How To Fix DB11180 - Enq: &1 responsible for >= &2 % of total db time

SAP Error Message - Details

• Message type: E = Error

• Message class: DB11 - Oracle Monitor: messages

• Message number: 180

• Message text: Enq: &1 responsible for >= &2 % of total db time

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB11180 - Enq: &1 responsible for >= &2 % of total db time ?

  The SAP error message DB11180 indicates that a specific enqueue (Enq) operation is responsible for a significant portion of the total database time, specifically greater than or equal to a specified percentage (>= &2 %). This can lead to performance issues in the SAP system, as it suggests that a particular resource is being heavily contended or that there are inefficiencies in how database locks are being managed.
  Cause:
  
  High Contention for Resources: The enqueue operation may be waiting for locks on database objects that are frequently accessed by multiple transactions, leading to contention.
  Long-running Transactions: If there are transactions that hold locks for an extended period, they can block other transactions, causing increased wait times.
  Inefficient Lock Management: Poorly designed application logic or database schema can lead to excessive locking or unnecessary locks being held.
  Database Configuration Issues: Suboptimal database settings or configurations can exacerbate locking issues.
  Heavy Load on the System: A sudden increase in workload or concurrent users can lead to increased locking and waiting times.
  
  Solution:
  
  Analyze Lock Waits: Use transaction codes like SM12 (to view locks) and SM21 (to check system logs) to identify which transactions are holding locks and for how long.
  Optimize Transactions: Review and optimize the application logic to ensure that locks are held for the shortest time possible. This may involve breaking down long transactions into smaller ones.
  Increase Database Resources: If the system is under heavy load, consider scaling up the database resources (CPU, memory, etc.) or optimizing the database configuration.
  Review Database Configuration: Check the database settings for parameters related to locking and concurrency. Adjust them as necessary to improve performance.
  Implement Lock Monitoring: Set up monitoring for lock contention and performance metrics to proactively identify and address issues before they impact users.
  Database Tuning: Engage in database tuning activities, such as indexing, to improve query performance and reduce locking contention.
  Consult SAP Notes: Check for any relevant SAP Notes that may provide specific guidance or patches related to the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12, SM21, ST22, and DB02 for monitoring locks, system logs, dumps, and database performance.
  Performance Monitoring Tools: Utilize SAP's performance monitoring tools like ST03N (Workload Analysis) and ST04 (Database Performance Analysis) to gain insights into system performance.
  SAP Community and Support: Engage with the SAP Community or SAP Support for additional insights and assistance if the issue persists.
  
  By addressing the underlying causes of the DB11180 error, you can improve the overall performance of your SAP system and reduce the impact of locking on database operations.