How To Fix SWF_CCMS166 - Event trace was switched off

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_CCMS - CCMS: Monitoring

• Message number: 166

• Message text: Event trace was switched off

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 SWF_CCMS166 - Event trace was switched off ?

  The SAP error message SWF_CCMS166 indicates that the event trace for the SAP system has been switched off. This can occur for various reasons, and it is important to address it to ensure that the system's performance and monitoring capabilities are not compromised.
  Cause:
  
  Manual Deactivation: The event trace may have been manually turned off by an administrator or during system maintenance.
  System Configuration: Certain system configurations or settings may lead to the event trace being disabled.
  Performance Issues: If the system is experiencing performance issues, the event trace may be turned off to alleviate load.
  Error in Configuration: There may be an error in the configuration settings that control the event trace.
  
  Solution:
  To resolve the SWF_CCMS166 error and turn the event trace back on, follow these steps:
  
  
  Check Current Status:
  
  Use transaction code SM50 or SM66 to check the status of the event trace.
  You can also check the status in the CCMS (Computing Center Management System) monitoring tools.
  
  
  
  Activate Event Trace:
  
  Use transaction code ST05 (SQL Trace) or ST12 (Performance Trace) to activate the trace.
  Alternatively, you can use transaction RSCONN01 to check and activate the event trace.
  
  
  
  Configuration Settings:
  
  Go to transaction RZ20 to check the monitoring configuration and ensure that the event trace is set to be active.
  Review the settings in transaction RZ11 for parameters related to event tracing (e.g., rdisp/trace).
  
  
  
  Check Logs:
  
  Review the system logs (transaction SM21) for any related errors or warnings that might indicate why the trace was turned off.
  
  
  
  Restart Services:
  
  In some cases, restarting the relevant services or the entire SAP system may help in reactivating the event trace.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to event tracing for specific instructions or troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to the SWF_CCMS166 error.
  Performance Monitoring: Regularly monitor the performance of your SAP system to ensure that the event trace is functioning correctly and to identify any potential issues early.
  System Administration: Ensure that system administrators are aware of the importance of the event trace for monitoring and troubleshooting purposes.
  
  By following these steps, you should be able to resolve the SWF_CCMS166 error and reactivate the event trace in your SAP system.