SAP AS Java Administration · AS Java Architecture & Dual Stack

An email (SMTP) request and a P4 request both hit a dual-stack SAP NetWeaver AS. Which component receives them, and which stack processes each?

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More in AS Java Architecture & Dual Stack

What decides whether an SAP NetWeaver AS system can run ABAP programs, Java programs, or both?

In a dual-stack system, all ABAP work processes are currently busy and a new request arrives. What happens to it and which component handles that?

In a multi-instance AS ABAP+Java system, what provides the enqueue (lock) service, and what is the alternative to designating a central instance?

A browser request enters a multi-instance dual-stack system. What routing decision does the SAP Web Dispatcher make versus the ICM?

Does a SAP GUI user reach the system through the same ICM/Web Dispatcher path as a browser user?

Is the ICM part of the SAP kernel dispatcher process, or a separate process, and what starts it?

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