How To Fix RT181 - Monitoring object: Enqueue server

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 181

• Message text: Monitoring object: Enqueue server

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 RT181 - Monitoring object: Enqueue server ?

  The SAP error message RT181, which refers to "Monitoring object: Enqueue server," typically indicates an issue related to the enqueue server in the SAP system. The enqueue server is responsible for managing locks on objects in the SAP database to ensure data consistency and integrity during concurrent access.
  Cause:
  
  Enqueue Server Down: The enqueue server may not be running or has crashed.
  Network Issues: There may be network connectivity problems between the application server and the enqueue server.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to issues with the enqueue server.
  Resource Limitations: The enqueue server may be experiencing resource limitations, such as memory or CPU constraints.
  Database Lock Issues: There may be issues with database locks that are causing the enqueue server to malfunction.
  
  Solution:
  
  
  Check Enqueue Server Status: 
  
  Use transaction code SM12 to check for any locks that may be causing issues.
  Use transaction code SM21 to check the system log for any related error messages.
  
  
  
  Restart Enqueue Server:
  
  If the enqueue server is down, restart it. This can typically be done through the SAP Management Console (SAP MC) or by restarting the entire SAP instance.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues between the application servers and the enqueue server. You can use tools like ping or traceroute to diagnose network problems.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP system for the enqueue server. Ensure that they are set correctly according to the system's requirements.
  
  
  
  Monitor System Resources:
  
  Use transaction code ST02 (buffer management) and ST06 (OS monitoring) to check for any resource bottlenecks on the enqueue server.
  
  
  
  Check for Database Issues:
  
  Investigate any database-related issues that may be affecting the enqueue server. This may involve checking for long-running transactions or locks in the database.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the enqueue server.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display Locks
  SM21: System Log
  ST02: Tune Buffers
  ST06: Operating System Monitor
  SMD1: Enqueue Monitor
  
  
  
  SAP Documentation: Refer to the official SAP documentation for more detailed information on the enqueue server and troubleshooting steps.
  
  
  SAP Community: Engage with the SAP Community forums for insights and solutions from other SAP users who may have encountered similar issues.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.