Re: upstart: please update to latest upstream version

[Goswin von Brederlow <goswin-v-b@web.de>]

Vincent Bernat <bernat@debian.org> writes:

> OoO Vers  la fin de l'après-midi  du dimanche 11 mars  2012, vers 16:14,
> Fernando Lemos <fernandotcl@gmail.com> disait :
>
>>> Maybe we could  have an intermediate goal to patch any  daemon to add an
>>> option  to not  fork on  start.  If  any daemon  can be  started without
>>> forking, it seems  easy to start/stop them without  cgroups.  This would
>>> allow to generate a sysvinit  script from systemd service description. I
>>> don't  know  any daemon  that  does  not have  a  flag  to  not fork  on
>>> start. The number of daemons to patch may be low.
>>> 
>>> This will not be  as clean as using cgroups, but it  won't be worst than
>>> the actual situation.
>
>> I don't quite understand the problem you're trying to solve. Both
>> upstart and systemd already handle cases where the daemon doesn't have
>> the option of not forking.
>
> Yes,  but systemd  relies on  cgroups which  are not  portable.   If all
> daemons were able to not fork,  it would be easier to convert a .service
> file to a classic init.d  script and therefore use systemd (for example)
> as default with Linux and sysvinit with autogenerated files on kFreeBSD.

That would actually make things more difficult since then you have to
add some delay into the sysvinit files to wait for the daemon to become
ready before the init.d script returns.

The only thing that would benefit would be to run systemd on kFreeBSD
without the cgroup mechanism. No forking so no need to trace fork()s.

MfG
        Goswin