Linux Process management Tools--supervisor

Introduced

Supervisord is a very useful process management tool implemented in Python.

Installation

Here with the source code

supervisor-3.1. 3. Tar . GZ tar -zxvf supervisor-3.1. 3. Tar . GZCD Supervisor-3.1. 3 sudo Install

To generate a default configuration file

echo_supervisord_conf >/etc/supervisord.conf  

Modifying the default configuration file

To access the Wenb interface, modify the Inet_http_server configuration

[Inet_http_server]  port=*:9001     ; here * indicates that other terminals can be accessed Supervisor Web interface username=  Username;  User name  password=password  ;  Password  

Command line control can be used

[Supervisorctl]serverurl=unix://tmp/supervisor.sock; Use a unix://URL for  a Unix Socketserverurl=http://127.0.0.1:9001; use a http://  URL to specify an inet Socket

Modify Process

[Program:test_http]command=python test_http.py501; Monitored process path directory=/home/admin/soft/supervisor-3.1.3before the implementation of the CD to the directory, generally do not have priority=1. The higher the number, the higher the priorityNumprocs=1; start several processes autostart=true; starts with the Supervisord start AutoRestart=trueAuto Restart: Of course we have to choose Startretries.=Ten; The maximum number of times to start failure exitcodes=0The normal exit code (that is, the exit code is not restarted at this time?) Pending confirmation) Stopsignal=Kill ; a signal used for killing a process stopwaitsecs=Ten; wait time before sending Sigkill Redirect_stderr=true; REDIRECT stderr to stdout

Here test_http.py is located in directory (/home/admin/soft/supervisor-3.1.3)

test_http.py

Import sys import basehttpserver from simplehttpserver import Simplehttprequesthandler handlerclass=Simplehttprequesthandler ServerClass=Basehttpserver.httpserver Protocol="http/1.0"    if__name__ = ="__main__":    ifsys.argv[1:]: Port=int(sys.argv[1])      Else: Port=8000server_address= ('10.125.24.105', Port) Handlerclass.protocol_version=Protocol httpd=ServerClass (server_address, handlerclass) SA=httpd.socket.getsockname () print"serving HTTP on", sa[0],"Port", sa[1],"..."Httpd.serve_forever ()

Start

sudo  Supervisord-c/etc/supervisord.conf

Management

Command Management

sudo supervisorctlstatus: View the currently running list of processes stop XXX: Stop a certain process (XXX), XXX for the value configured in [Program:theprogramname]. Start XXX: Start a process restart XXX: Restart a process stop Groupworker: Restart all processes that belong to the group named Groupworker (Start,restart same) Stop all, stop the whole process, Note: Start, restart, stop will not load the latest configuration file. 

Reload the configuration file

sudo  supervisorctl-c/etc/supervisord.conf

Interface Management

Linux Process management Tools--supervisor