How To Fix RT183 - &1 &3 > &2 &3 enqueue: Frequency above threshold

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 183

• Message text: &1 &3 > &2 &3 enqueue: Frequency above threshold

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RT183 - &1 &3 > &2 &3 enqueue: Frequency above threshold ?

  The SAP error message RT183 indicates that an enqueue operation has failed because the frequency of requests for a particular resource has exceeded a predefined threshold. This typically occurs in environments where there are high contention and frequent access to certain resources, leading to performance issues or deadlocks.
  Cause:
  
  High Contention: Multiple users or processes are trying to access the same resource simultaneously, leading to a high frequency of enqueue requests.
  Configuration Issues: The threshold for enqueue requests may be set too low for the current workload.
  Inefficient Code: Poorly optimized ABAP code or database queries that lead to excessive locking of resources.
  System Load: High system load or insufficient resources (CPU, memory) can exacerbate the issue.
  
  Solution:
  
  Analyze the Enqueue Requests: Use transaction codes like SM12 (to check locks) and SM21 (to check system logs) to analyze which resources are causing the contention.
  Increase Threshold: If appropriate, consider increasing the threshold for enqueue requests in the system configuration. This can be done in the SAP profile parameters (e.g., enque/threshold).
  Optimize Code: Review and optimize the ABAP code or database queries that are causing high contention. Look for opportunities to reduce locking or to use more efficient data access patterns.
  Load Balancing: If applicable, distribute the workload more evenly across the system to reduce contention on specific resources.
  Monitor System Performance: Use tools like ST03N (Workload Analysis) to monitor system performance and identify bottlenecks.
  Review System Configuration: Ensure that the system is properly configured for the expected workload, including hardware resources and SAP parameters.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or patches related to this error.
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view locks), SM21 (to view system logs), and ST22 (to check dumps) for troubleshooting.
  Performance Tuning: Consider engaging in performance tuning activities, including database optimization and system resource allocation.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or a professional with expertise in SAP performance tuning.