Malaria threatens one half of the world’s population, resulting in 350 million cases each year and nearly one million deaths on an annual basis—many of them children. World Malaria day is this Sunday, and the impact of organizations devoted to the cause has already begun. In partnership with Malaria No More and The Case Foundation, Twitter is offering a way to help put an end to this disease. You can help starting today with just one tweet.Read more…

At Twitter, we use memcached to speed up page loads and alleviate database load. We have many memcached hosts. To make our system robust, our memcached clients use consistent hashing and enable the auto_eject_hosts option. With this many hosts and this kind of configuration, one would assume that it won’t be noticeable if one memcached host goes down, right?Read more…

The Library of Congress is the oldest federal cultural institution in the United States and it is the largest library in the world. The Library’s primary mission is research and it receives copies of every book, pamphlet, map, print, and piece of music registered in the United States. Recently, the Library of Congress signaled to us that the public tweets we have all been creating over the years are important and worthy of preservation.Read more…

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