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Single Web Dispatcher for Multiple SAP Systems

Having read a number of posts & S-Notes, I found that Web Dispatcher 7.2 is capable of routing between multiple SAP instances.

But despite having troubleshooted, I am unable to make it work. I have two separate installations ERP & Portal on the same host, but my web dispatcher only routes to one of them at the same time. Simultaneous access to these 2 systems is not possible either with URL or Port control procedure mentioned at url http://help.sap.com/saphelp_nw72/helpdata/en/c5/ec466f5544409982c7d3ca29ce1ad3/frameset.htm

Can anyone point an error in my below mentioned configuration of web dispatcher file.

I want requests on port 8853 of my web-dispatcher to be routed to system DEV &

the requests on port 8843 of my web-dispatcher to be routed to system DEP

"

rdisp/mshost = sapdeverp

ms/http_port = 8100

icm/server_port_0 = PROT=HTTP,PORT=8853

icm/server_port_1 = PROT=HTTP,PORT=8843

wdisp/system_0 = SID=DEV, MSHOST=sapdeverp, MSPORT=8100, SRCSRV=*:8853

wdisp/system_1 = SID=DEP, MSHOST=sapdeverp, MSPORT=8102, SRCSRV=*:8843

"

Can we mention multiple message servers instead of single message server "rdisp/mshost = sapdeverp

ms/http_port = 8100" ?

Any suggestions ?

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2 Answers

  • Best Answer
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    Former Member
    Nov 29, 2010 at 12:15 PM

    Hi.

    You have to remove the first two lines from webdispatcher profile and system respective values for MSHOST parameter :

    rdisp/mshost = sapdeverp

    ms/http_port = 8100

    icm/server_port_0 = PROT=HTTP,PORT=8853

    icm/server_port_1 = PROT=HTTP,PORT=8843

    wdisp/system_0 = SID=DEV, MSHOST=<Message server host of DEV system>, MSPORT=8100, SRCSRV=*:8853

    wdisp/system_1 = SID=DEP, MSHOST=<Message server host of DEP system>, MSPORT=8102, SRCSRV=*:8843

    Best regards,

    Aliaksandr Zhukau

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    Former Member
    Nov 29, 2010 at 12:19 PM

    Hi,

    I have not yet tried it but your configuration does not seem logical to me :

    I would delete these 2 lines

    rdisp/mshost = sapdeverp

    ms/http_port = 8100

    because they seem designed for usage with a single Message server.

    I would keep these 2 lines

    wdisp/system_0 = SID=DEV, MSHOST=sapdeverp, MSPORT=8100, SRCSRV=*:8853

    wdisp/system_1 = SID=DEP, MSHOST=sapdeverp, MSPORT=8102, SRCSRV=*:8843

    which define both message servers.

    Regards,

    Olivier

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    • Former Member Former Member

      I wonder why SDN posted the above comment with "Atif Sharif" ID instead of mine "Muhammad Ali Ahmed Siddiqui" probably coz it mixed my user id & the service marketplace sso certificate credentials.