Hi,
I am using the jsp-examples - book demo that comes with tomcat. I seen
somewhere on the web that this can be used to test session replication. I
assume that all objects in this app are serializable. Do you think that this
is not a proper test?
Martin
nch-3 wrote:
>
>
> Make sure all objects you add to a session are serializable. If not,
> DeltaManager should be logging about it.
> Cheers.
>
>
>
> ----- Original Message ----
> From: martinjd <[EMAIL PROTECTED]>
> To: users@tomcat.apache.org
> Sent: Tuesday, July 8, 2008 11:35:11 AM
> Subject: Tomcat 5.5.26 Sessions getting replicated but not working via
> browser
>
>
> Hi,
> I have configured Tomcat 5.5.26 to be clustered across 2 machines with one
> instance on each. These two machines are behing a BIG-IP loadbalancer
> which
> is setup for sticky sessions.
>
> The catalina.out states that the member can see each other:
>
> Jul 3, 2008 6:33:50 PM org.apache.catalina.cluster.tcp.SimpleTcpCluster
> memberAdded INFO: Replication member
> added:org.apache.catalina.cluster.mcast.McastMember[tcp://10.17.21.125:9001,catalina,10.17.21.125,9001,
> alive=38753] Jul 3, 2008 6:33:51 PM
> org.apache.catalina.cluster.mcast.McastService registerMBean
>
> The localhost.2008-07-03.log states that the sessions are being replicated
> for the jsp-examples app - book example. I have an app of our own that
> does
> not even state that the session is replicated but I though I would start
> here with getting the example one working.
>
> Jul 3, 2008 6:34:31 PM org.apache.catalina.core.ApplicationContext log
> INFO:
> SessionListener:
> sessionDestroyed('E7E9E54600927A4826AFEDB59D7EF6E7.tomcatDargle')
>
> However, when I take down the instance which created the session and
> attempt
> to refresh the page or navigate to another page I get page cannot be
> displayed. This shows that the sessions are not completely replicated.
> What
> am I missing?
>
> I have added my server.xml file contents:
>
> <Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
> managerClassName="org.apache.catalina.cluster.session.DeltaManager"
> expireSessionsOnShutdown="false" useDirtyFlag="false"
> notifyListenersOnReplication="true">
>
> <Membership className="org.apache.catalina.cluster.mcast.McastService"
> mcastAddr="239.192.17.20" mcastPort="9002" mcastFrequency="500"
> mcastDropTime="3000"/>
>
> <Receiver className="org.apache.catalina.cluster.tcp.ReplicationListener"
> tcpListenAddress="auto" tcpListenPort="9001" tcpSelectorTimeout="100"
> tcpThreadCount="6"/>
>
> <Sender className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
> replicationMode="pooled" ackTimeout="15000" waitForAck="true"/>
>
> <ClusterListener
> className="org.apache.catalina.cluster.session.ClusterSessionListener" />
> <ClusterListener
> className="org.apache.catalina.cluster.session.JvmRouteSessionIDBinderListener"
> /> <Valve className="org.apache.catalina.cluster.tcp.ReplicationValve"
> filter=".*\.gif;.*\.js;.*\.css;.*\.png;.*\.jpeg;.*\.jpg;.*\.htm;.*\.html;.*\.txt;"
> primaryIndicator="true" /> <Valve
> className="org.apache.catalina.cluster.session.JvmRouteBinderValve"
> enabled="true" />
>
> </Cluster>
>
> The app I am using is the jsp-examples/book example.
>
> The load balancer is sending requests to both servers.
>
> When the dargle instance is sent a request I can see in the logs of both
> servers:
>
> INFO: SessionListener:
> sessionCreated('730F4AD5A21CA06639BF956B9F5418CB.tomcatDargle')
>
> When the tolka instance is sent a request I can see in the logs of both
> servers:
>
> INFO: SessionListener:
> sessionCreated('E7E9E54600927A4826AFEDB59D7EF6E7.tomcatTolka')
>
> When the server starts up the relevant info is in the logs:
>
> Jul 3, 2008 6:33:56 PM org.apache.catalina.cluster.session.DeltaManager
> start INFO: Starting clustering manager at /jsp-examples Jul 3, 2008
> 6:33:56
> PM org.apache.catalina.cluster.session.DeltaManager getAllClusterSessions
> WARNING: Manager [/jsp-examples], requesting session state from
> org.apache.catalina.cluster.mcast.McastMember[tcp://10.17.21.125:9001,catalina
> ,10.17.21.125,9001, alive=44363]. This operation will timeout if no
> session
> state has been received within 60 seconds. Jul 3, 2008 6:33:56 PM
> org.apache.catalina.cluster.session.DeltaManager waitForSendAllSessions
> INFO: Manager [/jsp-examples]; session state send at 7/3/08 6:33 PM
> received
> in 123 ms.
>
> The jsp-examples book example is supposed to have serilizable object and
> was
> recommended on some sites are the way to test out the replication. Is
> there
> any other way to test this?
>
> Also, the main purpose of the cluster is to replicate an application from
> an
> external vendor which they say is compatible with session replication.
> However, this app does not even output the sessionCreated message so I am
> unsure if it truly is compatible.
>
> If I could prove that the cluster is setup correctly then I would have
> more
> to go on when contacting the vendor. At the moment I am unsure if the
> cluster is setup correctly for session replication.
>
> Any help at all would be greatly appreciated.
>
> Martin
>
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>
>
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