5G833 - Local lock table too small

SAP Error Message - Details

• Message type: E = Error

• Message class: 5G - HR: Messages for Britain

• Message number: 833

• Message text: Local lock table too small

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5G833 - Local lock table too small ?

  The SAP error message 5G833: Local lock table too small indicates that the local lock table in the SAP system has reached its maximum capacity. This can lead to issues with data consistency and can prevent users from performing certain operations that require locks on database records.
  Cause:
  The error typically occurs when:
  
  There are too many concurrent transactions trying to acquire locks.
  The configuration of the local lock table is insufficient for the workload of the system.
  The application is experiencing a high volume of lock requests, which can happen during peak usage times or due to inefficient coding practices.
  
  Solution:
  To resolve the issue, you can take the following steps:
  
  
  Increase the Local Lock Table Size:
  
  You can increase the size of the local lock table by adjusting the parameter enque/table_size in the SAP system profile. This parameter controls the size of the lock table.
  To change this parameter:
  
  Go to transaction RZ10 (Profile Maintenance).
  Select the appropriate instance profile.
  Add or modify the parameter enque/table_size to a larger value.
  Save the changes and restart the SAP instance for the changes to take effect.
  
  
  
  
  
  Monitor Lock Usage:
  
  Use transaction SM12 to monitor the lock entries and identify any long-running transactions that may be holding locks longer than necessary.
  Investigate and optimize any processes that are causing excessive locking.
  
  
  
  Review Application Logic:
  
  Analyze the application code to ensure that locks are being acquired and released appropriately. Look for any potential deadlocks or long-running transactions that could be optimized.
  
  
  
  Check for System Bottlenecks:
  
  Ensure that the system resources (CPU, memory, I/O) are not being overutilized, which can lead to performance issues and increased lock contention.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  RZ10: To maintain instance profiles and parameters.
  SM21: To check system logs for any related errors or warnings.
  
  
  
  SAP Documentation:
  
  Refer to the SAP Help Portal for detailed documentation on lock management and performance tuning.
  
  
  
  Performance Tuning:
  
  Regularly monitor and tune the performance of your SAP system to prevent similar issues in the future.
  
  
  
  By following these steps, you should be able to resolve the error and improve the locking mechanism in your SAP system.