Yeah Xen 3.x is what you want.-Ezra On Feb 9, 2007, at 12:52 PM, Raul wrote: > > Ezra! Thanks for the follow up! I was just looking at the > xensource.com > site and found a somewhat buried Xen 3.0 that is open source and > doesn't > have the limitations of the three options on the home page. Is > this the > version I should be looking at? > > Raul > > > ----- Original Message ----- > From: "Ezra Zygmuntowicz" <[EMAIL PROTECTED]> > To: <rubyonrails-deployment@googlegroups.com> > Sent: Friday, February 09, 2007 12:44 PM > Subject: [Rails-deploy] Re: OpenVZ versus Xen or others > > >> >> Raul- >> >> I'm not sure what makes you think you need the commercial Xen for >> anything you mention. We run the open source Xen on boxes with 16Gig+ >> Ram and 4 processor cores. There is no limitation to the open source >> Xen afaik it can easily address 64Gigs of ram and many processors. >> >> -Ezra >> >> >> On Feb 9, 2007, at 9:26 AM, Raul wrote: >> >>> >>> OK thanks everyone! I actually got CentOS 4.4 running flawless on >>> one of my >>> servers and everything looked great. Then I followed the OpenVZ >>> install >>> instructions and it worked fine. I have 3 VPS's running on this >>> machine. >>> And then, suddenly remembering what a linux noob I am, I wondered >>> "What >>> now?". :) >>> >>> I could see that I have 3 vps each with their own IPs etc but >>> couldn't >>> figure out how I was then going to install my apps on each one >>> etc. I guess >>> I really gotta get my head around linux before anything else. >>> >>> It sounds like I'll be trying XenExpress to see how it works and >>> determine >>> if I'll need to be buying Xen commercial to go forward (if I use >>> Xen I need >>> the multiprocessor and 16gb ram support). When you get right down >>> to it I >>> really just want Apache or Nginx running with as many mongrels >>> behind it as >>> reasonable. I did set up a successful development server on >>> Windows with >>> Apache 2.2 and 5 mongrel services that seems to run fine, but I >>> understand >>> that for large scale performance of Rails and MySQL (and the >>> ability ot >>> automate deployment with Capistrano) that I'd be better off to go >>> linux. >>> Not to mention that I'll need about $7000 in Microsoft licenses to >>> go the >>> Windows route!! >>> >>> Thanks again, I'll keep pushing on and report back as I figure >>> things out. >>> >>> Appreciated! >>> >>> Raul >>> >>> >>> ----- Original Message ----- >>> From: "Paul Stadig" <[EMAIL PROTECTED]> >>> To: "Deploying Rails" <rubyonrails-deployment@googlegroups.com> >>> Sent: Friday, February 09, 2007 4:01 AM >>> Subject: [Rails-deploy] Re: OpenVZ versus Xen or others >>> >>> >>>> >>>> I've had experience with both OpenVZ and Xen on with different >>>> hosting >>>> companies. The OpenVZ server we had with vpslink.com just would not >>>> install Oracle XE. It was a problem with swap memory. The VPS at >>>> vsplink didn't have any, and even though it had plenty of memory >>>> Oracle would just crap out during install. I'm not sure if this is >>>> related to some limitation with OpenVZ, but most Xen hosts I've >>>> seen >>>> give you some swap, too. I even tried enabling my own swap, but it >>>> just wouldn't work. >>>> >>>> My problems may have had more to do with the suckiness of Oracle >>>> than >>>> anything else. Their install script for XE just directs error >>>> messages to /dev/null, so I spent many hours trying to figure >>>> out why >>>> the Oracle install "completed successfully" but was broken when I >>>> tried to use it. >>>> >>>> You've been warned. >>>> >>>> >>>> Paul >>>> >>>> On Feb 8, 11:52 pm, Robby Russell <[EMAIL PROTECTED]> >>>> wrote: >>>>> Ezra Zygmuntowicz wrote: >>>>> >>>>>> On Feb 8, 2007, at 7:30 PM, Robby Russell wrote: >>>>> >>>>>>> Raul wrote: >>>>>>>> Hi again. All the great assistance so far has moved me >>>>>>>> along. I'm >>>>>>>> still a Linux noob but I've settled on CentOS 4.4 and have it >>>>>>>> up and >>>>>>>> running on a test server right now. I'll be testing two >>>>>>>> scenarios: one >>>>>>>> with Apache 2.2 and mod_proxy_balancer in front of a mongrel >>>>>>>> cluster, >>>>>>>> and another with NGINX in front of a mongrel cluster. >>>>> >>>>>>>> Remeber I have 3 machines with dual, dual-core Xeons and >>>>>>>> 16gb of >>>>>>>> ram per >>>>>>>> server and I want to maximize the performance, 146gb of >>>>>>>> storage on >>>>>>>> two >>>>>>>> and a 73gb mirror with a 600gb raid 5 on the last one (I had >>>>>>>> intended to >>>>>>>> use the raid5 for the mySQL database). So I've looked into >>>>>>>> virtualization a bit to see what the benefits might be and it >>>>>>>> sounds >>>>>>>> great. Now I noticed that XenExpress only supports up to >>>>>>>> 4gb of >>>>>>>> ram and >>>>>>>> I understand there may be a mySQL 4gb per process limit as >>>>>>>> well. I >>>>>>>> could buy commercial Xen but I found OpenVZ (open source >>>>>>>> branch of >>>>>>>> Virtuozzo) and it sounds pretty good too. I understand that >>>>>>>> each >>>>>>>> solution accomplishes virtualization in different ways though >>>>>>>> so any >>>>>>>> guidance would be appreciated. >>>>>>> We've been testing both of these solutions out. Xen is pretty >>>>>>> rocking if >>>>>>> you want to manage several different distros and such. Each >>>>>>> virtual >>>>>>> server has it's own kernel running with Xen... which will take >>>>>>> more >>>>>>> resources on the server than OpenVZ. There is also the >>>>>>> overhead of >>>>>>> managing that many more servers/kernels. >>>>> >>>>>>> OpenVZ shares it's kernel with each of the virtual machines and >>>>>>> works >>>>>>> more like a FreeBSD jail. One of the cool features that really >>>>>>> caught >>>>>>> our attention as we've been investigating tools for our new >>>>>>> product is >>>>>>> live migrations! >>>>> >>>>>>> "Delivery of the checkpointing and live migration >>>>>>> functionality as >>>>>>> part >>>>>>> of OpenVZ brings a capability that no other open source >>>>>>> operating >>>>>>> system-level virtualization software offers. It allows system >>>>>>> administrators to move virtual servers between physical servers >>>>>>> without >>>>>>> end-user disruption or the need for costly storage capacity." >>>>> >>>>>>> http://openvz.org/news/announcements/kernel-2.6.9- >>>>>>> stable-20061114 >>>>> >>>>>> Ummm... Xen can do this too. >>>>> >>>>> "the more you know..." (tm) >>>>> >>>>> I'll look into that more. >>>>> >>>>> >>>>> >>>>>>> ..pretty cool, huh? >>>>> >>>>>> definitely cool, to be able to move a whole VM from one host to >>>>>> another without any down time is kick ass ;) >>>>> >>>>> Yeah, I'm also curious if OpenVZ will get accepted into the Linux >>>>> kernel >>>>> as mentioned here: >>>>> >>>>> *http://linux.slashdot.org/article.pl?sid=06/01/17/2251233 >>>>> * and...http://rubyurl.com/2na >>>>> >>>>> Since they both approach things _slighty_ different, it's a good >>>>> idea to >>>>> consider the benefits of both before making a decision. >>>>> >>>>> I really _want_ to go the openvz route with a project we're >>>>> working on, >>>>> but xen keeps coming back to surprise me. >>>>> >>>>> Robby >>>>> >>>>> -- >>>>> Robby Russellhttp://www.robbyonrails.com/http:// >>>>> www.planetargon.com/ >>>> >>>> >>>>> >>> >>> >>>> >> >> -- Ezra Zygmuntowicz >> -- Lead Rails Evangelist >> -- [EMAIL PROTECTED] >> -- Engine Yard, Serious Rails Hosting >> -- (866) 518-YARD (9273) >> >> >> >>> > > > > -- Ezra Zygmuntowicz -- Lead Rails Evangelist -- [EMAIL PROTECTED] -- Engine Yard, Serious Rails Hosting -- (866) 518-YARD (9273) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Deploying Rails" group. 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