swactor/crates/swactor-gossip

swactor-gossip

Epidemic gossip protocol built on the swactor actor runtime.

Nodes exchange state via randomized push-gossip and converge to a consistent view using last-writer-wins versioned values.

Crate layout

• protocol — GossipActor, GossipMessage, GossipState (the core protocol implementation)
• sim — simulation harness with configurable topologies (Ring, Star, FullMesh, Chain, Partitioned) and optional partition healing
• trace — per-tick event log and SimulationTrace for post-run analysis
• properties — metrics extraction (delivery ratio, convergence round, redundancy, load balance, etc.) and property-based assertions over traces
• report / property_report — self-contained HTML report generators for single-run and multi-scenario results

Tools

Dashboard (gossip-dashboard crate)

A live web dashboard that streams simulation progress to a browser in real time. See crates/gossip-dashboard/.

cargo run -p gossip-dashboard --example dashboard
# or with a TOML config:
cargo run -p gossip-dashboard --example dashboard -- crates/gossip-dashboard/examples/sim.toml

HTML report

The gossip_sim example runs a simulation and writes a standalone HTML report:

cargo run -p swactor-gossip --example gossip_sim

Property report

Runs multiple scenarios and generates an HTML report checking gossip protocol properties (convergence, consistency, load balance):

cargo run -p swactor-gossip --example gossip_property_report