How To Fix RT023 - The OS collector (SAPOSCOL) is not running (error code: &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 023

• Message text: The OS collector (SAPOSCOL) is not running (error code: &1)

INCLUDE BC_SAPOSCOL OBJECT DOKU ID TX LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RT023 - The OS collector (SAPOSCOL) is not running (error code: &1) ?

  The SAP error message RT023 indicates that the OS collector (SAPOSCOL) is not running. SAPOSCOL is a background process that collects operating system performance data and makes it available to the SAP system. When this process is not running, it can lead to issues with monitoring and performance analysis.
  Cause
  The error can occur due to several reasons:
  
  SAPOSCOL Not Started: The SAPOSCOL process may not have been started or may have stopped unexpectedly.
  Configuration Issues: There may be configuration issues in the SAP system that prevent SAPOSCOL from starting.
  Operating System Issues: There could be underlying operating system issues, such as insufficient permissions or resource constraints.
  System Shutdown or Restart: The system may have been restarted, and SAPOSCOL has not yet been started automatically.
  
  Solution
  To resolve the RT023 error, you can follow these steps:
  
  
  Check SAPOSCOL Status:
  
  Use transaction code SM50 or SM66 to check if the SAPOSCOL process is running.
  You can also check the operating system level using commands like ps -ef | grep saposcol (on Unix/Linux) to see if the process is active.
  
  
  
  Start SAPOSCOL:
  
  If SAPOSCOL is not running, you can start it manually. Use transaction code SMMS (or RZ10 for some systems) to start the OS collector.
  Alternatively, you can start it from the command line using the following command:
  startsap oscol
  
  
  
  
  Check Logs:
  
  Review the SAPOSCOL logs for any error messages that might indicate why it failed to start. The logs can typically be found in the directory specified in the instance profile (e.g., DIR_EXECUTABLE).
  
  
  
  Check Configuration:
  
  Ensure that the configuration for SAPOSCOL is correct in the instance profile. Look for parameters related to SAPOSCOL in the profile (e.g., rdisp/auto_abap_start).
  
  
  
  Permissions:
  
  Ensure that the user under which the SAP system is running has the necessary permissions to execute SAPOSCOL.
  
  
  
  Restart the System:
  
  If all else fails, consider restarting the SAP system to see if that resolves the issue.
  
  
  
  Related Information
  
  SAP Notes: Check SAP Notes related to SAPOSCOL for any known issues or patches that may be relevant to your version of SAP.
  Documentation: Refer to the official SAP documentation for more details on configuring and troubleshooting SAPOSCOL.
  Monitoring Tools: Consider using SAP Solution Manager or other monitoring tools to keep track of system performance and the status of background processes.
  
  By following these steps, you should be able to resolve the RT023 error and get the OS collector running again.