How To Fix DB6PM291 - Aggregate registry variable &1 has been overwritten on partition &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DB6PM - DB2 UDB for UNIX, Windows: Performance Monitoring

• Message number: 291

• Message text: Aggregate registry variable &1 has been overwritten on partition &2

What causes this issue?

The marked registry variable is part of an aggregate registry variable.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DB6PM291 - Aggregate registry variable &1 has been overwritten on partition &2 ?

  The SAP error message DB6PM291 indicates that an aggregate registry variable has been overwritten on a specific partition. This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA, where aggregate data is stored for performance optimization.
  Cause:
  The error message DB6PM291 is usually caused by one of the following reasons:
  
  Data Load Issues: During data loading or processing, an aggregate variable may be inadvertently overwritten due to incorrect configurations or data inconsistencies.
  Concurrency Issues: Multiple processes or jobs trying to update the same aggregate at the same time can lead to conflicts and overwriting of the aggregate registry variable.
  Incorrect Partitioning: If the data is not correctly partitioned, it can lead to issues where aggregates are not properly maintained or updated.
  Configuration Errors: Misconfiguration in the data model or in the aggregate settings can lead to this error.
  
  Solution:
  To resolve the DB6PM291 error, you can take the following steps:
  
  Check Data Load Processes: Review the data load processes to ensure that they are not conflicting. Make sure that no two processes are trying to update the same aggregate at the same time.
  Review Partitioning: Ensure that the data is correctly partitioned. Check the partition settings and make sure that aggregates are defined correctly for each partition.
  Rebuild Aggregates: If the aggregates are corrupted or incorrectly defined, consider rebuilding them. This can often resolve issues related to overwritten variables.
  Monitor Concurrent Jobs: Use transaction codes like SM37 to monitor background jobs and ensure that there are no concurrent jobs that might be causing the issue.
  Check for Configuration Errors: Review the configuration settings for the aggregates and ensure that they are set up correctly. This includes checking the aggregate definitions and their associated settings.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for information on aggregates and their management.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) for managing aggregates and monitoring data loads.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.