How To Fix DB6553 - The LOCKTIMEOUT parameter is not set

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 553

• Message text: The LOCKTIMEOUT parameter is not set

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?

Set 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 DB6553 - The LOCKTIMEOUT parameter is not set ?

  The SAP error message DB6553 indicates that the LOCKTIMEOUT parameter is not set in the database configuration. This parameter is crucial for managing how long a transaction will wait for a lock to be released before timing out. If this parameter is not configured, it can lead to issues with transaction management, especially in environments with high concurrency.
  Cause:
  The error typically arises in scenarios where:
  
  The database is unable to acquire a lock on a resource because another transaction holds it.
  The LOCKTIMEOUT parameter is not defined, which means the system does not know how long to wait before giving up on acquiring the lock.
  
  Solution:
  To resolve this issue, you need to set the LOCKTIMEOUT parameter in your database configuration. The steps to do this can vary depending on the database system you are using (e.g., SAP HANA, Oracle, SQL Server, etc.). Here’s a general approach:
  
  
  Identify the Database: Determine which database you are using with your SAP system.
  
  
  Set the LOCKTIMEOUT Parameter:
  
  For SAP HANA:
  
  You can set the LOCKTIMEOUT parameter in the global.ini file or through SQL commands.
  Example SQL command:
  SET GLOBAL lock_timeout = '10s';  -- Set to 10 seconds, adjust as needed
  
  
  
  For Oracle:
  
  You can set the LOCKTIMEOUT parameter using the following SQL command:
  ALTER SESSION SET LOCK_TIMEOUT = 10;  -- Set to 10 seconds, adjust as needed
  
  
  
  For SQL Server:
  
  You can set the LOCK_TIMEOUT using the following command:
  SET LOCK_TIMEOUT 10000;  -- Set to 10 seconds, adjust as needed
  
  
  
  
  
  
  Restart the Database: After making changes to the configuration, you may need to restart the database for the changes to take effect.
  
  
  Monitor and Test: After setting the parameter, monitor the system for any further lock-related issues and test to ensure that the error does not reoccur.
  
  
  Related Information:
  
  Documentation: Refer to the official documentation for your specific database system for detailed instructions on setting parameters.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error.
  Performance Considerations: Setting the LOCKTIMEOUT too low may lead to frequent timeouts, while setting it too high may cause long waits for transactions. It’s essential to find a balance based on your system's workload.
  
  By configuring the LOCKTIMEOUT parameter appropriately, you can help ensure smoother transaction processing and reduce the likelihood of encountering this error in the future.