How To Fix RT426 - Maximum Load of roll area [KB] since system start

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 426

• Message text: Maximum Load of roll area [KB] since system start

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RT426 - Maximum Load of roll area [KB] since system start ?

  The SAP error message RT426, which indicates "Maximum Load of roll area [KB] since system start," is related to the memory management of the SAP system, specifically concerning the roll area. The roll area is a part of the memory used by the SAP system to store data that cannot fit into the main memory (heap memory) during program execution. When the roll area reaches its maximum load, it can lead to performance issues or even system crashes.
  Cause:
  
  High Memory Usage: The primary cause of this error is that the roll area is being heavily utilized, often due to long-running transactions or programs that require a lot of memory.
  Insufficient Roll Area Size: The configuration of the roll area may not be sufficient for the workload being processed.
  Memory Leaks: There may be memory leaks in custom programs or standard SAP programs that are not releasing memory properly.
  High User Load: A sudden increase in the number of users or transactions can lead to increased memory consumption.
  
  Solution:
  
  
  Increase Roll Area Size: 
  
  You can increase the roll area size by adjusting the profile parameters in the SAP system. The relevant parameters are:
  
  rdisp/roll_area (size of the roll area)
  rdisp/roll_max (maximum number of roll areas)
  
  
  You can change these parameters in the instance profile and restart the SAP instance for the changes to take effect.
  
  
  
  Monitor and Optimize Programs:
  
  Use transaction ST22 (Dump Analysis) to check for any short dumps that may indicate memory issues.
  Analyze long-running transactions and optimize them to reduce memory consumption.
  
  
  
  Check for Memory Leaks:
  
  Review custom ABAP programs for potential memory leaks and ensure that they are properly releasing memory.
  
  
  
  System Monitoring:
  
  Use transaction ST03N (Workload Analysis) to monitor system performance and identify any bottlenecks or high memory usage patterns.
  
  
  
  Adjust User Load:
  
  If possible, manage the number of concurrent users or transactions to reduce the load on the system.
  
  
  
  Regular Maintenance:
  
  Regularly perform system maintenance tasks, such as clearing buffers and optimizing database performance, to ensure efficient memory usage.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and roll area issues for specific recommendations and best practices.
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration parameters.
  Performance Tuning: Consider engaging in performance tuning activities to optimize the overall system performance and memory usage.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the RT426 error and improve the stability and performance of your SAP system.