Distributed Statistics Records (DSRs) 

Definition

Statistics records are created to enable you to monitor the performance of an ABAP system and its components. These statistics records provide information about the workload generated and the resources used in the system by actions. This means that, on one hand, you obtain a very exact picture of the overall quality of a system, and on the other hand, in the case of a performance bottleneck, you obtain information about its cause. This concept was extended using Distributed Statistics Records (DSRs) on the non-ABAP components J2EE Engine, ITS, and BC. While statistics records for an ABAP system can only trace actions that are processed by ABAP components, with DSRs, you can trace actions that are processed using these non-ABAP components.

Structure

For information about the structure and functions of statistics records, see Functions and Structure of DSRs.

Integration

Statistics and trace information that was generated by the DSR service in the J2EE Engine are transferred by the SAPCCMSR agent with the –J2EE option to the central monitoring system with which it is registered. To do this, you must have installed, registered, and activated the SAPCCMSR agent with the –J2EE option. For information about this, see Installing an Agent on a Java Instance (Java Standalone System) or Installing an Agent on a Java Instance (Double-Stack System).

You can display DSRs and performance traces in the monitoring SAP System using the Global Workload Monitor and the functional trace:

·        The functional trace (transaction STATTRACE) displays the unaggregated raw statistical data (single record analysis), and the performance traces.

·        The statistical data is displayed in the Global Workload Monitor (transaction ST03G) after the collector aggregates it. You can display the aggregated data from different points of view, such as workload overview or time profile.

To be able to display J2EE statistics records and performance traces in the CCMS, you require a central monitoring system with a release status of SAP Web Application Server ABAP 6.40.

For an exact process description from the creation of the DSR and performance traces in the J2EE Engine to their display in the CCMS, see Displaying DSRs/Performance Traces of the J2EE Engine in CCMS.