How To Fix TL091 - Lock release for restart

SAP Error Message - Details

• Message type: E = Error

• Message class: TL - Messages for language transports

• Message number: 091

• Message text: Lock release for restart

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 TL091 - Lock release for restart ?

  The SAP error message TL091, which states "Lock release for restart," typically occurs in the context of a transaction that has been interrupted or terminated unexpectedly, leading to a situation where locks held by that transaction need to be released. This can happen due to various reasons, such as system crashes, user-initiated terminations, or other unforeseen interruptions.
  Causes:
  
  Transaction Interruption: The most common cause is that a transaction was interrupted, either by a user or due to a system failure.
  Deadlocks: If there are deadlocks in the system, the locks may not be released properly.
  System Crashes: A sudden crash of the SAP system or database can lead to locks not being released.
  Long-running Transactions: Transactions that take too long to complete may lead to timeouts and subsequent lock issues.
  Network Issues: Connectivity problems can also lead to transactions being terminated unexpectedly.
  
  Solutions:
  
  Manual Lock Release: You can manually release the locks using transaction code SM12. This allows you to view and delete any locks that are no longer needed.
  Check for Long-running Transactions: Use transaction SM66 to monitor active processes and identify any long-running transactions that may be causing issues.
  System Restart: In some cases, a system restart may be necessary to clear any residual locks.
  Review System Logs: Check the system logs (transaction SM21) for any errors or warnings that may provide more context on the issue.
  Database Consistency Check: Ensure that the database is consistent and that there are no underlying issues that could be causing the locks to persist.
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for errors.
  SM66: To monitor active processes.
  
  
  SAP Notes: Always check for the latest SAP Notes related to lock management and error TL091 for any specific patches or updates.
  Performance Tuning: Consider reviewing the performance of your SAP system to prevent long-running transactions and potential lock issues in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.