How to automatically respawn a process?

lucasbl3 · 06-11-2004, 02:55 PM

Hello guys, I am having a process which must be always online. That is, if it goes down it must be respawned as soon it is possible.
How can you accomplish this?
I´ve heard that you could do this with the inittab but apparently you can´t have much control over the respawning period. I am right about this? Could you alter this period?

Thanks a lot.

david_ross · 06-11-2004, 03:02 PM

Take a look at Daemontools:
http://cr.yp.to/daemontools.html

phlogistonjohn · 06-11-2004, 03:29 PM

A very simple way of doing it would be with a shell script in an infinite loop.

An example would be if your daemon was called foo, I'd write a script called run-foo.sh.

the contents would hold:

Code:

#!/bin/sh
while true; do foo "$@"; done

so evertime the "foo" process dies, "run-foo.sh" begins to execute again and then starts foo back up.

There are probably bunches of other ways to do it too.