Mod_cluster in combination with ProxyPass for non-clustered content

[jeroenvds]

Hi,

I currently have a mod_cluster cluster with Redhat EAP 6.2 nodes configured, but I would like to have a small Jetty served application to also be available using the same VirtualHost. I currently have this configuration:

<VirtualHost *:8080>
 <Directory />
   Order deny,allow
   Allow from all
 </Directory>

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

 <Location /jettyapp>
   ProxyPass http://localhost:8081/jettyapp
   Order deny,allow
   Allow from all
 </Location>

 KeepAliveTimeout 60
 ManagerBalancerName eandiscluster
 ServerAdvertise On
 EnableMCPMReceive On
</VirtualHost>

However, now the clustered contexts result in a 404, while the mod_cluster-manager and jettyapp urls are available. Is there a way to have both the mod_cluster contexts available AND an extra context using ProxyPass?

[spolti]

Yes, it is possible, but, where are your mod_cluster configs?

[winfinit]

your example should work, however there might be some caveats, such as protocol adjustment (http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#envsettings) so your config would looks something similar to this:

<Location /bar>

       ProxyPass  http://localhost:4451/cluster/foo

       SetEnv force-proxy-request-1.0 1

       SetEnv proxy-nokeepalive 1

</Location>

if you have multiple virtual hosts, then look at CreateBalancers configuration (Chapter 3. httpd configuration), to create mod_cluster rules in every host, you would need it to set that to 0.

CreateBalancers 0

[rhusar]

CreateBalancers 0

Correct, that should do most of the trick.

[jeroenvds]

Thanks, this did the trick. Final version of the configuration:

    <VirtualHost *:8080>  
     <Directory />  
       Order deny,allow  
       Allow from all  
     </Directory>  
      
     <Location /mod_cluster-manager>  
       SetHandler mod_cluster-manager  
       Order deny,allow  
       Allow from all  
     </Location>  
      
     <Location /jettyapp>  
       ProxyPass http://localhost:8081/jettyapp  
       Order deny,allow  
       Allow from all  
       CreateBalancers 0
     </Location>  
      
     KeepAliveTimeout 60  
     ManagerBalancerName eandiscluster  
     ServerAdvertise On  
     EnableMCPMReceive On  
    </VirtualHost>