How To Fix SAI_CACHE108 - Complete cache refresh started in background

SAP Error Message - Details

• Message type: E = Error

• Message class: SAI_CACHE - XI Configuration Cache

• Message number: 108

• Message text: Complete cache refresh started in background

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_CACHE108 - Complete cache refresh started in background ?

  The SAP error message SAI_CACHE108 indicates that a complete cache refresh has been initiated in the background. 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.
  Cause:
  The error message itself is not necessarily indicative of a problem; rather, it is a notification that a complete cache refresh process has started. This can occur for several reasons, including:
  
  Scheduled Cache Refresh: A scheduled job or process has been set up to refresh the cache periodically.
  Manual Trigger: An administrator or user may have manually triggered a cache refresh to ensure that the most up-to-date data is available.
  Data Model Changes: Changes in the underlying data model or data sources may necessitate a cache refresh to ensure that the cache reflects the latest data.
  Performance Optimization: To improve performance, a cache refresh may be initiated to clear outdated data and load fresh data into the cache.
  
  Solution:
  Since the message indicates that a cache refresh is in progress, there may not be an immediate action required unless the process is taking longer than expected or is causing issues. Here are some steps you can take:
  
  Monitor the Process: Check the status of the cache refresh process. You can do this through transaction codes like SM37 (Job Monitoring) to see if the job is running successfully or if it has encountered any issues.
  Check Logs: Review the logs for any errors or warnings that may indicate why the cache refresh is taking longer than expected.
  Performance Tuning: If cache refreshes are frequently taking too long, consider reviewing the data model, data volume, and performance tuning options to optimize the refresh process.
  Manual Refresh: If necessary, you can manually trigger a cache refresh using the appropriate transaction or program, but ensure that this is done during a maintenance window to avoid impacting users.
  Consult Documentation: Refer to SAP documentation or support notes for specific guidance related to cache management in your version of SAP BW or HANA.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSADMIN, RSRT, and RS_CACHE for cache management and monitoring.
  SAP Notes: Check SAP Notes for any known issues or updates related to cache management in your specific SAP version.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools to analyze the impact of cache refreshes on system performance.
  
  If the cache refresh is causing significant issues or if you encounter specific errors during the process, it may be beneficial to reach out to SAP support for further assistance.