Date: Mon, 21 May 2012 13:47:39 -0500 From: Jamie <jamie@geniegate.com> To: Dag-Erling Sm??rgrav <des@des.no> Cc: Jamie <jamie@geniegate.com>, Rick Macklem <rmacklem@uoguelph.ca>, Vincent Hoffman <vince@unsane.co.uk>, freebsd-current@freebsd.org, freebsd-chat@freebsd.org, Vance Siemens <vance.siemens@gmail.com> Subject: Re: FreeBSD 10 prognostication... Message-ID: <20120521184739.GA22790@mule.podro.com> In-Reply-To: <868vglud1e.fsf@ds4.des.no> References: <20120520170702.GY22790@mule.podro.com> <1120936952.633013.1337546532026.JavaMail.root@erie.cs.uoguelph.ca> <20120521035323.GZ22790@mule.podro.com> <868vglud1e.fsf@ds4.des.no>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, May 21, 2012 at 10:57:33AM +0200, Dag-Erling Sm??rgrav wrote: > No, they're not. VMWare, RHEV (KVM-based) etc. provide features such as > seamless migration of virtual machines from one physical machine to > another, automatic restart on a different physical server if one fails > etc. that simply aren't possible with jails; and there are certain > things you still can't run reliably / safely in jails - anything that > relies on SysV IPC, for instance, such as PostgreSQL. True about the SysV, and I mostly agree about automatic failover. But I think the FreeBSD jail system is still the better model for how I see these things being used (certainly the better *potential*). But yea, not "quite" cloud. When coupled with something like rsync, they *almost* do the job. And for a lot of the current "VPS" applications, they do the job. But lets suppose you want proper redundancy and partitioned environments, so, you put FreeBSD on a cloud, but partition your environments into jails. Now you have a cheap, low overhead way of doing logical partitioning and you still have a "cloud" with redundancy. Linux KVM has serious network issues, and overhead. (I use KVM a fair amount, it's OK for testing, but when under load, KVM-based linux hosting sucks for serious use) If the goal is to get FreeBSD uber popular, then turn the alphas on to the jail system. (or the pre-emptive swapping, or.. or.. or...) I don't believe it's about glitter as much as people say it is, at least, not anymore. I threw jails out there because I personally consider them to be the coolest part of FreeBSD. Jamie
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20120521184739.GA22790>