Uber Builds GitFarm to Run Git Operations as a Service for Large-Scale Monorepos
Uber’s GitFarm provides Git operations as a centralized service, eliminating local repository clones across large scale monorepo workloads. The plat…
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Presentation: From DVDs to Global Streaming: How Netflix’s Commerce Architecture Actually Evolved
Kasia Trapszo discusses how Netflix evolved its commerce platform from a U.S. DVD service into global infrastructure. She explains navigating intern…
Harper Argues Against the Multi-System Stack and Releases 5.2
The database platform Harper advocates for a single-runtime architecture that keeps application code and data together, with its benchmark against a…
Presentation: Understanding Progressive Collapse: How To Avoid A Cascading Failure
Sam Newman discusses the concept of progressive collapse in civil engineering and how it applies to distributed systems. Using real-world examples -…
Cloudflare Migrates JavaScript CDN Serving 9B Requests a Day to Its Developer Platform
Cloudflare has migrated cdnjs, its open source CDN for JavaScript and CSS libraries, to its Developer Platform. The new architecture uses Workers, R…
Spotify Builds External Index to Enable Low Latency Point Queries on Its Data Lake
Spotify introduced external indexing architecture for Apache Parquet data lakes that enables low-latency point queries without replicating datasets…
How Netflix Scaled Its Real-Time Service Map
Netflix has described how it redesigned the streaming pipeline behind Service Topology, its real-time service dependencies map, to support productio…
Instacart Builds Blueberry, an AI-Powered Assistant to Help On-Call Engineers Investigate Incidents
Instacart introduced Blueberry, an AI-assisted incident response system that helps on-call engineers investigate production issues faster. It combin…
JioHotstar Explains the Distributed Engineering Behind Personalized Ad Requests at Streaming Scale
JioHotstar explains the distributed architecture behind its real-time ad request workflow, covering ad decisioning, waterfall tiering, pacing algori…
Cloudflare Introduces Meerkat for Strongly Consistent Global Coordination
Cloudflare recently introduced Meerkat, an internal globally consistent control-plane service based on the QuePaxa consensus algorithm. Unlike Raft,…
Presentation: Parting the Clouds: The Rise of Disaggregated Systems
Murat Demirbas discusses the shift toward disaggregated cloud database architectures driven by cloud economics. He explains how decoupling compute f…
DoorDash Uses Envoy and Valkey for a 1.5M RPS Proxy Cache with 99.99999% Availability
DoorDash has developed Entity Cache, a transparent proxy caching platform built on Envoy and Valkey to reduce redundant service-to-service requests…
Google and Industry Partners Announce Agentic Resource Discovery Specification for AI Agents
Google and industry partners announced Agentic Resource Discovery (ARD) Specification, an open standard for publishing, discovering, and verifying A…
How DoorDash Built an AI Shopping Assistant That Doesn’t Rely on the LLM Alone
DoorDash details the architecture behind Ask DoorDash, its AI-powered conversational shopping assistant, combining LLMs, specialized AI agents, MCP-…
Airbnb Shares Architecture Behind Sitar-Agent Dynamic Configuration Sidecar for Kubernetes Services
Airbnb engineers detailed Sitar-agent, a Kubernetes sidecar for dynamic configuration delivery across tens of thousands of pods, processing updates…
Netflix Cuts Cassandra Read Latency from Seconds to Milliseconds with Dynamic Partition Splitting
Netflix engineers introduced dynamic partition splitting for Cassandra to address wide partitions in time series workloads. The metadata-driven appr…
Instacart Scales Personalized Marketing via Configuration-Driven Multi-Tenant Platform
Instacart redesigned its personalized marketing system using a configuration-driven multi-tenant architecture on Storefront Pro. The system replaces…
Slack Outlines Four-Phase Journey to a Multi-Cloud AI Serving Platform
Slack has outlined how its AI serving infrastructure evolved through four distinct phases, moving from a self-managed Amazon SageMaker deployment to…
Inside Atlassian’s Forge Billing Architecture for Distributed Usage Tracking at Scale
Atlassian details the Forge billing platform built for usage-based pricing across its cloud ecosystem. It processes large-scale usage events with co…
Behind the Scenes: Block 450 JVM Repositories Into Monorepo to Reduce Dependency Drift
Block, Inc. describes migrating ~450 JVM repositories into a monorepo across Cash App and Square engineering to reduce dependency drift and coordina…
Podcast: Increasing Users' Data Agency: From BlueSky's AT Protocol to the Local-First Software Movement
Martin Kleppmann, an associate professor at Cambridge and author of Designing Data-Intensive Applications, discusses the evolution of data systems o…
Lyft Uses Mapping Intelligence to Reduce Friction in Gated Community Pickups
Lyft details a new pickup experience to improve reliability in gated communities, where 25–30% of rides face routing and access challenges. The syst…
Pinterest Uses Content Fingerprints for URL Deduplication Across Millions of Domains
Pinterest introduced MIQPS, a URL normalization system that identifies which query parameters affect page identity using rendered content fingerprin…
30+ Updates per Second per Account: Uber Scales Ledger Processing with Batching
Uber introduced a high-throughput financial ledger processing system designed to handle hot account write contention at scale. Using 250ms batching,…
Inside Google’s System for Coordinated A/B Testing Across Its Global Service Fleet
Google has shared details of its fleet wide large scale A/B experimentation system designed to standardize experiment assignment, exposure logging,…
Shopify Reports 15X Faster Graphql Execution with Breadth First Engine
Shopify introduced GraphQL Cardinal, a new execution engine replacing depth-first traversal with breadth-first execution. The redesign improves larg…
Article: Stragglers, Not Failures: How Adaptive Hedged Requests Reduce p99 Latency by 74 Percent
n fan-out microservice architectures, slow-but-completing requests accumulate across services and drive p99 latency far higher than per-service metr…
Uber Improves Restaurant Recommendations Using Real-Time Signals and Listwise Ranking
Uber updates its Uber Eats Home Feed recommendation system using near real-time user sequence features and a Generative Recommender model. The syste…
Airbnb Implements Context-Aware Identity Model to Support Privacy-First Social Features
Airbnb has redesigned its identity system to support privacy-first social features in Experiences. The platform introduces context-specific profiles…
Netflix Serves 84% of Query Results from Cache with Interval-Aware Caching in Apache Druid
Netflix improves Apache Druid performance with interval aware caching, serving 84% of analytics results from cache and reducing query load by 33%. T…