How To Fix VIRT147 - Memory Swapped Out

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 147

• Message text: Memory Swapped Out

What causes this issue?

This is the total amount of memory that is swapped out.
On VMware, this is called 'Swapped Memory'.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT147 - Memory Swapped Out ?

  The SAP error message VIRT147: Memory Swapped Out typically indicates that the SAP system is experiencing memory management issues, specifically that the operating system has swapped out memory pages to disk. This can lead to performance degradation and may affect the overall stability of the SAP system.
  Causes:
  
  Insufficient Physical Memory: The server may not have enough physical RAM to handle the workload, leading the operating system to swap memory pages to disk.
  High Memory Usage: Applications or processes running on the server may be consuming excessive memory, causing the system to swap.
  Configuration Issues: Incorrect configuration of the SAP system or the underlying operating system can lead to inefficient memory usage.
  Memory Leaks: Certain applications or processes may have memory leaks, causing them to consume more memory over time.
  Operating System Limits: The operating system may have limits set on memory usage that are being exceeded.
  
  Solutions:
  
  Increase Physical Memory: If the server is consistently running out of memory, consider adding more RAM to the system.
  Optimize SAP Configuration: Review and optimize the SAP memory parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.) to ensure efficient memory usage.
  Monitor Memory Usage: Use monitoring tools to analyze memory usage patterns and identify processes that are consuming excessive memory.
  Check for Memory Leaks: Investigate and resolve any memory leaks in custom code or third-party applications that may be running on the SAP system.
  Adjust Operating System Settings: Review and adjust the operating system's memory management settings to better accommodate the SAP workload.
  Review Background Jobs: Check for any long-running or resource-intensive background jobs that may be consuming excessive memory and optimize or schedule them appropriately.
  Restart the SAP System: In some cases, a restart of the SAP system may temporarily alleviate the issue, but it is essential to address the underlying cause.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific recommendations and best practices.
  Operating System Logs: Review the operating system logs for any additional information regarding memory swapping and performance issues.
  SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance and guidance tailored to your specific environment.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the impact of the VIRT147 error and improve the performance and stability of your SAP system.