启动命令：C_FAKEFORK=1 sh -x /etc/init.d/celerybeat start
报错信息：You are using --app as an option of the beat sub-command:
celery beat --app celeryapp <...>
The support for this usage was removed in Celery 5.0. Instead you should use --app as a global option:
celery --app celeryapp beat <...>
Usage: celery beat [OPTIONS]
Try "celery beat --help" for help.
Error: no such option: --app
celery版本5.1，python3.8， django3
同时启动celery和beat,在django项目可以通过下面命令操作
fir_ser ：django项目
celery -A fir_ser worker --beat --scheduler django --loglevel=debug