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Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,226 posts.
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How not to test that mysqld is alive
I had a call from a new customer last week. They had issues with their MySQL server. Apparently, it was repeatingly crashing, every few hours. To have their production system kept alive, they used …
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Stack Overflow Creative Commons Data Dump
We decided early on that all user-generated content on Stack Overflow would be under a Creative Commons license . All those great Stack Overflow questions, answers, and comments, so generously contributed by all of you , are licensed under cc-wiki (also known as cc-by-sa ):
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Atomic Commit in SQLite (2007)
An important feature of transactional databases like SQLite is "atomic commit". Atomic commit means that either all database changes within a single transaction occur or none of them occur. With atomic commit, it is as if many different writes to different sections of the database file occur instantaneously and…
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Please don't use pie charts
I don't like pie charts. I don't like them because they fail to convey information. They do that because people have a really hard time ju...
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Facebook's photo storage rewrite
This week Facebook will complete its roll-out of a new photo storage system designed to reduce the social network's reliance on expensive proprietary solutions from NetApp and Akamai. The new large blob storage system, named Haystack, is a custom-built file system solution for the over 850 million photos uploaded to…
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Collaborative Map-Reduce in the browser
After immersing yourself into the field of distributed computing and large data sets you inevitably come to appreciate the elegance of Google's Map-Reduce framework . Both the generality and the simplicity of its map , emit , and reduce phases is what makes it such a powerful tool. However, while Google has made the…
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Project Cassandra: Facebook's Open Source Alternative to Google BigTable
About a week ago, the Facebook Data team quietly released the Cassandra Project on Google Code. The Cassandra project has been described as a cross between ...
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NYTimes.com Announces Map/Reduce Toolkit
Recently we’ve been exploring the on-demand storage and computation tools offered by Amazon Web Services, along with an open-source toolkit called Apache Hadoop. The result is many computers working together to answer questions about our users.
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Put that database in memory
Writings on artificial intelligence, personalization, recommendations, and the tech industry.
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Official Google Blog: Sorting 1PB with MapReduce
Insights from Googlers into our products, technology, and the Google culture
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Large-scale graph computing at Google
Posted by Grzegorz Czajkowski, Systems Infrastructure TeamIf you squint the right way, you will notice that graphs are everywhere. For example, soc...
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