Apache in front of JBoss 6 -> Some proxy errors

Here under my Apache configuration:

<IfDefine TOMCAT>
    <IfModule mod_ssl.c>
       <IfModule mod_proxy_http.c>
          ProxyTimeout      300
          SetEnv force-proxy-request-1.0 1
          SetEnv proxy-nokeepalive 1
          ProxyPass        /unproxied/ !
          ProxyPass        /error/ !
          ProxyPass        /   http://127.0.0.1:8080/ retry=0 ttl=600
          ProxyPassReverse /   http://127.0.0.1:8080/
       </IfModule>
    </IfModule> </IfDefine>

Here my JBoss connector configuration:

    <Connector
        address              = "${jboss.bind.address}"
        port                 = "8080"
        maxThreads           = "200"
        acceptCount          = "100"
        scheme               = "https"
        secure               = "true"
        proxyName            = "mydomain.net"
        proxyPort            = "443"
        xpoweredBy           = "true"
        connectionTimeout    = "600000"
        compression          = "on"
        enableLookups        = "false"
        maxKeepAliveRequests = "-1"
        maxHttpHeaderSize    = "50000"
        />

In my Apache error.log:

[Tue Jul 16 09:54:54 2013] [error] ap_proxy_connect_backend disabling worker for (127.0.0.1)
[Tue Jul 16 09:57:35 2013] [error] (111)Connection refused: proxy: HTTP: attempt to connect to 127.0.0.1:8080 (127.0.0.1) failed

[EDIT] These errors appear around 1000 times per day but my web application seems to work as expected.

What could be the problem ?

Thanks,

Bob !

Answer

Attribution
Source : Link , Question Author : Bob Sauvage , Answer Author : Shane Madden