An object store for Fog infrastructures based on IPFS and a Scale-Out NAS

Bastien Confais 1, 2 Adrien Lebre 3, 4 Benoît Parrein 1, 2
1 RIO - Réseaux pour l'Internet des Objets
LS2N - Laboratoire des Sciences du Numérique de Nantes
4 ASCOLA - Aspect and Composition Languages
Inria Rennes – Bretagne Atlantique , LS2N - Laboratoire des Sciences du Numérique de Nantes
Abstract : The Cloud Computing approach concentrates the computing power in few datacenters. The high latency to reach the platform makes this architecture not well suited for the Internet of Things. The Fog and Edge Computing propose to place servers near the users. In this context, we propose a first-class object store service for Fog/Edge facilities. Our proposal is built with Scale-out Network Attached Storage systems (NAS) and IPFS, a BitTorrent-based object store spread throughout the Fog/Edge infrastructure. Without impacting the IPFS advantages particularly in terms of data mobility, the use of a Scale-out NAS on each site reduces the inter-site exchanges that are costly but mandatory for the metadata management in the original IPFS implementation. Several experiments conducted on Grid'5000 testbed are analysed and confirmed, first, the benefit of using an object store service spread at the Edge and second, the importance of mitigating inter-site accesses. The paper concludes by giving a few directions to improve the performance and fault tolerance criteria of our Fog/Edge Object Store Service.
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Bastien Confais, Adrien Lebre, Benoît Parrein. An object store for Fog infrastructures based on IPFS and a Scale-Out NAS. RESCOM 2017, Jun 2017, Le Croisic, France. pp.2. ⟨hal-01559065⟩

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