This repository houses all the components of Service Layer Traffic Engineering (SLATE), a system that globally optimizes the flow of requests for end-to-end application latency and cost deployed in multi-region enviroments.
See the HotNets '24 Paper 🚀🚀🚀🚀🚀
To find the multi-cluster survey results, go to multicluster survey result.pdf in the home directory of this repo.
There are three major components:
- Global controller:
/global-controller - Data plane:
/wasm-plugins/slate-plugin - Cluster controller:
/cluster-controller(optional)
This system is tested on Istio.
The workflow is as such:
- The data plane in every region collects realtime metrics about current load (RPS) and experienced latency of those requests.
- The global controller builds a load to latency model for each service over time. When feasible, it uses this model in a Mixed-Integer Linear Program and solves for optimal request flow, minimizing latency. This solution is expressed as rules that are pushed to the data plane.
- The data plane enforces these rules.