Oakestra white paper: An Orchestrator for Edge Computing

TL;DR

Oakestra is a novel hierarchical edge orchestration framework that improves resource efficiency and flexibility by supporting dynamic, multi-operator edge environments, outperforming existing solutions in reducing CPU and memory usage.

Contribution

This paper introduces Oakestra, a new federated, hierarchical orchestration system tailored for edge computing, addressing the limitations of datacenter-focused platforms.

Findings

Achieves approximately 10x reduction in CPU consumption.

Achieves about 30% reduction in memory usage.

Demonstrates significant benefits over state-of-the-art solutions in tests.

Abstract

Edge computing seeks to enable applications with strict latency requirements by utilizing compute resources deployed closer to the users. The diverse, dynamic, and constrained nature of edge infrastructures necessitates a flexible orchestration framework that dynamically supports application QoS requirements. However, existing state-of-the-art orchestration platforms were designed for datacenter environments and make strict assumptions about underlying infrastructures that do not hold for edge computing. This work proposes a novel hierarchical orchestration framework specifically designed for supporting service operation over edge infrastructures. Through its novel federated cluster management, delegated task scheduling, and semantic overlay networking, our system can flexibly consolidate multiple infrastructure operators and absorb dynamic variations at the edge. We comprehensively evaluate our proof-of-concept implementation -- Oakestra -- against state-of-the-art solutions in both controlled and realistic testbeds and demonstrate the significant benefits of our approach as we achieve approximately 10x and 30% reduction in CPU and memory consumption, respectively.