How to change Log Level

How can I change the logging level for the Graylog Service or run it in debug mode.

I’m having issues with it starting and would like to run it in Debug mode.

So, I can figure out what is the root cause of the issue.


Go to web interface System - Logging and change log level from info to debug, in desired sections:

  • Graylog
  • Sockets
  • Indexer
  • Authentication

If you can’t access web interface, check file /etc/graylog/server/log4j2.xml

Hello Shoothub,

Thank you, that did the trick. Keeping this in my Graylog notes for sure.

Take Care,