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

[Koen Kooi]

Op 25 jan. 2014, om 15:06 heeft Colin Guthrie <gmane at colin.guthr.ie> het volgende geschreven:

> '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.
> 
> If we displayed a timeout clock here too, users would be more willing to
> wait.

To make matters worse, the cylon eye isn't displayed when you boot with 'quiet' in your kernel command line. 

regards,

Koen