How To Fix RSMSS_ANALYZER_MSG011 - Property: MAXDOP

SAP Error Message - Details

• Message type: E = Error

• Message class: RSMSS_ANALYZER_MSG - Messages for RSMSS_ANALYZER

• Message number: 011

• Message text: Property: MAXDOP

MAXDOP stands for maximal degree of parallelism.
When specifying MAXDOP you specify for SQL Server the maximum number of
database processes used to parallelize the index creation. The database
engine itself decides a value less or equal to the value specified.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSMSS_ANALYZER_MSG011 - Property: MAXDOP ?

  The SAP error message RSMSS_ANALYZER_MSG011 related to the property MAXDOP (Maximum Degree of Parallelism) typically arises in the context of SQL Server performance tuning and configuration. This error indicates that the MAXDOP setting is not configured optimally for the workload being processed, which can lead to performance issues.
  Cause:
  
  Improper Configuration: The MAXDOP setting controls the number of processors that can be used for the execution of a single query. If this value is set too high or too low, it can lead to inefficient query execution.
  Workload Characteristics: Different workloads may require different MAXDOP settings. For example, OLTP (Online Transaction Processing) systems often benefit from a lower MAXDOP, while OLAP (Online Analytical Processing) systems may benefit from a higher setting.
  SQL Server Version: Different versions of SQL Server may have different recommendations for MAXDOP settings based on improvements in query optimization and execution.
  
  Solution:
  
  
  Review and Adjust MAXDOP Setting:
  
  For SQL Server, you can adjust the MAXDOP setting at the server level or for individual queries.
  A common recommendation is to set MAXDOP to the number of physical cores divided by 2, but this can vary based on specific workload requirements.
  You can change the setting using SQL Server Management Studio (SSMS) or by executing a T-SQL command:
  EXEC sp_configure 'show advanced options', 1;
  RECONFIGURE;
  EXEC sp_configure 'max degree of parallelism', <desired_value>;
  RECONFIGURE;
  
  
  
  
  Analyze Workload: Use SQL Server's Query Store or other performance monitoring tools to analyze the workload and determine the optimal MAXDOP setting based on query performance.
  
  
  Consult Documentation: Refer to the official Microsoft documentation for SQL Server regarding MAXDOP settings and best practices, as recommendations may vary based on the version and specific use case.
  
  
  Test Changes: After making adjustments, monitor the performance of your queries to ensure that the changes have a positive impact.
  
  
  Related Information:
  
  Best Practices: Microsoft provides guidelines on setting MAXDOP based on the type of workload. For example, OLTP systems often benefit from a lower MAXDOP (1-4), while data warehouse systems may use higher values (up to 8 or more).
  SQL Server Documentation: Always refer to the latest SQL Server documentation for updates on performance tuning and configuration settings.
  Performance Monitoring Tools: Utilize tools like SQL Server Profiler, Extended Events, or third-party monitoring solutions to gain insights into query performance and resource utilization.
  
  By addressing the MAXDOP setting appropriately, you can help mitigate performance issues and improve the efficiency of your SQL Server queries in the context of SAP applications.