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How ClickHouse saved our data (2020)
The Mux Data platform is used by some of the biggest broadcasters to monitor the video streaming experience of their end users. Think of it like Google Analytics or New Relic for video playback. It's a...
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,338 posts.
1712
Mongo BSON Injection: Ruby Regexps Strike Again
We do penetration testing, source code auditing and vulnerability assessments
1713
RethinkDB 1.8: date support, querying nested objects, 8x disk usage improvements
Michael Lucy ( @mlucy ), an engineer at RethinkDB, introduces these new features in this two-minute video:
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Scaling the Facebook data warehouse to 300 PB
Visit the post for more.
1716
Making Postgres queues scale
Lessons learned from scaling Postgres-backed durable queues for users running tens of billions of workflows per month.
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Announcing RethinkDB 2.3.6: the first release under community governance
We’re pleased to announce the availability of RethinkDB 2.3.6, the first release since RethinkDB transitioned to community governance. This update includes a range of bugfixes and stability improvements. For a complete list of changes in this update, you can refer to the release notes .
1719
Apache Arrow Flight: A Framework for Fast Data Transport
This post introduces Arrow Flight, a framework for building high performance data services. We have been building Flight over the last 18 months and are looking for developers and users to get involved.
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Mapping Racist Tweets in Response to President Obama's Re-election
Note: for questions about the methodology/approach of this post, see the FAQ (added 16:20 EST 11/9/2012). Note: as of 11:00 EST 11/10/2012...
1722
Time series database Graphite seems to be falling into disfavor
SolarWinds database performance monitoring software helps optimize and manage databases, providing comprehensive monitoring, analysis, and tuning. Improve your database performance with visibility, control, and streamlined management across on-premises and cloud environments. Free trial available!
1723
Artwork Personalization at Netflix
Artwork is the first instance of personalizing not just what we recommend but also how we recommend.
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Causality in machine learning
By OMKAR MURALIDHARAN, NIALL CARDIN, TODD PHILLIPS, AMIR NAJMI Given recent advances and interest in machine learning, those of us with tr...
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Three years later, Mr. Moore is still letting us punt on database sharding
Three years ago, I wrote about how improvements in technology keep allowing us to punt on sharding the Basecamp database. This is still true, only more so now. We’ve grown enormously over the last three years but RAM keeps getting cheaper and FusionIO SSD’s keep getting faster. If an…
1728
PostgreSQL 16 Bi-Directional Logical Replication
Introduction In this blog, we'll be going over some more advanced topics new in Postgres 16. Having some experience with Linux, Postgres, and SQL is necessary as we'll not only be going over these new features but also how to implement them. This blog was written using PostgreSQL 16 (Development Version) running on…
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Native ZFS VDEV for Object Storage (OpenZFS Summit)
We presented MayaNAS at OpenZFS Developer Summit 2025, introducing objbacker.io—a native ZFS VDEV for object storage. No FUSE, direct kernel-to-SDK integration achieving 3.7 GB/s throughput.
1731
There is no posttraining data commons
The LLM revolution ran on a pretraining commons that humanity built for other reasons. Posttraining consumes tasks, not documents, and no such commons exists. If the open models community wants...
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Tuning Your DBMS Automatically with Machine Learning
This is a guest post by Dana Van Aken, Andy Pavlo, and Geoff Gordon of Carnegie Mellon University. This project demonstrates how academic researchers can leverage our AWS Cloud Credits for Research Program to support their scientific breakthroughs. Database management systems (DBMSs) are the most important component…
1735
Oklahoma Department of Securities Leaked Millions of Files
A storage server configured for public access exposed millions of files belonging to the Oklahoma Securities Commission.
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CockroachDB 20.1
We want to give you a database that allows you to quickly and simply build and manage data-intensive applications in the cloud—without worrying about the performance, scale or resilience of those apps. To support that mission, our latest release includes updates that let you build fast and build to last.
1737
A Word Is Worth a Thousand Vectors
Standard natural language processing (NLP) is a messy and difficult affair. It requires teaching a computer about English-specific word ambiguities as well a...
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Solving methane mysteries with satellite imagery
By combining two types of remote sensing data, we can see hidden leaks from ships
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