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{{kib}} logging supports the following log levels: off, fatal, error, warn, info, debug, trace, all.
Levels are ordered, so off > fatal > error > warn > info > debug > trace > all.
A record will be logged by the logger if its level is higher than or equal to the level of its logger. For example: If the output of an API call is configured to log at the info level and the parameters passed to the API call are set to debug, with a global logging configuration in kibana.yml set to debug, both the output and parameters are logged. If the log level is set to info, the debug logs are ignored, meaning that you’ll only get a record for the API output and not for the parameters.
To set the log level, add the logging.root.level setting to kibana.yml, specifying the log level that you want. logging.root.level defaults to info.
In a self-managed cluster, these levels can also be specified using CLI arguments, and different log levels can be set for various loggers. Learn more.