How To Fix DB6517 - The DFT_MON_LOCK switch is not set

SAP Error Message - Details

• Message type: E = Error

• Message class: DB6 - DB6: Alert Monitoring and Alert Configuration

• Message number: 517

• Message text: The DFT_MON_LOCK switch is not set

Copy of DB6 515

What causes this issue?

To allow meaningful monitoring of the database, you must activate this
switch.

System Response

If this switch is not set, it can lead to problems ranging from
restricting the function of the CCMS transactions to erroneous
terminations.

How to fix this error?

Activate the switch by setting the appropriate database manager
parameters using the following command:
<LB>UPDATE DBM CFG USING DFT_MON_LOCK ON </>
The setting will become active at the next connection to the database.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB6517 - The DFT_MON_LOCK switch is not set ?

  The SAP error message DB6517, which states "The DFT_MON_LOCK switch is not set," typically relates to database monitoring and locking mechanisms within the SAP system. This error can occur in various scenarios, particularly when there are issues with database performance monitoring or when certain database features are not enabled.
  Cause:
  The error indicates that the DFT_MON_LOCK switch, which is a configuration parameter in the database, is not enabled. This switch is often related to monitoring and locking behavior in the database. If it is not set, the system may not be able to perform certain operations that require monitoring of locks, leading to this error message.
  Solution:
  To resolve the DB6517 error, you can take the following steps:
  
  
  Check Database Configuration:
  
  Access the database configuration settings and verify if the DFT_MON_LOCK switch is available.
  If it is not set, you may need to enable it. This usually requires administrative access to the database.
  
  
  
  Enable the DFT_MON_LOCK Switch:
  
  Depending on the database you are using (e.g., Oracle, SQL Server, HANA), the method to enable this switch may vary. Consult the database documentation for the specific commands or settings required to enable the DFT_MON_LOCK switch.
  For example, in some databases, you might need to execute a command or modify a configuration file.
  
  
  
  Restart the Database:
  
  After making changes to the configuration, it may be necessary to restart the database for the changes to take effect.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or documentation that may provide additional guidance or specific instructions related to your version of SAP and the database you are using.
  
  
  
  Contact Support:
  
  If you are unable to resolve the issue on your own, consider reaching out to SAP support or your database administrator for assistance.
  
  
  
  Related Information:
  
  Database Documentation: Refer to the official documentation for your specific database system to understand the implications of enabling the DFT_MON_LOCK switch and any potential performance impacts.
  SAP Notes: Search for SAP Notes related to DB6517 or database monitoring issues in the SAP Support Portal.
  Monitoring Tools: Consider using SAP's monitoring tools (like SAP Solution Manager) to gain insights into database performance and locking issues.
  
  By following these steps, you should be able to address the DB6517 error and ensure that the DFT_MON_LOCK switch is properly configured for your SAP system.