How To Fix CACSAPPL117 - A shared-memory error has occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: CACSAPPL - General Messages for Commission Applications

• Message number: 117

• Message text: A shared-memory error has occurred

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CACSAPPL117 - A shared-memory error has occurred ?

  The SAP error message CACSAPPL117 indicates that a shared-memory error has occurred in the SAP system. This type of error typically relates to issues with the shared memory management in the SAP environment, which can affect the performance and stability of the application.
  Causes:
  
  Insufficient Shared Memory Allocation: The shared memory allocated to the SAP instance may be insufficient for the current workload.
  Configuration Issues: Incorrect configuration settings in the SAP profile parameters related to shared memory.
  Memory Leaks: Applications or processes that are not releasing memory properly can lead to exhaustion of available shared memory.
  System Resource Limits: Operating system-level limits on shared memory segments may be reached.
  Kernel Bugs: Bugs in the SAP kernel or the underlying operating system can also lead to shared memory errors.
  
  Solutions:
  
  
  Increase Shared Memory Allocation:
  
  Check the current shared memory settings in the instance profile (e.g., abap/heap_area_total, abap/heap_area_dia, etc.).
  Increase the values as necessary and restart the SAP instance.
  
  
  
  Review Configuration Parameters:
  
  Ensure that the parameters related to shared memory are correctly configured. Common parameters include:
  
  rdisp/Shared_Pool_Size
  rdisp/Shared_Memory
  
  
  Adjust these parameters based on the system's requirements.
  
  
  
  Monitor and Optimize Memory Usage:
  
  Use transaction codes like ST02 (Tune Summary) to monitor memory usage and identify any potential memory leaks.
  Analyze the workload and optimize the applications to reduce memory consumption.
  
  
  
  Check Operating System Limits:
  
  On Unix/Linux systems, check the shared memory limits using commands like ipcs -lm and adjust the kernel parameters (e.g., shmmax, shmall) in the /etc/sysctl.conf file.
  On Windows, ensure that the system has sufficient resources allocated for shared memory.
  
  
  
  Update SAP Kernel:
  
  Ensure that you are running the latest version of the SAP kernel, as updates may contain fixes for known issues related to shared memory.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the CACSAPPL117 error.
  
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like ST02 (for memory analysis) and SM21 (for system logs) to gather more information about the error.
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  Documentation: Review the SAP Basis documentation for guidelines on memory management and configuration best practices.
  
  By following these steps, you should be able to diagnose and resolve the shared-memory error indicated by the CACSAPPL117 message.