Я использую свой сервер django с gunicorn и супервизором.
Вот мой конф. Администратора,
[program:api]
process_name=api
command=command-to-run
user=api
directory=/opt/api/api
redirect_stderr=true
stderr_logfile=/var/log/api/stderr.log
stdout_logfile=/var/log/api/stdout.log
autostart=true
autorestart=true
logfile_maxbytes = 50MB
logfile_backups = 10
stopsignal=HUP
Когда я запускаю sudo supervisorctl,
:/var/log/consumer_api$ sudo supervisorctl
api RUNNING pid 1674, uptime 3:13:29
>
Вот журналы gunicorn, когда я перезапускаю мое приложение api в супервизоре, sudo supervisorctl restart api
[2019-02-14 16:09:02 +0000] [25740] [INFO] Handling signal: hup
[2019-02-14 16:09:02 +0000] [25740] [INFO] Hang up: Master
[2019-02-14 16:09:02 +0000] [1593] [INFO] Booting worker with pid: 1593
[2019-02-14 16:09:02 +0000] [1594] [INFO] Booting worker with pid: 1594
[2019-02-14 16:09:02 +0000] [1597] [INFO] Booting worker with pid: 1597
[2019-02-14 16:09:02 +0000] [1595] [INFO] Booting worker with pid: 1595
[2019-02-14 16:09:02 +0000] [1596] [INFO] Booting worker with pid: 1596
[2019-02-14 16:09:02 +0000] [1598] [INFO] Booting worker with pid: 1598
[2019-02-14 21:39:02 +0530] [25756] [INFO] Worker exiting (pid: 25756)
[2019-02-14 21:39:02 +0530] [25758] [INFO] Worker exiting (pid: 25758)
[2019-02-14 21:39:02 +0530] [25759] [INFO] Worker exiting (pid: 25759)
[2019-02-14 21:39:02 +0530] [25760] [INFO] Worker exiting (pid: 25760)
[2019-02-14 21:39:02 +0530] [25769] [INFO] Worker exiting (pid: 25769)
[2019-02-14 21:39:02 +0530] [25773] [INFO] Worker exiting (pid: 25773)
[2019-02-14 21:39:02 +0530] [7029] [INFO] Worker exiting (pid: 7029)
[2019-02-14 21:39:02 +0530] [7336] [INFO] Worker exiting (pid: 7336)
[2019-02-14 16:09:02 +0000] [1607] [INFO] Booting worker with pid: 1607
[2019-02-14 16:09:02 +0000] [1605] [INFO] Booting worker with pid: 1605
[2019-02-14 16:09:02 +0000] [1606] [INFO] Booting worker with pid: 1606
[2019-02-14 21:39:02 +0530] [25767] [INFO] Worker exiting (pid: 25767)
[2019-02-14 21:39:12 +0530] [1593] [INFO] Parent changed, shutting down: <Worker 1593>
[2019-02-14 21:39:12 +0530] [1593] [INFO] Worker exiting (pid: 1593)
[2019-02-14 16:09:12 +0000] [1674] [INFO] Starting gunicorn 19.8.1
[2019-02-14 16:09:12 +0000] [1674] [ERROR] Connection in use: ('127.0.0.1', 8000)
[2019-02-14 16:09:12 +0000] [1674] [ERROR] Retrying in 1 second.
[2019-02-14 21:39:12 +0530] [1605] [INFO] Parent changed, shutting down: <Worker 1605>
[2019-02-14 21:39:12 +0530] [1605] [INFO] Worker exiting (pid: 1605)
[2019-02-14 21:39:12 +0530] [1596] [INFO] Parent changed, shutting down: <Worker 1596>
[2019-02-14 21:39:12 +0530] [1596] [INFO] Worker exiting (pid: 1596)
[2019-02-14 21:39:12 +0530] [1595] [INFO] Parent changed, shutting down: <Worker 1595>
[2019-02-14 21:39:12 +0530] [1595] [INFO] Worker exiting (pid: 1595)
[2019-02-14 21:39:12 +0530] [1606] [INFO] Parent changed, shutting down: <Worker 1606>
[2019-02-14 21:39:12 +0530] [1606] [INFO] Worker exiting (pid: 1606)
[2019-02-14 21:39:13 +0530] [1594] [INFO] Parent changed, shutting down: <Worker 1594>
[2019-02-14 21:39:13 +0530] [1594] [INFO] Worker exiting (pid: 1594)
[2019-02-14 16:09:13 +0000] [1674] [ERROR] Connection in use: ('127.0.0.1', 8000)
[2019-02-14 16:09:13 +0000] [1674] [ERROR] Retrying in 1 second.
[2019-02-14 21:39:13 +0530] [1597] [INFO] Parent changed, shutting down: <Worker 1597>
[2019-02-14 21:39:13 +0530] [1597] [INFO] Worker exiting (pid: 1597)
[2019-02-14 21:39:14 +0530] [1598] [INFO] Parent changed, shutting down: <Worker 1598>
[2019-02-14 21:39:14 +0530] [1598] [INFO] Worker exiting (pid: 1598)
[2019-02-14 21:39:14 +0530] [1607] [INFO] Parent changed, shutting down: <Worker 1607>
[2019-02-14 21:39:14 +0530] [1607] [INFO] Worker exiting (pid: 1607)
[2019-02-14 16:09:14 +0000] [1674] [ERROR] Connection in use: ('127.0.0.1', 8000)
[2019-02-14 16:09:14 +0000] [1674] [ERROR] Retrying in 1 second.
[2019-02-14 16:09:15 +0000] [1674] [INFO] Listening at: http://127.0.0.1:8000 (1674)
[2019-02-14 16:09:15 +0000] [1674] [INFO] Using worker: sync
[2019-02-14 16:09:15 +0000] [1674] [INFO] Server is ready. Spawning workers
[2019-02-14 16:09:15 +0000] [1684] [INFO] Booting worker with pid: 1684
[2019-02-14 16:09:15 +0000] [1686] [INFO] Booting worker with pid: 1686
[2019-02-14 16:09:15 +0000] [1688] [INFO] Booting worker with pid: 1688
[2019-02-14 16:09:15 +0000] [1689] [INFO] Booting worker with pid: 1689
[2019-02-14 16:09:15 +0000] [1690] [INFO] Booting worker with pid: 1690
[2019-02-14 16:09:15 +0000] [1691] [INFO] Booting worker with pid: 1691
[2019-02-14 16:09:15 +0000] [1692] [INFO] Booting worker with pid: 1692
[2019-02-14 16:09:15 +0000] [1694] [INFO] Booting worker with pid: 1694
[2019-02-14 16:09:15 +0000] [1697] [INFO] Booting worker with pid: 1697
Я отправляю HUP в мой процесс gunicorn, поэтому он должен грациозно закрыть предыдущие запросы, а затемпринимать новые запросы только после правильной перезагрузки.
Но все же я получаю 502 500 на своих API.
Я знаю, что мы можем сделать, kill -HUP pid, но это бесполезно, когда я изменяю свою конфигурацию супервизора и приходится делать reread и update.
Также, sudo supervisorctl signal hup api, работает совершенно нормально, но, опять же, сталкивается с проблемой, когда я изменяю конфигурацию своего супервизора.Затем снова нужно сделать reread и update, и update вызывает перезапуск, и я снова теряю свои запросы до 502.
Здесь, в документах, руководитель упомянул о stopsignal,но это не так, почему так происходит?