How To Fix RSD_TREX095 - Data of BWA index (InfoCube '&1') deleted from main memory

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 095

• Message text: Data of BWA index (InfoCube '&1') deleted from main memory

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_TREX095 - Data of BWA index (InfoCube '&1') deleted from main memory ?

  The SAP error message RSD_TREX095 indicates that the data of a BWA (Business Warehouse Accelerator) index for a specific InfoCube has been deleted from the main memory. This can occur for several reasons, and understanding the cause and potential solutions is important for maintaining the performance and reliability of your SAP BW system.
  Cause:
  
  Memory Management: The BWA uses a memory management system to optimize performance. If the system runs low on memory, it may evict data from memory to free up space for other processes.
  Data Refresh: If there is a data refresh or update process occurring, the BWA may clear out old data to make room for new data.
  Configuration Issues: Incorrect configuration settings for the BWA or the InfoCube can lead to inefficient memory usage.
  High Load: A high volume of queries or data processing tasks can lead to memory pressure, causing the BWA to delete data from memory.
  
  Solution:
  
  Monitor Memory Usage: Use transaction codes like ST02 (Buffer Monitor) and ST04 (Database Performance Monitor) to check memory usage and identify any bottlenecks.
  Increase Memory Allocation: If the BWA is consistently running out of memory, consider increasing the memory allocation for the BWA. This can be done through the BWA administration tools.
  Optimize Queries: Review and optimize the queries being run against the BWA. Reducing the complexity or volume of queries can help alleviate memory pressure.
  Check Configuration: Ensure that the BWA and InfoCube configurations are set correctly. This includes checking the settings for data loading, indexing, and memory management.
  Regular Maintenance: Perform regular maintenance tasks, such as re-indexing and data compression, to ensure optimal performance of the BWA.
  Update SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to BWA memory management.
  
  Related Information:
  
  BWA Administration: Familiarize yourself with the BWA administration tools and best practices for managing memory and performance.
  SAP BW Documentation: Refer to the official SAP BW documentation for detailed information on BWA configuration and optimization.
  SAP Community: Engage with the SAP Community forums to seek advice from other users who may have encountered similar issues.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the RSD_TREX095 error and improve the performance of your SAP BW system.