Single Activity Trace 

Use

The Single Activity Trace (SAT) is used to trace individual activities in the system. The traces can then be examined in detail.

An activity can consist of one or more units, known as requests, which are assigned together with a user to a function module Session.

You can activate the SAT while the instance is running. It is not necessary to reset or restart the instance if the parameter settings are changed.

The collected data is stored centrally in the system’s database, and it can be read by each instance.

Concept

Data Management

Trace data is saved in two steps:

       1.      It is written to the local file system in the instance.

       2.      It is imported into the database

Writing to the file system saves having to synchronize the database, which could reduce system performance.

The user can trigger the import of trace data. Once the data has been imported, it can be displayed in the  VMC System Administration (transaction SM53), and is then visible to every instance in the system.

LUW Concept

To assign multiple requests to one SAP LUW, a transaction ID is assigned to each request. All requests belonging to an LUW can then be identified across the system. In other words, if one request executes one or more external RFC calls, these calls can have one transaction ID.

Features

In the VMC System Administration (transaction SM53) you can activate and configure the SAT, and display the results.

To activate and configure the SAT, choose Single Activity Trace → Configuration in the navigation. For more information, see Configuring SAT.

To display the traces, choose Single Activity Trace → Results. For more information, see Displaying SAT Results.