How To Fix RT561 - &1 &3 > &2 &3 (15 Min.) SAP buffer:buffer storage usage exceeds threshold

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 561

• Message text: &1 &3 > &2 &3 (15 Min.) SAP buffer:buffer storage usage exceeds threshold

What causes this issue?

The threshold value for the usage of the buffer store was exceeded.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

INCLUDE BC_BUFFER_INFO2 OBJECT DOKU ID TX LANGUAGE EN
<DS:NA.RT066>Buffer: Percentage Usage of the Buffer Store</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT561 - &1 &3 > &2 &3 (15 Min.) SAP buffer:buffer storage usage exceeds threshold ?

  The SAP error message RT561 indicates that the buffer storage usage has exceeded a predefined threshold. This can occur in various SAP buffer types, such as the program buffer, table buffer, or other memory buffers used by the SAP system. When the buffer usage exceeds the threshold, it can lead to performance issues or even system instability.
  Cause:
  
  High Data Volume: A large amount of data being processed or stored in the buffer can lead to exceeding the threshold.
  Inefficient Buffer Configuration: The buffer size may not be configured optimally for the workload and data volume.
  Frequent Changes: If there are frequent changes to the data that the buffer holds, it can lead to high usage.
  Long-running Transactions: Long-running transactions can keep data in the buffer longer than necessary, leading to increased usage.
  Insufficient Memory Allocation: The system may not have enough memory allocated to handle the current workload.
  
  Solution:
  
  Monitor Buffer Usage: Use transaction codes like ST02 (Tune Summary) or ST04 (Database Performance Analysis) to monitor buffer usage and identify which buffers are exceeding their thresholds.
  Adjust Buffer Size: Increase the buffer size in the SAP profile parameters. For example, parameters like abap/buffersize can be adjusted based on the requirements.
  Optimize Data Access: Review and optimize the way data is accessed and processed in the application to reduce unnecessary buffer usage.
  Regularly Clear Buffers: Implement a strategy to regularly clear buffers, especially if they are not being used efficiently. This can be done using transaction SM12 (to delete lock entries) or SM21 (to check system logs).
  Review Application Logic: Check the application logic for inefficiencies that may lead to excessive buffer usage, such as unnecessary data retrieval or processing.
  Increase System Resources: If the system is consistently running out of buffer space, consider increasing the overall system resources (CPU, memory) to better handle the workload.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to buffer management and performance tuning for specific recommendations and best practices.
  SAP Documentation: Refer to the official SAP documentation for detailed information on buffer management and configuration.
  Performance Monitoring Tools: Utilize SAP performance monitoring tools to analyze and optimize system performance.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the RT561 error and improve the overall performance of your SAP system.