How To Fix D3820 - No active bufferpool for this thread

SAP Error Message - Details

• Message type: E = Error

• Message class: D3 - CCMS - DB2 on OS390

• Message number: 820

• Message text: No active bufferpool for this thread

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 D3820 - No active bufferpool for this thread ?

  The SAP error message D3820, which states "No active bufferpool for this thread," typically indicates an issue related to the database buffer pool configuration in the SAP system. This error can occur in various scenarios, particularly when the system is unable to allocate a buffer pool for a specific thread, which can lead to performance issues or even system failures.
  Causes:
  
  Buffer Pool Configuration: The buffer pool may not be properly configured or may not be active for the current thread.
  Database Connection Issues: There may be issues with the database connection that prevent the allocation of a buffer pool.
  Resource Limitations: The system may be running low on resources (memory, CPU) that are required to allocate a buffer pool.
  Thread Management: The thread management settings may not be optimized, leading to issues in thread allocation and buffer pool assignment.
  Database Version or Compatibility: There may be compatibility issues between the SAP application and the database version being used.
  
  Solutions:
  
  
  Check Buffer Pool Configuration:
  
  Review the buffer pool settings in the database configuration. Ensure that the buffer pool is defined and active.
  Adjust the size of the buffer pool if necessary to accommodate the workload.
  
  
  
  Database Connection:
  
  Verify that the database connection is stable and functioning correctly. Check for any connectivity issues or errors in the database logs.
  
  
  
  Resource Monitoring:
  
  Monitor system resources (memory, CPU) to ensure that there are sufficient resources available for the SAP application and database.
  If resources are low, consider increasing the available memory or optimizing the workload.
  
  
  
  Thread Management:
  
  Review the thread management settings in the SAP system. Ensure that the maximum number of threads is set appropriately for the workload.
  Consider tuning the thread pool settings to improve performance.
  
  
  
  Database Compatibility:
  
  Ensure that the database version is compatible with the SAP version you are using. If there are known issues, consider applying patches or updates.
  
  
  
  Restart Services:
  
  In some cases, restarting the SAP application server or the database server may resolve temporary issues related to buffer pool allocation.
  
  
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. SAP Notes often contain patches, workarounds, or additional troubleshooting steps.
  Database Documentation: Refer to the documentation for the specific database being used (e.g., HANA, Oracle, SQL Server) for guidance on buffer pool management and configuration.
  System Logs: Review the system logs (transaction SM21) and developer traces (transaction ST22) for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.