I'm trying to perform a simple cluster setup with Tomcat 5.5 and been running into some problems.
Here's the link to the tutorial that I'm trying to follow: http://tomcat.apache.org/tomcat-5.5-doc/cluster-howto.html. Below is an excerpt of the stack trace, I'm using the balancer application from tomcat. 2006-09-25 22:11:43,718 (WebPortalLogger.java:44) - 923014548 : 1 2006-09-25 22:11:43,718 (WebPortalLogger.java :44) - Requested server instance did not match.. 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - getServerInstance() : 1 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - getMaxServerInstances() : 3 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - 1876138717 : 2 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - Requested server instance did not match.. 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - getServerInstance() : 2 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - getMaxServerInstances() : 3 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - 747657098 : 3 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - Requested server instance did not match.. 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - getServerInstance() : 3 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - getMaxServerInstances() : 3 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - 388758323 : 3 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - Requested server instance match.. java.lang.IllegalArgumentException: Required property "mcastClusterDomain" is missing. at org.apache.catalina.cluster.mcast.McastService.hasProperty ( McastService.java:252) at org.apache.catalina.cluster.mcast.McastService.setProperties( McastService.java:140) at common.utilities.ServerUtil.isServerAlive(ServerUtil.java:36) at org.apache.webapp.balancer.rules.BaseLoadBalancingRule.isServerAlive ( BaseLoadBalancingRule.java:89) at org.apache.webapp.balancer.rules.RandomRedirectRule.matches( RandomRedirectRule.java:41) at org.apache.webapp.balancer.RuleChain.evaluate(RuleChain.java:100) at org.apache.webapp.balancer.BalancerFilter.doFilter( BalancerFilter.java:118) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter( ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter ( ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke( StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke( StandardContextValve.java :178) at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:126) at org.apache.catalina.cluster.session.JvmRouteBinderValve.invoke( JvmRouteBinderValve.java:208) at org.apache.catalina.cluster.tcp.ReplicationValve.invoke ( ReplicationValve.java:346) at org.apache.catalina.valves.ErrorReportValve.invoke( ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke( StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service( CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process( Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection( Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket( PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt( LeaderFollowerWorkerThread.java :80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run( ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595) 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - Time taken to check connection: 0 ms. ** THE SERVER IS NOT AVAILABLE ** 2006-09-25 22:11:43,734 (WebPortalLogger.java:44) - RandomRedirectRule -- isAlive : false Below is my server.xml configuration for Tomcat 5.5: (only the receiver.tcpListenPort was modified for the other instances.) <Server port="8011" shutdown="SHUTDOWN" > <GlobalNamingResources> <Resource name="UserDatabase" auth="Container" type="org.apache.catalina.UserDatabase" description="User database that can be updated and saved" factory=" org.apache.catalina.users.MemoryUserDatabaseFactory " pathname="conf/tomcat-users.xml" /> </GlobalNamingResources> <Service name="Catalina"> <Connector port="9012" protocol="AJP/1.3" <Connector port="9013" maxThreads="100" minSpareThreads="4" maxSpareThreads="4" /> <Engine name="Catalina" defaultHost="localhost" jvmRoute="node1"> <Realm className=" org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase" /> <Host name="localhost" appBase="webapps"> <Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"/> </Host> </Engine> </Service> </Server> I used a different tutorial ( http://www.onjava.com/pub/a/onjava/2004/04/14/clustering.html) for Tomcat 5.0 and didn't get any problems. Thank you in advance. Cheers, Paul -- Wheresoever you go, go with all your heart. --Confucius
