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New
The latest blog posts to take off on Hacker News. 4,224 posts.
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Data first, not code first
Developers hate him! We'll cover some standard tips and tricks here, but we're not really interested in those. We're looking for the One Weird Trick to rule them all. Hopefully each trick we encounter brings us closer to coding Mecca. In the beginning The first video game I ever wrote was called Ninja Wars. Yes, that…
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Perceptual Image Compression at Flickr
At Flickr our users really care about image quality. They also care a lot about how responsive our apps are. Addressing both of these concerns simultaneously is challenging; higher quality images have larger file sizes and are slower to transfer. Slow transfers are especially noticeable on mobile devices. Flickr had…
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Call Me Maybe: Percona XtraDB Cluster
Percona’s CTO Vadim Tkachenko wrote a response to my Galera Snapshot Isolation post last week. I think Tkachenko may have misunderstood some of my results, and I’d like to clear those up now. I’ve ported the MariaDB tests to Percona XtraDB Cluster, and would like to confirm that using exclusive write locks on all…
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Reasons to love SQLAlchemy
I've seen some bashing of ORMs of late, which I think is totally undeserved. I'm a big fan of SQLAlchemy ; I use it in most of my projects, and have contributed code to the library. I'm going to explain 10 good reasons you should love SQLAlchemy too! In fairness, there are a number of good ORMs around, and most of…
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The Unreasonable Effectiveness of Random Forests
It’s very common for machine learning practitioners to have favorite algorithms. It’s a bit irrational, since no algorithm strictly…
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Lower Cost S3 Storage Option and Glacier Price Reduction
Like all AWS services, the Amazon S3 team is always listening to customers in order to better understand their needs. After studying a lot of feedback and doing some analysis on access patterns over time, the team saw an opportunity to provide a new storage option that would be well-suited to data that is accessed […]
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GraphQL: A data query language
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Etcd 2.2
No single cloud fits all. Explore how we build a more flexible future with hybrid cloud.
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Call Me Maybe: MariaDB Galera Cluster
Previously, on Jepsen, we saw Chronos fail to run jobs after a network partition . In this post, we’ll see MariaDB Galera Cluster allow transactions to read partially committed state.
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How CockroachDB Does Distributed, Atomic Transactions
One of the headline features of CockroachDB is its full support for ACID transactions across a distributed database. In this post, we’ll explain...
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Migrating bajillions of database records at Stripe
There are roughly ten thousand bajillion (to the nearest bajillion) merchants registered with Stripe. We recently finished a Very Big Migration of Large Amounts Of Data between several database tables for every single one of them, without losing any of it, without any downtime, mis-reads or mis-writes, whilst running…
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Understanding ETF “Flash Crashes”
Join your peers in reading the latest perspectives and insights from FactSet experts across topics that matter to you.
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YC Stats
We get asked (a lot) for statistics on the YC portfolio about valuation and fundraising. Although these are very imperfect indicators of success, here they are. All of these companies actually went through a YC batch and got their start with us (e.g. we do not include Quora). Also, the YC application for the next…
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Sharding Pinterest: How we scaled our MySQL fleet
Building the platform where people around the world come to search, save and shop
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Call Me Maybe: Chronos
Chronos is a distributed task scheduler (cf. cron) for the Mesos cluster management system. In this edition of Jepsen , we’ll see how simple network interruptions can permanently disrupt a Chronos+Mesos cluster
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Google’s S2, geometry on the sphere, cells and Hilbert curve
Update - 05 Dec 2017: Google just announced that it will be commited to the development of a new released version of the S2 library, amazing news, repository can be found here. Google's S2 library is a real treasure, not only due to its capabilities for spatial indexing but also because it is a library that
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Building the Next New York Times Recommendation Engine
Alexander Spangher discusses recent work that’s been done to revamp our article recommendation algorithm.
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RethinkDB 2.1 is out: high availability
Today we’re proud to announce RethinkDB 2.1 ( Forbidden Planet ). Download it now !
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The technology behind preview photos
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