thanks for the very diligent email, open a bug, and I will address this issue shortly.
thank you for helping us make better software Filip -----Original Message----- From: Aadi Deshpande [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 25, 2004 10:36 PM To: Tomcat Users List Subject: Re: Cluster error when starting up web application Upon further research, it seems that DeltaSession.setId() fires the sessionCreated events to registered listeners, but this happens before a session is declared valid ( i.e. setValid(true) has not been called ). so when a registered listener tries to utilize ( what it seems to believe is ) a newly created session, the setAttribute method throws the IllegalStateException.. Now I don't know too much about how the actual workings of the HttpSession should go, but in my opinion, the sessionCreated events should not be fired unless a valid session has been created. which seems to imply that maybe setValid() should doing the firing... However, that doesn't sit well with me since it doesn't make sense for a session to be truly valid unless it has a sessionId, which either forces there to be an implict order between setId() and setValid() which is no good, requiring that either/or check to see if the other has been truly satisfied, and setting up some sort of implicit sequence coupling. the alternative, as I see it, is move the tellNew() invocation to the DeltaManager ( it's declared public, so it's already exposed ). I tried that, by patching up the TC5 sources and it seemed to resolve the issue. Again, as I know little to nothing of how sessions should work and what other implications this refactoring may have, what should be my next course of action? Should I contact the webwork people? Is this not correct use of sessions and session listeners? Should I open up a bug and/or propose my patch? Thanks in advance for reading and/or responding, -a Aadi Deshpande wrote: > Hi, > > I just got Tomcat 5.0.19 and after setting up the new delta based > cluster manager, i get this during the startup my application : > > SEVERE: Session event listener threw exception > java.lang.IllegalStateException: setAttribute: Session already > invalidated > at > org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.j ava:1306) > > at > org.apache.catalina.cluster.session.DeltaSession.setAttribute(DeltaSession.j ava:1283) > > at > org.apache.catalina.cluster.session.DeltaSessionFacade.setAttribute(DeltaSes sionFacade.java:17 > > 7) > at > com.opensymphony.webwork.lifecycle.SessionLifecycleListener.sessionCreated(S essionLifecycleLis > > tener.java:50) > at > org.apache.catalina.cluster.session.DeltaSession.tellNew(DeltaSession.java:4 59) > > at > org.apache.catalina.cluster.session.DeltaSession.setId(DeltaSession.java:431 ) > > at > org.apache.catalina.cluster.session.DeltaManager.createSession(DeltaManager. java:377) > > at > org.apache.catalina.cluster.session.DeltaManager.messageReceived(DeltaManage r.java:895) > > at > org.apache.catalina.cluster.session.DeltaManager.messageDataReceived(DeltaMa nager.java:794) > > at > org.apache.catalina.cluster.tcp.SimpleTcpCluster.messageDataReceived(SimpleT cpCluster.java:561 > > ) > at > org.apache.catalina.cluster.io.ObjectReader.execute(ObjectReader.java:117) > > at > org.apache.catalina.cluster.tcp.TcpReplicationThread.drainChannel(TcpReplica tionThread.java:17 > > 6) > at > org.apache.catalina.cluster.tcp.TcpReplicationThread.run(TcpReplicationThrea d.java:114) > > > > > As far as I can tell, it's happening when I request a page that has > the webwork2 RequestLifecycleFilter set for that url pattern. The > doFilter function creates a HttpSession if none exists, which I assume > calls the SessionLifecycleListener.sessionCreated(), but for some > reason, it seems like the session is being invalidated prematurely.. > > > Here's the relevant piece from my web.xml : > <filter> > <filter-name>container</filter-name> > <filter-class> > > com.opensymphony.webwork.lifecycle.RequestLifecycleFilter</filter-class> > </filter> > <filter-mapping> > <filter-name>container</filter-name> > <url-pattern>/*</url-pattern> > <!-- modify appropriately --> > </filter-mapping> > <listener> > <listener-class> > > com.opensymphony.webwork.lifecycle.SessionLifecycleListener</listener-class> > > </listener> > <listener> > <listener-class> > > com.opensymphony.webwork.lifecycle.ApplicationLifecycleListener</listener-cl ass> > > </listener> > > and from my server.xml file, taken pretty much verbatim from the > default server.xml: > > <Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster" > > managerClassName="org.apache.catalina.cluster.session.DeltaManager" > expireSessionsOnShutdown="false" > useDirtyFlag="true"> > > <Membership > className="org.apache.catalina.cluster.mcast.McastService" > mcastAddr="224.64.64.128" > mcastPort="45600" > mcastFrequency="500" > mcastDropTime="3000"/> > > <Receiver > > className="org.apache.catalina.cluster.tcp.ReplicationListener" > tcpListenAddress="auto" > tcpListenPort="4060" > tcpSelectorTimeout="100" > tcpThreadCount="3"/> > > <Sender > > className="org.apache.catalina.cluster.tcp.ReplicationTransmitter" > replicationMode="pooled"/> > > > <Valve > className="org.apache.catalina.cluster.tcp.ReplicationValve" > filter=".*\.gif;.*\.js;.*\.jpg;.*\.htm;.*\.html;.*\.txt;"/> > > </Cluster> > > Anyone know what's going on? Or can provide some insight into what I > may be missing? > > Thanks for any info. > > -a > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.594 / Virus Database: 377 - Release Date: 2/24/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.594 / Virus Database: 377 - Release Date: 2/24/2004 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
