How To Fix /SCMB/TDL_CONF_MESS018 - SHM LOADER: SHM territory creation stopped due to lack of memory

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMB/TDL_CONF_MESS -

• Message number: 018

• Message text: SHM LOADER: SHM territory creation stopped due to lack of memory

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 /SCMB/TDL_CONF_MESS018 - SHM LOADER: SHM territory creation stopped due to lack of memory ?

  The SAP error message /SCMB/TDL_CONF_MESS018 indicates that the SHM (Shared Memory) loader encountered an issue while trying to create a territory due to insufficient memory. This typically occurs in the context of SAP Supply Chain Management (SCM) when the system is unable to allocate the necessary memory resources for the operation.
  Cause:
  
  
  Insufficient Memory Allocation: The most common cause is that the system does not have enough memory allocated to handle the SHM operations. This can be due to:
  
  Low physical memory on the server.
  Configuration settings that limit the amount of memory available for SAP processes.
  High load on the system, leading to memory exhaustion.
  
  
  
  Configuration Issues: Incorrect configuration of the SAP instance parameters related to memory management can also lead to this error.
  
  
  Memory Leaks: If there are memory leaks in the application or other processes consuming excessive memory, it can lead to this error.
  
  
  Solution:
  
  
  Increase Memory Allocation:
  
  Check the current memory settings in the SAP system. You can do this by reviewing the instance profile parameters (e.g., abap/heap_area_total, abap/heap_area_dia, abap/heap_area_nondia).
  Increase the values of these parameters as needed to allocate more memory for the SAP processes.
  
  
  
  Monitor System Resources:
  
  Use tools like SAP Solution Manager or operating system monitoring tools to check the memory usage on the server.
  Identify any processes that are consuming excessive memory and take appropriate action (e.g., terminating unnecessary processes).
  
  
  
  Review and Optimize Configuration:
  
  Review the configuration of the SHM settings in the SAP system. Ensure that the settings are optimized for your workload.
  Consult SAP Notes or documentation for recommended settings based on your system's size and usage patterns.
  
  
  
  Restart the SAP System: In some cases, a restart of the SAP system may help to clear up memory issues temporarily.
  
  
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for memory-related issues.
  
  
  Consult SAP Support: If the problem persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They may provide specific guidance based on your system configuration and usage.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes that address memory management and SHM issues. These notes often contain specific recommendations and fixes.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the memory issue.
  Performance Monitoring: Use transaction ST02 (Buffer Management) and ST04 (Database Performance) to monitor memory usage and performance metrics.
  
  By addressing the memory allocation and configuration issues, you should be able to resolve the error and allow the SHM territory creation process to proceed successfully.