Re: Respawn limit for runsv?

[Thomas Schwinge <schwinge-lists-skarnet.org-supervision@nic-nac-project.de>]

On Sun, Feb 13, 2005 at 01:42:01PM -0500, Charlie Brady wrote:
> On Sat, 12 Feb 2005, Lars Kellogg-Stedman wrote:
> > - The disk fills up, causing your X startup to fail.  But because of the 
> > continuous respawning, you can't log in on the console!

This has happened to me, too.  :-(
(And of course no telnetd, sshd or similar was running...)


> It would also be useful to have a mechanism to distinguish between a
> process dying in reponse to a request from runsv, and a program dying
> unexpectedly. Perhaps have "finish" and "unexpected_finish" scripts. I'd
> certainly like to have a mechanism to run a finish script if a service is
> taken down, but not if it just died unexpecedly. The "unexpected_finish"
> script could introduce the programmed delay you want, notify the admin,
> preserve any essential logs, etc.

I'd suggest to only have 'finish', but have it passed a) the information
how the process (was) terminated (i.e. either manually using svc,
runsvctrl, writing to 'SERVICE/supervise/control' or because of the
process's termination) and b) the process's exit-code.  This information
could be passed either using positional parapeters or via environment
variables.


Regards,
 Thomas