Sorry I can't be more help - I'm still trying to figure this out myself. What happens if you use 'channelsendoptions=6' instead of '8'?
-- 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 6:39 PM To: users@tomcat.apache.org Subject: RE: Problem with DeltaManager & BackupManager Hi Robin, Yes, /var/tomcat$n/webapps/examples/WEB-INF/web.xml contains <distributable/> and /var/tomcat$n/conf/context.xml is like this: <!-- <Manager pathname="" /> --> I think the problem is somewhat deeper. Because I can see from the logs that sessions are replicated when I use BackupManager. I mean, I only change DeltaManager to BackupManager, open 4 terminal and do tail -f /var/tomcat$n/logs/localhost.2009-04-25.log for each instance and see the following message: (instance 2) Apr 25, 2009 2:29:00 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: sessionCreated('4A173B54F43792042A4FDB991D48C409.s2') Apr 25, 2009 2:29:00 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeAdded('4A173B54F43792042A4FDB991D48C409.s2', 'numguess', 'num.numberguessb...@4b2dd538') (intance 4 log message) INFO: SessionListener: attributeAdded('4A173B54F43792042A4FDB991D48C409.s2', 'numguess', 'num.numberguessb...@3c6833f2') Apr 25, 2009 2:29:00 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeReplaced('4A173B54F43792042A4FDB991D48C409.s2', 'numguess', 'num.numberguessb...@3c6833f2') Apr 25, 2009 2:29:00 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeReplaced('4A173B54F43792042A4FDB991D48C409.s2', 'numguess', 'num.numberguessb...@5d2a73d9') Apr 25, 2009 2:29:01 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeReplaced('4A173B54F43792042A4FDB991D48C409.s2', 'numguess', 'num.numberguessb...@e1bdb58') Apr 25, 2009 2:29:01 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeReplaced('4A173B54F43792042A4FDB991D48C409.s2', 'numguess', 'num.numberguessb...@46dd75a4') --- (no log in instance 1 and 3) First, BackupManager seems to select the backup node arbitrarly. In this example, I created the session on jvmRoute s2, it replicated in on s4 which seemed random to me. In order to eliminate this random behavior, I tried switching to DeltaManager with exactly same configuration, Here is the result: (all instance logs shows this) Apr 25, 2009 2:33:51 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: sessionCreated('3DA2A86518AC780A0832669D168B66FD.s2') Apr 25, 2009 2:33:51 AM org.apache.catalina.core.ApplicationContext log INFO: SessionListener: attributeAdded('3DA2A86518AC780A0832669D168B66FD.s2', 'numguess', 'num.numberguessb...@2fe6e305') -- When I refresh the "jsp", I'm changing the session attribute because I can see from the example: [Good guess, but nope. Try lower. You have made 18 guesses.] and balancer-manager shows Worker URL Route RouteRedir Factor Set Status Elected To From ajp://127.0.0.1:12001 s1 1 0 Ok 0 0 0 ajp://127.0.0.1:12002 s2 1 0 Ok 18 0 22K ajp://127.0.0.1:12003 s3 1 0 Ok 0 0 0 ajp://127.0.0.1:12004 s4 1 0 Ok 0 0 0 But there is nothing in the log as the one in BackupManager (attributeReplaced..) So, normally, when I disable "s2" route, session should continue, I must see the "counter" in the jsp increasing, but it starts over. Thank you. (sorry for typos) Robin Wilson-5 wrote: > > 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 > > > -- View this message in context: http://www.nabble.com/Problem-with-DeltaManager---BackupManager-tp23226268p23226529.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
