bastion-rs/bastion

Health v2 · maintenance only

Adoption not part of the score

2911 stars · 103 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Bastion is a highly-available, fault-tolerant runtime for Rust that provides actor-model-like concurrency with lightweight processes, supervision trees, and a NUMA-aware SMP executor. It brings Erlang-style supervision and message-based communication to Rust applications.

Use cases

• build fault-tolerant actor-based systems in Rust
• supervise and restart failing subprocesses automatically
• run lightweight concurrent message-passing tasks
• write Erlang-style supervised applications in Rust
• build small-scale distributed systems with fault tolerance

When to choose

• you want actor-model concurrency with supervision trees in Rust
• you need fault-tolerant message-passing without a web framework
• you want Erlang-like reliability semantics with Rust performance

When to avoid

• you need a mature, actively developed framework - releases have stalled since 2023
• you need guaranteed message delivery - Bastion only promises at-most-once
• you need large-scale distributed clustering rather than single-node fault tolerance

Facets

library · maturity maintenance

concurrency microservices microservices developer-tools rust windows cross-platform actor-model fault-tolerance supervision async-runtime erlang-style smp numa-aware linux macos

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