JBoss and httpd are failing to join together due to "Invalid method in request INFO"

Solution Verified - Updated -

Issue

  • Attempting to set up mod_cluster through EWS but JBoss and httpd are failing to join together.
  • From the JBoss (EAP 5) logging, we see:

    ERROR [org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) Error [null: null: {4}] sending command INFO to proxy <IP>:<PORT>, configuration will be reset
    

    Or on EAP 6,7:

    ERROR [org.jboss.modcluster] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) MODCLUSTER000042: Error null sending INFO command to <IP>:<PORT>, configuration will be reset: null
    
  • And on the Apache side:

    127.0.0.1 - - [21/Jan/2015:04:38:50 -0500] "INFO / HTTP/1.1" 501 1255
    [error] [client <IP>] Invalid method in request INFO / HTTP/1.1
    

Environment

  • JBoss Enterprise Application Platform (EAP)
    • 5.x
    • 6.x
    • 7.x
  • JBoss Enterprise Web Server
    • Apache httpd
    • mod_cluster
      • 1.0.10.GA_CPx
      • 1.2.x
      • 1.3.x

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