How To Fix /SMB/RUNTIME_CORE191 - Activation Semaphore is deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/RUNTIME_CORE -

• Message number: 191

• Message text: Activation Semaphore is deleted

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 /SMB/RUNTIME_CORE191 - Activation Semaphore is deleted ?

  The SAP error message /SMB/RUNTIME_CORE191 Activation Semaphore is deleted typically indicates an issue related to the activation of a semaphore in the SAP system, particularly in the context of the SAP Business One or SAP Business ByDesign environments. This error can occur when the system attempts to access a semaphore that has already been deleted or is no longer valid.
  Causes:
  
  Concurrency Issues: Multiple processes may be trying to access or modify the same semaphore, leading to conflicts.
  System Resource Limitations: The system may be running low on resources, causing semaphores to be deleted unexpectedly.
  Improper Shutdown or Crash: If the system was not shut down properly, it could lead to orphaned semaphores or other resource issues.
  Configuration Issues: Incorrect configuration settings in the system can lead to semaphore management problems.
  
  Solutions:
  
  Restart the System: A simple restart of the SAP application server can often resolve temporary semaphore issues.
  Check System Logs: Review the system logs for any related errors or warnings that could provide more context about the issue.
  Increase Resource Limits: If the issue is related to resource limitations, consider increasing the limits for semaphores or other system resources.
  Review Configuration Settings: Ensure that the configuration settings related to semaphores and concurrency are correctly set.
  Patch or Update: Check for any available patches or updates for your SAP system that may address known issues related to semaphores.
  Contact SAP Support: If the issue persists, it may be necessary to contact SAP support for further assistance, especially if it is affecting production systems.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any documented issues related to this error message. SAP Notes often provide specific guidance or patches for known issues.
  Documentation: Review the official SAP documentation for your specific product (e.g., SAP Business One, SAP Business ByDesign) for best practices regarding semaphore management.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  Preventive Measures:
  
  Regularly monitor system performance and resource usage to identify potential issues before they lead to errors.
  Implement proper error handling in custom code to manage semaphore access more gracefully.
  Ensure that all users and processes are following best practices for system access and resource management.
  
  By following these steps, you should be able to address the /SMB/RUNTIME_CORE191 Activation Semaphore is deleted error effectively.