mod_cluster 503s on requests with query strings

Solution Verified - Updated -


  • mod_cluster is 503ing our request immediately if it includes a query string.
  • A request for /request works but this same request with a query string, such as /request?test=foo, will 503 every time.


  • JBoss Enterprise Application Platform (EAP)
    • 6.0.1 and earlier
    • 5.1.2
  • Apache httpd
    • mod_cluster
      • 1.2.3.FINAL and earlier
      • 1.0.10.GA_CP02

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