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How to create Logon groups for JAVA Systems

Hi,

I am implementing an BI JAVA Landscape. We do have 1 Central Instance(CI) and 2 Dialog Instances (DI) JAVA Standalone. Everything based on NW04s

I have set up a Web Dispatcher to do a load balancing. The Web Dispatcher is connected to the Message Server (MS) of the JAVA CI to get all the information about the Engines.

I am now looking to create Logon groups to distibute the load according the application used applications. I am not sure if there is a possibility to set up logon groups (server groups) directly somewhere in the J2EE engine, or if I have to set this up in the WebDispatcher konfiguration files?!

Thanks in advance and best regards,

Dominik

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3 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Sep 20, 2006 at 10:39 AM

    Dominik

    You can setup zones for your application:

    1)Configure Zone separator http://help.sap.com/saphelp_nw04/helpdata/en/56/dcf4c12b072c4e89884dc164b3762c/frameset.htm

    2)Setup login groups

    http://help.sap.com/saphelp_nw04/helpdata/en/a9/775a421b5ec153e10000000a1550b0/frameset.htm

    3)Configure SAP webdispatcher to work with the zones

    http://help.sap.com/saphelp_nw04/helpdata/en/87/252c4142aef623e10000000a155106/frameset.htm

    Or you can configure the logon groups in sapwebdispatcher configuration:

    1) Find out Instance ID names.

    2) Set up info.icr file see note 740234

    Mine looks like this for 2 dialog instances

    #############

    Version 1.0

    J2EE1088500

    J2EE J2eedialoghostname1 50000 LB=100

    J2EE1088400

    J2EE J2eedialoghostname1 50000 LB=100

    ############

    3)set up icrgroups.txt

    Mine looks something like this defining a logon group

    INTRANET whit the two dialog instances

    #############################

    Version 1.0

    J2EE1088500

    J2EE1088400

    INTRANET:J2EE1088400,J2EE1088500

    ###############################

    4)Set up urlinfo.txt to assign urls to logon groups

    Mine looks like this.Assigning /nwa to INTRANET logon group

    ################################

    Version 1.0

    PREFIX=/nwa/&GROUP=INTRANET

    ################################

    Save files in startup directory of the sapwebdispatcher

    5)Edit sapwebdispatch startup profile:

    Add following parameters.

    wdisp/server_info_location = file://info.icr

    wdisp/group_info_location = file://icrgroups.txt

    wdisp/url_map_location = file://urlinfo.txt

    Startup sapwebdispatcher

    Good luck

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  • author's profile photo Former Member
    Former Member
    Posted on Sep 02, 2009 at 05:17 PM

    We're trying to do something similar with NetWeaver CE 7.1.

    According to [this documentation|http://help.sap.com/saphelp_nwce10/helpdata/en/45/3dbe11a82b6bf1e10000000a1553f6/frameset.htm] there are 3 steps to doing this for NetWeaver CE 7.1:

    1. Logon Groups

    2. Web Dispatcher profile changes

    3. HTTP Provider property changes

    We've set up a Logon Group in the NetWeaver nwa and associated the two instances (one host) with it.

    "[Configuring Logon Groups Using Configuration Files|http://help.sap.com/saphelp_nwce10/helpdata/en/45/3c3f0cad9f4c2de10000000a1553f6/frameset.htm]" says: "...to create the files using HTTP Provider service."

    There it doesn't say exactly how to generate those 3 text files; it says: "1. Create the icrgroups.txt and urlinfo.txt files that define the logon groups. For more information, see the documentation of SAP Web Dispatcher." ; but, has no link to what it says to see. So, I manually go to ["SAP Web Dispatcher", "Assigning Logon Groups"|http://help.sap.com/saphelp_nwce10/helpdata/en/b4/9aa8862e714e6db8e74e48e5d3283b/frameset.htm]. But, it all pretty much breaks down there because it's referring to apparently non-NetWeaver CE 7.1 stuff (as near as I can tell); for instance, how do the transactions SMLG and SICF relate to NetWeaver CE 7.1, or am I in the wrong place?

    I tried to press ahead with files similar to the examples here, but I hit this error in the Web Dispatcher:

    [Thr 5132] *** WARNING => ICT: path prefix /Curam/ not allowed in this context. Only prefix / allowed. [ictxxptab.c 764]

    [Thr 5132] *** WARNING => When a file is specified in wdisp/J2EE/url_map_location only URL prefix '/' is supported. See also SAP note 1033470. [icrxx.c 2925]

    The note reference looks hopeful, but I cannot read it; I get:

    Note 1033470   
     The requested SAP Note is either in reworking or is released internally only

    Does anyone have a copy of this Note or knows if it's helpful?

    Has anyone done this with NetWeaver CE 7.1?

    Tahnks,

    William

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  • author's profile photo Former Member
    Former Member
    Posted on Sep 09, 2009 at 06:55 PM

    Here's the documentation link for doing this "[Using Logon Groups for Load Balancing|http://help.sap.com/saphelp_nwce10/helpdata/en/45/3c61108c604c2ce10000000a1553f6/frameset.htm]". It describes doing this via the nwa and Web Dispatcher configuration files. While the former is recommended we had more success with the latter. Note: don't try doing both ways as they conflict.

    Thanks,

    William

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