title: What does the error message "all endpoints are disconnected" mean from mod_jk
body: <p>Does anyone know the meaning of the info message 
  "all endpoints are disconnected, detected by connect check (1), cping (0), send (0)"</p>
  
  <p>This occurs with some regularity in my mod_jk log, but I can't find information about whether this is a problem, or just something to ignore.</p>