【已解决】Mac中本地用supervidord部署运行Flask的app但经常退出无法稳定运行

折腾：

【已解决】Flask本地和线上用gunicorn和supervisor部署时如何传入环境变量

期间，已经试了很多次的：

1	`supervisord -c conf/supervisor/supervisord_local.conf`

但是发现：

有时候可以正常启动，有时候不行。

其中不行的时候，往往是：

supervisord -c conf/supervisor/supervisord_local.conf

终端不输出任何东西。

正常的时候，一般输出是：

1 2	`➜ xxxRobotDemoServer git:(master) ✗ supervisord -c conf/supervisor/supervisord_local.conf` `Unlinking stale socket` `/var/run/supervisor.sock`

但也不一定：

比如刚刚就发现：

1 2	`➜ xxxRobotDemoServer git:(master) ✗ supervisorctl status` `robotDemo EXITED Aug 22 03:47 PM`

实际上还是退出了。

去看log的话，此处是：

logs/gunicorn_error.log

[2018-08-22 15:47:51 +0800] [60354] [ERROR] Connection in use: ('0.0.0.0', 32851)
[2018-08-22 15:47:51 +0800] [60354] [ERROR] Retrying in 1 second.
[2018-08-22 15:47:52 +0800] [60354] [ERROR] Can't connect to ('0.0.0.0', 32851)

logs/supervisord.log

2018-08-22 15:47:45,431 INFO RPC interface 'supervisor' initialized
2018-08-22 15:47:45,431 CRIT Server 'inet_http_server' running without any HTTP authentication checking
2018-08-22 15:47:45,736 INFO RPC interface 'supervisor' initialized
2018-08-22 15:47:45,736 CRIT Server 'unix_http_server' running without any HTTP authentication checking
2018-08-22 15:47:45,738 INFO daemonizing the supervisord process
2018-08-22 15:47:45,740 INFO supervisord started with pid 60345
2018-08-22 15:47:46,746 INFO spawned: 'robotDemo' with pid 60354
2018-08-22 15:47:47,751 INFO success: robotDemo entered RUNNING state, process has stayed up for > than 0 seconds (startsecs)
2018-08-22 15:47:52,275 DEBG 'robotDemo' stdout output:
curPath=/Users/crifan/dev/dev_root/company/xxx/projects/robotDemo/server/xxxRobotDemoServer/conf/gunicorn
confPath=/Users/crifan/dev/dev_root/company/xxx/projects/robotDemo/server/xxxRobotDemoServer/conf/gunicorn/..
Before load .env: DEBUG=False, MONGODB_HOST=localhost, FILE_URL_HOST=127.0.0.1
cur_flask_environ=production
FLASK_ENV=production
cur_dir=/Users/crifan/dev/dev_root/company/xxx/projects/robotDemo/server/xxxRobotDemoServer/conf/app
env_folder=production
dotenv_path=/Users/crifan/dev/dev_root/company/xxx/projects/robotDemo/server/xxxRobotDemoServer/conf/app/production/.env
dotenv_load_ok=True
After  load .env: DEBUG=False, MONGODB_HOST=localhost, FILE_URL_HOST=xxx
settings=<module 'conf.app.settings' from '/Users/crifan/dev/dev_root/company/xxx/projects/robotDemo/server/xxxRobotDemoServer/conf/app/settings.py'>
appRootPath=/Users/crifan/dev/dev_root/company/xxx/projects/robotDemo/server/xxxRobotDemoServer/conf/gunicorn/../..
flaskHost=0.0.0.0, flaskPort=32851
 
2018-08-22 15:47:52,341 DEBG fd 13 closed, stopped monitoring <POutputDispatcher at 4396817800 for <Subprocess at 4396120544 with name robotDemo in state RUNNING> (stderr)>
2018-08-22 15:47:52,341 DEBG fd 11 closed, stopped monitoring <POutputDispatcher at 4396817440 for <Subprocess at 4396120544 with name robotDemo in state RUNNING> (stdout)>
2018-08-22 15:47:52,342 INFO exited: robotDemo (exit status 1; not expected)
2018-08-22 15:47:52,342 DEBG received SIGCHLD indicating a child quit

此处不正常，则：

没有robotDemo.log

-》正常启动的话，是有的。

需要搞清楚此处到底为何，有时候可以运行，有时候又不行。

后来也去试了试：

[program:robotDemo]
;command=/Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c gunicorn_config.py app:app
command=/Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
environment = FLASK_ENV="production"
...
;autorestart=true
autorestart=false

避免每次挂了，就一直重启->导致Mac都卡了。

注意到：

1	`[ERROR] Connection` `in` `use: ('0.0.0.0', 32851)`

难道是：

mac本地只能运行单个gunicorn？的单个线程？

flask gunicorn [ERROR] Connection in use 0.0.0.0

flask mac gunicorn [ERROR] Connection in use 0.0.0.0

去看之前自己的贴子：

［已解决］运行gunicorn失败：[ERROR] Connection in use 127.0.0.1 8080 – 在路上

先再去确认进程：

1 2	`➜ xxxRobotDemoServer git:(master) ✗ ps aux \| grep` `32581` `crifan` `60599` `0.0` `0.0` `4276968` `892` `s007 S+` `4:00PM` `0:00.00` `grep` `--color=auto` `--exclude-dir=.bzr` `--exclude-dir=CVS` `--exclude-dir=.git` `--exclude-dir=.hg` `--exclude-dir=.svn` `32581`

没有。

➜  xxxRobotDemoServer git:(master) ✗ netstat -tulpn
netstat: n: unknown or uninstrumented protocol
➜  xxxRobotDemoServer git:(master) ✗ lsof -i:32581
➜  xxxRobotDemoServer git:(master) ✗

还是没有。

去搜gunicorn，结果还真的发现很多：

➜  xxxRobotDemoServer git:(master) ✗ ps -ax | grep gunicorn
??         0:01.55 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.08 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.33 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.26 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.59 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.35 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.35 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.24 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.50 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
??         0:13.47 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/python3.6 /Users/crifan/.local/share/virtualenvs/xxxRobotDemoServer-SCpLPEyZ/bin/gunicorn -c conf/gunicorn/gunicorn_config.py app:app
ttys007    0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn gunicorn
➜  xxxRobotDemoServer git:(master) ✗

彻底杀掉：

➜  xxxRobotDemoServer git:(master) ✗ kill -9 57904 59863 59864 59865 59866
➜  xxxRobotDemoServer git:(master) ✗ kill -9 59867 59868 59869 59870 59871
kill: kill 59867 failed: no such process
kill: kill 59868 failed: no such process
kill: kill 59869 failed: no such process
kill: kill 59870 failed: no such process
kill: kill 59871 failed: no such process
 
60759 ttys007    0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn gunicorn

再彻底保证

supervisor和gunicorn都没有进程了：

➜  xxxRobotDemoServer git:(master) ✗ ps -ax | grep gunicorn                
60759 ttys007    0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn gunicorn
➜  xxxRobotDemoServer git:(master) ✗ ps aux | grep gunicorn
crifan           60773   0.0  0.0  4276968    896 s007  S+    4:04PM   0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn gunicorn
➜  xxxRobotDemoServer git:(master) ✗ ps aux | grep supervisor 
crifan           60783   0.0  0.0  4286184    924 s007  S+    4:04PM   0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn supervisor
crifan           60541   0.0  0.0  4309536   1576   ??  Ss    3:57PM   0:00.11 /usr/bin/python /Users/crifan/Library/Python/2.7/bin/supervisord -c conf/supervisor/supervisord_local.conf
➜  xxxRobotDemoServer git:(master) ✗ kill -9 60541
➜  xxxRobotDemoServer git:(master) ✗ ps aux | grep supervisor
crifan           60804   0.0  0.0  4276968    648 s007  R+    4:04PM   0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn supervisor
➜  xxxRobotDemoServer git:(master) ✗ ps aux | grep gunicorn  
crifan           60814   0.0  0.0  4275944    800 s007  R+    4:04PM   0:00.00 grep --color=auto --exclude-dir=.bzr --exclude-dir=CVS --exclude-dir=.git --exclude-dir=.hg --exclude-dir=.svn gunicorn
➜  xxxRobotDemoServer git:(master) ✗

然后再去运行：

终于可以正常启动了：

➜  xxxRobotDemoServer git:(master) ✗ supervisord -c conf/supervisor/supervisord_local.conf 
Unlinking stale socket /var/run/supervisor.sock
➜  xxxRobotDemoServer git:(master) ✗ supervisorctl status
robotDemo                        RUNNING   pid 60839, uptime 0:00:06

【总结】

此处Mac本地用gunicorn和supervisor去部署和运行Flask的app时：

1	`supervisord -c conf/supervisor/supervisord_local.conf`

有时候可以正常运行，有时候又不行。

最后发现是：

虽然通过：

1 2	`ps` `aux \|` `grep` `32851`

去排除了还有在运行的(gunicorn的)端口

以及：

1	`ps` `aux \|` `grep` `supervisor`

和supervisor了，但是实际上通过：

1	`ps` `-ax \|` `grep` `gunicorn`

发现还是有正在运行的gunicorn的进程的

所以，此处对于gunicorn的log提示的错误：

[ERROR] Connection in use: (‘0.0.0.0’, 32851)

要找到全部的，当前还在运行的进程：

ps aux | grep 32851
ps
aux
 | grep gunicorn

以及supervisor：

1 2	`ps` `aux \|` `grep` `supervisor`

看到进程号后，再去完全干掉这些进程：

1	`kill` `-9 xxx`

然后再去重新启动supervisord：

1	`supervisord -c conf/supervisor/supervisord_local.conf`

就可以了正常接着用supervisorctl去管理了：

supervisorctl status
supervisorctl stop all
supervisorctl reload

等等。

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