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Auteur: Didier Kryn
Datum:  
Aan: dng
Onderwerp: Re: [DNG] Detailed technical treatise of systemd
Le 05/11/2015 20:05, Rainer Weikusat a écrit :
> Didier Kryn <kryn@???> writes:
>> Le 03/11/2015 17:24, Rainer Weikusat a écrit :
>>> Didier Kryn <kryn@???> writes:
>>>>       I agree with you, and it was the first point in my mail, that the
>>>> servers should be able to cope with outages.
>>> That's not a matter of "should": They have to. Even if it's believed
>>> they're just using local IPC[*].
>>      Yes, but let's consider that, maybe, some do not.
> Well, yes, "sometimes, software has bugs".

>
> [...]
>
>> Let me explicite it:
>>
>>      - Encourage authors to make outage-aware servers, which can then
>> be started in parallel;
> Worrying about 'starting servers in parallell' only makes sense if
> there's a real-world situation where this demonstrably makes a relevant
> difference. And I very much doubt that --- that's just another imaginary
> sugar-coating supposed to help selling systemd to people who are not
> expected to understand the issue. As someone recently wrote,

>
>     Point remains: most of the "less-tech-savy" users will probably
>     not even know what systemd is, or what the fuss is all
>     about. It's all been seamless, without hitch. The OS boots and
>     gives them a GUI, done.

>
> IOW, without the systemd marketing barrage, most people had never
> noticed it as there are no user-visible difference, IOW, it's not an
> improvement for them.
>
>>      - Provide a supervisor able to handle dependencies for the
>> non-outage-aware, with a trivial readyness notification method.
> Can I have one which recites the Lord's prayer backwards prior to
> starting a server if I'm more attracted to other superstitions?

>


     Reciting prayers backwards is for if you take daemons in the sense 
of Devil, which is not the usual understanding. But you are free to do 
so: just make it a dependency. Not sure you'll find a ready-made package 
though; but we know you're able to do it yourself :-)


     Jokes apart, starting daemons in parallel is simply faster when you 
have several cores. I do care booting fast.


     Didier