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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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Proceedings ArticleDOI

YCSB++: benchmarking and performance debugging advanced features in scalable table stores

TL;DR: YCSB++ is described, a set of extensions to the Yahoo! Cloud Serving Benchmark that includes multi-tester coordination for increased load and eventual consistency measurement, multi-phase workloads to quantify the consequences of work deferment and the benefits of anticipatory configuration optimization, and abstract APIs for explicit incorporation of advanced features in benchmark tests.
Journal ArticleDOI

Coordination avoidance in database systems

TL;DR: A formal framework is developed that determines whether an application requires coordination for correct execution by operating on application-level invariants over database states and shows that many are invariant confluent and therefore achievable without coordination.
Proceedings ArticleDOI

NoSQL databases: MongoDB vs cassandra

TL;DR: This paper is to compare and evaluate two of the most popular NoSQL databases: MongoDB and Cassandra.
Proceedings ArticleDOI

ChainReaction: a causal+ consistent datastore based on chain replication

TL;DR: Experimental results show that ChainReaction has better performance in read intensive workloads while offering competitive performance for other workloads and it is shown that the solution requires less metadata when compared with previous work.
Proceedings ArticleDOI

Serving large-scale batch computed data with project Voldemort

TL;DR: Project Voldemort, a general-purpose distributed storage and serving system inspired by Amazon's Dynamo, is extended to support bulk loading terabytes of read-only data, and constructs the index offline, by leveraging the fault tolerance and parallelism of Hadoop.
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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