Re: Service stuck at shutdown
On Wed 10 Nov 2021 at 22:18:07 (+0100), Erwan David wrote:
> Le 10/11/2021 à 20:01, Tixy a écrit :
> > On Wed, 2021-11-10 at 18:33 +0100, Erwan David wrote:
> > > Since some time, I always have to wait 1 min 30 at shut down because
> > > some service does not stop (for user erwan is said).
> > >
> > > How can I debug this, know which service is blocking the shutdown ?
> > Assuming you system is using systemd then look at the logs for the last
> > boot with:
> >
> > #journalctl -b-1
> >
> > and scroll to the end where you will see what was going on during
> > shutdown. Errors will likely be highlighted in red (they are for me).
> >
> > The times I've had hanging during shutdown is due to the network being
> > shut down before network filesystems are unmounted.
> >
> Thanks, for me the culprint is 'dconf worker' (I see it being killed
> with a 'timeout error') about 90s after preceding message.
>
> I do not know where it comes from, I have dconf-service installed as a
> dependency of many things, thus it is not removable. However I do not
> find any messages about dconf, and what does not work correctly.
>
> SO now the question is wtf is dconf doing, and how to
> correct it (and no I have no idea of how dconf works, and even what
> problem it is intended to solve.
A workaround that might shorten the wait, but only if you're confident
that there aren't processes that need that long to complete, is to edit
the line DefaultTimeoutStopSec=90s in /etc/systemd/system.conf to
something smaller.
Cheers,
David.
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