• Starting Supervisor daemon manager...
  Error: Another program is already listening on a port that one of our HTTP servers is configured to use. Shut this program down first before starting supervisord.
  For help, use /usr/bin/supervisord -h
  ...fail!

解决：
find / -name supervisor.sock
unlink /***/supervisor.sock

还有类似这种错误，https://stackoverflow.com/questions/21189525/gunicorn-error-abnormal-termination
可以先尝试增加directory配置，避免环境问题导致。

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