小编Mar*_*zke的帖子

我在ubuntu服务器上测试Tomcat Clustering了session replicationapache作为前端负载均衡器.根据我的测试经验,我说最好不要使用tomcat集群,而是将每个节点作为独立运行,不知道彼此没有任何会话复制,因为我觉得它很慢,需要花费很多时间来启动tomcat服务并消耗更多内存.并且FarmDeployer总是在部署中是不可靠的,并且整个配置应该放置在<Host></Host>农场部署者工作的元素下以及每个虚拟主机,因此是一个巨大的server.xml文件.下面是我使用的节点之一的集群配置的tomcat虚拟主机.

<Host name="site1.mydomain.net" debug="0" appBase="webapps" unpackWARs="true" autoDeploy="true">
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="virtual_log1." suffix=".log" timestamp="true"/>
<Context path="" docBase="/usr/share/tomcat/webapps/myapp" debug="0" reloadable="true"/>

<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster">
<Manager className="org.apache.catalina.ha.session.DeltaManager" 
          expireSessionsOnShutdown="false"
          notifyListenersOnReplication="true"/>

        <Channel className="org.apache.catalina.tribes.group.GroupChannel">
            <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
                  address="192.168.1.8"
                  port="4001"
                  selectorTimeout="100"
                  maxThreads="6"/>
            <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
            <Interceptor className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor">
                <Member className="org.apache.catalina.tribes.membership.StaticMember"
                      port="4002"
                      securePort="-1"
                      host="192.168.1.9"
                      domain="staging-cluster"
                      uniqueId="{0,1,2,3,4,5,6,7,8,9}"/>

             <!--   <Member className="org.apache.catalina.tribes.membership.StaticMember"
                      port="4002"
                      securePort="-1"
                      host="192.168.1.9"
                      domain="staging-cluster"
                      uniqueId="{0,1,2,3,4,5,6,7,8,9}"/> -->

            </Interceptor>
        </Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>

<ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>

  <Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
            tempDir="/usr/share/tomcat/temp/"
            deployDir="/usr/share/tomcat/webapps/"
            watchDir="/usr/share/tomcat/watch/"
            watchEnabled="true"/>
    </Cluster> …