[systemd-devel] systemd "hangs" for several minutes on shutdown if it gets "service force-reload" request

[Andrey Borzenkov]

On Thu, Dec 2, 2010 at 3:12 PM, Gustavo Sverzut Barbieri
<barbieri at profusion.mobi> wrote:
> On Thursday, December 2, 2010, Andrey Borzenkov <arvidjaar at gmail.com> wrote:
>> On Thu, Dec 2, 2010 at 4:05 AM, Gustavo Sverzut Barbieri
>> <barbieri at profusion.mobi> wrote:
>>> On Wed, Dec 1, 2010 at 5:55 PM, Andrey Borzenkov <arvidjaar at gmail.com> wrote:
>>>> In Mandriva we are using {ifup,ifdown}.d script for callouts. One
>>>> package install script that - in both cases - does "service vnstat
>>>> force-reload". During shutdown it is causing interesting effect - this
>>>> request hangs which causing network service (that indirectly calls it)
>>>> to hang as well and be finally killed:
>>>
>>> Just out of curiosity, what vnstat does? Is it a daemon that keeps
>>> running or just run-once that accounts something in summary files?
>>
>> # Short-Description: lightweight network traffic monitor
>>
>> Yes, it is expected to start a daemon. But that's all I know about it :)
>
> This project should listen to changes itself... :)
>

I do not argue that; but this worked with sysvinit, this worked even
with systemd v11 and stopped to work in v15. So something has changed
and I'd like to understand whether this is intentional change or
regression.