# A Distributed Architecture for Edge Service Orchestration with Guarantees

## TL;DR

This paper introduces Senate, a distributed architecture for edge service orchestration that guarantees efficient resource allocation using the DORA algorithm, supporting diverse services with proven performance bounds.

## Contribution

The paper presents Senate, a novel distributed architecture for orchestrating heterogeneous edge services, and DORA, an approximation algorithm with guaranteed convergence and optimality bounds.

## Key findings

- DORA guarantees a (1-1/e)-approximation of Pareto optimal resource assignment.
- Senate effectively manages heterogeneous services over edge infrastructure.
- Prototype evaluation shows practical benefits of the proposed architecture.

## Abstract

The Network Function Virtualization paradigm is attracting the interest of service providers, that may greatly benefit from its flexibility and scalability properties. However, the diversity of possible orchestrated services, rises the necessity of adopting specific orchestration strategies for each service request that are unknown a priori. This paper presents Senate, a distributed architecture that enables precise orchestration of heterogeneous services over a common edge infrastructure. To assign shared resources to service orchestrators, Senate uses the Distributed Orchestration Resource Assignment (DORA), an approximation algorithm that we designed to guarantee both a bound on convergence time and an optimal (1-1/e)-approximation with respect to the Pareto optimal resource assignment. We evaluate advantages of service orchestration with Senate and performance of DORA through a prototype implementation.