How To Fix XMS_MONI021 - Service ID '&1' for index ID '&2' is already active

SAP Error Message - Details

• Message type: E = Error

• Message class: XMS_MONI - Messages for Monitoring

• Message number: 021

• Message text: Service ID '&1' for index ID '&2' is already active

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message XMS_MONI021 - Service ID '&1' for index ID '&2' is already active ?

  The SAP error message XMS_MONI021 indicates that a service ID (identified by &1) for a specific index ID (identified by &2) is already active. This typically occurs in the context of SAP's indexing and monitoring services, particularly when dealing with the SAP HANA database or other indexing services.
  Cause:
  The error usually arises when there is an attempt to activate or start a service or index that is already in an active state. This can happen due to:
  
  A previous activation process that has not completed or has not been properly terminated.
  A misconfiguration in the system that leads to multiple attempts to activate the same service.
  A race condition where multiple processes are trying to activate the same service simultaneously.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Status: Verify the current status of the service or index using the relevant transaction codes or monitoring tools in SAP. This will help you confirm whether the service is indeed active.
  
  
  Deactivate the Service: If the service is active but should not be, you may need to deactivate it. This can often be done through the SAP GUI or relevant transaction codes (e.g., SM37 for job monitoring).
  
  
  Wait for Completion: If there is an ongoing process that is activating the service, wait for it to complete. You can monitor the process to see if it finishes successfully.
  
  
  Restart the System: In some cases, a system restart may help clear any locks or processes that are causing the service to remain active.
  
  
  Check Logs: Review the system logs (e.g., using transaction SLG1) for any additional error messages or warnings that may provide more context about why the service is still active.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific service or index you are working with for any known issues or additional troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists and you cannot determine the cause, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant logs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), SLG1 (Application Log), and ST22 (Dump Analysis) for troubleshooting.
  SAP Notes: Search for SAP Notes related to the specific error message or service you are dealing with, as they may contain patches or workarounds.
  System Configuration: Review the configuration settings for the indexing service to ensure they are set up correctly and do not conflict with other services.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the XMS_MONI021 error message.