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Increasing the Availability of Internet2 Applications and Services
G. Carpenter, G. Goldszmidt, Micah Beck, Martin Swany , Bert Dempsey, Debra Weiss

Global Internet 99, Rio de Janeiro, Brazil, December, 1999

Available as: .PDF

Abstract:
We describe the methods of content replication and service resolution location that we plan to use for the Internet2 Distributed Storage Infrastructure (I2-DSI) project. The resolution service will take into account a variety of factors, so that its choice improves the global welfare of the applications. If the resolution is done poorly, applications will not be able to take full advantage of the I2-DSI resources and will likely underperform. We propose combining two resolution technologies to address this problem: SonarDNS and Narwhal. SonarDNS measures and orders resources based on a variety of criteria, and exports its recommendations via DNS. Narwhal provides an application-transparent proxy that can configure, monitor, manage and provide additional functionality to network applications. We intend to deploy extremely lean servers on the periphery “ramp” of I2 that integrate the functionality of both components. Such co-location provides a focal point for administrative control, traffic monitoring, implementation of differentiated services, and enforcement of traffic policies. Content will be replicated using Rsync+, an efficient technique that leverages an existing differential file update algorithm and enables the use of multicast transport solutions for performance and scalability.

Citation Info:

Authors: G. Carpenter, G. Goldszmidt, Micah Beck, Martin Swany , Bert Dempsey, Debra Weiss
Title: Increasing the Availability of Internet2 Applications and Services
Conference: Global Internet 99
Year: 1999
Month: December
Address: Rio de Janeiro, Brazil
Where: http://loci.eecs.utk.edu/publications/1999_Increasing_the_Availability_of_I2_Apps.php
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