Question

我想为在tomcat中运行的应用程序进行群集和负载平衡。我使用的是ubuntu，apache版本2.4.18和两个tomcat 8.5实例。我尝试使用mod_jk，但它不适合我。

以下是我在apache和tomcat中的配置

在jk.conf中

<IfModule jk_module>

 JkWorkersFile /etc/apache2/conf/workers.properties

 JkLogFile /etc/apache2/log/mod_jk.log

 JkLogLevel info

 JkShmFile /etc/apache2/log/jk-runtime-status

 JkWatchdogInterval 60

 JkMount /clusterjsp/* loadbalancer
 JkMount /jk-status status

 <Location /jk-status>
    JkMount jk-status
    Order deny,allow
    Deny from all
    Allow from 127.0.0.1
 </Location>

 <Location /jk-manager>
    JkMount jk-manager
    Order deny,allow
    Deny from all
    Allow from 127.0.0.1
 </Location>
</IfModule>

在workers.properies

中

worker.list=loadbalancer,status
worker.server1.port=8009
worker.server1.host=127.0.0.1
worker.server1.type=ajp13
worker.server1.connection_pool_size=200
worker.server1.connection_pool_timeout=600
worker.server1.socket_keepalive=1

worker.server2.port=7009
worker.server2.host=127.0.0.1
worker.server2.type=ajp13
worker.server2.connection_pool_size=200
worker.server2.connection_pool_timeout=600
worker.server2.socket_keepalive=1

worker.server1.lbfactor=1
worker.server2.lbfactor=1

worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=server1,server2

worker.status.type=status

和tomcat server.xml

<Engine name="Catalina" defaultHost="localhost" jvmRoute="server1"> <!-- server2 for another instance -->

  <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">

      <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
        <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>
      </Sender>

      <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver" address="auto" port="4000" autoBind="100" selectorTimeout="5000" maxThreads="50"/>
      <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
      <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatchInterceptor"/>
    </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.ClusterSessionListener"/>
</Cluster>

<Realm className="org.apache.catalina.realm.LockOutRealm">
    <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>
</Realm>

<Host name="localhost"  appBase="webapps" unpackWARs="true" autoDeploy="true">
 <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log" suffix=".txt" pattern="%h %l %u %t &quot;%r&quot; %s %b" />
</Host>

</Engine>

我没有在apache2.conf中做任何更改，或者我在apache主目录中没有httpd.conf。我已经在tomcat服务器上部署了相同的应用程序，并且在使用http://localhost:8080/clusterjsp和http://localhost:7070/clusterjsp时它正在工作但是当我在浏览器中输入http://localhost/clusterjsp时，它给出了404错误，但http://localhost显示apache默认页面。

您能否告诉我我错过的内容或配置中的错误。

Answer 1

可能是因为您将所有与/clusterjsp/*匹配的传入请求重定向到负载均衡器，但您没有处理在上下文后没有任何内容的请求路径。您可以尝试将此行添加到您的jk.conf：

JkMount /clusterjsp loadbalancer

还有其他方法，但可能这是最容易测试的方法。

在ubuntu中使用tomcat 8进行Apache集群和负载均衡

1 个答案: