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Diffstat (limited to 'doc/why.html')
-rw-r--r-- | doc/why.html | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/doc/why.html b/doc/why.html index ccef157..b737c89 100644 --- a/doc/why.html +++ b/doc/why.html @@ -25,7 +25,7 @@ <a href="//skarnet.org/software/s6/">s6</a>, <a href="http://smarden.org/runit/">runit</a>, <a href="http://b0llix.net/perp/">perp</a> or -<a href="http://cr.yp.to/daemontools.html">daemontools</a> +<a href="https://cr.yp.to/daemontools.html">daemontools</a> define a <em>service</em> as a long-lived process, a.k.a daemon. They provide tools to run the daemon in a reproducible way in a controlled environment and keep it alive if it dies; @@ -110,7 +110,7 @@ that still favor simplicity. Among them, for instance: </p> <ul> - <li> <a href="http://savannah.nongnu.org/projects/sysvinit">sysvinit</a>, + <li> <a href="https://savannah.nongnu.org/projects/sysvinit">sysvinit</a>, the historical GNU/Linux init system, and its companion set of <tt>/etc/rc.d</tt> init scripts that some distributions like to call <tt>sysv-rc</tt>. Note that sysvinit <em>does</em> have @@ -174,14 +174,15 @@ a joke. </p> <ul> - <li> <a href="http://upstart.ubuntu.com/">Upstart</a> was the first -one. On the front page, in the "feature highlights" section: -"Tasks and Services are started and stopped -by events. Events are generated as tasks and services are started -and stopped." Do you understand what that means? I don't. Also, -Upstart was the first system that used <tt>ptrace</tt> on the -processes it spawned in order to keep track of their forks. If -you don't know what that means: it was pure insanity. </li> + <li> <a href="https://upstart.ubuntu.com/">Upstart</a> was the first +one. The <em>concepts</em> in Upstart are actually pretty good: in +theory, it's a decent event-based service manager. Unfortunately, the +<em>implementation</em> is less than ideal. For instance, the service +file format is full of adhocisms breaking the principle of least surprise. +But most importantly, Upstart was the first system that used <tt>ptrace</tt> +on the processes it spawned in order to keep track of their forks. If +you don't know what that means: it's complete insanity, using a debug +feature in prodution, with heavy impact on security and efficiency. </li> <li> <a href="https://en.wikipedia.org/wiki/Launchd">launchd</a>, Darwin's init and service manager. The wikipedia page (linked here because Apple doesn't see fit to provide a documentation page for @@ -192,7 +193,7 @@ has to link in a XML parsing library, and it communicates with process 1 via a Mach-specific IPC mechanism. Is this the sleek, elegant design that Apple is usually known for? Stick to selling iPhones, guys. </li> - <li> <a href="http://www.freedesktop.org/wiki/Software/systemd/">systemd</a>, + <li> <a href="https://www.freedesktop.org/wiki/Software/systemd/">systemd</a>, the main protagonist (or antagonist) in the "init wars". It has the same problems as launchd, up by an order of magnitude; <a href="//skarnet.org/software/systemd.html">here is why</a>. |