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I have JBoss clustring in use with Apache mod_cluster clustering. The modcluster configuration is the basic:

LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
LoadModule slotmem_module modules/mod_slotmem.so
LoadModule manager_module modules/mod_manager.so
LoadModule proxy_cluster_module modules/mod_proxy_cluster.so
LoadModule advertise_module modules/mod_advertise.so

Listen 10.33.144.3:6666
<VirtualHost 10.33.144.3:6666>

  <Directory />
    Order deny,allow
    Deny from all
    Allow from 10.33.144.
  </Directory>

  KeepAliveTimeout 60
  MaxKeepAliveRequests 0

  ManagerBalancerName mycluster
  AdvertiseFrequency 5

</VirtualHost>

Now I have a folder (/documentation) in ServerRoot containing html files I would like to serve through Apache instead JBoss. How is it possible to configure this specific folder to be outside the mod_cluster forwarding? Now when I try to access the /documentation folder I am directed to one of the JBoss nodes instead apache. Thanks!

drodil
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1 Answers1

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Well, that's quite easy: Add this directive just outside your mod_cluster enabled VirtualHost:

CreateBalancers: 1

Check out what it does: CreateBalancers docs. Furthermore, create a proxypass.conf in your conf.d/ with, e.g., this content:

ProxyPassMatch ^/documentation/ !
ProxyPass / balancer://mycluster stickysession=JSESSIONID|jsessionid nofailover=on
ProxyPassReverse / balancer://mycluster
ProxyPreserveHost on

If you experience any problems with cookies, try to play with: ProxyPassReverseCookie* directives.

The aforementioned snippet simply says: if it's /documentation/, don't forward it to the workers and serve it locally.

Lat but not least, where is your EnableMCPMReceive directive? What version of mod_cluster is it? I stongly suggest against using anything older than 1.2.0, and I recommend using the latest 1.2.6 version. Absence of EnableMCPMReceive implies a very old mod_cluster without a crucial security fix...

HTH

Karm

Michal Karm Babacek
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  • Did it work? There were some problems with ProxyPass integration in mod_cluster 1.2.4, it is fixed now in [mod_cluster 1.2.6](http://www.jboss.org/mod_cluster/downloads/1-2-6-Final-bin) :) – Michal Karm Babacek Oct 10 '13 at 09:30