BI Statistics 

Architecture

BI statistics allow you to record runtime data for BI processes and events in the BI suite, Analytic Engine and in the Data Warehouse. The system records performance-intensive processing steps (known as statistics events). It calculates the net times by calculating the runtime of an event using the difference between the start and end times (minus the times for other events called from within the event). You can also use the statistics to record the monitoring status of BI objects from the Data Warehouse.

Technical BI Content provides you with predefined BI objects for analyzing statistics data.

BI Administration Cockpit provides a central point of entry to the web templates in Technical BI Content. The BI Administration Cockpit enables integration with other portal entities, such as the universal worklist.

The graphic below illustrates the architecture of BI Administration Cockpit. The interaction between BI statistics, technical BI Content and BI Administration Cockpit is based on this architecture:

 

Recording BI Statistics

BI statistics are recorded for the following areas:

●      BI query runtimes (actions on the front end and in the Analytic Engine, including BI Integrated Planning)

In Data Warehousing Workbench, you can set which objects the system will record statistics for by choosing Tools → BI Statistics Settings.

●      Runtimes of subprocesses in SAP NetWeaver BIA index maintenance

In Data Warehousing Workbench, you can set which objects the system will record statistics for by choosing Tools → BI Statistics Settings.

●      Runtimes and status of data transfer and data processing in the Data Warehouse

The system always records statistics on the runtimes and status of data transfer and data processing in the Data Warehouse. This is not the case for statistics for the data transfer process. These are deactivated in the default setting and can be activated in table RSDDSTATOBJLEVEL. More information: SAP Note 966964.

●      Runtimes for performing planning functions

Depending on the area, the system writes the statistics recordings to tables RSDDSTAT* or UPC_STATISTIC*. For statistical analyses in Data Warehouse processes, tables RSMDATASTATE, RSMDATASTATE_EXT, RSDDSTATDTP, RSBKREQUEST, RSBSOURCEPROP, RSPCLOGCHAIN and RSPCPROCESSLOG are used too.

Analyzing BI Statistics

You have a number of options for analyzing statistics data. These options are illustrated in the following graphic and described below:

Analysis Using the Tables or Views

You can analyze the tables and views directly in the data browser (transaction SE16).

Analysis of query runtime statistics is simplified using views RSDDSTAT_OLAP and RSSDDSTAT_DM.

When analyzing the runtimes and status for the load and maintenance processes in Data Warehouse, tables RSDDSTATWHM and RSDDSTATDTP are particularly relevant.

Runtimes of subprocesses in SAP NetWeaver BIA index maintenance are analyzed in table RSDDSTATTREX.

Runtimes of planning functions are analyzed in UPC_STATISTIC* tables.

Analysis Using Technical BI Content for BI Statistics

Technical BI Content provides predefined BI objects for analyzing most statistics data.

The data is stored in the relevant InfoProviders. Queries and Web templates enable flexible analysis and differentiated display of information, for example using charts, table or graphics. While analyzing the statistics data using the technical BI Content provided is mandatory, you can define your own queries and Web templates to run analyses with. You can therefore take content from standard Web templates and combine it to make your own Web template. In the BI system, you can run technical content queries using Query Monitor (transaction RSRT).

Prerequisite:

You have activated technical BI Content. For more information, call Customizing and choose SAP NetWeaver  → Business Intelligence  →Settings for BI Content  →Business Intelligence →BI Administration Cockpit →Activate Technical Content in SAP NetWeaver BI.

We recommend using technical BI Content from SAP NetWeaver 7.0 BI Content Add-On 3 or higher.

Analysis (Technical Content) Using the Workload Monitor (ST03)

The workload monitor contains the function BI System Load, which you can use to analyze statistics data. The analysis is based on the technical content.

Analysis (Technical Content) Using BI Administration Cockpit

BI Administration Cockpit offers you a central point of entry to the web templates in the technical content. It provides you with an overview of critical situations in query runtime and the runtime and status of load and processing processes in the Data Warehouse. You can navigate to detailed information and to troubleshooting and optimization applications.

See SAP Note 934848 (collective Note; (FAQ) BI Administration Cockpit)

Requirements:

●      You have activated the technical content.

●      You have installed Business Package BI Administration 1.0.

●      You have made the other settings required.

For more information, call Customizing and choose SAP NetWeaver  → Business Intelligence  → Settings for BI Content  → Business Intelligence → BI Administration Cockpit.

If you want to call BI Administration Cockpit from the BIS system, make the Customizing settings SAP NetWeaver → Business Intelligence → General BI Settings → Settings for the Administration Cockpit.

As explained under Analysis Using Technical BI Content for BI Statistics, you can also use the InfoProviders, queries and Web templates used in BI Administration Cockpit without the portal, thus combining the standard Web templates into a Web template of your own.

Ad Hoc Analysis of Query Runtime Statistics

You can run an ad hoc analysis of the query runtime in Query Monitor.

You can display runtime statistics for Web applications by using URL parameter &PROFILING=X in the start URL of a Web application.

More information: Displaying BI Query Runtime Statistics on the Web

Direct Access to Statistics Tables Using Technical Content

As well as analysis scenarios based on persistently stored data, you can also access statistics data directly.

With persistent data storage, the statistics data is extracted from the tables in scheduled processes and stored in the relevant InfoProviders. If you want to analyze the data in real time, you can use the VirtualProvider tool in the technical BI content to read the data in the tables directly from the query or Web application.

Taking query runtime statistics as an example, the graphic below illustrates how you can use a MultiProvider to read periodically loaded delta data (recommendation: daily) from the InfoCube and to read delta data that has not been loaded yet directly from the statistics tables using a VirtualProvider.

Deleting Statistics Recordings

Query runtime statistics in particular generate a large amount of statistics data in the BI statistics tables Depending on the (user-defined) delta statistics level, between 20 and 80 data records are written to the BI statistics tables for each single navigation step. We therefore recommend loading the statistics data into the technical content and deleting the original data from BI statistics tables RSSDDSTAT* and UPC_STATISTIC* on a regular basis.

When using technical content, deletion of statistics recording for query runtime statistics is automated. For more information about this and about manually deleting data from RSDDSTAT tables, see Maintenance of Statistics Properties.

In transaction BPS_STAT0, you can delete statistics data from the UPC_STATISTIC* tables. You can enter a date for deletion of table entries. The system then deletes all entries whose recording date is earlier than the date you entered.

Additional Information

BI Query Runtime Statistics

Overview of Statistics Events (Table RSDDSTATEVENTS)

Statistics for Maintenance Processes in SAP NetWeaver BI Accelerator Indexes