问题：
在使用supervisor的时候报以下错误
unix:///tmp/supervisor.sock no such file原因：
supervisor默认的配置文件中将socket文件和pid守护进程生成在/tmp目录下，/tmp目录是缓存目录，Linux会根据不同的情况自动删除该目录下的文件，可查看/opt/supervisor/supervisord.conf文件
[unix_http_server]
file=/tmp/supervisor.sock ; the path to the socket file
[supervisord]
logfile=/tmp/supervisord.log ; main log file; default $CWD/supervisord.log
logfile_maxbytes=50MB ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=10 ; # of main logfile backups; 0 means none, default 10
loglevel=info ; log level; default info; others: debug,warn,trace
pidfile=/tmp/supervisord.pid ; supervisord pidfile; default supervisord.pid
nodaemon=false ; start in foreground if true; default false
minfds=1024 ; min. avail startup file descriptors; default 1024
minprocs=200 ; min. avail process descriptors;default 200
[supervisorctl]
serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL for a unix socket
解决方案:
修改配置文件中socket文件和pid守护进程生成的目录路径，打开/opt/supervisor/supervisord.conf文件，修改其中的路径，如下
[unix_http_server]
file=/var/run/supervisor.sock ; the path to the socket file
[supervisord]
logfile=/var/log/supervisord.log ; main log file; default $CWD/supervisord.log
logfile_maxbytes=50MB ; max main logfile bytes b4 rotation; default 50MB
logfile_backups=10 ; # of main logfile backups; 0 means none, default 10
loglevel=info ; log level; default info; others: debug,warn,trace
pidfile=/var/run/supervisord.pid ; supervisord pidfile; default supervisord.pid
nodaemon=false ; start in foreground if true; default false
minfds=1024 ; min. avail startup file descriptors; default 1024
minprocs=200 ; min. avail process descriptors;default 200
[supervisorctl]
serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket
修改后，保存并退出，然后更新配置文件
supervisorctl update修改权限：
sudo chmod 777 /var/run/
sudo chmod 777 /var/log/创建supervisor.sock
sudo touch /var/run/supervisor.sock
sudo chmod 777 /var/run/supervisor.sock
