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Strong Eventual Consistency – The Big Idea Behind CRDTs

news.ycombinator.com Unknown 2025-10-07 07:46:17

Strong Eventual Consistency - The Big Idea behind CRDTs CRDTs. Data structures that can be replicated across multiple nodes, edited independently, merged back together, and it all just works. But collaborative document editing and multiplayer TODO lists are just the tip of the iceberg - I believe the big application is distributed databases, and for that we need to talk about consistency. CRDTs are a tool for Strong Eventual Consistency. Let's start with the definition of normal Eventual Consi

Topics: consistency crdts eventual nodes strong
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Consistency over Availability: How rqlite Handles the CAP theorem

news.ycombinator.com Unknown 2025-12-03 16:57:08

Consistency Over Availability: How rqlite Handles the CAP Theorem rqlite is a lightweight, user-friendly, open-source, distributed relational database. It’s written in Go and uses SQLite as its storage engine. When it comes to distributed systems the CAP theorem is an essential concept. It states that it’s impossible for a distributed database to simultaneously provide Consistency, Availability, and Partition tolerance. The challenge is in the face of a network partition, a database can only b

Topics: consistency data partition read rqlite
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We made Postgres writes faster, but it broke replication

news.ycombinator.com Unknown 2026-01-06 17:26:04

We Made Postgres Writes Faster, but it Broke Replication +2 By Stu Hood, Ming Ying, Mathew Pregasen, and Olive Ratliff on June 30, 2025 When we built pg_search , the Postgres extension for search and analytics, write throughput was a priority. To be an effective alternative to Elasticsearch we needed to support high ingest workloads in real time. This is because many Elasticsearch use cases — like real-time dashboards, e-commerce search, and recommendation systems — involve continuous writes t

Topics: consistency data postgres primary tuple
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