JBoss fails to join mod_cluster balancer due to negotiation error on httpd

Solution Verified - Updated -

Issue

  • JBoss is unable to join the mod_cluster balancer. httpd is receiving the INFO requests from JBoss but these are failing with a negotiation error like below:
[Thu Jan 25 05:21:11.915851 2024] [negotiation:error] [pid 450157:tid 450236] [client 127.0.0.1:64394] AH00687: Negotiation: discovered file(s) matching request: / (None could be negotiated).

Environment

  • JBoss Enterprise Application Platform (EAP) 7.x
  • JBoss Core Services (JBCS)
    • Apache httpd
    • mod_cluster

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