How To Fix RSDU_REPART486 - Read lock set for DataStore object &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDU_REPART - Messages for Repartitioning InfoProviders

• Message number: 486

• Message text: Read lock set for DataStore object &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDU_REPART486 - Read lock set for DataStore object &1 ?

  The SAP error message RSDU_REPART486 indicates that a read lock has been set for a DataStore Object (DSO) in SAP BW (Business Warehouse). This typically occurs when a process is trying to access or modify a DSO that is currently being used by another process, leading to a conflict.
  Cause:
  
  Concurrent Access: The most common cause of this error is that another process (like a data load, transformation, or query) is currently accessing the DSO, which prevents your process from obtaining the necessary lock.
  Long-running Processes: If a data load or transformation is taking longer than expected, it can hold the lock for an extended period.
  System Performance Issues: High system load or performance issues can lead to delays in releasing locks.
  
  Solution:
  
  
  Identify the Locking Process:
  
  Use transaction SM12 to check for existing locks on the DSO. You can filter by the object name or user to find the locking process.
  If you identify a process that is holding the lock unnecessarily, you may need to terminate it (if appropriate) or wait for it to complete.
  
  
  
  Wait for Completion:
  
  If the locking process is legitimate and necessary, you may need to wait for it to finish. Monitor the process to see when it completes.
  
  
  
  Optimize Data Loads:
  
  Review and optimize your data load processes to ensure they run efficiently and do not hold locks longer than necessary.
  Consider scheduling data loads during off-peak hours to minimize conflicts.
  
  
  
  Check for Long-running Queries:
  
  If a query is causing the lock, check if it can be optimized or if it can be run at a different time.
  
  
  
  System Performance:
  
  Investigate any underlying system performance issues that may be causing delays in lock release.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  ST22: To check for dumps that might indicate underlying issues.
  
  
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address known issues.
  
  
  Documentation: Review SAP BW documentation for best practices on managing DataStore Objects and handling locks.
  
  
  By following these steps, you should be able to resolve the RSDU_REPART486 error and prevent it from occurring in the future.