Linked by Eugenia Loli on Sun 27th Aug 2006 08:18 UTC
Ubuntu, Kubuntu, Xubuntu Ubuntu is developing the "upstart", a replacement for the init daemon, the process spawned by the kernel that is responsible for starting, supervising and stopping all other processes on the system. The article compares upstart to Solaris SMF, Apple's launchd, and initng.
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RE: Too ambitious?
by evilrich on Sun 27th Aug 2006 18:54 UTC in reply to "Too ambitious?"
Member since:

> To what I understand, one of the long-term goals of
> Upstart is a remplacement for init and system
> services like at, cron and inetd. While I am
> perfectly aware that GNU's Not Unix, it seems to go
> against the Unix philosophy, which is "do one
> thing, do it well".

From my understanding, upstart does do one thing: to start and stop services in response to events.

I imagine events could include things like a particular time has occurred or a connection has been made to a particular network socket. That would be how it is able to replace at, cron and inetd as well.

Reply Parent Score: 3

RE[2]: Too ambitious?
by Wrawrat on Sun 27th Aug 2006 22:12 in reply to "RE: Too ambitious?"
Wrawrat Member since:

Actually, jobs would be the proper term, since upstart doesn't make a difference between a task and a service. Furthermore, it will need to supervise these jobs for automatic restarts, logging failures, etc. That's already two things to do...

Given its event-driven nature, I guess it makes sense to replace at and cron. Still, it will need to monitor time. As for inetd, it really depends whether they plan to replace the original version or xinetd... The former would be trivial, the latter would have some complications since it got many complex fetures like access controls (hosts, number of connections, redirection) that doesn't really belong in an init daemon, at least IMO.

All that dynamic & event-driven stuff seem to add a layer of complexity that could be hard to manage. We'll see where this is going to lead, but I'm still skeptical on its impact, especially in performance.

Reply Parent Score: 1