoi_ear,mDate-ejb_jar,matching-ejbPU/com/mdate/ejb/matching/UserCacheEntity/com.mdate.ejb.matching.UserCacheEntity#8889CAE0CFD2F407013079880AD89C6D, caller=GlobalTransaction:<192.168.1.186:40795>:40, lock=read owners=[GlobalTransaction:<192.168.1.186:40795>:38] (activeReaders=1, activeWriter=null, waitingReaders=1, waitingWriters=0, waitingUpgrader=0)
  | 

Thanks

J

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