Re: check script

[Gerrit Pape <pape@smarden.org>]

On Mon, Mar 12, 2007 at 02:44:40PM +0000, Jorge Almeida wrote:
> I ran socklog-conf and it created a file /etc/sv/socklog-unix/check that
> looks like a run script:
> 	#!/bin/sh
> 	exec 2>/dev/null
> 	exec socklog-check unix /dev/log

> Can someone explain what is the purpose of /etc/sv/socklog-unix/check?

See http://smarden.org/runit/sv.8.html

It's run by 'sv start|restart|force-restart|check' and 'sv -v up'
to check whether the service is up and functional, and not only the
service daemon started.  Here it checks whether a program is listening
on /dev/log.

The ./check script is optional, and good for service dependencies.  For
services that run service daemons that use syslog() to write log
messages, 'sv start socklog-unix || exit' should be added to the run
script, to make sure that no log messages are lost on bootup because the
service daemon calls syslog() before the socklog-unix service actually
is listening on /dev/log.

HTH, Gerrit.