How To Fix DB6PM779 - DBCFG - APPLHEAPSZ - SAP recommendation: at least 15000

SAP Error Message - Details

• Message type: E = Error

• Message class: DB6PM - DB2 UDB for UNIX, Windows: Performance Monitoring

• Message number: 779

• Message text: DBCFG - APPLHEAPSZ - SAP recommendation: at least 15000

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 DB6PM779 - DBCFG - APPLHEAPSZ - SAP recommendation: at least 15000 ?

  The SAP error message DB6PM779 indicates that the application heap size (APPLHEAPSZ) is set below the recommended minimum value of 15000. This parameter is crucial for the performance and stability of the SAP system, as it defines the amount of memory allocated for the application server's heap.
  Cause:
  The error typically arises when the configuration of the SAP system does not meet the minimum memory requirements for optimal performance. This can happen due to:
  
  Insufficient Memory Allocation: The current setting for the APPLHEAPSZ parameter is lower than the recommended threshold.
  System Configuration Changes: Changes in the system landscape or workload may require adjustments to memory settings.
  Default Settings: The system may be running with default settings that are not suitable for the current workload.
  
  Solution:
  To resolve this error, you need to increase the value of the APPLHEAPSZ parameter. Here are the steps to do this:
  
  Access the SAP System: Log in to the SAP system where the error is occurring.
  Transaction Code RZ10: Use transaction code RZ10 to modify the profile parameters.
  Select the Profile: Choose the appropriate instance profile (usually the one for the application server).
  Edit Parameters: Look for the parameter APPLHEAPSZ. If it is set below 15000, increase it to at least 15000 or higher based on your system's requirements.
  Save Changes: Save the changes to the profile.
  Restart the Instance: Restart the SAP instance for the changes to take effect.
  
  Related Information:
  
  Monitoring Memory Usage: After making changes, monitor the memory usage of the SAP system to ensure that it is operating efficiently.
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or recommendations regarding memory settings.
  Performance Tuning: Consider reviewing other memory-related parameters and overall system performance to ensure that the SAP system is optimized for your specific workload.
  Documentation: Refer to the SAP Basis documentation for detailed information on memory management and configuration best practices.
  
  By following these steps, you should be able to resolve the DB6PM779 error and ensure that your SAP system is configured with adequate memory resources.