How To Fix R9112 - System error when calling lock management

SAP Error Message - Details

• Message type: E = Error

• Message class: R9 - Business Explorer

• Message number: 112

• Message text: System error when calling lock management

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 R9112 - System error when calling lock management ?

  The SAP error message R9112, which indicates a "System error when calling lock management," typically arises due to issues related to the lock management system in SAP. This can occur in various scenarios, such as during database operations, when accessing or modifying data, or when multiple users are trying to access the same data simultaneously.
  Causes:
  
  Database Lock Issues: The error may occur if there are problems with the database locks, such as deadlocks or contention for resources.
  System Configuration: Incorrect configuration of the SAP system or the underlying database can lead to lock management errors.
  Network Issues: Network problems can disrupt communication between the application server and the database server, leading to lock management failures.
  Memory Issues: Insufficient memory or resources on the application server can cause failures in lock management.
  Software Bugs: There may be bugs in the SAP kernel or the database that lead to this error.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) and developer traces (transaction ST22) for more detailed error messages that can provide insights into the root cause.
  Restart the Application Server: Sometimes, simply restarting the application server can resolve temporary issues related to lock management.
  Database Lock Table: Check the database lock table (transaction SM12) for any locks that may be causing contention. You can release unnecessary locks if they are no longer needed.
  System Configuration Review: Ensure that the SAP system and database configurations are correct and optimized for performance.
  Update SAP Kernel: If the issue is due to a bug, consider updating the SAP kernel to the latest version, as this may resolve known issues.
  Check Network Connectivity: Ensure that there are no network issues affecting communication between the application server and the database server.
  Increase Resources: If memory or resource constraints are suspected, consider increasing the resources allocated to the application server.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to error R9112 for any specific patches or recommendations provided by SAP.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and SM12 (Lock Entries) for troubleshooting.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.