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Proceedings ArticleDOI

Dynamo: amazon's highly available key-value store

TLDR
D Dynamo is presented, a highly available key-value storage system that some of Amazon's core services use to provide an "always-on" experience and makes extensive use of object versioning and application-assisted conflict resolution in a manner that provides a novel interface for developers to use.
Abstract
Reliability at massive scale is one of the biggest challenges we face at Amazon.com, one of the largest e-commerce operations in the world; even the slightest outage has significant financial consequences and impacts customer trust. The Amazon.com platform, which provides services for many web sites worldwide, is implemented on top of an infrastructure of tens of thousands of servers and network components located in many datacenters around the world. At this scale, small and large components fail continuously and the way persistent state is managed in the face of these failures drives the reliability and scalability of the software systems.This paper presents the design and implementation of Dynamo, a highly available key-value storage system that some of Amazon's core services use to provide an "always-on" experience. To achieve this level of availability, Dynamo sacrifices consistency under certain failure scenarios. It makes extensive use of object versioning and application-assisted conflict resolution in a manner that provides a novel interface for developers to use.

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Journal ArticleDOI

Sustainable Offloading in Mobile Cloud Computing: Algorithmic Design and Implementation

TL;DR: This article gathers and analyzes recent energy-aware offloading protocols and architectures, as well as scheduling and balancing algorithms employed toward Cloud green computing and provides a comparison among system architectures by identifying their most notable advantages and disadvantages.
Patent

Reducing Power Consumption of Distributed Storage Systems

TL;DR: In this article, the authors describe a storage system which is adapted to reduce its power consumption at times of low load by reducing the number of active versions of the stored data, where data to be stored in the storage system is divided into chunks and each chunk is replicated on a number of different servers.
Proceedings Article

Building on Quicksand

TL;DR: The patterns of probabilistic execution and eventual consistency are applicable to intermittently connected application patterns and may soon yield a way for applications to express requirements for a “looser” form of consistency while providing availability in the face of ever larger failures.
Journal ArticleDOI

SLOG: serializable, low-latency, geo-replicated transactions

TL;DR: Experiments find that SLOG can reduce latency by more than an order of magnitude relative to state-of-the-art strictly serializable geo-replicated database systems such as Spanner and Calvin, while maintaining high throughput under contention.
Proceedings ArticleDOI

Distributed resource management across process boundaries

TL;DR: Wisp is designed, a framework for building SOAs that transparently adapts rate limiters and request schedulers system-wide according to operator policies to satisfy end-to-end goals while responding to changing system conditions.
References
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Proceedings ArticleDOI

Chord: A scalable peer-to-peer lookup service for internet applications

TL;DR: Results from theoretical analysis, simulations, and experiments show that Chord is scalable, with communication cost and the state maintained by each node scaling logarithmically with the number of Chord nodes.
Book ChapterDOI

Time, clocks, and the ordering of events in a distributed system

TL;DR: In this paper, the concept of one event happening before another in a distributed system is examined, and a distributed algorithm is given for synchronizing a system of logical clocks which can be used to totally order the events.
Book ChapterDOI

Pastry: Scalable, Decentralized Object Location, and Routing for Large-Scale Peer-to-Peer Systems

TL;DR: Pastry as mentioned in this paper is a scalable, distributed object location and routing substrate for wide-area peer-to-peer ap- plications, which performs application-level routing and object location in a po- tentially very large overlay network of nodes connected via the Internet.
Journal ArticleDOI

Time, clocks, and the ordering of events in a distributed system

TL;DR: In this article, the concept of one event happening before another in a distributed system is examined, and a distributed algorithm is given for synchronizing a system of logical clocks which can be used to totally order the events.
Journal ArticleDOI

The Google file system

TL;DR: This paper presents file system interface extensions designed to support distributed applications, discusses many aspects of the design, and reports measurements from both micro-benchmarks and real world use.
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