Monitoring

How WordPress.com Tracks 300 Servers Handling 10 Million Pageviews

Todd Hoff

Nov 2, 2007

WordPress.com hosts 300 servers in 5 different data centers. It's always useful to learn how large installations manage all their unruly children: Currently we Nagios for server health monitoring, Munin for graphing various server metrics, and a wiki to keep track of all the server hardware specs, IPs, vendor IDs, etc. All of these tools have suited us well up until now, but there have been some scaling issues. The post covers how these different tools are working for them and the comment section has some interesting discussions too.

Capturing A Billion Emo(j)i-ons

This blog post was written by Dedeepya Bonthu. This is a repost from her Medium article, approved by the author. In stadiums, sports fans love to express themselves by cheering for their favorite teams, holding up placards and team logos. Emoji’s allow fans at home to rapidly express themselves,

Brief History of Scaling Uber

This blog post was written by Josh Clemm, Senior Director of Engineering at Uber Eats. This is a repost from his LinkedIn article, approved by the author. On a cold evening in Paris in 2008, Travis Kalanick and Garrett Camp couldn't get a cab. That's when

Behind AWS S3’s Massive Scale

This is a guest article by Stanislav Kozlovski, an Apache Kafka Committer. If you would like to connect with Stanislav, you can do so on Twitter and LinkedIn. AWS S3 is a service every engineer is familiar with. It’s the service that popularized the notion of cold-storage to the

The Swedbank Outage shows that Change Controls don't work

This week I’ve been reading through the recent judgment from the Swedish FSA on the Swedbank outage. If you’re unfamiliar with this story, Swedbank had a major outage in April 2022 that was caused by an unapproved change to their IT systems. It temporarily left nearly a million

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Capturing A Billion Emo(j)i-ons

Brief History of Scaling Uber

Behind AWS S3’s Massive Scale

The Swedbank Outage shows that Change Controls don't work