To configure PAS for OpenEdge instances for proxy load balancing, verify that chunking and HTTP sessions are enabled. These properties are enabled by default for the SOAP, REST, and WEB transports. See Use HTTP sessions for instructions about how to enable chunking and HTTP sessions for the APSV transport.

If you are not enabling sticky sessions on the Apache server, then you must configure the Apache server for session-free load balancing in which subsequent requests do not return to the same instance:
  1. Enable Cluster property in the /conf/server.xml file for each instance. You can use the feature action of the PASMAN command-line utility to set this property, for example:
    pasman -I instance-name feature Cluster=on
  2. Set the jvmRoute alias to blank. The jvmRoute alias is controlled by the psc.as.alias value and can be set to blank with PASMAN (rather than by manually editing /conf/server.xml), for example:
    pasman config psc.as.alias=
    Note: The jvmRoute alias translates to the route value in the http.conf file of the Apache server. For more information, see Configure Apache for proxy load balancing.
  3. Open the instance-name/conf/context.xml file in each instance and comment out the Manager section, for example:
    <!--  <Manager 
        maxActiveSessions="-1"
        pathname=""
        processExpiresFrequency="6"
        maxInactiveInterval="${psc.as.session.timeout}"
        sessionIdLength="22" >
     </Manager>  -->