Dec
7

MongoSV Conference

Posted on December 7, 2010 by Ron Bodkin

It was great attending the MongoSV conference last week. The conference was packed with attendees from a mix of backgrounds, showing lots of interest in scaling with MongoDB. There were some good technical talks from 10gen about their database. I especially liked the hands on intro by CEO Dwight Merriman, and the hand drawn slides…

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Oct
15

Foursquare’s MongoDB Outage

Posted on October 15, 2010 by Ron Bodkin

Foursquare recently suffered a total site outage for eleven hours. The outage was caused by unexpected uneven growth in their MongoDB database that their monitoring didn’t detect. The system outage was prolonged when an attempt to add a partition didn’t work due to fragmentation, and required taking the database offline to compact it. This article…

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Aug
4

LinkedIn’s Data Infrastructure

Posted on August 4, 2010 by Ron Bodkin

Jay Kreps of LinkedIn presented some informative details of how they process data at the recent Hadoop Summit. Kreps described how LinkedIn crunches 120 billion relationships per day and blends large scale data computation with high volume, low latency site serving. Much of LinkedIn’s important data is offline – it moves fairly slowly. So they…

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