Zero-latency SQLite storage in every Durable Object
Cloudflare's Durable Objects now feature zero-latency SQLite storage, enabling synchronous SQL queries, enhancing performance, supporting scalability, allowing fast writes with data durability, and offering point-in-time recovery within 30 days.
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Cloudflare has introduced zero-latency SQLite storage within its Durable Objects (DO) framework, enhancing cloud computing by allowing application code to run directly where data is stored. This architecture eliminates traditional network latency by embedding SQLite as a local library, enabling synchronous SQL queries that return results almost instantaneously. Previously, DOs only supported key/value storage, but now they offer a full SQL interface, leveraging SQLite's speed and reliability. Durable Objects are small, stateful servers that can be accessed globally, allowing for real-time collaboration and efficient state management. They are designed to scale out rather than up, meaning multiple DOs can handle different logical units of state to manage high traffic. The introduction of "Output Gates" allows for fast writes without blocking the application, ensuring that responses are only sent after confirming data durability. Additionally, SQLite-backed DOs support point-in-time recovery, allowing users to revert to previous states within 30 days. This innovation simplifies database interactions, making it easier for developers to manage data without needing extensive SQL knowledge.
- Cloudflare's Durable Objects now support zero-latency SQLite storage.
- Synchronous SQL queries in DOs enhance performance and reduce complexity.
- Durable Objects are designed for scalability, handling high traffic efficiently.
- "Output Gates" enable fast writes while ensuring data durability.
- Point-in-time recovery is available for SQLite-backed Durable Objects.
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4 commentsShared SQL databases tend to have very poor performance when you join across shards. In this case the downside of distributed joins is avoided by having very many small purpose built databases.
All IO is synchronous? Writes don't actually write when they say they do? Running 201 queries is as "fine" as running a single one with join?
It seems as they got every bad ideia in the book and somehow made it into something that works (that is, if it actually does).
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SQLite is popular for web apps but has limitations like single-threaded access, network challenges, and constraints in concurrency and transactions. Consider alternatives like MySQL for complex scenarios.
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SQLite outperforms traditional file I/O by achieving 35% faster reads of small blobs and using 20% less disk space for 10-kilobyte blobs, despite some latency issues in specific scenarios.
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SQLite efficiently manages numerous small queries without performance degradation, unlike traditional databases. Its architecture supports both complex and simple queries, with page generation latency typically under 25 milliseconds.
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SQLite is a lightweight, serverless database engine ideal for local data storage in embedded systems, supporting low to medium traffic websites, data analysis, and serving as a cache, but unsuitable for high concurrency.
SQLite is not a toy database
SQLite is a versatile, serverless database management system that supports advanced features, efficiently handles large datasets, and is suitable for small web applications, countering misconceptions about its limitations.