How To Fix S1301 - SAPOSCOL busy, try again (should not appear twice)

SAP Error Message - Details

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 301

• Message text: SAPOSCOL busy, try again (should not appear twice)

What causes this issue?

The collector SAPOSCOL writes to the shared memory.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Wait until the collector has released the shared memory.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message S1301 - SAPOSCOL busy, try again (should not appear twice) ?

  The SAP error message "S1301 SAPOSCOL busy, try again (should not appear twice)" typically indicates that the SAP Operating System Collector (SAPOSCOL) is currently busy processing a request and cannot handle another one at that moment. This can happen for various reasons, such as high system load, resource contention, or issues with the SAPOSCOL process itself.
  Causes:
  
  High System Load: If the system is under heavy load, SAPOSCOL may take longer to process requests, leading to this error.
  Resource Contention: Other processes may be competing for system resources, causing delays in SAPOSCOL's ability to respond.
  SAPOSCOL Process Issues: The SAPOSCOL process may be experiencing issues or may not be functioning correctly.
  Configuration Issues: Incorrect configuration settings for SAPOSCOL can lead to performance problems.
  Network Issues: If SAPOSCOL is trying to communicate with other components over the network, any network latency or issues can cause delays.
  
  Solutions:
  
  Wait and Retry: Since the error suggests trying again, simply waiting a moment and then retrying the operation may resolve the issue if it was a temporary overload.
  Check SAPOSCOL Status: Use transaction code SM51 to check the status of the SAPOSCOL process. Ensure it is running correctly on all application servers.
  Restart SAPOSCOL: If the process seems to be stuck, you can restart the SAPOSCOL process. This can be done using the following steps:
  
  Go to transaction SM66 to view all active processes.
  Identify the SAPOSCOL process and terminate it if necessary.
  Restart the SAPOSCOL service using the command line or through the SAP system.
  
  
  Monitor System Performance: Use tools like ST03N or ST06 to monitor system performance and identify any bottlenecks or high resource usage.
  Check Logs: Review the system logs (transaction SM21) and the SAPOSCOL logs for any error messages or warnings that could provide more context on the issue.
  Configuration Review: Ensure that the configuration settings for SAPOSCOL are correct and optimized for your system's workload.
  System Resources: Ensure that the server has adequate resources (CPU, memory, etc.) to handle the workload. Consider scaling up resources if necessary.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SAPOSCOL for any known issues or patches that may address the problem.
  Documentation: Review the official SAP documentation for SAPOSCOL to understand its role and configuration better.
  Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it impacts system performance or availability.
  
  By following these steps, you should be able to diagnose and resolve the "S1301 SAPOSCOL busy" error effectively.