How To Fix /PF1/MSG_CP861 - At least one of the requested collectors is currently locked

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_CP -

• Message number: 861

• Message text: At least one of the requested collectors is currently locked

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 /PF1/MSG_CP861 - At least one of the requested collectors is currently locked ?

  The SAP error message /PF1/MSG_CP861 indicates that at least one of the requested collectors is currently locked. This typically occurs in the context of performance management or data collection processes within SAP, particularly when using the SAP Solution Manager or similar tools.
  Cause:
  
  
  Locked Collectors: The error usually arises when a data collector (which is responsible for gathering performance metrics or other data) is currently locked due to ongoing processes or maintenance activities. This can happen if:
  
  A data collection job is currently running.
  A previous job did not complete successfully and left the collector in a locked state.
  There are concurrent processes trying to access the same collector.
  
  
  
  System Configuration: Misconfiguration in the system settings or collector settings can also lead to this issue.
  
  
  Solution:
  
  
  Check Running Jobs: 
  
  Go to the transaction code SM37 to check for any running or failed jobs related to the data collectors. If you find any jobs that are still running, you may need to wait for them to complete or terminate them if they are stuck.
  
  
  
  Unlock the Collector:
  
  If you determine that a collector is locked due to a failed job, you may need to manually unlock it. This can often be done through the relevant transaction or by using specific administrative tools provided by SAP.
  
  
  
  Review Logs:
  
  Check the logs for any errors or warnings that might indicate why the collector is locked. This can provide insights into whether there are configuration issues or other underlying problems.
  
  
  
  System Restart:
  
  In some cases, a system restart may be necessary to clear any locks that are not being released properly.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of your SAP system for any known issues or patches that might address this error.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you are unable to resolve it, consider reaching out to SAP support for assistance. They can provide more detailed troubleshooting steps based on your specific system configuration.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), SM21 (System Log), and ST22 (Dump Analysis) for troubleshooting.
  SAP Notes: Search for SAP Notes related to this error message in the SAP Support Portal, as there may be specific fixes or recommendations provided by SAP.
  Performance Management: Understanding how data collectors work within the context of SAP performance management can help in diagnosing and preventing similar issues in the future.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.