How To Fix MSGSERVER009 - Host name buffer has been written to trace file

SAP Error Message - Details

• Message type: E = Error

• Message class: MSGSERVER - Messages for Message Server

• Message number: 009

• Message text: Host name buffer has been written to trace file

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MSGSERVER009 - Host name buffer has been written to trace file ?

  The SAP error message MSGSERVER009 indicates that there is an issue related to the hostname buffer, which has been logged to a trace file. This message typically arises in the context of SAP's message server, which is responsible for managing communication between different instances of SAP systems.
  Cause:
  The error can be caused by several factors, including:
  
  Hostname Resolution Issues: The system may be unable to resolve the hostname correctly, leading to issues in communication between SAP instances.
  Network Configuration Problems: Incorrect network settings or firewall rules may prevent proper communication.
  Configuration Errors: Misconfigurations in the SAP system settings, such as the instance profile or the message server configuration.
  Resource Limitations: Insufficient system resources (like memory or CPU) can lead to failures in processing requests.
  
  Solution:
  To resolve the MSGSERVER009 error, you can follow these steps:
  
  
  Check Hostname Resolution:
  
  Ensure that the hostname is correctly configured in the /etc/hosts file (for UNIX/Linux) or in the DNS settings.
  Use commands like ping or nslookup to verify that the hostname resolves correctly.
  
  
  
  Review Network Configuration:
  
  Check firewall settings to ensure that the necessary ports for SAP communication are open.
  Verify that there are no network issues affecting connectivity between SAP instances.
  
  
  
  Examine SAP Configuration:
  
  Review the instance profile parameters related to the message server. Ensure that the ms/hostname parameter is set correctly.
  Check the sapms<instance> service in the SAP profile to ensure it is configured properly.
  
  
  
  Check Trace Files:
  
  Look into the trace files generated by the message server for more detailed information about the error. The trace files can usually be found in the trace directory of the SAP instance.
  Analyze the logs for any additional error messages or warnings that could provide more context.
  
  
  
  Resource Monitoring:
  
  Monitor system resources (CPU, memory, disk space) to ensure that the server is not under heavy load.
  If resource limitations are identified, consider optimizing the system or upgrading hardware.
  
  
  
  Restart Services:
  
  Sometimes, simply restarting the message server or the entire SAP system can resolve transient issues.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring the message server and troubleshooting common issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the MSGSERVER009 error effectively.