How To Fix /IWXBE/CORE119 - MQTT connection disconnected for channel '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWXBE/CORE -

• Message number: 119

• Message text: MQTT connection disconnected for channel '&1'

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 /IWXBE/CORE119 - MQTT connection disconnected for channel '&1' ?

  The SAP error message /IWXBE/CORE119 MQTT connection disconnected for channel '&1' typically indicates that there is an issue with the MQTT (Message Queuing Telemetry Transport) connection for a specific channel in the SAP system. This can occur due to various reasons, including network issues, configuration problems, or resource limitations.
  Causes:
  
  Network Issues: The connection to the MQTT broker may be interrupted due to network instability or firewall settings blocking the connection.
  Broker Configuration: The MQTT broker may not be configured correctly, or it may be down or unreachable.
  Resource Limitations: The SAP system or the MQTT broker may be running out of resources (e.g., memory, CPU), leading to disconnections.
  Timeout Settings: The connection may be timing out due to inactivity or misconfigured timeout settings.
  Authentication Issues: If the MQTT broker requires authentication, incorrect credentials can lead to disconnection.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the MQTT broker is stable. You can use tools like ping or traceroute to diagnose network issues.
  Verify Broker Status: Check if the MQTT broker is running and accessible. You may need to restart the broker if it is down.
  Review Configuration: Ensure that the MQTT channel configuration in SAP is correct. This includes checking the broker address, port, and any authentication settings.
  Monitor Resource Usage: Check the resource usage on both the SAP system and the MQTT broker. If either is under heavy load, consider optimizing performance or scaling resources.
  Adjust Timeout Settings: If applicable, review and adjust the timeout settings for the MQTT connection to prevent premature disconnections.
  Check Logs: Review the logs for both the SAP system and the MQTT broker for any error messages or warnings that could provide more context on the disconnection.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to MQTT connections.
  Documentation: Refer to the official SAP documentation for MQTT configuration and troubleshooting.
  Community Forums: Engage with SAP community forums or support channels for additional insights and shared experiences from other users facing similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.