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posted by janrinok on Tuesday March 18 2014, @09:51PM   Printer-friendly
from the not-everyone-will-be-happy dept.

elias writes:

"A very public and sometimes acrimonious dispute in the Debian ecosystem about upstart versus systemd has been settled in favour of systemd. Some go as far as to brand it a new era after the Linux civil war [Beware popups].

We also had an asksoylentnews question on what the fuzz was all about. But what can upstart contribute to systemd now the war is over, or will it simply be a technology that we remember fondly, but do not see any more in a few years time?"

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  • (Score: 2) by Grishnakh on Wednesday March 19 2014, @04:05PM

    by Grishnakh (2831) on Wednesday March 19 2014, @04:05PM (#18594)

    This has nothing to do with GUI vs. CLI. It has to do with a service manager that actually knows the state of various services and continuously monitors them. sysvinit doesn't really do this; all it does is kick off a shell script with a command ("start", "stop", "restart", etc.). It doesn't actually know if a service is still running or not, if the process has died, or anything except what that shell script returns when the service is (re)started.

    Would using a different language (compiled) improve anything?

    The idea of needing a language to run services is rather laughable. The only reason it was done with sysvinit is because it's an easy hack. systemd doesn't use a language, it uses a simple description file (basically an INI file). The management daemon does everything internally.

    When your programs save their state and configuration in files, do they need to be in a particular language? No, of course not. Go look at your .rc files sometime. The idea of using a language to tell a program what to do is utterly ridiculous; it only needs a configuration file.

    Tightly integrating all those parts together sounds spooky.

    So I guess you think it's "spooky" that Linux's kernel is tightly integrated with its device drivers, right? Or that Gnome or KDE has many tightly integrated parts? What OS do you use anyway? It's obviously not any conventional Linux distro.

    What if someone wants to fork a part of it?

    Then they can fork it. What's the problem? Big projects have been forked before (XFree86, LibreOffice), and systemd is much smaller than these.

    >Imagine if KDE swallowed Xorg and they became one project?

    Why on earth would they do that? That doesn't even make any sense.

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  • (Score: 2) by tibman on Wednesday March 19 2014, @07:12PM

    by tibman (134) Subscriber Badge on Wednesday March 19 2014, @07:12PM (#18656)

    It has to do with a service manager that actually knows the state of various services and continuously monitors them. sysvinit doesn't really do this;
    You're looking for rc-status. It shows you each service and its current state. Similar to if you run the service script with status at the end. Like "/etc/init.d/apache2 status".

    Though a bit of a text blob, here is actual output (butchered to fit) from rc-status where i've manually killed mysql. Mysql is reported as "crashed". This is a good cli representation of my current running services and their state.

    Runlevel: default
    sshd [ started ]
    dhcpcd [ started ]
    net.eth0 [ started ]
    netmount [ started ]
    ntpd [ started ]
    vixie-cron [ started ]
    local [ started ]
    Dynamic Runlevel: hotplugged
    Dynamic Runlevel: needed
    Dynamic Runlevel: manual
    mysql [ crashed ]
    apache2 [ started ]

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