1 intro-to-distributed

1 intro-to-distributed - potentially conflicting. Failures...

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Distributed Systems Brief Overview CNT 5517-5564 Mobile Computing Sumi Helal
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Distributed System Values • Reliability • Availability • Dependability • Security • Performance: response time, throughput, etc • Scalability: vertical (concurrency) and horizontal (distribution) Fault-tolerance
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Distributed System Values, cont’d • Consistency • Up-to-date-ness • Adaptability • Reconfigureability • Manageability • Extensibility
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Distributed Systems Intricacies Synchronization : multiple clocks (difficult to agree on exact time) Concurrency : multiple simultaneous accesses
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Unformatted text preview: potentially conflicting. Failures : high probability of failures (too many components). Complex failure modes (single, multiple simultaneous, network partition, ) Consensus : difficult to reach consensus (odds includes failures, lack of synchronization, ) more Distributed Computing Models Client/Server Approach Multi-tier Approach Peer-to-Peer Approach Agent based systems Mobile Code (Applets, mobile agents, . .) Service-oriented computing Service registration/discovery Service composition...
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This note was uploaded on 10/19/2009 for the course CNT 5517 taught by Professor Helal during the Fall '09 term at University of Florida.

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1 intro-to-distributed - potentially conflicting. Failures...

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