How To Fix 00850 - Total size of extended memory

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 850

• Message text: Total size of extended memory

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 00850 - Total size of extended memory ?

  The SAP error message "00850 Total size of extended memory" typically indicates that the system has reached the limit of the extended memory allocation for the SAP application server. This can occur when the memory settings are not configured properly or when the workload on the server exceeds the available memory resources.
  Cause:
  
  Memory Configuration: The extended memory settings in the SAP system may not be configured correctly, leading to insufficient memory allocation for the processes.
  High Workload: A sudden increase in the number of users or processes can lead to high memory consumption, causing the system to run out of extended memory.
  Memory Leaks: Certain programs or transactions may have memory leaks, consuming more memory over time and leading to exhaustion of available resources.
  System Limits: The operating system or database may have limits on the amount of memory that can be allocated to a single process.
  
  Solution:
  
  
  Adjust Memory Parameters:
  
  Use transaction code RZ10 to adjust the profile parameters related to memory. Key parameters include:
  
  abap/heap_area_dia: This parameter controls the size of the dialog process heap.
  abap/heap_area_nondia: This parameter controls the size of the non-dialog process heap.
  abap/heap_area_total: This parameter controls the total size of the extended memory.
  
  
  Increase these parameters based on the available system resources and the expected workload.
  
  
  
  Monitor Memory Usage:
  
  Use transaction SM04 to monitor user sessions and their memory consumption.
  Use transaction SM50 to check the status of work processes and their memory usage.
  
  
  
  Optimize Programs:
  
  Review custom programs and transactions for potential memory leaks or inefficient memory usage.
  Optimize ABAP code to reduce memory consumption.
  
  
  
  System Resources:
  
  Ensure that the server has adequate physical memory and swap space configured.
  Consider upgrading the hardware if the current resources are insufficient for the workload.
  
  
  
  Restart the Application Server:
  
  In some cases, restarting the application server can help clear memory and resolve temporary issues.
  
  
  
  Consult SAP Notes:
  
  Check for relevant SAP Notes that may provide additional guidance or patches related to memory management.
  
  
  
  Related Information:
  
  SAP Memory Management: Understanding how SAP manages memory (including roll memory, heap memory, and extended memory) can help in configuring the system appropriately.
  Transaction Codes:
  
  RZ10: Profile maintenance.
  SM04: User overview.
  SM50: Process overview.
  ST02: Tune summary for memory management.
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on memory parameters and best practices for configuration.
  
  If the problem persists after making adjustments, it may be necessary to engage SAP support for further analysis and assistance.