[systemd-devel] Allow stop jobs to be killed during shutdown

[Dominique Michel]

Le Sat, 25 Jan 2014 14:06:55 +0000,
Colin Guthrie <gmane at colin.guthr.ie> a écrit :

> 'Twas brillig, and Lennart Poettering at 24/01/14 17:53 did gyre and
> gimble:
> > On Fri, 24.01.14 18:45, Reindl Harald (h.reindl at thelounge.net)
> > wrote:
> > 
> >>>>>> However, something like that can never be the default, we need
> >>>>>> to give services the chance to shut down cleanly and in the
> >>>>>> right order.
> >>>>>
> >>>>> I didn't ask for any change to any default, I just asked for
> >>>>> users to be able to make the shutdown process proceed when
> >>>>> they have more information than systemd has about the chances
> >>>>> of success of some random stop job.
> >>>>>
> >>>>> Without that, what you *will* get is people pulling the
> >>>>> power plug which has a vastly greater chance of screwing up
> >>>>> the system than not waiting for a single stop job.
> >>>>
> >>>> Perhaps just displaying the timeout would be useful here.
> >>>
> >>> We do that. Michal's "eye of sauron" animation is shown as soon as
> >>> something blocks too long, and the name of the unit we are
> >>> waiting for is shown.
> >>
> >> but there is nothing saying how long the timeout remains
> >> "displaying the timeout" means a value in seconds
> > 
> > That delay is set to 5s.
> 
> What was meant here was that the *user* is not shown for how long the
> "cylon" animation will play before systemd gives up and gets
> aggressive.
> 
> So there is a 5s timeout before displaying that, but all it does is
> tell you how many jobs are waiting and not how long it's going to
> wait for them.
> 
> If the user sits and watches that animation for 20s they'll likely
> think "ahh well this is stuck" and yank the cord, not knowing that
> things will be done cleanly if they just wait another 10s.
I fully agree. At my work, 20s are already a lot of time when it is
time to go.

> 
> If we displayed a timeout clock here too, users would be more willing
> to wait.
It would also be nice to show which process systemd is waiting for,
together with something like
	Press Ctrl+C to abort and continue

Most important is the possibility to abort the wait and continue,
because I am sure some peoples I know will just think "What is this
f. s." and yank the cord anyway.

Dominique

> 
> Col
> 
>