How To Fix D3041 - RFC: No more buffer space left in Shared Memory

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 041

• Message text: RFC: No more buffer space left in Shared Memory

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message D3041 - RFC: No more buffer space left in Shared Memory ?

  The SAP error message D3041 RFC: No more buffer space left in Shared Memory typically indicates that the shared memory allocated for the SAP system has been exhausted. This can occur due to various reasons, such as high load on the system, insufficient memory allocation, or memory leaks in the application.
  Causes:
  
  Insufficient Shared Memory Allocation: The shared memory settings in the SAP system may not be configured to handle the current load.
  High Load: A sudden increase in the number of users or processes can lead to the exhaustion of available shared memory.
  Memory Leaks: Certain applications or processes may not be releasing memory properly, leading to a gradual depletion of available memory.
  Configuration Issues: Incorrect configuration of the SAP instance parameters related to memory management.
  
  Solutions:
  
  
  Increase Shared Memory Allocation:
  
  You can increase the shared memory allocation by adjusting the parameters in the instance profile. Look for parameters like rfc/Max_Connections, abap/heap_area_total, and abap/heap_area_dia.
  Use transaction RZ10 to modify the instance profile and then restart the instance for the changes to take effect.
  
  
  
  Monitor and Optimize Memory Usage:
  
  Use transaction ST02 (Tune Summary) to monitor memory usage and identify any bottlenecks.
  Check for any long-running transactions or processes that may be consuming excessive memory.
  
  
  
  Check for Memory Leaks:
  
  Use transaction ST22 (Dump Analysis) to check for any short dumps that may indicate memory leaks.
  Analyze the code for any custom developments that may not be releasing memory properly.
  
  
  
  Review System Load:
  
  Analyze the system load using transaction SM50 (Process Overview) to see if there are any processes that are consuming excessive resources.
  Consider load balancing or scaling the system if necessary.
  
  
  
  Adjust Kernel Parameters:
  
  If you are running on a UNIX/Linux system, you may need to adjust the kernel parameters related to shared memory (e.g., shmmax, shmall, etc.) to allow for more shared memory allocation.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific issue or provide additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RZ10: Profile maintenance
  ST02: Tune summary for memory monitoring
  ST22: Dump analysis
  SM50: Process overview
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration.
  SAP Community: Engage with the SAP Community for insights and solutions from other users who may have faced similar issues.
  
  By following these steps, you should be able to resolve the D3041 error and optimize the shared memory usage in your SAP system.