How To Fix STREX124 - Communication error, check if all Trex servers are running

SAP Error Message - Details

• Message type: E = Error

• Message class: STREX - Message for TREX ABAP Client

• Message number: 124

• Message text: Communication error, check if all Trex servers are running

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message STREX124 - Communication error, check if all Trex servers are running ?

  The SAP error message STREX124 indicates a communication error with the TREX (Text Retrieval and Extraction) server. This error typically arises when the TREX server is not running, is unreachable, or there are network issues preventing communication between the SAP application server and the TREX server.
  Causes:
  
  TREX Server Not Running: The TREX server may not be started or has crashed.
  Network Issues: There could be network connectivity problems between the SAP application server and the TREX server.
  Configuration Issues: Incorrect configuration settings in the SAP system or TREX server can lead to communication failures.
  Firewall Restrictions: Firewalls may be blocking the necessary ports for communication between the servers.
  Resource Limitations: The TREX server may be overloaded or running out of resources (CPU, memory).
  
  Solutions:
  
  
  Check TREX Server Status:
  
  Log in to the TREX server and check if the TREX services are running. You can use the TREX administration tool or command line to verify the status.
  If the TREX server is not running, start it.
  
  
  
  Network Connectivity:
  
  Ensure that the SAP application server can reach the TREX server. You can use tools like ping or telnet to check connectivity.
  Verify that the correct hostname and port are being used in the configuration.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP system (transaction code RSCONN01 for RFC connections) to ensure they are correct.
  Ensure that the TREX server is properly configured in the SAP system.
  
  
  
  Firewall Settings:
  
  Check firewall settings to ensure that the necessary ports for TREX communication are open. The default port for TREX is usually 8400, but this can vary based on your configuration.
  
  
  
  Monitor Resource Usage:
  
  Check the resource usage on the TREX server. If it is overloaded, consider optimizing the server or increasing its resources.
  
  
  
  Logs and Traces:
  
  Review the TREX logs for any error messages that might provide more insight into the issue. Logs can typically be found in the TREX installation directory.
  Check the SAP application server logs for any related error messages.
  
  
  
  Related Information:
  
  TREX Administration: Familiarize yourself with the TREX administration tools and commands to manage and monitor the TREX server effectively.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to TREX communication errors.
  Documentation: Refer to the official SAP documentation for TREX and its integration with SAP systems for detailed configuration and troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the STREX124 error effectively. If the issue persists, consider reaching out to SAP support for further assistance.