Did you comment out the <Manager pathname="" /> line in 'context.xml'? If you leave that it, it doesn't use the manager you defined for the cluster.
Also, is your web app defined as '<distributable />' in the 'web.xml' file from the webapp dir? -- Robin D. Wilson Director of Web Development KingsIsle Entertainment, Inc. WORK: 512-623-5913 CELL: 512-426-3929 www.KingsIsle.com -----Original Message----- From: Kursat Tuncel [mailto:kursat.tun...@gmail.com] Sent: Friday, April 24, 2009 6:12 PM To: users@tomcat.apache.org Subject: Problem with DeltaManager & BackupManager Hi All, I'm trying to setup a Tomcat Cluster configuration by using the example provided in http://www.mbaworld.com/docs/cluster-howto.html My problem is actually a bit strange. I've been digging the problem for 2 days but no success. Here is my configuration: 4 Tomcat instances on the same machine, version 6.0.18 I'm using apache as the http connector, version Apache/2.2.11. Here is my httpd.conf: [...] <Proxy balancer://ajpCluster> BalancerMember ajp://127.0.0.1:12001 route=s1 BalancerMember ajp://127.0.0.1:12002 route=s2 BalancerMember ajp://127.0.0.1:12003 route=s3 BalancerMember ajp://127.0.0.1:12004 route=s4 </Proxy> <Location /examples> ProxyPass balancer://ajpCluster/examples stickysession=JSESSIONID </Location> [...] Here are the 4 tomcat instances seperate config file (each located in /var/tomcat[1-n] as CATALINA_BASE, properly configure startup/shutdown scripts, ports etc.) --- <Engine name="Catalina" defaultHost="localhost" jvmRoute="s1"> <!-- The request dumper valve dumps useful debugging information about the request and response data received and sent by Tomcat. Documentation at: /docs/config/valve.html --> <!-- <Valve className="org.apache.catalina.valves.RequestDumperValve"/> --> <!-- This Realm uses the UserDatabase configured in the global JNDI resources under the key "UserDatabase". Any edits that are performed against this UserDatabase are immediately available for use by the Realm. --> <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/> <!-- Define the default virtual host Note: XML Schema validation will not work with Xerces 2.2. --> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8"> <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="228.0.0.4" port="45564" frequency="500" dropTime="3000"/> <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver" address="auto" port="14001" autoBind="100" selectorTimeout="5000" 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"/> </Channel> <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/> <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/> <Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer" tempDir="/tmp/war-temp/" deployDir="/tmp/war-deploy/" watchDir="/tmp/war-listen/" watchEnabled="false"/> <ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/> <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/> </Cluster> </Host> </Engine> --- jvmRoute value and NioReceiver port value is 1-n for all 4 tomcat instances (i.e., s1, s2, s3, s4 and 14001, 14002, 14003, 14004 for the instances) Theoretically, this configuration should work. I deployed "examples" application provided in tomcat examples and made it "</distributable>" in web.xml of the application. I also used "Number guess" game provided in examples application. I had to modify NumGuessBean.java to implement java.io.Serializable. So my setup seems ok upto now. When I start tomcat instances, and run the example, I see from the localhost.xxx.log that session is created on all nodes. i.e. .. INFO: SessionListener: sessionCreated('78C5694D20B69F54D5CEBD26F10D788D.s1') Apr 25, 2009 1:34:51 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeAdded('78C5694D20B69F54D5CEBD26F10D788D.s1', 'numguess', 'num.numberguessb...@19de0b5e') .. Now my problem starts where. When I start changing the value of session attribute by hitting "Refresh" button, I don't see any replication happenning. Normally, I should see "attributeReplaced" messages in the log. How to I know this, because exactly same configuration but using "BackupManager" instead of "DeltaManager" it happens exactly like this. But BackupManager only "backups" to one node to another, i.e., it replicates deltas between two instances only, and the choice of selecting this backupnode seems to be completely arbitrary. These is nothing in the documentation how backup node is selected. Also using balancer-manager handler in Apache, I disable the jvm instance that my session was created and redirect it to another JVM. With deltaManager, session start from beginning. With backup manager, session continues only if I can select the right jvm, that is the backup of the instance. So it seems that I'm stuck with setting up a cluster configuration. Has anyone tried Tomcat 6.0.18 with Apache 2.2.11, sticky session mode with mod_proxy_ajp? I'm stucked with this configuration. -- View this message in context: http://www.nabble.com/Problem-with-DeltaManager---BackupManager-tp23226268p23226268.html Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
