seam server failover fails with StaleState???
deanhiller2000 Oct 22, 2009 5:03 PMThis is very odd, I would think only Hibernate should be throwing staleStateExceptions when saving to the database. Why is seam throwing one????
Context:
1. run web app against load balancer 2. kill the server I am on 3. click next in the wizard I am on 4. session transfers to new server and result is StaleStateException(very odd considering I am the only one on the server AND considering I was not saving to the database either)
Here is the stack trace(notice this is purely in seam only not hibernate)....
2009-10-22 08:26:50,192 WARN [org.jboss.seam.jsf.SeamPhaseListener] (http-0.0.0.0-8080-3) uncaught exception, passing to exception hand org.hibernate.StaleStateException: current database version number does not match passivated version number at org.jboss.seam.persistence.HibernatePersistenceProvider.checkVersion(HibernatePersistenceProvider.java:322) at org.jboss.seam.persistence.HibernatePersistenceProvider.checkVersion(HibernatePersistenceProvider.java:226) at org.jboss.seam.contexts.PassivatedEntity.checkVersion(PassivatedEntity.java:133) at org.jboss.seam.contexts.PassivatedEntity.getEntityFromEntityManager(PassivatedEntity.java:118) at org.jboss.seam.contexts.PassivatedEntity.toEntityReference(PassivatedEntity.java:73) at org.jboss.seam.contexts.EntityBean.activate(EntityBean.java:67) at org.jboss.seam.contexts.ServerConversationContext.unflush(ServerConversationContext.java:259) at org.jboss.seam.contexts.FacesLifecycle.resumeConversation(FacesLifecycle.java:175) at org.jboss.seam.jsf.SeamPhaseListener.afterRestoreView(SeamPhaseListener.java:393) at org.jboss.seam.jsf.SeamPhaseListener.afterServletPhase(SeamPhaseListener.java:230) at org.jboss.seam.jsf.SeamPhaseListener.afterPhase(SeamPhaseListener.java:196) at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:175) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:114) at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:103) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.RewriteFilter.doFilter(RewriteFilter.java:63) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.jboss.web.tomcat.service.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:135) at org.jboss.web.tomcat.service.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:94) at org.jboss.web.tomcat.service.session.LockingValve.invoke(LockingValve.java:62) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.jboss.web.tomcat.service.sso.ClusteredSingleSignOn.invoke(ClusteredSingleSignOn.java:672) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619)
Lastly, I was lookint at the Seam code in PassivatedEntity.java....
Object result = em.getReference( getEntityClass(), getId() ); if (result!=null && checkVersion) { checkVersion(em, result); }
why are we checking version when we are not even saving the entity????