How To Fix RT332 - Subtree: SAP instance memory management

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 332

• Message text: Subtree: SAP instance memory management

What causes this issue?

An application runs in a work process. The work process requires memory
for this application. The Memory Management System assigns the memory
to the process. Which type of memory is assigned in which order depends
on the work process type (Dialog or non-dialog) and the underlying
operating system.

How to fix this error?

You can find detailed information about the Memory Management System in
the SAP Library under:
<LS>SAP Library -> Basis Components -> Client/Server Technology
(BC-CST) -> Memory-Management (BC-CST-MM)</> .
<DS:KENO.6E977EC18423D511AE8F00A0C9EAF615>Link to this information</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT332 - Subtree: SAP instance memory management ?

  The SAP error message RT332, which pertains to "Subtree: SAP instance memory management," typically indicates an issue related to memory allocation or management within the SAP system. This error can arise due to various reasons, including insufficient memory resources, configuration issues, or problems with the underlying operating system.
  Causes:
  
  Insufficient Memory Allocation: The SAP instance may not have enough memory allocated to handle the current workload.
  Configuration Issues: Incorrect settings in the SAP profile parameters related to memory management (e.g., abap/heap_area_total, abap/heap_area_dia, etc.) can lead to this error.
  Operating System Limits: The operating system may impose limits on memory usage that can affect the SAP instance.
  Memory Leaks: Applications or processes running within the SAP environment may have memory leaks, consuming more memory over time.
  High Load: A sudden increase in user load or background jobs can lead to memory exhaustion.
  
  Solutions:
  
  
  Check Memory Allocation:
  
  Review and adjust the memory parameters in the instance profile. Ensure that the parameters are set according to the recommended values for your system's workload.
  Use transaction RZ10 to modify the instance profile parameters.
  
  
  
  Monitor Memory Usage:
  
  Use transaction ST02 (Tune Summary) to monitor memory usage and identify any bottlenecks or areas where memory is being consumed excessively.
  Check for any long-running processes or background jobs that may be consuming memory.
  
  
  
  Adjust Operating System Settings:
  
  Ensure that the operating system is configured to allow sufficient memory for the SAP instance. This may involve adjusting kernel parameters or system limits.
  
  
  
  Restart the SAP Instance:
  
  If the issue persists, consider restarting the SAP instance to clear any temporary memory issues.
  
  
  
  Analyze and Optimize Code:
  
  If specific ABAP programs or transactions are causing memory issues, analyze the code for potential optimizations or memory leaks.
  
  
  
  Upgrade Hardware:
  
  If the system consistently runs out of memory, consider upgrading the hardware to provide more RAM.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory can help in troubleshooting. SAP uses different memory areas, such as the heap area for dialog processes and the extended memory for background processes.
  Transaction Codes:
  
  ST02: Tune Summary for monitoring memory.
  RZ10: Profile parameter maintenance.
  SM50: Monitor active processes.
  SM66: Monitor global processes.
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory management and configuration best practices.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.