How To Fix RSRPREC721 - Precalculation server & 1 with &2 free instances selected

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRPREC - Messages for EXCEL Workbook Precalculation

• Message number: 721

• Message text: Precalculation server & 1 with &2 free instances selected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRPREC721 - Precalculation server & 1 with &2 free instances selected ?

  The SAP error message RSRPREC721 typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the precalculation server. This error indicates that the precalculation server is unable to find enough free instances to execute a precalculation request. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  
  Insufficient Free Instances: The error suggests that the precalculation server has only a limited number of free instances available to handle the precalculation requests. This can happen if:
  
  All available instances are currently busy processing other requests.
  The configuration of the precalculation server limits the number of instances.
  There are issues with the server itself, such as performance bottlenecks or resource constraints.
  
  
  
  Configuration Issues: The settings for the precalculation server may not be optimized, leading to fewer instances being available than expected.
  
  
  System Load: High system load or resource contention can lead to instances being occupied longer than usual, causing delays in processing new requests.
  
  
  Solutions:
  
  
  Check Server Status: 
  
  Monitor the status of the precalculation server to see how many instances are currently in use and how many are free.
  Use transaction codes like RSRT or RSPC to check the status of the precalculation jobs.
  
  
  
  Increase Instance Count:
  
  If possible, increase the number of instances available for the precalculation server in the configuration settings. This can be done in the BW Administrator Workbench or through the relevant configuration transactions.
  
  
  
  Optimize Queries:
  
  Review the queries being precalculated to ensure they are optimized and not consuming excessive resources. This can help free up instances more quickly.
  
  
  
  Schedule Jobs During Off-Peak Hours:
  
  If the system is under heavy load during certain times, consider scheduling precalculation jobs during off-peak hours to ensure that there are enough resources available.
  
  
  
  Check for Long-Running Jobs:
  
  Identify and analyze any long-running precalculation jobs that may be holding up instances. If necessary, terminate or optimize these jobs.
  
  
  
  System Resources:
  
  Ensure that the underlying hardware and system resources (CPU, memory, etc.) are sufficient to handle the load. Upgrading hardware or optimizing system performance may be necessary.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSRPREC721 for any specific patches or updates that may address known issues.
  Documentation: Review SAP BW documentation for best practices on configuring and managing precalculation servers.
  Monitoring Tools: Utilize SAP monitoring tools to keep track of system performance and precalculation server status.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the RSRPREC721 error and improve the performance of your precalculation server in SAP BW.