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Netflix Tudum Architecture: from CQRS with Kafka to CQRS with RAW Hollow

By Eugene Yemelyanau, Jake GriceIntroductionTudum.com is Netflix’s official fan destination, enabling fans to dive deeper into their favorite Netflix shows and movies. Tudum offers exclusive first-looks, behind-the-scenes content, talent interviews, live events, guides, and interactive experiences. “Tudum” is named after the sonic ID you hear when pressing play on a Netflix show or movie. Attracting over 20 million members each month,...
Measuring the impact of AI on experienced open-source developer productivity

We conduct a randomized controlled trial (RCT) to understand how early-2025 AI tools affect the productivity of experienced open-source developers working on their own repositories. Surprisingly, we find that when developers use AI tools, they take 19% longer than without—AI makes them slower. We view this result as a snapshot of early-2025 AI capabilities in one relevant setting; as these...
We stopped relying on bloom filters and now sort our ClickHouse primary key on a resource fingerprint. It cut our log query scans to 0.85% of blocks.

Hey folks, My team and I have been working on a performance optimization and wanted to share the results. We managed to cut log-query scanning from nearly all data blocks down to less than 1% by reorganizing how logs are stored in ClickHouse. Instead of relying on bloom-filter skip indexes, we generate a deterministic “resource fingerprint” (a hash of cluster...
The Micro-Frontend Architecture Handbook

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Python 3.14 will officially support free-threading

This article explains the new features in Python 3.14, compared to 3.13. New features¶ PEP 779: Free-threaded Python is officially supported¶ The free-threaded build of Python is now supported and no longer experimental. This is the start of phase II where free-threaded Python is officially supported but still optional. We are confident that the project is on the right path, and we appreciate the continued dedication from...
The power of SurrealDB embedded

Embedded systems are rapidly evolving to power intelligent, offline-first applications at the edge, demanding more than traditional storage solutions. With the rise of on-device LLMs, dynamic data models, and real-time decision-making, a new kind of embedded database is needed. In this blog, we describe the power of SurrealDB embedded: a lightweight, secure, and AI-native engine built in Rust, designed to...

Tag: Architecture

Microservices Granularity Tradeoffs

Microservices Granularity Tradeoffs

Published by Arnon Rotem-Gal-Oz on March 17, 2025

When architects and developers embrace microservices, one of the most challenging questions is: “How big should each service be?” While true, the obvious answer –…

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Microservices first?

Microservices first?

Published by Arnon Rotem-Gal-Oz on March 4, 2025

After years of “microservices all things,” the tide has turned, and now the standard take is to build a (modular) monolith first. As an industry,…

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Software architecture workshop (slides)

Vasa Ship

Software architecture workshop (slides)

Published by Arnon Rotem-Gal-Oz on November 29, 2023

The title says it all – These are slides from a session I was working on to explain the basics of software architecture based on…

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Big data in the cloud – welcome to cost oriented design

Big data in the cloud – welcome to cost oriented design

Published by Arnon Rotem-Gal-Oz on April 1, 2016

A couple of weeks ago I presented @ BDX2016 The slides are available on Slideshare Big data in the cloud – welcome to cost oriented…

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Data’s hierarchy of needs

Data’s hierarchy of needs

Published by Arnon Rotem-Gal-Oz on June 1, 2015

This post originally published in the AppsFlyer blog. A couple of weeks ago Nir Rubinshtein and I presented AppsFlyer’s data architecture in a meetup ofBig…

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