How To Fix OO_SOURCE_BASED050 - A system error occurred during getting an enqueue lock

SAP Error Message - Details

• Message type: E = Error

• Message class: OO_SOURCE_BASED - WB - Class Builder - Messages for the source-b. Class Editor

• Message number: 050

• Message text: A system error occurred during getting an enqueue 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 OO_SOURCE_BASED050 - A system error occurred during getting an enqueue lock ?

  The SAP error message "OO_SOURCE_BASED050 A system error occurred during getting an enqueue lock" typically indicates an issue related to the enqueue mechanism in the SAP system. This mechanism is responsible for managing locks on objects to ensure data consistency and integrity during concurrent access.
  Causes:
  
  Lock Table Overflow: The enqueue lock table may be full, preventing new locks from being acquired.
  Database Issues: There may be underlying database issues that are affecting the ability to acquire locks.
  System Resource Limitations: Insufficient system resources (like memory or CPU) can lead to issues with acquiring locks.
  Configuration Issues: Incorrect configuration settings in the SAP system or the database can lead to enqueue problems.
  Deadlocks: A deadlock situation may occur where two or more processes are waiting for each other to release locks.
  
  Solutions:
  
  
  Check Lock Table Size: 
  
  Use transaction code SM12 to check the current locks and see if the lock table is full. If it is, consider increasing the size of the lock table in the system profile parameters.
  Parameters to check include enque/table_size and enque/table_size_max.
  
  
  
  Monitor System Resources: 
  
  Use transaction codes like ST02 (buffer management) and ST04 (database performance) to monitor system performance and resource usage.
  Ensure that the system has adequate memory and CPU resources.
  
  
  
  Review Configuration: 
  
  Check the configuration settings for the enqueue server and ensure they are set correctly.
  Review the SAP kernel version and consider upgrading if it is outdated, as newer versions may have bug fixes related to enqueue issues.
  
  
  
  Analyze and Resolve Deadlocks: 
  
  Use transaction code SM21 to check the system log for any deadlock messages.
  Analyze the processes involved in the deadlock and adjust the application logic or locking strategy to prevent future occurrences.
  
  
  
  Restart Enqueue Server: 
  
  If the issue persists, consider restarting the enqueue server. This can sometimes resolve transient issues.
  
  
  
  Check for SAP Notes: 
  
  Search the SAP Support Portal for any relevant SAP Notes that may address this specific error message or related issues.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM12: Display and manage locks.
  SM21: System log.
  ST02: Tune buffer.
  ST04: Database performance analysis.
  
  
  
  SAP Notes: Always check for the latest SAP Notes related to enqueue issues, as they may provide specific patches or recommendations.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further investigation.