| ID | product.edge.rule_runtime.evaluator |
|---|---|
| Description | Evaluates rules against the local data stream. |
| Key | evaluator |
| Type | component |
| Team | Edge Platform |
| Owner | edge-platform@iotgateway.example |
| Status | active |
| Technologies | Rust, Lua/WASM (rules) |
| Attributes | language: Rust, latency: <10ms, sandbox: WASM |
| Tags |
Table of contents
Guide
Rule Evaluator
The Rule Evaluator is the hot loop of the runtime. For every sample on the local stream it runs the active rule pack supplied by the Rule Loader and, when a rule fires, hands the outcome to the Actuator Client.
Deterministic and bounded
Rules run inside a WASM sandbox with a strict per-evaluation time and memory budget. Evaluation is deterministic and bounded under ~10 ms so a single expensive rule can never stall the control loop.