mod_jk error "cping/cpong after connecting to the backend server failed (errno=110)"

Solution Unverified - Updated -

Issue

  • We regularly see errors like the following trying to proxy to JBoss with mod_jk:

    [error] ajp_connect_to_endpoint::jk_ajp_common.c (1050): (node1) cping/cpong after connecting to the backend server failed (errno=110)
    

Environment

  • JBoss Enterprise Application Platform (EAP)
  • Apache httpd
  • mod_jk

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