i just config my env according with quick start guide and comments jboss ajp protocal for http protocal to access my appclication but can't access successfully by http.   if open ajp, everything is ok.   i don't know why .  could anybody help me to resolve it?

Env:

       httpd-2.2.16        modc-cluster1.0.3GA for jboss 5.1.0GA

my http.conf below:

<VirtualHost 192.168.1.100:9999>
          <Directory />
          Order deny,allow
          Allow from all
        </Directory>

        KeepAliveTimeout 60
        MaxKeepAliveRequests 0

        ManagerBalancerName mycluster
        ServerAdvertise On
        AdvertiseFrequency 5
       ProxyPass / balancer://mycluster/
</VirtualHost>

<Location /mod_cluster-manager>
          SetHandler mod_cluster-manager
          Order deny,allow
#         Deny from all
          Allow from all
        </Location>

There is some exception when access appcliation via URL

21:32:57,629 INFO  [DefaultMCMPHandler] IO error sending command STATUS to proxy 192.168.1.100:9999
java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:529)
        at java.net.Socket.connect(Socket.java:478)
        at java.net.Socket.<init>(Socket.java:375)
        at java.net.Socket.<init>(Socket.java:218)
        at javax.net.DefaultSocketFactory.createSocket(SocketFactory.java:212)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler$Proxy.getConnection(DefaultMCMPHandler.java:1139)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler$Proxy.getConnectionWriter(DefaultMCMPHandler.java:1164)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.sendRequest(DefaultMCMPHandler.java:774)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.sendRequest(DefaultMCMPHandler.java:884)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.sendRequest(DefaultMCMPHandler.java:692)
        at org.jboss.modcluster.CatalinaEventHandler.status(CatalinaEventHandler.java:331)
        at org.jboss.modcluster.CatalinaEventHandler.status(CatalinaEventHandler.java:55)
        at org.jboss.modcluster.CatalinaEventHandlerAdapter.lifecycleEvent(CatalinaEventHandlerAdapter.java:163)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
        at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1348)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1612)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1601)
        at java.lang.Thread.run(Thread.java:619)
21:35:48,476 INFO  [DefaultMCMPHandler] IO error sending command STATUS to proxy 192.168.1.100:9999
java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(SocketInputStream.java:168)
        at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
        at java.io.InputStreamReader.read(InputStreamReader.java:167)
        at java.io.BufferedReader.fill(BufferedReader.java:136)
        at java.io.BufferedReader.readLine(BufferedReader.java:299)
        at java.io.BufferedReader.readLine(BufferedReader.java:362)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.sendRequest(DefaultMCMPHandler.java:792)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.sendRequest(DefaultMCMPHandler.java:884)
        at org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler.sendRequest(DefaultMCMPHandler.java:692)
        at org.jboss.modcluster.CatalinaEventHandler.status(CatalinaEventHandler.java:331)
        at org.jboss.modcluster.CatalinaEventHandler.status(CatalinaEventHandler.java:55)
        at org.jboss.modcluster.CatalinaEventHandlerAdapter.lifecycleEvent(CatalinaEventHandlerAdapter.java:163)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
        at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1348)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1612)
        at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1601)
        at java.lang.Thread.run(Thread.java:619)