Now that we have (I'm going to curse it now, by writing this) a nice stable EC2 architecture and are getting a feel for what works and what doesn't, I'm looking at what else we can do with it.
The most immediate issue is that we have a single nginx server proxying both mongrel and fast-cgi. Stopping nginx means *everything* stops however briefly. I'd like a bit of separation here. Because EC2 uses Xen, we can't use another system-level virtualisation technology (no Xen-on-Xen and "its turtles all the way down" action possible) but anecdotally, it seems that UML or Linux V-Server OS virtualisation seems to be do-able with little performance penalty.
What's V-Server like to administer? Can the host OS continue with its own functionality, or is it all given over to running V-Server virtual instances?
Ideally, I'd like to add a basic virtual host which just runs its own nginx and fastcgi servers, and keep the rest of the existing server's functionality without having to V-Server this as well. We could buy an additional elastic IP for it, so it gets its own separate IP address.
On Mon, Feb 9, 2009 at 3:44 PM, Jay Caines-Gooby <j...@gooby.org> wrote: > Now that we have (I'm going to curse it now, by writing this) a nice > stable EC2 architecture and are getting a feel for what works and what > doesn't, I'm looking at what else we can do with it.
> The most immediate issue is that we have a single nginx server > proxying both mongrel and fast-cgi. Stopping nginx means *everything* > stops however briefly. I'd like a bit of separation here. Because EC2 > uses Xen, we can't use another system-level virtualisation technology > (no Xen-on-Xen and "its turtles all the way down" action possible) but > anecdotally, it seems that UML or Linux V-Server OS virtualisation > seems to be do-able with little performance penalty.
> What's V-Server like to administer? Can the host OS continue with its > own functionality, or is it all given over to running V-Server virtual > instances?
> Ideally, I'd like to add a basic virtual host which just runs its own > nginx and fastcgi servers, and keep the rest of the existing server's > functionality without having to V-Server this as well. We could buy an > additional elastic IP for it, so it gets its own separate IP address.
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Just when I'd begun to fear that the world has lost all mystery and wonder, I'd like to congratulate Mr. Caines-Gooby on the most fantastic 4 paragraphs I've read but not understood in ages.
Jay Caines-Gooby wrote: > Now that we have (I'm going to curse it now, by writing this) a nice > stable EC2 architecture and are getting a feel for what works and what > doesn't, I'm looking at what else we can do with it.
> The most immediate issue is that we have a single nginx server > proxying both mongrel and fast-cgi. Stopping nginx means *everything* > stops however briefly. I'd like a bit of separation here. Because EC2 > uses Xen, we can't use another system-level virtualisation technology > (no Xen-on-Xen and "its turtles all the way down" action possible) but > anecdotally, it seems that UML or Linux V-Server OS virtualisation > seems to be do-able with little performance penalty.
> What's V-Server like to administer? Can the host OS continue with its > own functionality, or is it all given over to running V-Server virtual > instances?
> Ideally, I'd like to add a basic virtual host which just runs its own > nginx and fastcgi servers, and keep the rest of the existing server's > functionality without having to V-Server this as well. We could buy an > additional elastic IP for it, so it gets its own separate IP address.
> Just when I'd begun to fear that the world has lost all mystery and > wonder, I'd like to congratulate Mr. Caines-Gooby on the most fantastic > 4 paragraphs I've read but not understood in ages.
> Tom Dussek; Simple Dolt
Glad I'm not the only thicky on the list who didn't understand it! :)
[mailto:bnmlist-boun...@brightonnewmedia.org] On Behalf Of Mat Walker Sent: 09 February 2009 16:05 To: Brighton New Media Subject: Re: [BNM] [OT] Re: UML or V-Server on EC2
On 9/2/09 16:01, Tom Dussek (Hotmail) wrote: > Just when I'd begun to fear that the world has lost all mystery and > wonder, I'd like to congratulate Mr. Caines-Gooby on the most > fantastic > 4 paragraphs I've read but not understood in ages.
> Tom Dussek; Simple Dolt
Glad I'm not the only thicky on the list who didn't understand it! :)
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On Mon, Feb 9, 2009 at 4:01 PM, Tom Dussek (Hotmail)
<tomdus...@hotmail.com> wrote: > Just when I'd begun to fear that the world has lost all mystery and > wonder, I'd like to congratulate Mr. Caines-Gooby on the most fantastic > 4 paragraphs I've read but not understood in ages.
I have a fat kitten. When I temporarily stun it, I want a bit of it to keep on purring. What technologies can I use to cut my fat kitten in half?
On Feb 09, 2009 at 16:01, Tom Dussek (Hotmail) praised the llamas by saying:
> Just when I'd begun to fear that the world has lost all mystery and > wonder, I'd like to congratulate Mr. Caines-Gooby on the most fantastic > 4 paragraphs I've read but not understood in ages.
Made perfect sense to me. I'm not sure if that says more about you or me. :S
-- David Pashley da...@davidpashley.com Nihil curo de ista tua stulta superstitione. --
J*sus, Jay! Are you some kind of kitten-stunning newbie?! What stunning format? Your cutting platform is...?!?! Level of purr required? Cutting laterally or...er...the other way? And which half? Ch*st, this list used to be for professionals. FTFM!!!!
Tom Dussek
Jay Caines-Gooby wrote: > On Mon, Feb 9, 2009 at 4:01 PM, Tom Dussek (Hotmail) > <tomdus...@hotmail.com> wrote: >> Just when I'd begun to fear that the world has lost all mystery and >> wonder, I'd like to congratulate Mr. Caines-Gooby on the most fantastic >> 4 paragraphs I've read but not understood in ages.
> I have a fat kitten. When I temporarily stun it, I want a bit of it to > keep on purring. What technologies can I use to cut my fat kitten in > half?
> Just when I'd begun to fear that the world has lost all mystery and > wonder, I'd like to congratulate Mr. Caines-Gooby on the most fantastic > 4 paragraphs I've read but not understood in ages.
> Tom Dussek; Simple Dolt
> Jay Caines-Gooby wrote: >> Now that we have (I'm going to curse it now, by writing this) a nice >> stable EC2 architecture and are getting a feel for what works and what >> doesn't, I'm looking at what else we can do with it.
>> The most immediate issue is that we have a single nginx server >> proxying both mongrel and fast-cgi. Stopping nginx means *everything* >> stops however briefly. I'd like a bit of separation here. Because EC2 >> uses Xen, we can't use another system-level virtualisation technology >> (no Xen-on-Xen and "its turtles all the way down" action possible) but >> anecdotally, it seems that UML or Linux V-Server OS virtualisation >> seems to be do-able with little performance penalty.
>> What's V-Server like to administer? Can the host OS continue with its >> own functionality, or is it all given over to running V-Server virtual >> instances?
>> Ideally, I'd like to add a basic virtual host which just runs its own >> nginx and fastcgi servers, and keep the rest of the existing server's >> functionality without having to V-Server this as well. We could buy an >> additional elastic IP for it, so it gets its own separate IP address.
The advantage you have over linux here is that you've got DTrace & ZFS. DTrace probes for mysql are in the pipeline, this will allow you to analyse what mysql is doing in realtime (queries etc) which should make troubleshooting & finding bottlenecks much easier. --
> The advantage you have over linux here is that you've got DTrace & ZFS. > DTrace probes for mysql are in the pipeline, this will allow you to > analyse what mysql is doing in realtime (queries etc) which should make > troubleshooting & finding bottlenecks much easier.
