How To Fix DB6PM191 - Percentage of entries to be sampled not required, values have been reset

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 191

• Message text: Percentage of entries to be sampled not required, values have been reset

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB6PM191 - Percentage of entries to be sampled not required, values have been reset ?

  The SAP error message DB6PM191 indicates that the percentage of entries to be sampled for a particular operation has been reset because it is not required. This typically occurs in the context of database management and performance monitoring within SAP systems, particularly when dealing with database statistics or performance analysis.
  Cause:
  
  Sampling Configuration: The error usually arises when the sampling percentage set for a particular operation is either too low or not applicable for the current context. This can happen if the system determines that the sampling is unnecessary due to the nature of the data or the operation being performed.
  Database Statistics: If the database statistics are being collected and the system finds that the current configuration does not require sampling, it will reset the values.
  Thresholds and Limits: The system may have internal thresholds that dictate when sampling is necessary. If the conditions do not meet these thresholds, the sampling percentage may be reset.
  
  Solution:
  
  Review Sampling Settings: Check the configuration settings for sampling in your SAP system. Ensure that the percentage of entries to be sampled is set appropriately for your needs.
  Database Statistics Update: If you are trying to collect statistics, ensure that the database is configured correctly to allow for sampling. You may need to adjust the parameters related to statistics collection.
  Consult Documentation: Refer to the SAP documentation or notes related to database performance and sampling. There may be specific guidelines or recommendations for your version of SAP.
  System Monitoring: Monitor the system performance and database statistics to ensure that the reset does not impact overall performance. If necessary, adjust the parameters based on observed performance metrics.
  Contact SAP Support: If the issue persists or if you are unsure about the configuration, consider reaching out to SAP support for assistance. They can provide insights based on your specific system setup.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error message or provide additional context.
  Database Documentation: Review the documentation for the specific database you are using with SAP (e.g., HANA, Oracle, SQL Server) for any related settings or configurations.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools to analyze the impact of the sampling settings on your system's performance.
  
  By addressing the configuration and understanding the context of the error, you can resolve the issue and ensure that your SAP system operates efficiently.