Apache实现Tomcat集群

一,配置介绍

  1,linux

  2,tomcat6.0 (tomcat1,tomcat2)

  3,httpd( apache 版本(2.2.15))(需要命令安装)

  4, mod_jk-1.2.30-httpd-2.2.3.so (版本与上面的httpd要保持一致(2.2.x))

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二,各个配置说明

 

httpd

1,将下载好的jk-1.2.30-httpd-2.2.3.so放入Apache_Home/modules下面

2在Apache_home/conf目录下创建mod_jk.conf文件,里面内容为

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   #加载mod_jk Module
       LoadModule jk_module modules/mod_jk-1.2.30-httpd-2.2.3.so

      #加载集群中的workers
         JkWorkersFile conf/workers.properties
      #加载workers的请求处理分配文件
         JkMountFile conf/uriworkermap.properties
      #指定jk的日志输出文件
         JkLogFile logs/mod_jk.log
      #指定日志级别
         JkLogLevel warn
     #指定哪些请求交给tomcat处理,"controller"为在 workers.propertise里指定的负载分配控制器名 
         JkMount /* controller

 

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3,创建Apache_Home/conf/workers.properties

==================================

 #server 列表
         worker.list=controller,tomcat1,tomcat2
      #========tomcat1========
      #ajp13 端口号，在tomcat下server.xml配置,默认8009(更改server.xml下找到ajp/1.3进行更改)
        worker.tomcat1.port=8009
      #tomcat的主机地址，如不为本机，请填写ip地址
        worker.tomcat1.host=localhost
        worker.tomcat1.type=ajp13
     #server的加权比重，值越高，分得的请求越多
        worker.tomcat1.lbfactor=1
     #========tomcat2========
     #ajp13 端口号，在tomcat下server.xml配置,默认8009
       worker.tomcat2.port=9009
     #tomcat的主机地址，如不为本机，请填写ip地址
      worker.tomcat2.host=localhost
      worker.tomcat2.type=ajp13
    #server的加权比重，值越高，分得的请求越多
       worker.tomcat2.lbfactor=1
    #========controller,负载均衡控制器========
    #server名为controller,用于负载均衡
      worker.controller.type=lb

#重试次数
      worker.retries=3
   #指定分担请求的tomcat
     worker.controller.balanced_workers=tomcat1,tomcat2
   #粘性Session(默认是打开的) 当该属性值=True（或1）时，代表Session是粘性的，即同一Session在集群中的同一个节点上处理，Session不跨越节点。在集群环境中，一般将该值设置为False
     worker.controller.sticky_session=false
  #设置用于负载均衡的server的session可否共享 有不少文章说设置为1是可以的，也有设置为0才可以的
     worker.controller.sticky_session=1
  #worker.controller.sticky_session_force=1
  #worker.status.type=status

==================================

4,创建Apache_Home/conf/uriworkermap.properties

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  在Apache_Home\conf下建立uriworkermap.properties文件

      配置内容：

     #所有请求都由controller这个server处理
     /*=controller
     #所有包含jkstatus请求的都由status这个 server处理
     #/jkstatus=status
     #这里的"!”是“非”的意思。
     !/*.gif=controller
     !/*.jpg=controller
     !/*.png=controller
     !/*.css=controller
     !/*.js=controller
     !/*.htm=controller
     !/*.html=controller

 

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5,最后,在Apache_Home/conf/httpd.conf最后一行加include "/conf/mod_jk.conf"

 

二,两个tomcat的配置:由于是两个tomcat故http的端口号要设置不同,根据自己的设置需要

tomcat1:

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需要修改的内容

根据以上配置ajp13的端口号为8009

<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />

 

 

需要添加的内容：

    <!--tomcat1将与tomcat2黏贴session 在这里指定黏贴对象-->

    <Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2">  

      <!--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="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"
                      prot="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>   

 

 

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tomcat2:

=======================================

需要修改的内容

 

 

根据以上配置ajp13的端口号为8009

<Connector port="9009" protocol="AJP/1.3" redirectPort="8443" />

 

需要添加的内容:

 

 <!--tomcat2将与tomcat1黏贴session 在这里指定黏贴对象-->

<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">  

      <!--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="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="4001"  <!--与以上一个对比-->
                      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>   

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参照：http://www.iteye.com/topic/675914