How To Fix VIRT339 - Max. Unreferenced Interval Count

VIRT339 - Overview

• Message type: E = Error

• Message class: VIRT - Virtualization Monitoring

• Message number: 339

• Message text: Max. Unreferenced Interval Count

Max. Unreferenced Interval Count
The average high unreferenced interval count (UIC) is an indicator of
central storage contention. A low UIC count indicates that storage
contention is high and you might experience storage problems. (Maximum
value within the last collection interval)

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VIRT339 - Max. Unreferenced Interval Count ?

  The SAP error message VIRT339, which states "Max. Unreferenced Interval Count," typically occurs in the context of SAP's Virtual Memory Management. This error indicates that the system has reached the maximum number of unreferenced intervals that can be handled by the memory management system. This can lead to performance issues or even system crashes if not addressed.
  
  Cause:
  
  Memory Configuration: The system may not be configured optimally for the workload, leading to excessive unreferenced intervals.
  High Workload: A sudden increase in workload or data processing can lead to a spike in memory usage, causing the system to hit the limit.
  Memory Leaks: There may be memory leaks in the application or in the SAP kernel, which can lead to unreferenced intervals accumulating over time.
  Improper Cleanup: The system may not be properly cleaning up unreferenced intervals, leading to an overflow.
  
  
  Solution:
  
  Increase the Limit: If possible, increase the maximum unreferenced interval count in the system configuration. This