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Archive for the ‘operations’ Category

Velocity 2009

Posted by John Adams on June 28th, 2009

Last Tuesday, I was part of the Velocity 2009 Keynote, where I gave a talk entitled, “Fixing Twitter”. I covered the last year or so of work in improving Twitter to deal with the massive traffic and user loads we’ve been under and how we use metrics to destroy the fail-whale.
Details of the talk are [...]

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Announcing the release of Mod_Telemetry

Posted by John Adams on July 9th, 2008

I’m releasing my apache module which has been extremely helpful to me in performance tracking, and large site analysis.
mod_telemetry keeps track of all URLs on your site and how long it takes your server to deliver each request. It reports these by using a status handler (like Apache’s /server-status) to display real-time status information about [...]

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DNS Patches released today for many platforms

Posted by John Adams on July 8th, 2008

If you’re responsible for DNS at your organization, I urge you to immediately download updates for your DNS servers and patch them, today. Dan Kaminsky and other members of the DNS community announce that they are releasing patches for an extremely serious cache resolver issue impacting many vendors of DNS software, including ISC BIND and [...]

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Day one, Velocity…

Posted by John Adams on June 23rd, 2008

I made it to Velocity around lunch as I was dealing with work business, but so far it’s been pretty decent. Thanks to Jesse Robbins for the invite to speak this evening at Ignite, and for access to the conference.
The day opened (for me, at least) with the Measuring Performance presentation. The general takeaway [...]

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