How To Fix SOI1412 - No more tables to lock

SAP Error Message - Details

• Message type: E = Error

• Message class: SOI1 - Safe Online Import/Upgrade Messages continued

• Message number: 412

• Message text: No more tables to lock

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 SOI1412 - No more tables to lock ?

  The SAP error message SOI1412 "No more tables to lock" typically occurs when the system has reached the limit of the number of database locks that can be held at one time. This can happen in various scenarios, such as when a large number of transactions are being processed simultaneously, or when there are long-running transactions that hold locks for an extended period.
  Causes:
  
  Excessive Lock Requests: Too many concurrent transactions trying to lock tables.
  Long-Running Transactions: Transactions that hold locks for a long time, preventing others from acquiring necessary locks.
  Configuration Limits: The system's configuration may limit the number of locks that can be held.
  Lock Table Size: The lock table in the database may be full, preventing new locks from being acquired.
  
  Solutions:
  
  
  Analyze Lock Usage:
  
  Use transaction codes like SM12 (Display and Manage Locks) to check for existing locks and identify long-running transactions.
  Identify and terminate any unnecessary or long-running transactions that are holding locks.
  
  
  
  Increase Lock Table Size:
  
  If the lock table is full, consider increasing its size. This can be done by adjusting the database parameters related to lock management.
  Consult your database administrator for guidance on how to increase the lock table size.
  
  
  
  Optimize Transactions:
  
  Review and optimize the code of transactions that are holding locks for a long time. Ensure that locks are released as soon as they are no longer needed.
  Implement best practices for transaction management to minimize lock contention.
  
  
  
  Monitor System Performance:
  
  Regularly monitor system performance and lock statistics to identify patterns that lead to lock contention.
  Use tools like SAP Solution Manager to monitor and analyze system performance.
  
  
  
  Adjust Configuration Parameters:
  
  Review and adjust relevant SAP parameters related to locking, such as enque/table_size and enque/table_hash_size, to better accommodate your system's workload.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this issue or provide additional guidance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log for monitoring system messages.
  ST22: Dump analysis for checking for any short dumps related to locking issues.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on lock management and performance tuning.
  
  
  SAP Community: Engage with the SAP Community forums for insights and solutions shared by other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to resolve the SOI1412 error and improve the locking behavior in your SAP system.