How To Fix DB6552 - The LOCKTIMEOUT parameter value is out of recommended range

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 552

• Message text: The LOCKTIMEOUT parameter value is out of recommended range

First and second paragraphs copied from DB6 550

What causes this issue?

To ensure that applications do not have to wait too long for locks, you
can set a maximum time using the database configuration parameter
LOCKTIMEOUT. Once this time has passed, the application is reset.

System Response

If the value of this parameter is too low, the system may unnecessarily
reset applications. Several applications may synchronize using locks.
You should use this value to ensure that applications do not hold locks
too long blocking other applications.

How to fix this error?

Reduce the parameter using:
<LB>UPDATE DB CFG USING LOCKTIMEOUT <Value></>

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB6552 - The LOCKTIMEOUT parameter value is out of recommended range ?

  The SAP error message DB6552 indicates that the value set for the LOCKTIMEOUT parameter is outside the recommended range. This parameter is related to database locking behavior, and its configuration can significantly impact the performance and stability of your SAP system.
  Cause:
  The LOCKTIMEOUT parameter specifies the maximum time (in seconds) that a transaction will wait for a lock to be released before it times out. If the value is set too low, transactions may fail too quickly, leading to increased errors and potential data integrity issues. Conversely, if it is set too high, it may lead to long wait times for transactions, which can degrade system performance.
  Recommended Range:
  The recommended range for the LOCKTIMEOUT parameter can vary depending on the specific database system you are using (e.g., SAP HANA, Oracle, SQL Server, etc.). Generally, it is advisable to set this parameter to a value that balances performance and reliability, often between 5 to 60 seconds, but you should refer to the specific documentation for your database.
  Solution:
  
  
  Check Current Setting: First, check the current value of the LOCKTIMEOUT parameter in your database configuration.
  
  
  Adjust the Value: If the value is outside the recommended range, adjust it to a more appropriate value. This can typically be done through the database management interface or configuration files, depending on your database system.
  
  
  Test Changes: After making changes, monitor the system for any performance issues or errors related to locking. It may be necessary to adjust the value further based on observed behavior.
  
  
  Consult Documentation: Always refer to the official SAP documentation or your specific database documentation for the best practices regarding the LOCKTIMEOUT parameter.
  
  
  Database Support: If you are unsure about the appropriate value or if issues persist, consider reaching out to your database administrator or SAP support for further assistance.
  
  
  Related Information:
  
  Database Documentation: Check the documentation for your specific database system for detailed information on the LOCKTIMEOUT parameter and its implications.
  SAP Notes: Look for relevant SAP Notes that may provide additional guidance or updates related to this error message.
  Performance Monitoring: Use SAP transaction codes (like ST22 for dumps, SM21 for system logs) to monitor for any related issues that may arise after changing the LOCKTIMEOUT setting.
  
  By following these steps, you should be able to resolve the DB6552 error and optimize the locking behavior of your SAP system.