How To Fix SAI_CACHE844 - Complete cache refresh executed with &1 objects

SAP Error Message - Details

• Message type: E = Error

• Message class: SAI_CACHE - XI Configuration Cache

• Message number: 844

• Message text: Complete cache refresh executed with &1 objects

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAI_CACHE844 - Complete cache refresh executed with &1 objects ?

  The SAP error message SAI_CACHE844 indicates that a complete cache refresh has been executed for a specific number of objects (denoted by &1). This message is typically related to the SAP BW (Business Warehouse) or SAP HANA environments where caching mechanisms are used to improve performance by storing frequently accessed data in memory.
  Cause:
  The message is informational rather than an error. It usually occurs in the following scenarios:
  
  
  Data Model Changes: If there have been changes to the data model, such as changes in InfoObjects, InfoProviders, or transformations, a complete cache refresh may be triggered to ensure that the cache reflects the latest data structure.
  
  
  Data Load Operations: After a data load operation, especially if it involves significant changes or updates, a complete cache refresh may be executed to ensure that the data in the cache is up-to-date.
  
  
  System Maintenance: Regular maintenance tasks or system upgrades may also lead to a complete cache refresh.
  
  
  Solution:
  Since this message is informational, there is typically no action required unless you are experiencing performance issues or unexpected behavior. However, if you want to manage cache more effectively, consider the following:
  
  
  Monitor Cache Usage: Regularly monitor cache usage and performance metrics to ensure that the cache is functioning optimally.
  
  
  Schedule Refreshes: If you find that complete cache refreshes are happening too frequently, consider scheduling them during off-peak hours or after significant data loads.
  
  
  Review Data Model Changes: If frequent cache refreshes are a concern, review any recent changes to the data model or data load processes that may be triggering these refreshes.
  
  
  Consult Documentation: Refer to SAP documentation or support notes for specific guidance related to your version of SAP BW or HANA.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to cache management in your specific SAP version.
  Performance Tuning: Look into performance tuning guides for SAP BW or HANA to optimize cache usage and data load processes.
  SAP Community: Engage with the SAP Community forums for insights and experiences from other users who may have encountered similar messages.
  
  In summary, the SAI_CACHE844 message is a normal part of SAP's cache management process, and while it does not indicate an error, understanding its context can help in managing system performance effectively.