By default, ElastAlert 2 uses a simple basic logging configuration to print log messages to standard error. You can change the log level to INFO messages by using the --verbose or --debug command line options.

If you need a more sophisticated logging configuration, you can provide a full logging configuration in the config file. This way you can also configure logging to a file, to Logstash and adjust the logging format.

For details, see the end of examples/config.yaml.example where you can find an example logging configuration.