The Hobson Hub logs information to hobson.log file in the logs folder of the main Hobson Hub folder.
There are a number of log levels that are supported:
Messages indicating something has gone wrong.
Messages indicating something out of the ordinary but most likely not an error.
The first level of diagnostic information. These messages indicate high-level activity occurring in the Hub but shouldn't fill the log file too quickly.
The second level of diagnostic information. These messages indicate detailed activity occurring in the Hub and may fill the log file quickly.
Note that each log level includes the ones above it. So, for example, the INFO level will also include ERROR and WARNING messages.
Startup Logging Level
By default, the Hobson Hub starts with its logging level set to INFO level. While you can change the logging level through the web console or REST API on the fly, this will only last until the Hub is restarted and may not help if a problem is occurring during Hub startup.
To change the logging level used at startup, edit the logging.xml file located in the conf directory of your Hobson installation. Look for the following line: