How To Fix DB11183 - No ENQUEUE event occurred within top ten wait events

SAP Error Message - Details

• Message type: E = Error

• Message class: DB11 - Oracle Monitor: messages

• Message number: 183

• Message text: No ENQUEUE event occurred within top ten wait events

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB11183 - No ENQUEUE event occurred within top ten wait events ?

  The SAP error message DB11183 indicates that there was no ENQUEUE event that occurred within the top ten wait events in the database. This message is typically related to performance issues in the SAP system, particularly concerning database locks and waits.
  Cause:
  
  Database Locking Issues: The error suggests that the database is not experiencing significant locking contention, which could mean that the system is not effectively utilizing locks or that there are no active transactions that require locks.
  Performance Bottlenecks: Other wait events may be causing performance issues, leading to the absence of ENQUEUE events in the wait statistics.
  Configuration Issues: There may be configuration settings in the database or SAP system that are not optimized for the workload, leading to inefficient handling of transactions.
  Low Transaction Volume: If the system is not under heavy load, there may simply be fewer transactions requiring locks, resulting in fewer ENQUEUE events.
  
  Solution:
  
  Analyze Wait Events: Use database monitoring tools to analyze the wait events and identify which events are causing delays. Focus on the top wait events to understand where the bottlenecks are occurring.
  Database Performance Tuning: Optimize database performance by tuning parameters, such as memory allocation, I/O settings, and query optimization. This may involve adjusting the database configuration or optimizing SQL queries.
  Review Application Logic: Check the application logic in the SAP system to ensure that transactions are being handled efficiently and that locks are being released promptly.
  Increase Transaction Volume: If the system is underutilized, consider increasing the transaction volume to better assess the locking behavior and performance.
  Consult Documentation: Refer to SAP Notes and documentation related to database performance and locking mechanisms for specific recommendations based on your database type (e.g., Oracle, HANA, SQL Server).
  Engage with Support: If the issue persists, consider reaching out to SAP support or your database administrator for further assistance in diagnosing and resolving the issue.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to DB11183 or provide guidance on performance tuning.
  Database Monitoring Tools: Utilize tools like SAP Solution Manager, Oracle Enterprise Manager, or other database monitoring solutions to gain insights into database performance.
  Performance Metrics: Monitor key performance metrics such as CPU usage, memory usage, and I/O statistics to identify potential areas for improvement.
  
  By following these steps, you can better understand the underlying causes of the DB11183 error and implement solutions to improve the performance of your SAP system.