How To Fix D4130 - The database monitor is already running

SAP Error Message - Details

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 130

• Message text: The database monitor is already running

What causes this issue?

There was a call to start the memory based SQL database monitor, but
the monitor was already running.

System Response

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How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message D4130 - The database monitor is already running ?

  The SAP error message D4130, which states "The database monitor is already running," typically occurs when there is an attempt to start the database monitor while it is already active. This can happen in various scenarios, such as when trying to start the database monitor manually or through a scheduled job.
  Cause:
  
  Duplicate Start Command: The most common cause is that the database monitor is already running, and a second attempt to start it is made.
  System Configuration: There may be a configuration issue where the system is not correctly recognizing the state of the database monitor.
  Background Jobs: A background job or process may have initiated the database monitor without the user's knowledge.
  
  Solution:
  
  Check the Status: Before attempting to start the database monitor, check if it is already running. You can do this by using transaction codes like DB02 or DBACOCKPIT to monitor the database status.
  Stop the Monitor: If you need to restart the database monitor, first stop it using the appropriate command or transaction. Ensure that no other processes are using it before stopping.
  Review Logs: Check the system logs (transaction SM21) for any related messages that might provide more context on why the monitor is perceived to be running.
  Restart the System: If the issue persists and you cannot determine the cause, consider restarting the SAP system. This can help clear any stuck processes.
  Consult Documentation: Refer to SAP Notes or documentation for any specific instructions related to your version of SAP and the database being used.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as DB02 (Database Performance Monitor) and DBACOCKPIT (Database Administration Cockpit).
  SAP Notes: Search for SAP Notes related to the error message D4130 for any patches or updates that may address the issue.
  Database Specifics: Depending on the database (e.g., Oracle, HANA, SQL Server), there may be specific considerations or commands to manage the database monitor.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.