常用命令
supervisorctl status 檢視狀態
supervisorctl reload 重新載入配置檔案
supervisorctl start all/ftp 啟動所有/指定的程式程序
supervisorctl stop all/frp 關閉所有/指定的程式程序
一.簡化後的supervisord.conf配置檔案內容:
[unix_http_server] file=/var/run/supervisor/supervisor.sock ; (the path to the socket file) [supervisord] logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log) logfile_maxbytes=50MB ; (max main logfile bytes b4 rotation;default 50MB) logfile_backups=10 ; (num of main logfile rotation backups;default 10) loglevel=info ; (log level;default info; others: debug,warn,trace) pidfile=/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) [rpcinterface:supervisor] supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface [supervisorctl] serverurl=unix:///var/run/supervisor/supervisor.sock ; use a unix:// URL for a unix socket [include] files = supervisor.d/*.conf
注意 所有需要用supervisor管理的服務放在/etc/supervisor.d/目錄下;
supervisor開機自啟
1、首先執行命令:systemctl is-enabled supervisord ,結果如下圖:提示尚未為supervisor配置開機啟動
2、在shell裡執行 vim /lib/systemd/system/supervisord.service 編輯開機啟動時執行的指令碼如下
[Unit] Description=Process Monitoring and Control Daemon After=rc-local.service [Service] Type=forking ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf RuntimeDirectory=supervisor RuntimeDirectoryMode=755 [Install] WantedBy=multi-user.target
注意:ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf 一定要這樣寫,supervisor安裝完預設會在/etc/supervisord.conf 產生
啟動程式
systemctl enable supervisord
驗證一下是否為開機啟動:
systemctl is-enabled supervisord
二. “supervisor.sock no such file”的解決方法
1:去/run/supervisor中touch一個supervisor.sock檔案 並chmod 777 supervisor.sock
2:kill 掉所有之前的supervisor程序
3:啟動supervisor
<!--啟動--> systemctl start supervisor supervisord -c /etc/supervisord.conf <!--關閉--> systemctl stop supervisor
重新啟動supervisor
三:Error: Cannot open an HTTP server: socket.error reported errno.ENOENT (2)
supervisord -c /etc/supervisord.conf 啟動時報錯
Error: Cannot open an HTTP server: socket.error reported errno.ENOENT (2)
For help, use /usr/bin/supervisord -h
原因,預設配置的目錄不存在, 手動建立一個就好了**mkdir /run/supervisor
**
四: Unlinking stale socket /tmp/supervisor、unix:/run/supervisor/supervisor.sock no such file
supervisor出現Unlinking stale socket /tmp/supervisor、unix:/run/supervisor/supervisor.sock no such file。遇到以上類似的問題,可以透過以下步驟得到解決。
1、修改配置檔案
vim supervisord.conf
這裡把所有的/tmp路徑改掉
/tmp/supervisor.sock 改成/var/run/supervisor.sock,
/tmp/supervisord.log 改成/var/log/supervisor.log,
/tmp/supervisord.pid 改成 /var/run/supervisor.pid 要不容易被linux自動清掉。
樣例如下:
[unix_http_server]
file=/var/run/supervisor/supervisor.sock ; the path to the socket file
[supervisord]
logfile=/var/log/supervisord.log ; main log file; default $CWD/supervisord.log
pidfile=var/run/supervisor/supervisord.pid ; supervisord pidfile; default supervisord.pid
[supervisorctl]
serverurl=unix:///run/supervisor/supervisor.sock ; use a unix:// URL for a unix socket
2、修改許可權
sudo chmod 777 -R /run
sudo chmod 777 -R /var
如果沒改,啟動可能會報錯 IOError: [Errno 13] Permission denied: ‘/var/log/supervisord.log’
sudo touch /var/run/supervisor/supervisor.sock
sudo chmod 777 /var/run/supervisor/supervisor.sock
sudo chmod 777 -R /var/run
4、新增supervisor.sock連結
unlink /var/run/supervisor/supervisor.sock
5、啟動supervisord
注意stop之前的例項或殺死程序。
supervisord
或者
supervisord -c /home/Nox/conf/nox/supervisord.conf
五:Exited too quickly (process log may have details)
使用supervisor監控程式檢視狀態總是報Exited too quickly (process log may have details)
報這個錯的原因很簡單,用supervisor監控程式,但是使用的是自己的方法啟動程式,那當然不會監控成功,正確的做法是用supervisor重啟。
六:unix:///run/supervisor/supervisor.sock refused connection
此時正確的做法是,應該重新指定配置檔案,這樣就能正確的生成一個sock檔案
supervisord -c /etc/supervisord.conf