we have a situation at office. JBoss automatically unloads all deployed EJB's without us knowing why.
here's the log we got :
2009-11-09 15:59:51,375 INFO [org.jboss.system.server.Server] JBoss (MX MicroKernel) [4.2.1.GA (build: SVNTag=JBoss_4_2_1_GA date=200707131605)] Started in 14s:704ms 2009-11-09 15:59:51,390 DEBUG [com.arjuna.ats.arjuna.logging.arjLogger] Periodic recovery - first pass 2009-11-09 15:59:51,406 DEBUG [com.arjuna.ats.arjuna.logging.arjLogger] StatusModule: first pass 2009-11-09 15:59:51,406 DEBUG [com.arjuna.ats.txoj.logging.txojLoggerI18N] [com.arjuna.ats.internal.txoj.recovery.TORecoveryModule_3] - TORecoveryModule - first pass 2009-11-09 15:59:51,406 DEBUG [com.arjuna.ats.jta.logging.loggerI18N] [com.arjuna.ats.internal.jta.recovery.info.firstpass] Local XARecoveryModule - first pass 2009-11-09 16:00:01,406 DEBUG [com.arjuna.ats.arjuna.logging.arjLogger] Periodic recovery - second pass 2009-11-09 16:00:01,406 DEBUG [com.arjuna.ats.arjuna.logging.arjLogger] AtomicActionRecoveryModule: Second pass 2009-11-09 16:00:01,406 DEBUG [com.arjuna.ats.txoj.logging.txojLoggerI18N] [com.arjuna.ats.internal.txoj.recovery.TORecoveryModule_6] - TORecoveryModule - second pass 2009-11-09 16:00:01,406 DEBUG [com.arjuna.ats.jta.logging.loggerI18N] [com.arjuna.ats.internal.jta.recovery.info.secondpass] Local XARecoveryModule - second pass 2009-11-09 16:00:42,796 DEBUG [org.jboss.system.ServiceController] destroying service: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,796 DEBUG [org.jboss.system.ServiceController] Destroy requested before stop, calling stop now for service: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,796 DEBUG [org.jboss.system.ServiceController] stopping service: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,796 DEBUG [org.jboss.system.ServiceController] stopping dependent services for: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh dependent services are: [ObjectName: jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestEvaluation,service=EJB3 State: RUNNING I Depend On: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh , ObjectName: jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestionUtilisateur,service=E JB3 State: RUNNING I Depend On: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh ] 2009-11-09 16:00:42,796 DEBUG [org.jboss.system.ServiceController] stopping service: jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestEvaluation,service=EJB3 2009-11-09 16:00:42,796 DEBUG [org.jboss.system.ServiceController] stopping dependent services for: jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestEvaluation,service=EJB3 dependent services are: [] 2009-11-09 16:00:42,796 DEBUG [org.jboss.ejb3.stateless.StatelessDelegateWrapper] Stopping jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestEvaluation,service=EJB3 2009-11-09 16:00:42,796 DEBUG [org.jboss.ejb.txtimer.EJBTimerServiceImpl] removeTimerService: org.jboss.ejb.txtimer.TimerServiceImpl@134329b 2009-11-09 16:00:42,812 INFO [org.jboss.ejb3.EJBContainer] STOPPED EJB: com.afrikbrain.grh.ejb.session.GestEvaluation ejbName: GestEvaluation 2009-11-09 16:00:42,812 DEBUG [org.jboss.ejb3.stateless.StatelessDelegateWrapper] Stopped jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestEvaluation,service=EJB3 2009-11-09 16:00:42,812 DEBUG [org.jboss.system.ServiceController] stopping service: jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestionUtilisateur,service=E JB3 2009-11-09 16:00:42,812 DEBUG [org.jboss.system.ServiceController] stopping dependent services for: jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestionUtilisateur,service=E JB3 dependent services are: [] 2009-11-09 16:00:42,812 DEBUG [org.jboss.ejb3.stateless.StatelessDelegateWrapper] Stopping jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestionUtilisateur,service=E JB3 2009-11-09 16:00:42,812 DEBUG [org.jboss.ejb.txtimer.EJBTimerServiceImpl] removeTimerService: org.jboss.ejb.txtimer.TimerServiceImpl@1da817b 2009-11-09 16:00:42,812 INFO [org.jboss.ejb3.EJBContainer] STOPPED EJB: com.afrikbrain.grh.ejb.session.GestionUtilisateur ejbName: GestionUtilisateur 2009-11-09 16:00:42,812 DEBUG [org.jboss.ejb3.stateless.StatelessDelegateWrapper] Stopped jboss.j2ee:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,name=GestionUtilisateur,service=E JB3 2009-11-09 16:00:42,812 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper] Stopping persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,812 INFO [org.jboss.ejb3.entity.PersistenceUnitDeployment] Stopping persistence unit persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,812 INFO [org.hibernate.impl.SessionFactoryImpl] closing 2009-11-09 16:00:42,812 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Unbinding factory from JNDI name: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,812 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext properties: {java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces} 2009-11-09 16:00:42,812 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Unbound factory from JNDI name: persistence.units:ear=prjGRHProcess.ear,jar=prjGRHProcessEJB.jar,unitName=grh 2009-11-09 16:00:42,812 INFO [org.hibernate.tool.hbm2ddl.SchemaExport] Running hbm2ddl schema export 2009-11-09 16:00:42,812 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] import file not found: /import.sql 2009-11-09 16:00:42,812 INFO [org.hibernate.tool.hbm2ddl.SchemaExport] exporting generated schema to database 2009-11-09 16:00:42,812 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TBA_ACT_TRANSMISSION cascade constraints 2009-11-09 16:00:42,828 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TBA_DEST_TRANSMISSION cascade constraints 2009-11-09 16:00:42,843 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TBA_DOMAINE_PROFIL cascade constraints 2009-11-09 16:00:42,859 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TBA_EMPLOYE_UM cascade constraints 2009-11-09 16:00:42,875 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TBA_MANAGERS_UM cascade constraints 2009-11-09 16:00:42,890 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TB_ACTION cascade constraints 2009-11-09 16:00:42,906 DEBUG [org.hibernate.tool.hbm2ddl.SchemaExport] drop table TB_DMDDEROGATION cascade constraints