Authors:
Sumeth Lerthirunwong
1
;
Hitoshi Sato
1
and
Satoshi Matsuoka
2
Affiliations:
1
Tokyo Institute of Technology, Japan
;
2
Tokyo Institute of Technology and National Institute of Informatics, Japan
Keyword(s):
Cloud Computing, Inter-Cloud, Federated Cloud, Overlay Network, Structured Network, Churn, Consistency of Global Information.
Related
Ontology
Subjects/Areas/Topics:
Cloud Computing
;
Cloud Computing Architecture
;
Cloud Deployment Models: Public/Private/Hybrid Cloud
;
Cloud Interoperability
;
Fundamentals
Abstract:
Although the Inter-Cloud environment enables new possibilities for several data-intensive e-Sciences applications, some challenging issues such as dynamic change of computing resources and management complexity of large-scale overlay network remain. The structured peer-to-peer overlay network approach is hereby adapted onto the Inter-Cloud environment to manage the consistency of the global information among clouds and enhance the churn resistance. We propose a multi-ring structured overlay network for the Inter-Cloud environment, in which nodes are organized into one sub-ring and all sub-rings are then composed to form a large single ring structured network. The global information is managed within the sub-ring so that the cost and the complexity for managing the global information can be reduced significantly. We evaluate the efficiency of our proposed methodology by using overlay network simulator and compare the results with other existing overlay networks. Moreover, several scen
arios are further analyzed to show the effectiveness in real-world cases. The results indicate that, with our approach, the management cost for global information is reduced while the stability of the overlay network under churn can be maintained. The average reachability of network under churn is more than 89.2% which is better than other structured networks and by considering locality of node, the number of the distant messages also decreases by 58.4% with respect to the overall messages.
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