How To Fix DB11184 - No LATCH event occurred within top ten wait events

SAP Error Message - Details

• Message type: E = Error

• Message class: DB11 - Oracle Monitor: messages

• Message number: 184

• Message text: No LATCH 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB11184 - No LATCH event occurred within top ten wait events ?

  The SAP error message DB11184, which states "No LATCH event occurred within top ten wait events," typically indicates that the database is not experiencing any latch contention issues that would normally be reported in the wait events. This message is often related to performance monitoring and diagnostics in SAP systems that use databases like Oracle or SQL Server.
  Cause:
  
  Lack of Latch Contention: The primary cause of this message is that the system is not experiencing latch contention, which means that the database is functioning normally without any significant wait events related to latches.
  Performance Monitoring: This message may appear during performance monitoring or analysis when the system is checked for latch-related performance issues, but none are found.
  Configuration Issues: In some cases, it could indicate that the monitoring tools or configurations are not set up correctly to capture latch events.
  
  Solution:
  
  Ignore the Message: If the system is performing well and there are no performance issues, this message can often be ignored. It simply indicates that latch contention is not a problem at this time.
  Monitor Performance: Continue to monitor the performance of the database and the SAP system. Use performance monitoring tools to check for other potential bottlenecks or issues.
  Review Configuration: Ensure that the database and SAP system are configured correctly for performance monitoring. Check if the monitoring tools are set up to capture all relevant events.
  Consult Documentation: Refer to the SAP and database documentation for further insights into latch events and performance monitoring. This can provide additional context on how to interpret the message and what to look for in terms of performance.
  
  Related Information:
  
  Latch Contention: Latches are lightweight synchronization mechanisms used by databases to protect shared data structures. High latch contention can lead to performance degradation.
  Performance Tuning: If you are experiencing performance issues, consider looking into other areas such as query optimization, indexing strategies, and resource allocation.
  Database Logs: Check the database logs for any other warnings or errors that might indicate underlying issues.
  SAP Notes: Look for relevant SAP Notes that might address this specific error message or provide guidance on performance monitoring.
  
  If you continue to experience issues or if the system performance is not as expected, it may be beneficial to engage with a database administrator or SAP support for a more in-depth analysis.