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From "Rob Stewart" <>
Subject [users@httpd] Re: Only the first request = 'Invalid direct reference to form login page' but not the rest.
Date Fri, 01 Aug 2008 10:15:34 GMT
Turns out my first request problem WAS a configuration issue. Here's
the details in case you see something similar...

When you have two tomcats and wish to cluster them with
simpleTCPCluster and AJP protocol via an Apache HTTPD reverse proxy...

  You MUST specify a 'jvmRoute' for each Tomcat in their 'server.xml'
files AND a 'route' in the proxy balancer...

    <Engine name="Catalina"

  BalancerMember ajp:// route=tc1

  Otherwise the first (and only the first) request fails - the load
balancer sends the 2nd request to the wrong node.

  This is even if you are NOT using mod_jk as specified on the how-to docs...

  In other words - the docs need updated. At least in my opinion.

  Oh and watch out! If you copy and paste the value from the xml to
the conf file be sure to remove the quotes - as the conf file will
take them as part of the route name and drive you INSANE whilst you
try to figure out what is wrong. ( route="tc1" will not match with
jvmRoute="tc1" ).

Rob (

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