How To Fix D4409 - SAP/OS400 roll management: Free roll areas - maximum number of elements

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 409

• Message text: SAP/OS400 roll management: Free roll areas - maximum number of elements

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D4409 - SAP/OS400 roll management: Free roll areas - maximum number of elements ?

  The SAP error message D4409, which pertains to SAP/OS400 roll management, indicates that the maximum number of elements in the free roll areas has been reached. This typically occurs in environments where the SAP system is running on IBM iSeries (AS/400) systems.
  Cause:
  The error is caused by the exhaustion of available roll area space in the SAP system. Roll areas are used to store data for user sessions, and when the maximum number of elements (or entries) in the free roll areas is reached, the system cannot allocate additional space for new sessions or processes. This can happen due to:
  
  High User Load: A large number of concurrent users or processes can lead to rapid consumption of roll area space.
  Configuration Limits: The system may be configured with a low limit for the number of roll areas or the size of each roll area.
  Memory Leaks: Inefficient coding or poorly designed programs can lead to memory not being released properly, consuming roll area space unnecessarily.
  Long-Running Transactions: Transactions that take a long time to complete can hold onto roll area space longer than necessary.
  
  Solution:
  To resolve the D4409 error, consider the following steps:
  
  
  Increase Roll Area Size:
  
  You can increase the size of the roll areas in the SAP profile parameters. Look for parameters like rdisp/roll_area and rdisp/roll_max in the instance profile and adjust them accordingly.
  
  
  
  Monitor User Sessions:
  
  Use transaction codes like SM04 or AL08 to monitor active user sessions. Identify and terminate any unnecessary or idle sessions that may be consuming roll area space.
  
  
  
  Optimize Programs:
  
  Review and optimize custom programs or transactions that may be consuming excessive roll area space. Ensure that they are efficiently coded and do not hold onto resources longer than necessary.
  
  
  
  Adjust System Configuration:
  
  Review the overall system configuration and consider increasing the number of roll areas or adjusting other related parameters to better accommodate the user load.
  
  
  
  Restart the Application Server:
  
  In some cases, a restart of the application server may help clear up roll area usage and free up resources.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on roll area management and configuration.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Performance Monitoring Tools: Utilize performance monitoring tools to analyze system performance and identify bottlenecks related to roll area usage.
  
  By following these steps, you should be able to address the D4409 error and improve the roll management in your SAP/OS400 environment.