How To Fix 29837 - No more roll storage available

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 837

• Message text: No more roll storage available

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 29837 - No more roll storage available ?

  The SAP error message "29837 No more roll storage available" indicates that the system has run out of roll area memory. The roll area is a part of the SAP memory management system that is used to store data for user sessions, particularly for dialog processes. When the roll area is full, the system cannot allocate more memory for new user sessions, leading to this error.
  Causes:
  
  Insufficient Roll Memory Configuration: The roll memory may not be configured with enough space to handle the current workload.
  High User Load: A sudden increase in the number of concurrent users or processes can exhaust the available roll memory.
  Long-Running Transactions: Transactions that take a long time to complete can consume roll memory and prevent it from being freed up for new sessions.
  Memory Leaks: Poorly designed custom programs or ABAP code can lead to memory leaks, consuming roll memory unnecessarily.
  System Configuration Issues: Incorrect settings in the instance profile or parameters related to memory management.
  
  Solutions:
  
  
  Increase Roll Memory Size:
  
  You can increase the roll memory size by adjusting the instance profile parameters. Look for the parameter rdisp/roll_area and increase its value. This can be done in the SAP GUI:
  
  Go to transaction RZ10 (Edit Profile).
  Select the appropriate profile and change the rdisp/roll_area parameter.
  Save and restart the instance for the changes to take effect.
  
  
  
  
  
  Monitor and Optimize User Sessions:
  
  Use transaction SM04 to monitor active user sessions and identify any that are consuming excessive resources.
  Encourage users to log off when they are done to free up roll memory.
  
  
  
  Review Long-Running Transactions:
  
  Identify and optimize long-running transactions that may be holding onto roll memory for extended periods.
  
  
  
  Check for Memory Leaks:
  
  Review custom ABAP programs for potential memory leaks. Use transaction ST22 to check for dumps that may indicate issues.
  
  
  
  Adjust Other Memory Parameters:
  
  Review and adjust other related memory parameters such as abap/heap_area_dia and abap/heap_area_nondia to ensure that the overall memory allocation is balanced.
  
  
  
  System Restart:
  
  In some cases, a system restart may temporarily alleviate the issue, but it is essential to address the underlying cause to prevent recurrence.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RZ10: Profile maintenance
  SM04: User overview
  ST22: Dump analysis
  SM50: Process overview
  
  
  SAP Notes: Check SAP Notes related to memory management and roll area issues for specific guidance and recommendations.
  Documentation: Review SAP documentation on memory management for best practices and configuration guidelines.
  
  By addressing the root causes and implementing the suggested solutions, you can resolve the "No more roll storage available" error and improve the overall performance of your SAP system.