Hi I have one production issue related to database connection.

Earlier it was a single threaded now other team migrated to Multithreaded application. After migration we have some production related to database connectivity when we perform more operations.

Please find the below logs and hibernate config xml file.

Could some one help me to fix this issue.

Error logs :----
2013-03-01 10:23:53,803 (pool-2-thread-5) [DEBUG] CacheTranscodeManagerImpl - files copied from /opt/transcode/transcode/cache/SN-API-COMCAST_NATIONAL-HD-NC/3DBE3E900937F028BE397C9158CF8510 to /opt/transcode/transcode/output/559311
2013-03-01 10:23:54,449 (pool-2-thread-5) [WARN ] JDBCExceptionReporter - SQL Error: 0, SQLState: null
2013-03-01 10:23:54,449 (pool-2-thread-5) [ERROR] JDBCExceptionReporter - Connection is closed.
2013-03-01 10:23:54,449 (pool-2-thread-5) [ERROR] AbstractFlushingEventListener - Could not synchronize database state with session
org.hibernate.exception.GenericJDBCException: could not update: [com.scrippsnetworks.transcode.model.TranscodeCache#248019]
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2425)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2307)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2607)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.springframework.orm.hibernate3.HibernateTemplate$27.doInHibernate(HibernateTemplate.java:801)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:362)