High availability on cloud with HA-OSCAR

Authors:
Thanadech Thanakornworakij;Rajan Sharma;Blaine Scroggs;Chokchai (Box) Leangsuksun;Zeno Dixon Greenwood;Pierre Riteau;Christine Morin
Affiliations:
College of Engineering & Science, Louisiana Tech University, Ruston, LA;College of Engineering & Science, Louisiana Tech University, Ruston, LA;College of Engineering & Science, Louisiana Tech University, Ruston, LA;College of Engineering & Science, Louisiana Tech University, Ruston, LA;College of Engineering & Science, Louisiana Tech University, Ruston, LA;Université de Rennes 1, IRISA, France and INRIA Rennes --- Bretagne Atlantique, France;INRIA Rennes --- Bretagne Atlantique, France
Venue:
Euro-Par'11 Proceedings of the 2011 international conference on Parallel Processing - Volume 2
Year:
2011

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Abstract

Cloud computing provides virtual resources so that end-users or organizations can buy computing power as a public utility. Cloud service providers however must strive to ensure good QoS by offering highly available services with dynamically scalable resources. HA-OSCAR is an open source High Availability (HA) solution for HPC/cloud that offers component redundancy, failure detection, and automatic fail-over. In this paper, we describe HA-OSCAR as a cloud platform and analyze system availability of two potential cloud computing systems, OSCAR-V cluster and HA-OSCAR-V. We also explore our case study to improve Nimbus, a popular cloud IaaS toolkit. The results show that the system that deploys HA-OSCAR has a significantly higher degree of availability.