How To Fix RSODP027 - Shared lock could not be assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: RSODP - Operational Data Provider: Messages

• Message number: 027

• Message text: Shared lock could not be assigned

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSODP027 - Shared lock could not be assigned ?

  The SAP error message RSODP027: Shared lock could not be assigned typically occurs in the context of data extraction processes, particularly when using the SAP BW (Business Warehouse) or SAP Data Services. This error indicates that a shared lock could not be acquired on a particular object, which is often due to contention or conflicts with other processes that are trying to access the same object.
  Causes:
  
  Concurrent Access: Another process or user is holding an exclusive lock on the object, preventing your process from acquiring a shared lock.
  Long-Running Transactions: If a transaction is taking a long time to complete, it may hold locks longer than expected, causing contention.
  Database Locking Mechanism: The underlying database may have its own locking mechanisms that are causing conflicts.
  Configuration Issues: Incorrect configuration of the data extraction process or the underlying data model can lead to locking issues.
  
  Solutions:
  
  
  Identify Locking Processes:
  
  Use transaction codes like SM12 (to view locks) and SM21 (to check system logs) to identify which processes are holding locks on the object.
  You can also use ST22 to check for dumps that might provide additional context.
  
  
  
  Terminate Blocking Processes:
  
  If you identify a process that is holding a lock unnecessarily, you may need to terminate it. Be cautious with this approach, as it may lead to data inconsistencies.
  
  
  
  Optimize Long-Running Transactions:
  
  Review and optimize any long-running transactions that may be causing locks. This could involve improving performance or breaking down large transactions into smaller ones.
  
  
  
  Schedule Jobs Appropriately:
  
  If possible, schedule data extraction jobs during off-peak hours to minimize contention with other processes.
  
  
  
  Check Configuration:
  
  Review the configuration of your data extraction process to ensure that it is set up correctly and efficiently.
  
  
  
  Database Maintenance:
  
  Perform regular database maintenance to ensure that the database is performing optimally and that locks are being managed effectively.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  Documentation: Review SAP documentation on locking mechanisms and data extraction processes for best practices.
  Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with detailed logs and context around the error.
  
  By following these steps, you should be able to diagnose and resolve the RSODP027 error effectively.