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http://issues.apache.org/bugzilla/show_bug.cgi?id=41166 Summary: Unable to start ReplicatedContext Product: Tomcat 6 Version: 6.0.0 Platform: PC OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Catalina AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] I try to test the Cluster function. I got a problem: something like following apears in the $CATALINA_HOME/logs/catalina.out SEVERE: Unable to start ReplicatedContext java.lang.ClassCastException: org.apache.naming.resources.ProxyDirContext cannot be cast to java.io.Serializable at org.apache.catalina.tribes.tipis.AbstractReplicatedMap$MapEntry.setValue (AbstractReplicatedMap.java:1060) I didn't change any file in $CATALINA_HOME except server.xml, the any thing I changed in server.xml is uncomment the line: <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>. and I add a context configuration file test.xml to $CATALINA_HOME/conf/Catalina/localhost with the flolling content [EMAIL PROTECTED] conf]$ cat Catalina/localhost/test.xml <Context className="org.apache.catalina.ha.context.ReplicatedContext" path="/test" docBase="/var/www/ClusterTest" debug="0" privileged="true" reloadable="true" > the web.xml file in /var/www/ClusterTest has no <distributable/> element I am worrying about I can't explain the problem clearly with my poor English. So I paste the stepes I do as following: [EMAIL PROTECTED] apache-tomcat-6.0.2]$ which java /usr/java/jdk1.6.0/bin/java [EMAIL PROTECTED] apache-tomcat-6.0.2]$ java -version java version "1.6.0-rc" Java(TM) SE Runtime Environment (build 1.6.0-rc-b104) Java HotSpot(TM) Client VM (build 1.6.0-rc-b104, mixed mode, sharing) [EMAIL PROTECTED] apache-tomcat-6.0.2]$ echo $JAVA_HOME /usr/java/jdk1.6.0 [EMAIL PROTECTED] apache-tomcat-6.0.2]$ echo $CLASSPATH [EMAIL PROTECTED] apache-tomcat-6.0.2]$ uname -a Linux BONC-01 2.6.9-34.EL #1 Wed Mar 8 00:07:35 CST 2006 i686 i686 i386 GNU/Linux [EMAIL PROTECTED] local]# cat /etc/redhat-release CentOS release 4.3 (Final) [EMAIL PROTECTED] apache-tomcat-6.0.2]$ cd conf [EMAIL PROTECTED] conf]$ cat server.xml <!-- Note: A "Server" is not itself a "Container", so you may not define subcomponents such as "Valves" at this level. Documentation at /docs/config/server.html --> <Server port="8005" shutdown="SHUTDOWN"> <!--APR library loader. Documentation at /docs/apr.html --> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html --> <Listener className="org.apache.catalina.core.JasperListener" /> <!-- JMX Support for the Tomcat server. Documentation at /docs/non- existent.html --> <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <!-- Global JNDI resources Documentation at /docs/jndi-resources-howto.html --> <GlobalNamingResources> <!-- Editable user database that can also be used by UserDatabaseRealm to authenticate users --> <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> <!-- A "Service" is a collection of one or more "Connectors" that share a single "Container" Note: A "Service" is not itself a "Container", so you may not define subcomponents such as "Valves" at this level. Documentation at /docs/config/service.html --> <Service name="Catalina"> <!-- A "Connector" represents an endpoint by which requests are received and responses are returned. Documentation at : Java HTTP Connector: /docs/config/http.html (blocking & non-blocking) Java AJP Connector: /docs/config/ajp.html APR (HTTP/AJP) Connector: /docs/apr.html Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="8080" protocol="HTTP/1.1" maxThreads="150" connectionTimeout="20000" redirectPort="8443" /> <!-- Define a SSL HTTP/1.1 Connector on port 8443 This connector uses the JSSE configuration, when using APR, the connector should be using the OpenSSL style configuration described in the APR documentation --> <!-- <Connector port="8443" protocol="HTTP/1.1" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" /> --> <!-- Define an AJP 1.3 Connector on port 8009 --> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> <!-- An Engine represents the entry point (within Catalina) that processes every request. The Engine implementation for Tomcat stand alone analyzes the HTTP headers included with the request, and passes them on to the appropriate Host (virtual host). Documentation at /docs/config/engine.html --> <!-- You should set jvmRoute to support load-balancing via AJP ie : <Engine name="Standalone" defaultHost="localhost" jvmRoute="jvm1"> --> <Engine name="Catalina" defaultHost="localhost"> <!--For clustering, please take a look at documentation at: /docs/cluster-howto.html (simple how to) /docs/config/cluster.html (reference documentation) --> <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> <!-- 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"> <!-- SingleSignOn valve, share authentication between web applications Documentation at: /docs/config/valve.html --> <!-- <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> --> <!-- Access log processes all example. Documentation at: /docs/config/valve.html --> <!-- <Valve className="org.apache.catalina.valves.FastCommonAccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/> --> </Host> </Engine> </Service> </Server> [EMAIL PROTECTED] conf]$ mkdir Catalina [EMAIL PROTECTED] conf]$ ln -s /usr/local/tomcatConf/localhost/ Catalina/localhost [EMAIL PROTECTED] conf]$ cat Catalina/localhost/test.xml <Context className="org.apache.catalina.ha.context.ReplicatedContext" path="/test" docBase="/var/www/ClusterTest" debug="0" privileged="true" reloadable="true" > </Context> [EMAIL PROTECTED] conf]$ cd .. [EMAIL PROTECTED] apache-tomcat-6.0.2]$ ls bin conf lib LICENSE logs NOTICE RELEASE-NOTES RUNNING.txt temp webapps work [EMAIL PROTECTED] apache-tomcat-6.0.2]$ rm logs/* [EMAIL PROTECTED] apache-tomcat-6.0.2]$ bin/catalina.sh version Using CATALINA_BASE: /home/Aray/download/apache-tomcat-6.0.2 Using CATALINA_HOME: /home/Aray/download/apache-tomcat-6.0.2 Using CATALINA_TMPDIR: /home/Aray/download/apache-tomcat-6.0.2/temp Using JRE_HOME: /usr/java/jdk1.6.0 Server version: Apache Tomcat/6.0.2 Server built: Nov 16 2006 12:31:06 Server number: 6.0.2.0 OS Name: Linux OS Version: 2.6.9-34.EL Architecture: i386 JVM Version: 1.6.0-rc-b104 JVM Vendor: Sun Microsystems Inc. [EMAIL PROTECTED] apache-tomcat-6.0.2]$ bin/startup.sh Using CATALINA_BASE: /home/Aray/download/apache-tomcat-6.0.2 Using CATALINA_HOME: /home/Aray/download/apache-tomcat-6.0.2 Using CATALINA_TMPDIR: /home/Aray/download/apache-tomcat-6.0.2/temp Using JRE_HOME: /usr/java/jdk1.6.0 [EMAIL PROTECTED] apache-tomcat-6.0.2]$ cat logs/catalina.out INFO: Initializing Coyote HTTP/1.1 on http-8080 Dec 13, 2006 4:07:39 PM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 2532 ms Dec 13, 2006 4:07:40 PM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Dec 13, 2006 4:07:40 PM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.2 Dec 13, 2006 4:07:40 PM org.apache.catalina.ha.tcp.SimpleTcpCluster start INFO: Cluster is about to start Dec 13, 2006 4:07:40 PM org.apache.catalina.tribes.transport.ReceiverBase bind INFO: Receiver Server Socket bound to:/127.0.0.1:4000 Dec 13, 2006 4:07:40 PM org.apache.catalina.tribes.membership.McastServiceImpl setupSocket INFO: Setting cluster mcast soTimeout to 500 Dec 13, 2006 4:07:40 PM org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers INFO: Sleeping for 1000 milliseconds to establish cluster membership, start level:4 Dec 13, 2006 4:07:41 PM org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers INFO: Done sleeping, membership established, start level:4 Dec 13, 2006 4:07:41 PM org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers INFO: Sleeping for 1000 milliseconds to establish cluster membership, start level:8 Dec 13, 2006 4:07:42 PM org.apache.catalina.tribes.membership.McastServiceImpl waitForMembers INFO: Done sleeping, membership established, start level:8 Dec 13, 2006 4:07:42 PM org.apache.catalina.core.StandardHost start INFO: XML validation disabled Dec 13, 2006 4:07:42 PM org.apache.catalina.tribes.tipis.AbstractReplicatedMap init INFO: Initializing AbstractReplicatedMap with context name:/test Dec 13, 2006 4:07:43 PM org.apache.catalina.ha.context.ReplicatedContext start SEVERE: Unable to start ReplicatedContext java.lang.ClassCastException: org.apache.naming.resources.ProxyDirContext cannot be cast to java.io.Serializable at org.apache.catalina.tribes.tipis.AbstractReplicatedMap$MapEntry.setValue (AbstractReplicatedMap.java:1060) at org.apache.catalina.tribes.tipis.AbstractReplicatedMap$MapEntry.<init> (AbstractReplicatedMap.java:1005) at org.apache.catalina.tribes.tipis.AbstractReplicatedMap.put (AbstractReplicatedMap.java:859) at org.apache.catalina.core.ApplicationContext.setAttribute (ApplicationContext.java:756) at org.apache.catalina.core.ApplicationContextFacade.setAttribute (ApplicationContextFacade.java:334) at org.apache.catalina.core.StandardContext.start (StandardContext.java:4296) at org.apache.catalina.ha.context.ReplicatedContext.start (ReplicatedContext.java:55) at org.apache.catalina.core.ContainerBase.addChildInternal (ContainerBase.java:760) at org.apache.catalina.core.ContainerBase.addChild (ContainerBase.java:740) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployDescriptor (HostConfig.java:626) at org.apache.catalina.startup.HostConfig.deployDescriptors (HostConfig.java:553) at org.apache.catalina.startup.HostConfig.deployApps (HostConfig.java:488) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent (HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent (LifecycleSupport.java:120) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014) at org.apache.catalina.core.StandardEngine.start (StandardEngine.java:443) at org.apache.catalina.core.StandardService.start (StandardService.java:451) at org.apache.catalina.core.StandardServer.start (StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:552) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Dec 13, 2006 4:07:43 PM org.apache.catalina.core.ContainerBase addChildInternal SEVERE: ContainerBase.addChild: start: LifecycleException: Failed to start ReplicatedContext: java.lang.ClassCastException: org.apache.naming.resources.ProxyDirContext cannot be cast to java.io.Serializable at org.apache.catalina.ha.context.ReplicatedContext.start (ReplicatedContext.java:58) -- Configure bugmail: 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