How To Fix DS497 - Global lock table is full

SAP Error Message - Details

• Message type: E = Error

• Message class: DS - Messages for Editing Text Elements in ABAP Programs

• Message number: 497

• Message text: Global lock table is full

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DS497 - Global lock table is full ?

  The SAP error message DS497, which states "Global lock table is full," typically occurs when the system has reached the maximum limit of locks that can be held in the global lock table. This can happen in environments with high concurrency or when there are long-running transactions that hold locks for extended periods.
  Causes:
  
  High Concurrency: A large number of users or processes trying to access the same resources simultaneously can lead to an overflow of the lock table.
  Long-Running Transactions: Transactions that take a long time to complete can hold locks for extended periods, preventing other transactions from acquiring necessary locks.
  Insufficient Lock Table Size: The configuration of the lock table may not be adequate for the workload, leading to exhaustion of available locks.
  Lock Leaks: Applications or processes that do not release locks properly can lead to a gradual increase in the number of locks held.
  
  Solutions:
  
  
  Increase Lock Table Size:
  
  You can increase the size of the global lock table by adjusting the profile parameters in the SAP system. The relevant parameter is enque/table_size. This can be done in the instance profile or through transaction RZ10.
  After making changes, you will need to restart the SAP instance for the changes to take effect.
  
  
  
  Monitor and Optimize Transactions:
  
  Identify long-running transactions and optimize them to reduce the time they hold locks.
  Use transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs) to monitor lock usage and identify problematic transactions.
  
  
  
  Review Application Logic:
  
  Ensure that the application logic is designed to release locks as soon as they are no longer needed. This may involve reviewing code for proper lock management.
  
  
  
  Regular Maintenance:
  
  Regularly check for and resolve any lock leaks or issues that may cause locks to remain held longer than necessary.
  
  
  
  System Performance Tuning:
  
  Consider tuning the overall performance of the SAP system to handle higher loads more efficiently, which may help reduce the number of locks being held.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for errors and warnings.
  RZ10: To change instance profile parameters.
  
  
  
  SAP Notes: Check SAP Notes related to lock management and performance tuning for specific recommendations and best practices.
  
  
  Documentation: Refer to SAP documentation for detailed information on lock management and configuration settings.
  
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the DS497 error and improve the overall performance of your SAP system.