Frequently Asked Questions¶
My program never starts and supervisor doesn’t indicate any error?
Make sure the
xbit is set on the executable file you’re using in the
command=line of your program section.
I am a software author and I want my program to behave differently when it’s running under supervisord. How can I tell if my program is running under supervisord?
Supervisor and its subprocesses share an environment variable
SUPERVISOR_ENABLED. When your program is run under supervisord, it can check for the presence of this environment variable to determine whether it is running as a supervisord subprocess.
My command works fine when I invoke it by hand from a shell prompt, but when I use the same command line in a supervisor program
command=section, the program fails mysteriously. Why?
This may be due to your process’ dependence on environment variable settings. See Subprocess Environment.
How can I make Supervisor restart a process that’s using “too much” memory automatically?
The Superlance package contains a console script that can be used as a Supervisor event listener named
memmonwhich helps with this task. It works on Linux and Mac OS X.