java stack and abap stack

[Former Member]

Hi,

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

Thanku

[Former Member · Accepted solution]

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

[Former Member]

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)

[Former Member]

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

[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.