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Former Member

java stack and abap stack

Hi,

whats the diifrence in abap stack architecture and java stack architecture.

Thanku

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3 Answers

  • Best Answer
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    Former Member
    Apr 02, 2008 at 11:01 PM

    Java Stack is just another web application server like weblogic or so. It usually is used to run SAP Applications such as Portal/BI/XI/MI. However, it can also be used to host custom developed Apps. Some of the functional apps like XI/BI/MI access the ABAP part for certain/many functionalities and so you need ABAP part as well when you are running these apps. It basically depends on what your needs are.

    You could get very detailed info about SAP Web Application Server/ SAP Netweaver from following link :

    http://help.sap.com/saphelp_nw70/helpdata/en/e1/8e51341a06084de10000009b38f83b/frameset.htm

    Hope this helps.

    Regards,

    Snehal

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    Former Member
    Mar 17, 2008 at 05:58 AM

    Hi,

    ABAP Stack

    The application data in the SAP system is accessed in

    the ABAP stack via platform-independent ABAP programs.

    JAVA Stack

    The Java side of the SAP Web AS is often referred to as SAPWeb AS Java or

    as the Java stack.

    This central SAP Web AS Java instance consists of two separate

    instances plus one special application, the Software Deployment Manager (SDM).

    These two separate instances that build the central SAP Web AS Java instance are

    a standard SAP Web As Java instance, offering a Java dispatcher process and one

    or more Java server processes and the so-called SAP Central Services instance

    (SCS). The SCS instance offers two processes, exclusively used by the Java side

    of the SAP Web AS: the enqueue services and the message service. These two

    services only work for the Java side of the SAP system.

    You can also refer to the SAP TADM books for better clarifications.

    Regards,

    Sapndan

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    • Former Member

      Hi Spandan,

      I have gone through your description of the two stacks. But could you inform me as of which is preferred and why? Most of the installations i have come across are Dual Stack. Which is preferred and are there any performance related issues with the other?

      I would greatly appreciate any help in this regard. Thanks in advance.

      Regards,

      Savan Kumar D.

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    Former Member
    Apr 01, 2008 at 07:12 PM

    Java Stack is mainly used for SAP Portals and you can host Internet/Web based application written in JSP/EJB ,Java Stack uses Java Threads to run application,

    ABAP stack is used to run ERP applications mainly MM,SD,FICO etc

    Currently in most of the installation you can found mixed stack(ABAP+JAVA)

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