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Tomcat6.0的集群配置与Tomcat5.5类似，由于Tomcat6.0做了许多更新，所以在Tomcat6.0 Server.xml中只需启用

<Cluster className=”org.apache.catalina.ha.tcp.SimpleTcpCluster”/> 

即可，Tomcat6.0的默认配置为：

<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=”4000″ 
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> 

可参考资料：http://zhidao.baidu.com/question/55407567.html

mod_jk地址：http://archive.apache.org/dist/tomcat/tomcat-connectors/jk