October 2012 - infrastructure - Fedora Mailing-Lists

by Matthew Miller

I launched a F17 instance in our Eucalyptus system. It works. (Awesome!) I have not done anything to try and break it. Let me know if I should. :) -- Matthew Miller ☁☁☁ Fedora Cloud Architect ☁☁☁ <mattdm(a)fedoraproject.org>

11 years, 6 months

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Meeting Agenda Item: Introduction Matthew Whittle

by Matt Whittle

Hi everyone, Here is a little about me. My name is Matthew Whittle and I currently work as a senior application developer at VSP (Vision Service Plan) - it is eye insurance. I have a lovely wife and no kids (yet!). We live in Sacramento California in the US and I heard about this project through someone at JBoss at the JavaOne conference in San Francisco. At my current work I develop backend services for our membership using Java and Websphere and for fun I develop games for the iPhone (I have about 8 out now). I have been using Fedora at home for about 5 years now. I joined this group because I have a desire to build a 3D operating system. By tomorrow. Just kidding. Yes I know that is a huge task but I thought I could start small by making a 3D desktop background... or maybe I should start even smaller. But at least you know my short and long term goals. My IRC handle I believe is MattWhCaUs (it is the nickname I used) (by the way, http://www.wikihow.com/Register-a-User-Name-on-Freenode lists IRC at http://webchat.freenode.com/ but it is really http://webchat.freenode.net/ Later on you can show me how to fix that myself!) Cool beans - looking forward to hearing from y'all. Cheers, Matthew Whittle

11 years, 6 months

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Introduction

by Onalenna Junior Makhura

Hi, I have been a member of this list for a few years now but due to some constraints I have not been able to actively participate. I would now like to start be active in Fedora development. I have been using fedora as my 1st choice OS since Fedora Core 6. I would be very glad to have someone who can show me the ropes. Regards, Onalenna Junior Makhura

11 years, 6 months

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Curiosity FedoraHosted

by Frank Murphy

Couldn't see this in Infra SOP What criteria governs the Upgrading of major compenents of FedoraHosted FedoraN+, Trac, *sql*, the underlying infra, not the hosted projects themselves. -- Regards, Frank "Jack of all, fubars"

11 years, 6 months

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cloud disk benchmarks

by Seth Vidal

When running a ftbfs run on both euca and openstack I started to see some pretty big differences in performance. CPU and mem were all the same or close enough so I decided to look at disk performance. euca is backed by local disks in a raid/lvm layout and/or exported via iscsi through the Storage Controller. openstack is using a replicated/distributed gluster for all disk back ends - including ephemeral (local) and volume-backed (iscsi) Results are here and are kinda staggering: http://skvidal.fedorapeople.org/misc/cloudbench.txt in short - gluster performance really bogs us down for building in the cloud instances. thoughts on improving that performance or do we simply want to have certain workloads in euca specifically b/c the disks are more disposable and/or faster? -sv

11 years, 6 months

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Re: Fedora/Infra/Gluster halp? Fwd: cloud disk benchmarks

by Seth Vidal

On Mon, 8 Oct 2012, Jeff Darcy wrote: >> http://skvidal.fedorapeople.org/misc/cloudbench.txt > > Two things jump out at me from these results. First is that using GlusterFS > replication for ephemeral storage seems . . . strange. Is there some reason > that the OpenStack setup can't use local storage like the Eucalyptus one does? > Using remote storage for ephemeral is just always going to be sub-optimal no > matter how well that remote storage works. Our primary reasons for using gluster here were two: 1. to use all the space available on all of the nodes - compute and storage/networking 2. to have a common disk backend for openstack to enable their live migration capability - so we can migrate instances off of compute node so we can put it in downtime. > The second thing is the ratios between Euca/iSCSI and OS/GlusterFS speeds. > Here are the numbers worked out: > > sequential read: 5.2x to 6.0x > random read: 3.1x to 6.0x > sequential write: 5.7x to 8.2x > random write: 1.7x to 2.0x > > This is a bit surprising, because I've always thought of random writes as one > of our worst cases. Apparently it's also someone else's, though we still get > beaten. It's also interesting that the worse numbers (for us) tend to be at > the higher thread counts, which is kind of contrary to our being all about > scalability rather than per-thread performance. These results are grim. They are kind of brutal but the conditions underwhich I was testing them was about the same between the two cloudlets. > I'm inclined to think that the read results - as bad as they might be - aren't > the problem here because reads can benefit from caching and locality of > reference. > Seth, let me know if that's not true for your workload. The real > problem is writes. The report for random write seems inconsistent here, with > very low throughput but also very low latency. I'll go with the throughput > numbers and say that for 4KB requests we're looking at ~160 IOPS. Blech. If > it were me, I'd stick with the Euca instances for this workload unless/until we > figure out why GlusterFS is performing so horribly. Our goal is to use gluster to let us do live migrations. We've discussed the possibility of having separate cloudlets on purpose - so we can have use cases of disposable/fast instances and longer-term, reliable instances. And I think we're all on board with that, actually. There's just no harm in wanting cake and ice cream. Sometimes you might not get them both. :) Thanks for the analysis, Jeff. -sv

11 years, 6 months

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2012 Security FAD last call

by Kevin Fenzi

Greetings. We are working to finalize planning on the security fad: https://fedoraproject.org/wiki/FAD_Infrastructure_Security_2012 If anyone would like to attend and would be helpful in achieving our goal, please add your information asap. If you have your info there, but have not updated it, we may drop you from the list. Thanks, kevin

11 years, 6 months

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Meeting Agenda Item: Introduction Miguel Fonseca

by Miguel Fonseca

Hi all. Here's my intro... My name is (obviously) Miguel and I'm from Portugal. Regarding IRC (and pretty much everything else) I'll go by the nick of miguelcnf. I'm currently a systems & operations engineer at an IT & Telco company in Portugal. I'm a Linux enthusiast and huge fan of Perl. I've been using Fedora as my personal choice of OS since Cambridge. I've recently joined the Portuguese L10N team and I'm looking forward to contribute to the Infrastructure team as well. I'm a RHCE and work on a daily basis with Red Hat/CentOS systems administration so I think I could probably be helpful on the sysadmin-web/sysadmin-tools FIGs. Let me know what I can do to help! Cheers Miguel

11 years, 6 months

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Plan for tomorrow's Fedora Infrastructure meeting (2012-10-04)

by Kevin Fenzi

The infrastructure team will be having it's weekly meeting tomorrow, 2012-10-04 at 18:00 UTC in #fedora-meeting on the freenode network. Suggested topics: #topic New folks introductions and Apprentice tasks. If any new folks want to give a quick one line bio or any apprentices would like to ask general questions, they can do so in this part of the meeting. Don't be shy! #topic Applications status / discussion Check in on status of our applications: pkgdb, fas, bodhi, koji, community, voting, tagger, packager, dpsearch, etc. If there's new releases, bugs we need to work around or things to note. #topic Sysadmin status / discussion Here we talk about sysadmin related happenings from the previous week, or things that are upcoming. #topic Private Cloud status update #topic Security FAD update #topic Upcoming Tasks/Items #info 2012-10-08 purge inactive fi-apprentices #info 2012-10-08 - announce smolt retirement #info 2012-10-09 to 2012-10-23 F18 Beta Freeze #info 2012-10-23 F18 Beta release #info 2012-11-01 nag fi-apprentices #info 2012-11-07 - switch smolt server to placeholder code. #info 2012-11-13 to 2012-11-27 F18 Final Freeze #info 2012-11-20 FY2014 budget due #info 2012-11-22 to 2012-11-23 Thanksgiving holiday #info 2012-11-26 to 2012-11-29 Security FAD #info 2012-11-27 F18 release. #info 2012-11-30 end of 3nd quarter #info 2012-12-24 to 2013-01-01 Red Hat Shutdown for holidays. #info 2013-01-18 to 2013-01-20 FUDCON Lawrence #topic Open Floor Submit your agenda items, as tickets in the trac instance and send a note replying to this thread. More info here: https://fedoraproject.org/wiki/Infrastructure/Meetings#Meetings Thanks kevin

11 years, 6 months

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What can I do next?

by vipin kumar

hello team, what can I do next for Fedora Infrastructure? Please let me know about any issue which requires immediate attention and I can help in that...:) thanks & regards, -- Vipin K. Research Engineer, C-DOTB, India

11 years, 6 months

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infrastructure October 2012