How To Fix RZ446 - Database statistics buffer alert

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 446

• Message text: Database statistics buffer alert

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RZ446 - Database statistics buffer alert ?

  The SAP error message RZ446, which indicates a "Database statistics buffer alert," typically arises when the database statistics buffer in the SAP system is either full or not being updated correctly. This can lead to performance issues, as the database may not have the most current statistics for query optimization.
  Cause:
  
  Buffer Full: The database statistics buffer may be full, meaning it cannot accept new statistics.
  Statistics Not Updated: The statistics may not be updated regularly, leading to outdated information being used for query optimization.
  Configuration Issues: There may be configuration issues in the SAP system or the database that prevent proper statistics collection or storage.
  Database Performance: If the database is under heavy load, it may not be able to process statistics updates efficiently.
  
  Solution:
  
  Check Buffer Size: Increase the size of the database statistics buffer if it is full. This can often be done through database configuration settings.
  Update Statistics: Manually trigger an update of the database statistics. This can usually be done through transaction codes like DB02 or DBACOCKPIT in SAP.
  Schedule Regular Updates: Set up a regular job to update database statistics to ensure they are kept current. This can help prevent the buffer from becoming full.
  Monitor Database Performance: Use monitoring tools to keep an eye on database performance and ensure that it is not overloaded.
  Check Configuration: Review the configuration settings for both the SAP system and the database to ensure they are optimized for statistics collection and storage.
  Consult Documentation: Refer to the SAP Notes and documentation specific to your database system (e.g., Oracle, SQL Server, HANA) for additional guidance on managing database statistics.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like DB02, DBACOCKPIT, or ST04 to monitor database performance and statistics.
  SAP Notes: Check SAP Notes related to RZ446 for specific patches or updates that may address the issue.
  Database Documentation: Consult the documentation for your specific database system for best practices on managing statistics and performance tuning.
  Performance Tuning: Consider engaging with a database administrator (DBA) for performance tuning and optimization strategies.
  
  By addressing the underlying causes and implementing the suggested solutions, you can resolve the RZ446 error and improve the performance of your SAP system.