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Re: If Linux Is About Choice, Why Then ...

From Mart van de Wege <mvdwege@gmail.com>
Newsgroups linux.debian.user
Subject Re: If Linux Is About Choice, Why Then ...
Date 2017-04-08 15:20 +0200
Message-ID <ttYrv-5IU-9@gated-at.bofh.it> (permalink)
References <ttH7k-2Ox-11@gated-at.bofh.it> <ttH7k-2Ox-9@gated-at.bofh.it> <ttNmq-76Q-23@gated-at.bofh.it> <ttQNj-YJ-3@gated-at.bofh.it> <ttSP7-2eC-7@gated-at.bofh.it>
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<tomas@tuxteam.de> writes:

>
> What systemd brings (mainly[1]) to the table is the decoupling of
> different "parts" of init: just imagine you have one service (let's
> say a web server) which depends on some other thing (say a file
> system being present via ummm... NFS, but it could be a RAID or a
> memory stick, you get the idea). With a SysV init you can't express
> that: you would have to script it explicitly. With systemd you
> can express that the web server is only to be started once that
> file system appears.
>
> So I'd rather say systemd is an adaptation to a much more volatile
> hardware landscape (which previously was only known in big iron)
> comming to the masses these days (just think USB). It corresponds
> to a more "dynamic" configuration.
>
> There are, of course alternative ways to skin the cat.
>
> Note that I'm a decided systemd opponent, and that might shine
> through the above. Feel free to correct any misrepresentation.
>
You've been perfectly fair. Would that all opponents did so.

As Nicolas said, systemd's main advantage is that it keeps better track
of what exactly it launches. Not only can it keep track of subprocesses
launched by the main process, it can also use that knowledge to manage
their resources, giving the sysadmin the power to constrain a service so
that it never eats up all system resources.

Or, by putting it in a separate scope, it can separate processes from
the user session that started them, making clear the difference between a
rogue process that should have died on logout, and a user service that
should persist across sessions.

The bad news on that last one is that it triggered another flamewar, as
the default chosen (kill all processes on user session end) was rather
unfriendly to programs like tmux and screen.

Mart

-- 
"We will need a longer wall when the revolution comes."
    --- AJS, quoting an uncertain source.

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Thread

If Linux Is About Choice, Why Then ... David Niklas <doark@mail.com> - 2017-04-07 20:50 +0200
  Re: If Linux Is About Choice, Why Then ... David Niklas <doark@mail.com> - 2017-04-07 22:10 +0200
  Re: If Linux Is About Choice, Why Then ... Patrick Bartek <nemommxiv@gmail.com> - 2017-04-08 03:30 +0200
    Re: If Linux Is About Choice, Why Then ... Richard Owlett <rowlett@cloud85.net> - 2017-04-08 07:10 +0200
      Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-08 09:20 +0200
        Re: If Linux Is About Choice, Why Then ... Nicolas George <george@nsup.org> - 2017-04-08 11:10 +0200
          Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-08 22:30 +0200
        Re: If Linux Is About Choice, Why Then ... Martin Read <zen75502@zen.co.uk> - 2017-04-08 11:50 +0200
          Re: If Linux Is About Choice, Why Then ... Nicolas George <george@nsup.org> - 2017-04-08 12:00 +0200
            Re: If Linux Is About Choice, Why Then ... The Wanderer <wanderer@fastmail.fm> - 2017-04-08 13:00 +0200
            Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-08 22:40 +0200
        Re: If Linux Is About Choice, Why Then ... Mart van de Wege <mvdwege@gmail.com> - 2017-04-08 15:20 +0200
        Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-09 01:30 +0200
          Re: If Linux Is About Choice, Why Then ... Joe <joe@jretrading.com> - 2017-04-09 09:50 +0200
            Re: If Linux Is About Choice, Why Then ... Greg Wooledge <wooledg@eeg.ccf.org> - 2017-04-10 15:40 +0200
              Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-10 16:10 +0200
                Re: If Linux Is About Choice, Why Then ... Nicolas George <george@nsup.org> - 2017-04-10 16:20 +0200
                Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-10 16:30 +0200
                Re: If Linux Is About Choice, Why Then ... Nicolas George <george@nsup.org> - 2017-04-10 16:40 +0200
                Re: If Linux Is About Choice, Why Then ... tomas@tuxteam.de - 2017-04-10 21:10 +0200
                Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-11 02:20 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-10 23:30 +0200
                Re: If Linux Is About Choice, Why Then ... deloptes <deloptes@gmail.com> - 2017-04-10 23:40 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-11 16:40 +0200
                Re: If Linux Is About Choice, Why Then ... David Wright <deblis@lionunicorn.co.uk> - 2017-04-12 17:40 +0200
                Re: If Linux Is About Choice, Why Then ... David Wright <deblis@lionunicorn.co.uk> - 2017-04-12 17:30 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-12 18:50 +0200
                Re: If Linux Is About Choice, Why Then ... David Wright <deblis@lionunicorn.co.uk> - 2017-04-12 21:50 +0200
                Re: If Linux Is About Choice, Why Then ... Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-13 00:00 +0200
                Re: If Linux Is About Choice, Why Then ... Ric Moore <wayward4now@gmail.com> - 2017-04-12 22:50 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-13 00:50 +0200
                Re: If Linux Is About Choice, Why Then ... Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-13 02:20 +0200
                Re: If Linux Is About Choice, Why Then ... Ric Moore <wayward4now@gmail.com> - 2017-04-13 08:50 +0200
                Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-13 11:00 +0200
                Re: If Linux Is About Choice, Why Then ... Mart van de Wege <mvdwege@gmail.com> - 2017-04-12 22:50 +0200
                Re: If Linux Is About Choice, Why Then ... Ric Moore <wayward4now@gmail.com> - 2017-04-12 23:20 +0200
                Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-12 23:20 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-13 01:20 +0200
                Re: If Linux Is About Choice, Why Then ... Nicholas Geovanis <nickgeovanis@gmail.com> - 2017-04-13 02:00 +0200
                Re: If Linux Is About Choice, Why Then ... Mart van de Wege <mvdwege@gmail.com> - 2017-04-12 22:50 +0200
                Re: If Linux Is About Choice, Why Then ... David Wright <deblis@lionunicorn.co.uk> - 2017-04-13 01:00 +0200
                Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-11 02:20 +0200
              Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-11 02:10 +0200
                Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-11 05:40 +0200
              Re: If Linux Is About Choice, Why Then ... Ric Moore <wayward4now@gmail.com> - 2017-04-11 03:40 +0200
                Re: If Linux Is About Choice, Why Then ... Miles Fidelman <mfidelman@meetinghouse.net> - 2017-04-11 05:10 +0200
          Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-09 12:30 +0200
            Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-09 20:10 +0200
      Re: If Linux Is About Choice, Why Then ... Ric Moore <wayward4now@gmail.com> - 2017-04-11 03:10 +0200
        Re: If Linux Is About Choice, Why Then ... Richard Owlett <rowlett@cloud85.net> - 2017-04-11 15:00 +0200
          Re: If Linux Is About Choice, Why Then ... Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-11 15:20 +0200
            Re: If Linux Is About Choice, Why Then ... Richard Owlett <rowlett@cloud85.net> - 2017-04-11 17:10 +0200
  Re: If Linux Is About Choice, Why Then ... Michael Fothergill <michael.fothergill@gmail.com> - 2017-04-09 17:50 +0200
    Re: If Linux Is About Choice, Why Then ... Patrick Bartek <nemommxiv@gmail.com> - 2017-04-09 22:20 +0200
      Re: If Linux Is About Choice, Why Then ... Miles Fidelman <mfidelman@meetinghouse.net> - 2017-04-09 23:50 +0200
        Re: If Linux Is About Choice, Why Then ... Lisi Reisz <lisi.reisz@gmail.com> - 2017-04-10 00:20 +0200
        Re: If Linux Is About Choice, Why Then ... Patrick Bartek <nemommxiv@gmail.com> - 2017-04-10 08:10 +0200
          Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-10 09:40 +0200
          Re: If Linux Is About Choice, Why Then ... Miles Fidelman <mfidelman@meetinghouse.net> - 2017-04-10 16:30 +0200
          Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-12 11:40 +0200
            Re: If Linux Is About Choice, Why Then ... Patrick Bartek <nemommxiv@gmail.com> - 2017-04-12 18:20 +0200
              Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-12 23:10 +0200
                Re: If Linux Is About Choice, Why Then ... Reco <recoverym4n@gmail.com> - 2017-04-13 17:50 +0200
                Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-13 19:40 +0200
                Re: If Linux Is About Choice, Why Then ... Reco <recoverym4n@gmail.com> - 2017-04-14 14:00 +0200
                Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-17 23:40 +0200
                Re: If Linux Is About Choice, Why Then ... Reco <recoverym4n@gmail.com> - 2017-04-18 16:40 +0200
                Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-18 17:10 +0200
                Re: If Linux Is About Choice, Why Then ... Gene Heskett <gheskett@shentel.net> - 2017-04-18 17:50 +0200
                Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-20 02:20 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-21 16:40 +0200
                Re: If Linux Is About Choice, Why Then ... Reco <recoverym4n@gmail.com> - 2017-04-18 18:50 +0200
                Re: If Linux Is About Choice, Why Then ... <tomas@tuxteam.de> - 2017-04-20 12:00 +0200
                Re: If Linux Is About Choice, Why Then ... Jonathan Dowland <jmtd@debian.org> - 2017-04-20 12:00 +0200
                Debian contributor Register of Interests (was Re: If Linux Is About  Choice, Why Then ...) Jonathan Dowland <jmtd@debian.org> - 2017-05-09 17:00 +0200
                Re: Debian contributor Register of Interests (was Re: If Linux Is  About Choice, Why Then ...) <tomas@tuxteam.de> - 2017-05-09 21:10 +0200
                Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-18 17:40 +0200
                Re: If Linux Is About Choice, Why Then ... Ben Caradoc-Davies <ben@transient.nz> - 2017-04-18 23:30 +0200
      Re: If Linux Is About Choice, Why Then ... Michael Fothergill <michael.fothergill@gmail.com> - 2017-04-11 18:10 +0200
  Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-13 03:10 +0200
    Re: If Linux Is About Choice, Why Then ... Joel Rees <joel.rees@gmail.com> - 2017-04-13 03:40 +0200
      Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-13 11:00 +0200
    Re: If Linux Is About Choice, Why Then ... David Wright <deblis@lionunicorn.co.uk> - 2017-04-13 04:20 +0200
      Re: If Linux Is About Choice, Why Then ... Joe <joe@jretrading.com> - 2017-04-13 09:20 +0200
    Re: If Linux Is About Choice, Why Then ... Catherine Gramze <rhiamom@mac.com> - 2017-04-13 04:20 +0200
      Re: If Linux Is About Choice, Why Then ... GiaThnYgeia <GiaThnYgeia@openmailbox.org> - 2017-04-13 11:30 +0200
        Re: If Linux Is About Choice, Why Then ... Catherine Gramze <rhiamom@mac.com> - 2017-04-13 17:20 +0200

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