How To Fix RSM1489 - Compression not necessary; no requests found for compressing

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM1 - Messages for AWB, Scheduler and Monitor (new)

• Message number: 489

• Message text: Compression not necessary; no requests found for compressing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM1489 - Compression not necessary; no requests found for compressing ?

  The SAP error message RSM1489 indicates that the system attempted to perform a compression operation on the data in the InfoCube, but there were no requests available for compression. This typically occurs in the context of SAP BW (Business Warehouse) when dealing with data loading and storage optimization.
  Cause:
  
  
  No Data Loaded: The most common reason for this error is that there are no data requests available in the InfoCube that can be compressed. This can happen if:
  
  Data has not been loaded into the InfoCube yet.
  All data requests have already been compressed.
  The data requests have been deleted or are not in a state that allows compression.
  
  
  
  Incorrect Request Status: The requests that are supposed to be compressed may not be in the correct status (e.g., they might be in a "failed" state or already processed).
  
  
  Timing of Compression: If the compression job is scheduled to run immediately after a data load, and the data load has not yet completed successfully, there may be no requests available for compression.
  
  
  Solution:
  
  
  Check Data Load Status: Ensure that data has been successfully loaded into the InfoCube. You can do this by checking the data load monitor (transaction RSA1) to see if there are any successful data load requests.
  
  
  Review Compression Settings: Verify the settings for the compression job. Ensure that the job is configured correctly and that it is set to look for the appropriate requests.
  
  
  Manually Trigger Compression: If you believe there should be data available for compression, you can manually trigger the compression process. Go to the InfoCube in transaction RSA1, right-click on the InfoCube, and select the option to compress.
  
  
  Check for Existing Compressed Requests: If all requests have already been compressed, you may need to load new data into the InfoCube before attempting compression again.
  
  
  Monitor Background Jobs: If the compression is scheduled as a background job, check the job logs to see if there are any issues or if the job is running as expected.
  
  
  Related Information:
  
  Compression in SAP BW: Compression is a process that reduces the size of the data stored in InfoCubes by consolidating data requests. This helps improve query performance and reduces storage requirements.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSMO (Manage Data Load), and RSCONN01 (for monitoring connections).
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to compression or data loading in your version of SAP BW.
  
  If the problem persists after checking these areas, consider reaching out to your SAP Basis or BW support team for further assistance.