Web operations enthusiast, capacity planner, author
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John's blog posts are hosted at:
http://www.kitchensoap.com/
http://www.kitchensoap.com/
June 23 2009
That was a blast! I had never done a ‘duet’ talk before. Here are the slides: 10+ Deploys Per Day: Dev and Ops Cooperation at Flickr read moreMay 22 2009
I can’t tell you how ripped I get when people say things like this: “cloud computing means getting rid of ops” If by “ops” you mean “people in data centers racking servers, installing OSes, running cables, replacing broken hardware, etc.” then sure, cloud computing aims to relieve you of those burdens. If… read moreContext and Operational Metrics
May 11 2009
I really don’t think it can be overestimated how important context can be when it comes to troubleshooting or evaluating the health of an infrastructure. When starting to troubleshoot a complex problem, web ops 101 “best practices” usually start with asking at least these questions: When did this problem start? What… read moreMechanical Analogies To Web Stuff, Part 2.
May 06 2009
This is a ramble continued from before, which means it’s mostly a blog post for me, but maybe others might find it interesting. The last time I made an analogy between back-end web architectures and mechanical structures, I blathered on about what are basically structural limitations of individual components in… read moreSlides from Web2.0 Expo 2009. (and somethin else interestin’)
April 03 2009
That was a pretty good time. Saw lots of good and wicked smaht people, and I got a lot of great questions after my talk. The slides are up on slideshare, and here are the PDF slides. There was something that I left out of my slides, mostly because I didn’t… read moreWhy I didn’t include queueing math in my book.
March 25 2009
It’s been wondered about why I chose not to include any real amount of material in my book about the mathematical topics related to capacity planning, like queueing theory. There are already many other excellent books that dig into the math behind Little’s Law, M/M/1 queues, and Poisson arrival processes. These… read moreMarch 05 2009
Moving one of our eight photoserving farms from hardware Layer7 URL hash balancing (expensive, has limits) to L4 DSR balancing with CARP (cheap and simple) and figuring out how to juggle 18,000 requests/second while we do it. Built yet some more automated query analysis reporting (with some yummy MySQLProxy) Added yet another… read moreFebruary 20 2009
Looks like I’m gonna talk about even more nerdy things at the Web2.0 Expo in April. You don’t have to wait for a recession to tighten up your operations. Squeezing more oomph out of your servers (or instances!) is always a good thing, and streamlining how you handle site issues… read moreMechanical Analogies To Web Stuff, Part 1.
January 14 2009
I don’t blog much, and when I do, they are pretty short and too the point. This post is different: feel free to put into the “ramble” category. I’m really just posting it here for myself as a thought exercise. Some years ago, while drawing a network map for the site I… read moreWeb Ops Visualizations Group on Flickr
December 16 2008
Like lots of operations people, we’re quite addicted to data pr0n here at Flickr. We’ve got graphs for pretty much everything, and add graphs all of the time. We’ve blogged about some of how and why we do it. One thing we’re in the habit of is screenshotting these graphs when… read more2009 Velocity Conference submissions are open!
November 20 2008
The CFP for next year’s Velocity Conference is up now, so all you ops and performance ninjas submit your ideas for talks. I’m lucky enough to be on the program committee this year, and I think the conference is a huge opportunity to spread the ops love on all kinds of… read moreCode Swarm for Config Management
October 22 2008
Gil Raphaelli, one of the guys on our Flickr Ops team, put together a Code Swarm animation for the configuration/deployment management tool we use at Flickr to manage our infrastructure. Myles Grant did this for our bug reporting system as well. Check it out: Our automated config management system is… read moreI wrote a book about common sense.
October 06 2008
Whew. That took longer than I thought. Todd Hoff over at the High Scalability blog has an email interview with me about a book that I wrote, called “The Art of Capacity Planning: Scaling Web Resources“. I’m still just happy that I got it done at all, seeing how it was… read moreSeptember 18 2008
Via kottke: some good examples of doing rough math in your head, causing you to guess about assumptions all along the way. IMHO, being able to do this is one of the things that makes a good web ops person. The examples might be “useless”, but the process is invaluable. read moreSeptember 16 2008
James Hamilton’s excellent LADIS 2008 presentation has lots of great stuff in it about internet scale bits. Cool stats. read moreAlso find John on:
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