How To Fix RSDD_ZA173 - BWA indexes that need to be rebuilt in order to improve performance

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD_ZA - Messages from TREX Aggregate Area

• Message number: 173

• Message text: BWA indexes that need to be rebuilt in order to improve performance

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD_ZA173 - BWA indexes that need to be rebuilt in order to improve performance ?

  The SAP error message RSDD_ZA173 indicates that the BWA (Business Warehouse Accelerator) indexes need to be rebuilt to improve performance. This message typically arises in the context of SAP BW (Business Warehouse) when the performance of queries is degraded due to outdated or corrupted BWA indexes.
  Cause:
  
  Data Changes: Frequent changes in the underlying data can lead to the BWA indexes becoming outdated. This can happen when data is loaded into the BW system, and the indexes are not automatically updated.
  Corruption: Index corruption can occur due to system issues, improper shutdowns, or other anomalies that affect the integrity of the indexes.
  Performance Degradation: Over time, as data accumulates and changes, the performance of queries may degrade, prompting the need for index rebuilding.
  
  Solution:
  To resolve the RSDD_ZA173 error and rebuild the BWA indexes, follow these steps:
  
  
  Rebuild BWA Indexes:
  
  Use the transaction code RSD1 to access the InfoProvider.
  Select the InfoProvider for which the BWA index needs to be rebuilt.
  Choose the option to rebuild the BWA index. This can typically be done through the context menu or by selecting the appropriate action in the toolbar.
  
  
  
  Schedule Regular Index Rebuilds:
  
  To prevent future occurrences, consider scheduling regular index rebuilds as part of your data load process. This can be done using process chains in SAP BW.
  
  
  
  Monitor Performance:
  
  After rebuilding the indexes, monitor the performance of your queries to ensure that the changes have had the desired effect.
  
  
  
  Check for Updates:
  
  Ensure that your SAP BW and BWA systems are up to date with the latest patches and updates, as performance improvements and bug fixes are often included in these updates.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may provide additional guidance or specific instructions related to your version of SAP BW and BWA.
  
  
  
  Related Information:
  
  BWA Overview: The Business Warehouse Accelerator is designed to improve query performance by creating and managing indexes for large datasets.
  Performance Tuning: Regularly monitor and tune your BW system for optimal performance, including analyzing query performance and adjusting data models as necessary.
  Documentation: Refer to SAP Help documentation for detailed instructions on managing BWA indexes and performance tuning in SAP BW.
  
  By following these steps, you should be able to resolve the RSDD_ZA173 error and improve the performance of your SAP BW queries.