Property-testing async code in Rust to build reliable distributed systems - Antonio Scandurra

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ABSTRACT:
Building reliable distributed systems is extremely challenging. Every await point in a codebase creates an explosion of possible execution sequences, some of which only occur in rare circumstances. If a buggy sequence occurs 1% of the time, you'll be plagued with production bugs and intermittent CI failures that are extremely hard to reproduce. The only solution is to test every possible sequence, but how?
This talk will explain how Zed Industries leveraged Rust's unique asynchronous programming model to maximize the reliability of our CRDT-based collaborative editor. After reviewing the foundational concepts of Rust futures, we'll explore an implementation of a deterministic runtime that executes all possible permutations of asynchronous code paths. We think this represents a game-changing strategy for rapidly developing reliable concurrent systems, and by the end of the talk, you'll be equipped with practical tools to bring the same level of reliability to your own applications.
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Опубликовано:

30 июн 2024

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Комментарии : 3

@no-bias- 2 месяца назад

Great talks! looking forward to tech talk like this especially on the chaos testing with Rust.

@patmelsen 3 месяца назад

Been looking forward to watching this talk. I think property testing is an incredibly useful tool to have in your belt, and the ability to combine it with futures execution ordering is really useful. This means you can basically get some features that you would get from formal verifications systems (promela, TLA+) for *free* in Rust! At least for promela, it works simply by trying out all possible permutations of orderings and ensuring your assertions hold. Combining property testing with execution ordering achieves the same. How awesome is that?

@thomasw.4298 4 месяца назад

Don't tokio's file/net handles require to be run exclusively on the tokio runtime? If you have a Tokio::net TcpStream and run it on a home brew executor, wont it not work? I think it throws an error when it can't detect the tokio runtime. Is this where the mocks come in?