How To Fix BGRFC654 - Number of running inbound schedulers

SAP Error Message - Details

• Message type: E = Error

• Message class: BGRFC - qRFC - New Background RFC

• Message number: 654

• Message text: Number of running inbound schedulers

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BGRFC654 - Number of running inbound schedulers ?

  The SAP error message BGRFC654 indicates that the number of running inbound schedulers has exceeded the configured limit. This can occur in systems using the Background Remote Function Call (BGRFC) framework, which is used for asynchronous communication between SAP systems or between different components of the same system.
  Cause:
  
  High Load: A sudden increase in the volume of inbound requests can lead to more schedulers being activated than the system can handle.
  Configuration Limits: The system may be configured with a low limit for the number of inbound schedulers, which can be insufficient for the current workload.
  Long-Running Processes: If there are long-running inbound processes, they may occupy the schedulers, preventing new requests from being processed.
  System Performance Issues: General performance issues in the SAP system can lead to delays in processing, causing the number of active schedulers to increase.
  
  Solution:
  
  
  Increase the Limit: You can increase the limit for the number of inbound schedulers. This can be done in the SAP system configuration:
  
  Use transaction code RZ10 to change the profile parameters.
  Look for the parameter bgRFC_INBOUND_SCHEDULERS and increase its value.
  After making changes, restart the instance for the changes to take effect.
  
  
  
  Monitor and Optimize: 
  
  Monitor the performance of the inbound processes to identify any long-running or stuck processes.
  Optimize the processing logic if necessary to reduce the time taken by each inbound request.
  
  
  
  Check System Resources: Ensure that the system has adequate resources (CPU, memory, etc.) to handle the load. If the system is under heavy load, consider scaling up resources.
  
  
  Review Background Jobs: Check for any background jobs that may be consuming resources and adjust their scheduling if necessary.
  
  
  Error Handling: Implement error handling in your BGRFC calls to ensure that failures are managed properly and do not lead to resource exhaustion.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM58 - To monitor and manage asynchronous RFC calls.
  SM21 - To check system logs for any related errors or warnings.
  RZ20 - To monitor system performance and resource usage.
  
  
  
  Documentation: Refer to SAP Help documentation for BGRFC for detailed information on configuration and best practices.
  
  
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or patches related to BGRFC issues.
  
  
  By addressing the causes and implementing the solutions mentioned above, you should be able to resolve the BGRFC654 error and improve the performance of your SAP system.