1. 如何配置tomcat节点之间进行会话共享？ 
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  3. １、首先确保节点服务器均运行正常。 
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  5. ２、修改节点服务器的server.xml文件。 
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  6. 　在以下行增加： 
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  7. <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>　　　＃允许集群,之前因为缺少这一行，
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  8. 一把下面的配置贴到tomcat中，tomcat立即不能正常工作。折腾多次，记录一下。
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  9.  <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" 
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  10.                  channelSendOptions="8"> 
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  12.           <Manager className="org.apache.catalina.ha.session.DeltaManager" 
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  13.                    expireSessionsOnShutdown="false" 
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  14.                    notifyListenersOnReplication="true"/> 
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  16.           <Channel className="org.apache.catalina.tribes.group.GroupChannel"> 
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  17.             <Membership className="org.apache.catalina.tribes.membership.McastService" 
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  18.                         address="228.0.0.4" 
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  19.                         port="45564" 
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  20.                         frequency="500" 
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  21.                         dropTime="3000"/> 
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  22.             <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver" 
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  23.                       address="auto" 
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  24.                       port="4000" 
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  25.                       autoBind="100" 
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  26.                       selectorTimeout="5000" 
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  27.                       maxThreads="6"/> 
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  29.             <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter"> 
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  30.               <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/> 
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  31.             </Sender> 
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  32.             <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/> 
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  33.             <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/> 
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  34.           </Channel> 
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  36.           <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" 
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  37.                  filter=""/> 
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  38.           <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/> 
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  40.           <Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer" 
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  41.                     tempDir="/tmp/war-temp/" 
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  42.                     deployDir="/tmp/war-deploy/" 
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  43.                     watchDir="/tmp/war-listen/" 
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  44.                     watchEnabled="false"/> 
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  46.           <ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/> 
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  47.           <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/> 
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  48.         </Cluster>    
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  50. 以上内容为群集的设置，通过组播相互交换更新session. 
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  51. 完成以上，还需要增加操作： 
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  52. mkdip /tmp/{war-temp,war-deploy,war-listen{ 
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  53. chmod 777 -R !$ 
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  54. 即可。 
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