How To Fix VIRT429 - Memory Lent

SAP Error Message - Details

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 429

• Message text: Memory Lent

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 VIRT429 - Memory Lent ?

  The SAP error message VIRT429, which indicates "Memory Lent," typically occurs in the context of SAP's Virtual Memory Management. This error suggests that the system has run out of available memory resources, which can happen for various reasons, including high workload, insufficient memory allocation, or configuration issues.
  Causes of VIRT429 Memory Lent
  
  Insufficient Memory Allocation: The SAP system may not have enough memory allocated to handle the current workload.
  High Workload: A sudden increase in transactions or background jobs can lead to memory exhaustion.
  Memory Leaks: Certain programs or transactions may not release memory properly, leading to gradual memory depletion.
  Configuration Issues: Incorrect settings in the SAP memory management parameters can lead to inefficient memory usage.
  System Limits: The underlying operating system or hardware may impose limits on memory usage that the SAP system cannot exceed.
  
  Solutions to VIRT429 Memory Lent
  
  
  Increase Memory Allocation:
  
  Review and increase the memory settings in the SAP profile parameters (e.g., abap/heap_area_total, abap/heap_area_dia, abap/heap_area_nondia).
  Ensure that the operating system has sufficient physical and virtual memory available.
  
  
  
  Optimize Workload:
  
  Analyze the workload and identify any long-running or resource-intensive transactions that can be optimized or scheduled during off-peak hours.
  Use transaction codes like ST03N (Workload Analysis) to monitor and analyze system performance.
  
  
  
  Check for Memory Leaks:
  
  Use transaction ST22 (Dump Analysis) to check for short dumps that may indicate memory leaks.
  Review custom code and third-party add-ons for potential memory issues.
  
  
  
  Adjust Configuration:
  
  Review and adjust the SAP memory management parameters in the instance profile.
  Consider using the SAP Memory Management Guide for best practices on configuring memory settings.
  
  
  
  System Monitoring:
  
  Implement monitoring tools to keep track of memory usage and system performance.
  Use transaction SM04 (User Overview) to monitor active user sessions and their memory consumption.
  
  
  
  Upgrade Hardware:
  
  If the system consistently runs out of memory, consider upgrading the server hardware to provide more RAM.
  
  
  
  Related Information
  
  SAP Notes: Check SAP Notes related to memory management and the specific error message for any patches or updates that may address the issue.
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  Documentation: Refer to the official SAP documentation on memory management for detailed guidelines and best practices.
  
  By addressing the underlying causes and implementing the suggested solutions, you can resolve the VIRT429 Memory Lent error and improve the overall performance of your SAP system.