wojkxlq 发表于 2017-1-6 11:13:11

Apache 2.2.x+Tomcat6配置集群

在我们部署Web应用时，不可避免大多都会涉及到集群问题，此文作为Apache 2.2.x+Tomcat6配置集群的备忘。

配置Tomcat6 的conf\server.xml文件，启用集群设置，如果在本地同时运行多个Tomcat进行测试的话，需要修改部分端口号，以避免冲突
打开AJP：<Connector port="9009" protocol="AJP/1.3" redirectPort="9443" />
打开集群：
Xml代码
   <Engine name="Standalone" defaultHost="localhost" jvmRoute="jvm2">   

   <!--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="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="5001"      
    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>


         

   <!-- The request dumper valve dumps useful debugging information about   
          the request and response data received and sent by Tomcat.   
          Documentation at: /docs/config/valve.html -->
   <!--
   <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
   -->

   <!-- This Realm uses the UserDatabase configured in the global JNDI   
          resources under the key "UserDatabase".Any edits   
          that are performed against this UserDatabase are immediately   
          available for use by the Realm.-->
   <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
            resourceName="UserDatabase"/>

   <!-- Define the default virtual host   
          Note: XML Schema validation will not work with Xerces 2.2.   
      -->
   <Host name="localhost"appBase="webapps"
         unpackWARs="true" autoDeploy="true"
         xmlValidation="false" xmlNamespaceAware="false">

       <!-- SingleSignOn valve, share authentication between web applications   
            Documentation at: /docs/config/valve.html -->
       <!--
       <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
       -->

       <!-- Access log processes all example.   
            Documentation at: /docs/config/valve.html -->
       <!--   
       <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"   
            prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
       -->

   </Host>
   </Engine>

    <Engine name="Standalone" defaultHost="localhost" jvmRoute="jvm2">

      <!--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="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="5001"   
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>


      

      <!-- The request dumper valve dumps useful debugging information about
         the request and response data received and sent by Tomcat.
         Documentation at: /docs/config/valve.html -->
      <!--
      <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
      -->

      <!-- This Realm uses the UserDatabase configured in the global JNDI
         resources under the key "UserDatabase".Any edits
         that are performed against this UserDatabase are immediately
         available for use by the Realm.-->
      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
             resourceName="UserDatabase"/>

      <!-- Define the default virtual host
         Note: XML Schema validation will not work with Xerces 2.2.
       -->
      <Host name="localhost"appBase="webapps"
            unpackWARs="true" autoDeploy="true"
            xmlValidation="false" xmlNamespaceAware="false">

      <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
      <!--
      <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
      -->

      <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html -->
      <!--
      <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
      -->

      </Host>
    </Engine>2.打开Apache下的conf\httpd.conf文件，打开注释：

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

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

在文件末尾添加：

Html代码
ProxyRequests Off      
<Proxy balancer://cluster>      
    BalancerMember ajp://localhost:8009 loadfactor=1 route=jvm1
    BalancerMember ajp://localhost:9009 loadfactor=1 route=jvm2
</Proxy>   

ProxyRequests Off   
<Proxy balancer://cluster>   
BalancerMember ajp://localhost:8009 loadfactor=1 route=jvm1
BalancerMember ajp://localhost:9009 loadfactor=1 route=jvm2
</Proxy> 配置VirtualHost：

Xml代码
<VirtualHost *:80>      
         ServerAdmin test@126.com      
         ProxyPass / balancer://cluster/ stickysession=jsessionid nofailover=On      
         ProxyPassReverse / balancer://cluster/   
         ServerName www.mytest.com   
         ServerAlias mytest.com   
</VirtualHost>   

<VirtualHost *:80>   
         ServerAdmin test@126.com   
         ProxyPass / balancer://cluster/ stickysession=jsessionid nofailover=On   
         ProxyPassReverse / balancer://cluster/
         ServerName www.mytest.com
         ServerAlias mytest.com
</VirtualHost>

在应用程序的web.xml结尾加入：

Html代码
<distributable/>

<distributable/>

运行http://www.mytest.com，从tomcat日志可看出均衡和集群都起了作用，以上配置在WinXP +Apache 2.2.8 + tomcat6上测试通过！
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