How To Fix RT184 - &1 &3 > &2 &3 Enqueue: Wait time above threshold

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 184

• Message text: &1 &3 > &2 &3 Enqueue: Wait time above threshold

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RT184 - &1 &3 > &2 &3 Enqueue: Wait time above threshold ?

  The SAP error message RT184 indicates that there is an issue with enqueue locks in the SAP system. Specifically, it means that a process is waiting for a lock to be released, and the wait time has exceeded a predefined threshold. This can lead to performance issues and may affect the overall functionality of the SAP system.
  Cause:
  
  Long-running Transactions: A transaction may be holding a lock for an extended period, preventing other transactions from accessing the same resource.
  Deadlocks: Two or more transactions may be waiting for each other to release locks, causing a deadlock situation.
  High Load: A sudden increase in the number of users or transactions can lead to contention for locks.
  Inefficient Code: Poorly optimized ABAP code or database queries can lead to longer execution times, holding locks longer than necessary.
  Configuration Issues: The threshold for wait times may be set too low for the current workload.
  
  Solution:
  
  Identify Long-running Transactions: Use transaction codes like SM12 (to check locks) and SM66 (to monitor global work processes) to identify which transactions are holding locks for too long.
  Optimize Code: Review and optimize any ABAP code or database queries that may be causing long execution times.
  Increase Wait Time Threshold: If the current threshold is too low for your system's workload, consider increasing it in the system configuration.
  Deadlock Resolution: If deadlocks are detected, analyze the transactions involved and modify them to avoid circular wait conditions.
  System Performance Tuning: Monitor system performance and consider tuning the database or increasing system resources if necessary.
  Regular Maintenance: Perform regular system maintenance, including database optimization and cleanup of old data, to improve performance.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM66: To monitor active processes in the system.
  ST22: To check for dumps that may provide insight into issues.
  ST04: To analyze database performance.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may provide additional guidance or patches related to enqueue issues.
  
  
  Monitoring Tools: Consider using SAP Solution Manager or other monitoring tools to proactively manage system performance and identify potential issues before they escalate.
  
  
  By addressing the underlying causes and implementing the suggested solutions, you can mitigate the occurrence of the RT184 error and improve the overall performance of your SAP system.