How To Fix DMC_UTIL_MSG121 - Error while writting listener trace; Failed to modify log entry

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_UTIL_MSG - DMC: Messages for General Functions

• Message number: 121

• Message text: Error while writting listener trace; Failed to modify log entry

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_UTIL_MSG121 - Error while writting listener trace; Failed to modify log entry ?

  The SAP error message DMC_UTIL_MSG121 indicates that there was an issue while trying to write a listener trace, specifically that the system failed to modify a log entry. This error can occur in various contexts, often related to data management or logging processes within SAP systems.
  Possible Causes:
  
  File System Permissions: The user or service account running the SAP application may not have the necessary permissions to write to the log file or directory.
  Disk Space Issues: The disk where the log files are stored may be full, preventing any new log entries from being written.
  Corrupted Log Files: The log files themselves may be corrupted, leading to issues when trying to modify or append to them.
  Configuration Issues: There may be misconfigurations in the logging settings or the listener configuration that are causing the error.
  Concurrent Access: If multiple processes are trying to write to the same log file simultaneously, it could lead to conflicts.
  
  Solutions:
  
  
  Check Permissions:
  
  Ensure that the user or service account has the appropriate permissions to write to the log directory. You may need to adjust the permissions or run the service with a different account that has the necessary access.
  
  
  
  Free Up Disk Space:
  
  Check the disk space on the server where the logs are stored. If the disk is full, you will need to free up space by deleting unnecessary files or increasing the disk capacity.
  
  
  
  Check and Repair Log Files:
  
  If you suspect that the log files are corrupted, you may need to back them up and then delete or rename the problematic log files. The system should recreate them as needed.
  
  
  
  Review Configuration Settings:
  
  Review the configuration settings for the logging and listener services. Ensure that they are set up correctly and that there are no conflicting settings.
  
  
  
  Monitor Concurrent Access:
  
  If multiple processes are accessing the log files, consider implementing a locking mechanism or adjusting the logging strategy to avoid conflicts.
  
  
  
  Restart Services:
  
  Sometimes, simply restarting the relevant SAP services can resolve transient issues related to logging.
  
  
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  System Logs: Review the system logs (e.g., dev_w0, dev_dia) for any additional error messages or warnings that may provide more context about the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.