How To Fix ILM_STOR_CS080 - Shared semaphore value overflow

SAP Error Message - Details

• Message type: E = Error

• Message class: ILM_STOR_CS - ILM DB Store: Certification Suite Messages

• Message number: 080

• Message text: Shared semaphore value overflow

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ILM_STOR_CS080 - Shared semaphore value overflow ?

  The SAP error message ILM_STOR_CS080 indicates a "Shared semaphore value overflow." This error typically occurs in the context of the Information Lifecycle Management (ILM) component of SAP, which is responsible for managing data retention and archiving.
  Cause:
  The error is generally caused by a situation where the semaphore, which is a synchronization mechanism used to control access to a shared resource, has exceeded its maximum value. This can happen due to:
  
  High Concurrency: A large number of processes trying to access the same resource simultaneously, leading to contention and overflow.
  Configuration Issues: Incorrect configuration of the semaphore settings in the SAP system.
  Resource Leaks: Processes that do not release semaphores properly, leading to exhaustion of available semaphore values.
  
  Solution:
  To resolve the ILM_STOR_CS080 error, you can take the following steps:
  
  
  Check Semaphore Configuration:
  
  Review the semaphore settings in your SAP system. You may need to adjust the parameters related to semaphores in the instance profile.
  Look for parameters like rdisp/wp_no_btc (number of background work processes) and rdisp/wp_no_dia (number of dialog work processes) to ensure they are set appropriately for your workload.
  
  
  
  Monitor and Optimize Processes:
  
  Analyze the processes that are causing high contention for the semaphore. You can use transaction codes like SM50 or SM66 to monitor active processes.
  Optimize the processes to reduce the number of concurrent accesses to the shared resource.
  
  
  
  Restart the Application:
  
  In some cases, restarting the application or the entire SAP system can help clear the semaphore state and resolve the overflow issue.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as SAP may have released fixes for known issues related to semaphore management.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP Notes often contain specific instructions or patches that can help resolve issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed logs and information about the circumstances under which the error occurs.
  
  
  
  Related Information:
  
  SAP Documentation: Review the official SAP documentation on ILM and semaphore management for more detailed information.
  Performance Tuning: Consider performance tuning of your SAP system to handle high loads more effectively, which may help prevent semaphore overflow issues in the future.
  System Monitoring Tools: Utilize SAP monitoring tools to keep an eye on system performance and resource usage, which can help identify potential issues before they lead to errors.
  
  By following these steps, you should be able to diagnose and resolve the ILM_STOR_CS080 error effectively.