How To Fix SA322 - Local lock table full

SAP Error Message - Details

• Message type: E = Error

• Message class: SA -

• Message number: 322

• Message text: Local lock table 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 SA322 - Local lock table full ?

  The SAP error message SA322 "Local lock table full" indicates that the local lock table in the SAP system has reached its maximum capacity. This can occur when there are too many locks being held by transactions, which can prevent new locks from being created and lead to performance issues or transaction failures.
  Causes:
  
  High Concurrency: A large number of users or processes trying to access the same data simultaneously can lead to an overflow of locks.
  Long-Running Transactions: Transactions that hold locks for an extended period can contribute to filling up the lock table.
  Inefficient Lock Management: Poorly designed programs or processes that do not release locks properly can lead to lock table saturation.
  Configuration Issues: The default size of the lock table may be insufficient for the workload of the system.
  
  Solutions:
  
  
  Increase Lock Table Size:
  
  You can increase the size of the 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.
  
  
  
  Optimize Transactions:
  
  Review and optimize long-running transactions to ensure they release locks as soon as they are no longer needed.
  Implement better error handling and transaction management in custom programs to avoid holding locks unnecessarily.
  
  
  
  Monitor Lock Usage:
  
  Use transaction SM12 to monitor and analyze the locks currently held in the system. This can help identify problematic transactions or users.
  Regularly check for and clear unnecessary locks that are no longer needed.
  
  
  
  Review Application Design:
  
  If custom development is involved, ensure that the application logic is designed to minimize lock contention. This may involve redesigning how data is accessed and modified.
  
  
  
  System Performance Tuning:
  
  Analyze the overall performance of the SAP system and consider tuning other parameters that may affect lock management and concurrency.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  RZ10: To change instance profile parameters.
  ST22: To check for dumps that may provide additional context on issues related to locks.
  
  
  
  SAP Notes: Check SAP Notes related to lock management and performance tuning for specific recommendations and best practices.
  
  
  Documentation: Refer to the SAP Help Portal 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 SA322 error and improve the overall performance of your SAP system.