Bug 6331 – daemontools init script needs time to startup

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Dominik Westner 2002-08-11 13:05:24 UTC]

as daemontools provide djbdns the startup script needs some time to startup and
provide these services.

As svscan starts in the background following services like ntpdate will get an
error as the dns service is not yet started.

my fix is to put a
sleep 3

in the startup funiction of daemontools

[Comment 1 SpanKY 2002-08-11 13:34:54 UTC]

See Bug 6332 for a better fix

*** This bug has been marked as a duplicate of 6332 ***

[Comment 2 Dominik Westner 2002-08-11 15:55:08 UTC]

6332 does not solve this problem.
For example if 6332 is not applied, ntpd will be started before svscan and ntpdate will 
fail.

If 6332 is applied, nptd will be started after svscan, but ntpdate will still fail, because 
djbdns stated through the daemontools will need some time to start up.

[Comment 3 Nick Hadaway 2002-08-15 18:09:16 UTC]

If you utilize an ip instead of a name (131.107.1.10 instead of time-
nw.nist.gov) for your ntpdate server, will that avoid the failing DNS lookup?

[Comment 4 Dominik Westner 2002-08-15 18:24:18 UTC]

mh, that's a work around, but not a fix. Especially it's not guaranteed that the ip addresses 
of ntp servers stay the same. 
I think the better work around is to put someting like sleep 2 in the svc startup script.

[Comment 5 Nick Hadaway 2002-10-30 20:12:29 UTC]

As I have not come up with a better answer... I will add this to the startup script.

Where should I put the "sleep 2" statement?  Should I put it in the depend()
function so the script sleeps while the "net" services start up?

[Comment 6 Dominik Westner 2002-10-31 01:50:36 UTC]

I have put it here:

start() {
    ebegin "Starting service scan ..." 
    PATH="/usr/bin:$PATH"
    cd /service
    start-stop-daemon --start --quiet --exec /usr/bin/svscan -- &
    echo $! > /var/run/svscan.pid
    eend $? 
    sleep 2
}   
    

[Comment 7 Jeremy Wohl 2002-11-25 19:18:14 UTC]

Can I suggest the runit (http://smarden.org/runit/) package and specifically 
the svwaitup utility?  Instead of arbitrary sleeps/stalls, you use the 
following in your ntpd script.

  # svwaitup /service/tinydns /service/dnscache

I assume DJB will integrate something similar, in future.  It's just a good 
idea.

[Comment 8 Andrei Ivanov 2003-01-15 02:11:35 UTC]

 * Installing the svscan startup file ...
cp: cannot create regular file `/var/tmp/portage/daemontools-0.76-
r2/temp//etc/init.d/svscan': No such file or directory
install: cannot stat `/var/tmp/portage/daemontools-0.76-
r2/temp//etc/init.d/svscan': No such file or directory

:(

Should I worry... ?

[Comment 9 Nick Hadaway 2003-01-15 02:36:35 UTC]

oops... sorry about that... i have fixed the ebuild.

[Comment 10 Martin Holzer (RETIRED) 2003-05-12 13:46:59 UTC]

depscan + rc script should do this :)