How To Fix RMAN_PRPL062 - Exception occurred during locking of shared memory area

SAP Error Message - Details

• Message type: E = Error

• Message class: RMAN_PRPL - Messages for Applications Within Package RMAN_PRPL

• Message number: 062

• Message text: Exception occurred during locking of shared memory area

Self-Explanatory Message

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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 RMAN_PRPL062 - Exception occurred during locking of shared memory area ?

  The SAP error message RMAN_PRPL062, which indicates that an exception occurred during the locking of a shared memory area, typically relates to issues with the SAP system's ability to access or manage shared memory. This can happen for various reasons, including system configuration issues, resource limitations, or problems with the underlying operating system.
  Causes:
  
  Insufficient Memory: The system may not have enough memory allocated for the SAP instance, leading to issues when trying to lock shared memory.
  Configuration Issues: Incorrect configuration settings in the SAP profile parameters related to memory management can lead to this error.
  Operating System Limits: The operating system may have limits on shared memory segments that are being exceeded.
  Concurrent Access: Multiple processes trying to access the same shared memory area simultaneously can lead to locking issues.
  Corrupted Shared Memory: If the shared memory segment is corrupted, it can cause locking failures.
  
  Solutions:
  
  
  Check Memory Allocation:
  
  Ensure that the SAP instance has sufficient memory allocated. You can check the instance profile parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.) and adjust them as necessary.
  
  
  
  Review SAP Profile Parameters:
  
  Review the instance profile parameters related to shared memory and adjust them if needed. Parameters like rdisp/SharedMemory and rdisp/SharedMemorySize may need to be configured correctly.
  
  
  
  Operating System Configuration:
  
  Check the operating system settings for shared memory. For example, on Unix/Linux systems, you may need to adjust parameters like shmmax, shmmin, shmni, and shmseg in the kernel settings.
  
  
  
  Restart the SAP Instance:
  
  Sometimes, simply restarting the SAP instance can resolve temporary locking issues.
  
  
  
  Check for Concurrent Processes:
  
  Investigate if there are multiple processes trying to access the same shared memory area. If so, ensure that they are properly synchronized.
  
  
  
  Clear Shared Memory Segments:
  
  If you suspect that the shared memory segments are corrupted, you may need to clear them. This can usually be done by stopping the SAP instance and using operating system commands to remove the shared memory segments.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  
  
  
  System Logs:
  
  Review the system logs (e.g., dev_w0, dev_rfc) for any additional error messages or warnings that could provide more context about the issue.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Operating System Documentation: Consult the documentation for your specific operating system to understand how to configure shared memory settings.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.