How To Fix RT239 - Available commit charge

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 239

• Message text: Available commit charge

Copy of 1st and 2nd Block of RT 238

What causes this issue?

The commit charge is the total memory (physical and virtual) that is
used by programs or by the operating system. The term is used in the
Windows NT Task Manager, and its maximum value should be smaller than
the available main memory.
The available commit charge is maximum value set by the operating
system (Commit Charge Limit in Task Manager) minus the currently used
commit charge (Commit Charge Total).

System Response

If the commit charge is larger than the real main memory, performance
suffers due to increased paging.

How to fix this error?

If the available commit charge falls below the threshold, you should
set the value to the complete operating system value for the Commit
Charge. Note, however, that an increased demand on virtual memory
causes more paging if there is not enough main memory available.

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 RT239 - Available commit charge ?

  The SAP error message RT239, which refers to "Available commit charge," typically indicates that the system is running low on memory resources, specifically in terms of the available commit charge. This can lead to performance issues or even system crashes if not addressed.
  Cause:
  
  Memory Exhaustion: The system has consumed a significant portion of its available memory, leading to insufficient resources for new processes or transactions.
  High Workload: A sudden increase in workload or concurrent users can lead to high memory consumption.
  Memory Leaks: Certain applications or processes may not be releasing memory properly, leading to gradual exhaustion of available memory.
  Configuration Issues: Incorrect configuration of the SAP system or the underlying database can lead to inefficient memory usage.
  
  Solution:
  
  Monitor Memory Usage: Use tools like SAP's transaction ST02 (Tune Summary) or ST06 (Operating System Monitor) to monitor memory usage and identify any bottlenecks.
  Increase Memory Allocation: If possible, increase the memory allocation for the SAP instance or the underlying operating system.
  Optimize Workload: Analyze the workload and consider optimizing or scheduling heavy jobs during off-peak hours to reduce memory consumption.
  Check for Memory Leaks: Investigate and resolve any potential memory leaks in custom code or third-party applications.
  Adjust SAP Parameters: Review and adjust SAP memory parameters (e.g., abap/heap_area_total, abap/heap_area_dia, etc.) to better allocate memory based on the system's needs.
  Restart the System: In some cases, a restart of the SAP instance or the entire server may temporarily alleviate memory issues.
  Upgrade Hardware: If the system consistently runs low on memory, consider upgrading the server hardware to provide more RAM.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to memory management and performance tuning for specific guidance and best practices.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have faced similar issues.
  Documentation: Refer to SAP's official documentation for guidelines on memory management and system performance optimization.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the RT239 error and improve the overall performance of your SAP system.