How To Fix RT224 - Number of buffer swaps exceeded threshold

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 224

• Message text: Number of buffer swaps exceeded threshold

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 RT224 - Number of buffer swaps exceeded threshold ?

  The SAP error message RT224, which states "Number of buffer swaps exceeded threshold," typically indicates that the system is experiencing performance issues related to memory management, specifically with the buffer management in the SAP system. This error occurs when the number of buffer swaps exceeds a predefined threshold, which can lead to performance degradation.
  Causes:
  
  Insufficient Memory Allocation: The SAP system may not have enough memory allocated to handle the workload, leading to excessive swapping of buffers.
  High Workload: An increase in the number of users or transactions can lead to a higher demand for memory resources.
  Inefficient Buffer Configuration: The buffer settings may not be optimized for the current workload or system configuration.
  Database Performance Issues: Slow database performance can lead to increased buffer swapping as the system struggles to retrieve data.
  Application Design: Poorly designed applications or inefficient queries can lead to excessive memory usage.
  
  Solutions:
  
  Increase Memory Allocation: Review and increase the memory allocation for the SAP instance. This can be done by adjusting the profile parameters in the instance profile (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  Optimize Buffer Settings: Check and optimize the buffer settings in the SAP system. This includes adjusting parameters like dbs/ntab, abap/buffersize, and others based on the workload.
  Monitor Workload: Use transaction codes like ST03N or ST04 to monitor the workload and identify any spikes or trends that may be causing the issue.
  Database Tuning: Ensure that the database is properly tuned and optimized. This may involve analyzing slow queries, indexing, and other database performance tuning techniques.
  Review Application Code: Analyze the application code for inefficiencies that may be causing excessive memory usage. Optimize queries and data access patterns where possible.
  Increase Buffer Threshold: If appropriate, consider increasing the threshold for buffer swaps in the system configuration, but this should be done with caution and after thorough analysis.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or specific recommendations for your version of SAP.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have implemented.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools (like SAP Solution Manager) to gain deeper insights into system performance and identify bottlenecks.
  
  Conclusion:
  Addressing the RT224 error requires a comprehensive approach that includes monitoring system performance, optimizing memory and buffer settings, and ensuring that the application and database are functioning efficiently. Regular maintenance and performance tuning can help prevent this error from occurring in the future.