i konw this is an old thread, but i disabled clustering on my jboss eap 5 "production" profile by doing:

delete deploy/cluster

delete farm

delete deploy-hasingleton

remove the following section from the BootstrapProfileFactory bean defined in conf/bootstrap/profile.xml

<property name="farmURIs">

         <list elementClass="java.net.URI">

            <value>${jboss.server.home.url}farm</value>

         </list>

      </property>

remove the following section from the VFSCache  bean defined in conf/bootstrap/vfs.xml

<entry>

          <key>${jboss.server.home.url}farm</key>

          <value><inject bean="VfsNamesExceptionHandler"/></value>

        </entry>

ive only tested that http works after as this is the only service i need.