Getting "[warn] can't find a ping/pong logic" at start-up on Apache httpd/mod_cluster

Solution Unverified - Updated -

Issue

The following warning log message is shown in error_log at start-up on Apache httpd/mod_cluster:

[warn] can't find a ping/pong logic

Environment

  • JBoss Web Server 1.x/2.x/3.x
  • Apache httpd 2.2/2.4
  • mod_cluster

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