The DISCOVERY Initiative - Overcoming Major Limitations of Traditional Server-Centric Clouds by Operating Massively Distributed IaaS Facilities

Adrien Lebre 1, 2 Jonathan Pastor 1, 2 . The Discovery Consortium 3, 4, 5, 6, 1
1 ASCOLA - Aspect and composition languages
LINA - Laboratoire d'Informatique de Nantes Atlantique, Département informatique - EMN, Inria Rennes – Bretagne Atlantique
3 ASAP - As Scalable As Possible: foundations of large scale dynamic distributed systems
Inria Rennes – Bretagne Atlantique , IRISA-D1 - SYSTÈMES LARGE ÉCHELLE
4 AVALON - Algorithms and Software Architectures for Distributed and HPC Platforms
Inria Grenoble - Rhône-Alpes, LIP - Laboratoire de l'Informatique du Parallélisme
5 KerData - Scalable Storage for Clouds and Beyond
Inria Rennes – Bretagne Atlantique , IRISA-D1 - SYSTÈMES LARGE ÉCHELLE
6 MYRIADS - Design and Implementation of Autonomous Distributed Systems
Inria Rennes – Bretagne Atlantique , IRISA-D1 - SYSTÈMES LARGE ÉCHELLE
Abstract : Instead of the current trend consisting of building larger and larger data centers (DCs) in few strategic locations, the DISCOVERY initiative proposes to leverage any network point of presences (PoP, i.e., a small or medium-sized network center) available through the Internet. The key idea is to demonstrate a widely distributed Cloud platform that can better match the geographical dispersal of users. This involves radical changes in the way resources are managed, but leveraging computing resources around the end-users will enable to deliver a new generation of highly efficient and sustainable Utility Computing (UC) platforms, thus providing a strong alternative to the actual Cloud model based on mega DCs (i.e. DCs composed of tens of thousands resources). Critical to the emergence of such distributed Cloud platforms is the availability of appropriate operating mechanisms. Although, some of protagonists of Cloud federations would argue that it might be possible to federate a significant number of micro-Clouds hosted on each PoP, we emphasize that federated approaches aim at delivering a brokering service in charge of interacting with several Cloud management systems, each of them being already deployed and operated independently by at least one administrator. In other words, current federated approaches do not target to operate, remotely, a significant amount of UC resources geographically distributed but only to use them. The main objective of DISCOVERY is to design, implement, demonstrate and promote a unified system in charge of turning a complex, extremely large-scale and widely distributed infrastructure into a collection of abstracted computing resources which is efficient, reliable, secure and friendly to operate and use. After presenting the DISCOVERY vision, we explain the different choices we made, in particular the choice of revising the OpenStack solution leveraging P2P mechanisms. We believe that such a strategy is promising considering the architecture complexity of such systems and the velocity of open-source initiatives.
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Rapport
[Research Report] RR-8779, Inria. 2015, pp.14
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Adrien Lebre, Jonathan Pastor, . The Discovery Consortium. The DISCOVERY Initiative - Overcoming Major Limitations of Traditional Server-Centric Clouds by Operating Massively Distributed IaaS Facilities. [Research Report] RR-8779, Inria. 2015, pp.14. <hal-01203648v2>

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