How To Fix SHMM100 - Monitoring object for shared objects

SAP Error Message - Details

• Message type: E = Error

• Message class: SHMM - Shared Objects Monitor

• Message number: 100

• Message text: Monitoring object for shared objects

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 SHMM100 - Monitoring object for shared objects ?

  The SAP error message SHMM100, which states "Monitoring object for shared objects," typically relates to issues with the shared memory management in the SAP system. This error can occur in various scenarios, often when there are problems with the configuration or allocation of shared memory areas.
  Cause:
  
  Insufficient Memory Allocation: The shared memory areas may not be adequately configured or allocated, leading to insufficient memory for the SAP processes.
  Configuration Issues: Incorrect settings in the instance profile or parameters related to shared memory management can trigger this error.
  Kernel Issues: Sometimes, the error can be related to the SAP kernel version being outdated or incompatible with the current configuration.
  Resource Limits: Operating system-level limits on shared memory segments may also cause this error.
  
  Solution:
  
  
  Check Memory Configuration:
  
  Review the instance profile parameters related to shared memory, such as shmmax, shmall, and sem settings.
  Ensure that the parameters are set according to the recommended values for your SAP system and the underlying operating system.
  
  
  
  Adjust Shared Memory Settings:
  
  If you find that the shared memory settings are insufficient, you may need to increase the values. This can typically be done in the operating system configuration files (e.g., /etc/sysctl.conf for Linux).
  After making changes, apply them using the command sysctl -p (for Linux) or restart the system.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes that address the specific error message or related issues. SAP frequently updates its knowledge base with solutions for known problems.
  
  
  
  Update SAP Kernel:
  
  Ensure that you are using a supported and up-to-date version of the SAP kernel. If necessary, download and apply the latest kernel patch.
  
  
  
  Monitor System Resources:
  
  Use monitoring tools to check the current usage of shared memory and other resources. This can help identify if the system is under heavy load or if there are memory leaks.
  
  
  
  Consult SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on your system configuration and logs.
  
  
  
  Related Information:
  
  SAP Basis Administration: Understanding shared memory management is crucial for SAP Basis administrators, as it directly impacts system performance and stability.
  Operating System Documentation: Familiarize yourself with the shared memory management settings specific to your operating system (e.g., Linux, AIX, Windows).
  SAP Community: Engaging with the SAP Community can provide insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to diagnose and resolve the SHMM100 error in your SAP system.