Use message server as load balancing instead of web dispacher for XI in HA

Hi all!
    We are currently upgrading a cluster XI installation from 3.0 to 7.0.
    The idea is:
          Now:    1 node (central instance)
                     1 node (database)
          Future: 1 node (central instance)
                     1 node (database + application instance)
     So we need some king of load balancing between the two instances.
     We already know web dispatcher and all configuration required. However we
were trying not to use it but use the abap/java message server who can also do
the redirect.
     However, once the Exchange Profile has been updated, it does not work.
     If we change "com.sap.aii.connect.repository.httpport" to "8101". Cache refresh stop working with a "Authorization Error". This is really strange because if I try the very same URL in the explorer and I enter the logon data, I have no problem.
     Do you have any experience with this? I mean, is it possible to avoid installing web dispatcher?
     Thanks and kind regards,
           Encinas.

Hi David,
the message server does only a redirect and some XI applications (JAVA and ABAP side) cannot handle the redirect URL.
Therefore in the XI environment you have to use a "real" dispatcher (keeping the session and forwarding the session, instead of redirect) - for example you can use the SAP WebDispatcher here.
Best regards,
Silvia

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Message was edited by:
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[urgent] 10gR2 RAC Load Balancing Configuration (client and server side)!!
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          Maria Carcedo <[email protected]> wrote in
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          > session will go to server 2, and so on (assuming you have round
          > robin).
          >
          > I hope this helps!
          >
          > Maria

Use message server as load balancing instead of web dispacher for XI in HA

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