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From Filip Hanik - Dev Lists <devli...@hanik.com>
Subject Re: Clustering probleme
Date Fri, 20 Feb 2009 00:16:28 GMT
It's a serialization error. One of the attributes in your session that 
was serialized on serverA, failed to deserialize on serverB
Are you possible running different versions of the same class on the two 
servers?

Filip

Stephane DUCAS wrote:
> Hello I've tryed vertical clustered tomcat installation (two instances) but
> I have an issue when configuraiong it with:
>
>  <ClusterListener
> className="org.apache.catalina.ha.session.ClusterSessionListener"/>
>
> When I  comment out this line I have no problem but session is not recovered
> when one node crash
>
> When I put this line, loadbalancing don't work (only one node is really
> hitted) I have this exception in log files of the unhitted node:
>
> java.lang.IllegalStateException: unread block data
>         at
> java.io.ObjectInputStream$BlockDataInputStream.setBlockDataMode(ObjectInputStream.java:2377)
>         at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1361)
>         at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
>         at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
>         at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
>         at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
>         at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
>         at
> org.apache.catalina.ha.session.DeltaRequest$AttributeInfo.readExternal(DeltaRequest.java:361)
>         at
> org.apache.catalina.ha.session.DeltaRequest.readExternal(DeltaRequest.java:255)
>         at
> org.apache.catalina.ha.session.DeltaManager.deserializeDeltaRequest(DeltaManager.java:621)
>         at
> org.apache.catalina.ha.session.DeltaManager.handleSESSION_DELTA(DeltaManager.java:1379)
>         at
> org.apache.catalina.ha.session.DeltaManager.messageReceived(DeltaManager.java:1334)
>         at
> org.apache.catalina.ha.session.DeltaManager.messageDataReceived(DeltaManager.java:1093)
>         at
> org.apache.catalina.ha.session.ClusterSessionListener.messageReceived(ClusterSessionListener.java:87)
>         at
> org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:899)
>         at
> org.apache.catalina.ha.tcp.SimpleTcpCluster.messageReceived(SimpleTcpCluster.java:880)
>         at
> org.apache.catalina.tribes.group.GroupChannel.messageReceived(GroupChannel.java:269)
>         at
> org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79)
>         at
> org.apache.catalina.tribes.group.interceptors.TcpFailureDetector.messageReceived(TcpFailureDetector.java:110)
>         at
> org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79)
>         at
> org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79)
>         at
> org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor.messageReceived(ThroughputInterceptor.java:86)
>         at
> org.apache.catalina.tribes.group.ChannelInterceptorBase.messageReceived(ChannelInterceptorBase.java:79)
>         at
> org.apache.catalina.tribes.group.ChannelCoordinator.messageReceived(ChannelCoordinator.java:241)
>         at
> org.apache.catalina.tribes.transport.ReceiverBase.messageDataReceived(ReceiverBase.java:225)
>         at
> org.apache.catalina.tribes.transport.nio.NioReplicationTask.drainChannel(NioReplicationTask.java:188)
>         at
> org.apache.catalina.tribes.transport.nio.NioReplicationTask.run(NioReplicationTask.java:91)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
>         at java.lang.Thread.run(Thread.java:619)
>
>
> I've tryed with sun jdk's 1.5, 1.6 and open jdk (both 64bit and 32bit) but I
> have always the same..
>
> I running with mod_jk and sticky_session=true..
>
> Here are my conf files:
>
> Server.xml (node1 and node2 are the same except jvMRoute and some ports):
>
> <?xml version='1.0' encoding='utf-8'?>
> <!--
>   Licensed to the Apache Software Foundation (ASF) under one or more
>   contributor license agreements.  See the NOTICE file distributed with
>   this work for additional information regarding copyright ownership.
>   The ASF licenses this file to You under the Apache License, Version 2.0
>   (the "License"); you may not use this file except in compliance with
>   the License.  You may obtain a copy of the License at
>
>       http://www.apache.org/licenses/LICENSE-2.0
>
>   Unless required by applicable law or agreed to in writing, software
>   distributed under the License is distributed on an "AS IS" BASIS,
>   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
>   See the License for the specific language governing permissions and
>   limitations under the License.
> -->
> <!-- 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="10005" 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">
>
>     <!--The connectors can use a shared executor, you can define one or more
> named thread pools-->
>     <!--
>     <Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
>         maxThreads="150" minSpareThreads="4"/>
>     -->
>     <!-- 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="10080" protocol="HTTP/1.1"
>                connectionTimeout="20000"
>                redirectPort="10443" />
>     <!-- A "Connector" using the shared thread pool-->
>     <!--
>     <Connector executor="tomcatThreadPool"
>                port="8080" protocol="HTTP/1.1"
>                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" SSLEnabled="true"
>                maxThreads="150" scheme="https" secure="true"
>                clientAuth="false" sslProtocol="TLS" />
>     -->
>
>     <!-- Define an AJP 1.3 Connector on port 8009 -->
>     <Connector port="10009" protocol="AJP/1.3" redirectPort="10443" />
>
>
>     <!-- 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="Catalina" defaultHost="localhost" jvmRoute="jvm1">
>     -->
>     <Engine name="Catalina" defaultHost="localhost" jvmRoute="node2">
>
>       <!--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"
> channelSendOptions="6">
>
>           <Manager className="org.apache.catalina.ha.session.BackupManager"
>                    expireSessionsOnShutdown="false"
>                    notifyListenersOnReplication="true"
>                    mapSendOptions="6"/>
>
>
>
>           <Manager className="org.apache.catalina.ha.session.DeltaManager"
>                    expireSessionsOnShutdown="false"
>
>                   notifyListenersOnReplication="true" mapSendOptions="6"/>
>           <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="4002"
>                       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"/>
>             <Interceptor
> className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/>
>           </Channel>
>
>           <Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
>
> filter=".*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;"/>
>           <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>
>
>       <!-- 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.AccessLogValve"
> directory="logs"
>                prefix="localhost_access_log." suffix=".txt" pattern="common"
> resolveHosts="false"/>
>         -->
>
>       </Host>
>     </Engine>
>   </Service>
> </Server>
>
>
> AND
>
> worker.properties:
>
> #La liste des tomcat qui rentre dans notre load-balancer, plus l'alias sur
> le load-balancer
> worker.list=loadbalancer,node1,node2
>
> #La config du load-balencer
> worker.loadbalancer.type=lb
> worker.loadbalancer.balanced_workers=node1,node2
> worker.loadbalancer.sticky_session=1
>
> #Le premier tomcat
> worker.node1.type=ajp13
> worker.node1.host=127.0.0.1
> worker.node1.port=9009
> worker.node1.lbfactor=10
>
> #Le second Tomcat, attention soit l'hôte soit le port doivent différés
> worker.node2.type=ajp13
> worker.node2.host=127.0.0.1
> worker.node2.port=10009
> worker.node2.lbfactor=10
>
>
> I really need to set up this vertical cluster, THX in advance!
>
>   


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