Implementing a Durable Execution Engine Using SQLite for Persistent Workflows
By
ingve
A baker's-dozen of insight crammed into one ring.
Summary
The article explores building a Durable Execution (DE) engine using SQLite, explaining how DE engines make multi-step workflows persistent and resumable after interruptions. It discusses the value proposition of ensuring critical business processes complete eventually, and examines SQLite's suitability as a foundation for such systems due to its reliability, ACID compliance, and simplicity compared to more complex distributed databases.
Key quotes
· 3 pulledThe basic idea of DE is to take (potentially long-running) multi-step workflows, such as processing a purchase order or a user sign-up, and make their individual steps persistent.
If a flow gets interrupted while running, for instance due to a machine failure, the DE engine can resume it from the last successfully executed step and drive it to completion.
This is a very interesting value proposition: the progress of critical business processes is captured reliably, ensuring they'll complete eventually.
You might also wanna read
Implementing PostgreSQL as a Dead Letter Queue for Event-Driven Systems: A Wayfair Case Study
This article presents a case study from Wayfair on using PostgreSQL as a Dead Letter Queue (DLQ) for event-driven systems. It explains how K
SQLite's Efficiency with Many Small Queries: Architectural Advantages Over Client/Server Databases
This article addresses criticism about SQLite's use of many small SQL queries (around 200 per dynamic page) by explaining why this approach
Comparing PostgreSQL and Kafka: Understanding Their Different Use Cases in Distributed Systems
This article critiques the common trend of developers arguing that PostgreSQL can replace Apache Kafka for event streaming needs. The author
morling.dev·7mo ago
PostgreSQL as a Practical Alternative to Kafka for Small-Scale Message Queuing
The article argues against the overuse of complex messaging systems like Kafka for small-scale applications, advocating instead for PostgreS
topicpartition.io·7mo ago
SwirlDB: A Modular CRDT Database with Swappable Adapters for Browsers and Servers
SwirlDB is a modular-first CRDT database designed for browsers and servers, built on a philosophy where everything is an adapter rather than
docs.swirldb.org·7mo ago
Examining the Feasibility of Replacing Cache Services with Databases
This technical blog post explores the possibility of replacing cache services with databases, examining why caches are used (primarily for l