I have Apache Http Server v2.2.3 configured as a reverse proxy with load
balancing to a WADI clustered application on Geronimo 2.1.5. Load balancing
and failover works fine if one of the Geronimo instances fail. However, if
only the application fails or is stopped I get a 404 error and failover does
not work? Apparently, Http server sees that the Geronimo server is up so
does not failover

Here’s the LB config:

<IfModule mod_proxy_balancer.c>
  <Proxy balancer://wadicluster>
      Order deny,allow
      Allow from all
     BalancerMember ajp://localhost:8209/NodeDetection loadfactor=50
route=node1
     BalancerMember ajp://localhost:8409/NodeDetection loadfactor=50
route=node2
  </Proxy>
  ProxyPass /NodeDetect balancer://wadicluster stickysession=JSESSIONID
         
  ProxyPassReverse /NodeDetect ajp://localhost:8209/NodeDetect
  ProxyPassReverse /NodeDetect ajp://localhost:8409/NodeDetect

  <Location /balancer-manager>
     SetHandler balancer-manager
     Order Deny,Allow
     Allow from all
  </Location>

</IfModule>

I need to make this work with an application failure as well as a server
failure. Any ideas? Thanks.
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