问题
According to the Celery documentation, the -l/--loglevel command line option can be used for:
-l, --loglevel
Logging level, choose between DEBUG, INFO, WARNING, ERROR, CRITICAL, or FATAL.
If this option is not used and therefore no log level is specified, what is the log level used by Celery by default?
回答1:
Default log level in Celery is WARNING due implementation here. That level is set during initialization of the Logging instance.
来源：https://stackoverflow.com/questions/44428064/what-is-the-default-celery-log-level-if-none-is-specified