Apache代理与Tomcat做负载过程并且实现session共享

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1、修改apache http server配置文件http.conf,首先load三个model,代码如下:

LoadModule proxy_module modules/mod_proxy.soLoadModule proxy_ajp_module modules/mod_proxy_ajp.soLoadModule proxy_balancer_module modules/mod_proxy_balancer.soLoadModule proxy_connect_module modules/mod_proxy_connect.soLoadModule proxy_ftp_module modules/mod_proxy_ftp.soLoadModule proxy_http_module modules/mod_proxy_http.so

2、然后在此配置文件末端加入以下代码

ProxyPass / balancer://tomcatcluster/ProxyPassReverse / balancer://tomcatcluster/     <Proxy balancer://tomcatcluster>  BalancerMember ajp://localhost:8509 route=a  BalancerMember ajp://10.1.32.234:8510 route=bBalancerMember ajp://localhost:8510 route=c </Proxy># 警告:以下这段配置仅用于调试(监控),绝不要添加到生产环境中!!! 此处是监控代理负载的Tomcat群状态<Location /balancer-manager>    SetHandler balancer-manager    order Deny,Allow    Allow from all    Allow from localhost</Location> 

3、接下来修改Tomcat的server.xml文件,其中的port为前面<Proxy>中设定的端口。。 代码如下:

<!--Define an AJP 1.3 Connector on port 8009 -->    <Connectorport="8009"                enableLookups="false" redirectPort="8443" protocol="AJP/1.3"  URIEncoding="UTF-8" />


还要配置其route, jvmRoute也须同前面的设置一样。。。代码如下:

<!--Define the top level container in our container hierarchy-->    <Enginename="Catalina"defaultHost="localhost"jvmRoute="a">

4、另外,还需要在tomcat中将server.xml加入一下集群session复制配置 加入以下代码:(直接放开自带的注释会出问题)

<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"/>          -->                  <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="4001"                      selectorTimeout="100"                      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;"/>          <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.ClusterSessionListener"/>        </Cluster>

port=4001 在每个需要集群的Tomcat中 该端口不能相同


6、最后,要在要将web.xml文件<web-app>元素的最后加上: <distributable/>。一定要加上

将apache服务器以及tomcat服务器全部启动















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