On 19 Sep 2012, at 16:59, "Carrillo, Dan" <dcarri...@idanalytics.com> wrote:
> Hi folks, > My sessions are replicating across the cluster as indicated by my session > listener debug output. E.g I can see the session created/destroyed messages > in each respective log. > I have a Service object that is serializable, which contains a String member > variable (x) which is not initialized; null. As my load balancer > round-robins the requests to each of these servers, each successfully > retrieves the service instance from the session. Now, when service.x is set > at some point in the workflow, I expect the other members to receive this > updated object since it resides in the session. However, I'm finding that it > is not, it remains null in all other containers. > > The tomcat config > (http://tomcat.apache.org/tomcat-6.0-doc/cluster-howto.html) says that "..For > each request the entire session is replicated, this allows code that modifies > attributes in the session without calling setAttribute or removeAttribute to > be replicated." > > Can someone clarify whether I do in fact need to reset the service object on > the session in order for it to replicate? If by this, you are asking whether you can retrieve an object from the session, update it and without adding it back to the session expect these changes to be propagated, then no, you can't. p > > Thanks! > > <Engine name="Catalina" defaultHost="localhost" jvmRoute="id2"> > <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" > channelSendOptions="6"> > > <Manager className="org.apache.catalina.ha.session.DeltaManager" > expireSessionsOnShutdown="false" > notifyListenersOnReplication="true"/> > > <Channel className="org.apache.catalina.tribes.group.GroupChannel"> > <Membership > className="org.apache.catalina.tribes.membership.McastService" > address="231.10.12.6" > port="35006" > frequency="500" > dropTime="3000"/> > <Receiver > className="org.apache.catalina.tribes.transport.nio.NioReceiver" > address="auto" > port="8117" > selectorTimeout="100" > maxThreads="6"/> > > <Sender > className="org.apache.catalina.tribes.transport.ReplicationTransmitter"> > <Transport > className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/> > </Sender> > <Interceptor > className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/> > <Interceptor > className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/> > <Interceptor > className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/> > </Channel> > > <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" > > filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;"/> > <ClusterListener > className="org.apache.catalina.ha.session.ClusterSessionListener"/> > </Cluster> --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
