How To Fix RSPLS091 - Overloading of lock server for InfoProvider &1 (-> see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSPLS - General Messages

• Message number: 091

• Message text: Overloading of lock server for InfoProvider &1 (-> see long text)

What causes this issue?

When transaction data is requested in change mode, this data has to be
locked exclusively for one user. The lock server is currently processing
other lock requests for InfoProvider '&V1&' and therefore cannot answer
this lock request at the moment.
The system waits a certain number of seconds and then requests the lock
again. It is possible that the lock server may still not be able to deal
with the request even after the waiting time.

System Response

The requested data cannot be edited in change mode at the moment.

How to fix this error?

If you get this lock message regularly, it generally indicates that the
lock server is overloaded.
You can normally only avoid this by simplifying your selections. See the
documentation on this.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSPLS091 - Overloading of lock server for InfoProvider &1 (-> see long text) ?

  The SAP error message RSPLS091 indicates that there is an overloading of the lock server for a specific InfoProvider. This typically occurs in the context of SAP BW (Business Warehouse) when there are too many requests or processes trying to access the same InfoProvider simultaneously, leading to contention for locks.
  Cause:
  
  High Concurrency: Multiple users or processes are trying to access or modify the same InfoProvider at the same time, leading to a bottleneck.
  Long-Running Queries: Queries that take a long time to execute can hold locks for extended periods, preventing other processes from accessing the InfoProvider.
  Lock Table Size: The lock table may be reaching its limit, causing new requests to be unable to acquire locks.
  Inefficient Query Design: Poorly designed queries that require excessive resources can exacerbate the issue.
  
  Solution:
  
  Analyze Lock Usage: Use transaction codes like SM12 to check for existing locks and identify long-running processes that may be holding locks.
  Optimize Queries: Review and optimize the queries that are being executed against the InfoProvider. This may involve simplifying the query, reducing the amount of data being processed, or indexing relevant fields.
  Increase Lock Table Size: If the lock table is frequently reaching its limit, consider increasing its size. This can be done by adjusting the parameters in the SAP system configuration.
  Schedule Jobs Appropriately: If possible, schedule heavy data loads or queries during off-peak hours to reduce contention.
  Monitor System Performance: Regularly monitor system performance and lock statistics to identify trends and potential issues before they become critical.
  Use Aggregates: If applicable, use aggregates to reduce the load on the InfoProvider by pre-calculating and storing summary data.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  ST22: To check for dumps that may provide additional context.
  SM37: To monitor background jobs and their statuses.
  
  
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to this error.
  Performance Tuning: Consider engaging with SAP Basis or BW consultants for performance tuning and best practices specific to your environment.
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the RSPLS091 error and improve the overall performance of your SAP BW system.