How To Fix RT427 - Currently used roll area [KB]

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 427

• Message text: Currently used roll area [KB]

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RT427 - Currently used roll area [KB] ?

  The SAP error message RT427 indicates that the currently used roll area has exceeded its allocated size. This typically occurs when the roll area, which is a memory space used by the SAP system to store user context and data during program execution, is insufficient for the current workload or user session.
  Cause:
  
  Insufficient Roll Area Size: The roll area size may be set too low for the current workload or the number of users.
  High Memory Consumption: Certain transactions or programs may consume more memory than usual, leading to the roll area being filled quickly.
  Long-Running Transactions: Transactions that take a long time to complete may hold onto memory longer than expected.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to inadequate memory allocation.
  
  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 - This parameter defines the size of the roll area.
  rdisp/roll_max - This parameter sets the maximum size of the roll area.
  
  
  To change these parameters, you can use transaction RZ10 to edit the instance profile and then restart the SAP instance for the changes to take effect.
  
  
  
  Monitor Memory Usage:
  
  Use transaction SM04 to monitor user sessions and their memory consumption. Identify any sessions that are consuming excessive memory and investigate the cause.
  
  
  
  Optimize Programs:
  
  Review and optimize any custom programs or transactions that may be consuming excessive memory. This may involve code optimization or breaking down large transactions into smaller, more manageable ones.
  
  
  
  Check for Memory Leaks:
  
  Investigate if there are any memory leaks in custom ABAP programs or third-party add-ons that could be causing excessive memory usage.
  
  
  
  Review System Configuration:
  
  Ensure that the overall system configuration is appropriate for the expected workload. This includes checking the settings for the instance and database.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  RZ10: To change instance profile parameters.
  SM04: To monitor user sessions.
  ST02: To check buffer and memory statistics.
  SM50: To monitor active processes and their memory usage.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration settings.
  
  
  Performance Tuning: Regularly perform system performance tuning to ensure optimal memory usage and system responsiveness.
  
  
  By following these steps, you should be able to resolve the RT427 error and improve the overall performance of your SAP system.