'Replicas' diaporamas de présentation

MobilityFirst Project Update NSF Meeting March 11, 2013

MobilityFirst Project Update NSF Meeting March 11, 2013. D. Raychaudhuri WINLAB, Rutgers University ray@winlab.rutgers.edu. Introduction : Progress Highlights. MobilityFirst project now moving from design phase to experimental evaluation and GENI/EC2 deployment

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Consistency and Replication

Consistency and Replication. Why Replicate Data?. Enhance reliability. Improve performance. But: if there are many replicas of the same thing, how do we keep all of them up-to-date? How do we keep the replicas consistent ? Consistency can be achieved in a number of ways.

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From Viewstamped Replication to BFT

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From Viewstamped Replication to BFT

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Problem

Problem. Computer systems provide crucial services Computer systems fail natural disasters hardware failures software errors malicious attacks. client. server. Need highly-available services. client. server. Replication. unreplicated service. replicated service. client. server

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High Availability options Explored with SQL Server

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Pond: the OceanStore Prototype

Pond: the OceanStore Prototype. Sean Rhea, Patrick Eaton, Dennis Geels, Hakim Weatherspoon, Ben Zhao, and John Kubiatowicz. {srhea,eaton,geels,hweather,ravenben,kubitron}@cs.berkeley.edu. University of California, Berkeley. OceanStore Assumptions. Untrusted Infrastructure:

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ZYZZYVA: SPECULATIVE BYZANTINE FAULT TOLERANCE

ZYZZYVA: SPECULATIVE BYZANTINE FAULT TOLERANCE. R.Kotla, L. Alvisi, M. Dahlin, A. Clement and E. Wong U. T. Austin. Best Paper Award at SOSP 2007. Motivation. Why implement Byzantine Fault-Tolerant replication? Increasing value of data and decreasing cost of hardware

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Maintaining Replicas in Unstructured P2P Systems

Maintaining Replicas in Unstructured P2P Systems. CoNEXT, Madrid, 12/11/2008. Christof Leng, TU Darmstadt Wesley W. Terpstra, TU Darmstadt Bettina Kemme, McGill University Wilhelm Stannat, TU Darmstadt Alejandro P. Buchmann, TU Darmstadt. http://www.bubblestorm.net

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Pond: the OceanStore Prototype

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Content Distribution Network

Content Distribution Network. Jesse Szwedko Callen Shaw Heather Friedberg. Motivation. Deliver streams to the most clients while minimizing cost Cost is defined as the tradeoff between client QoS and resource usage of the CDN

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AN INTRODUCTION TO:

TECHNICAL. GUIDELINES. from the leading resource for education and information in the repair industry. ICRI Technical Guideline No. 310.2-1997. AN INTRODUCTION TO:. Surface Preparation. Selecting ad Specifying Concrete Surface Preparation for Sealers, Coatings and Polymer Overlays.

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A technique to increase the conf. exploration

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