How To Fix ARUN_MAIN068 - All servers are busy; please check your RFC group administration

SAP Error Message - Details

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 068

• Message text: All servers are busy; please check your RFC group administration

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 ARUN_MAIN068 - All servers are busy; please check your RFC group administration ?

  The SAP error message ARUN_MAIN068 indicates that all servers in the specified RFC (Remote Function Call) group are busy, which means that the system is unable to process the request at that moment. This can happen for several reasons, and understanding the cause is essential for finding a solution.
  Causes:
  
  High Load on Application Servers: The application servers may be experiencing high load due to a large number of concurrent users or resource-intensive processes.
  Configuration Issues: The RFC group may not be configured correctly, or the servers in the group may not be available for processing requests.
  Network Issues: There could be network connectivity problems between the application server and the database or other systems.
  Long Running Processes: There may be long-running processes that are occupying the server resources, preventing new requests from being processed.
  Server Downtime: One or more servers in the RFC group may be down or not responding.
  
  Solutions:
  
  Check Server Load: Monitor the load on the application servers using transaction codes like SM50 or SM66 to see if they are overloaded. If so, consider redistributing the load or optimizing the processes.
  Review RFC Group Configuration: Use transaction SM59 to check the configuration of the RFC destination and ensure that the servers in the group are correctly defined and active.
  Increase Server Resources: If the servers are consistently busy, consider increasing the resources (CPU, memory) allocated to the application servers.
  Optimize Long Running Processes: Identify and optimize any long-running processes that may be consuming server resources. You can use transaction SM37 to monitor job statuses.
  Check for Server Availability: Ensure that all servers in the RFC group are up and running. You can check this in transaction SMLG (for load balancing) or SM51 (to see active instances).
  Network Troubleshooting: If there are network issues, work with your network team to diagnose and resolve any connectivity problems.
  Restart Services: If necessary, restarting the affected application servers or services may help clear up any temporary issues.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM50: Monitor work processes on a specific application server.
  SM66: Monitor work processes across all application servers.
  SM59: Manage RFC destinations.
  SM37: Monitor background jobs.
  SMLG: Manage load balancing groups.
  SM51: Display active application servers.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for relevant notes.
  
  
  Performance Tuning: Consider performance tuning for your SAP system, which may involve adjusting parameters, optimizing database queries, or reviewing custom code.
  
  
  By following these steps, you should be able to diagnose and resolve the issue causing the ARUN_MAIN068 error message.