[CONF] Apache Labs: CloudsGlossary (page edited)

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Page Edited : labs : CloudsGlossary CloudsGlossary has been edited by Robert Burrell Donkin (May 11, 2009). Change summary: Add Hadoop entry (View changes) Content: Glossary Get Involved Fill in the gaps Create an issue Or discuss on list Brief descriptions of terms 1 Footnotes Reference Notes 1 With any more involved discussions linked Contents Blending Cloud Computing Capacity On Demand CoD Computing On Demand, CoD, Capacity On Demand Clustering Engineer For Serendipity Events HA Hadoop High Availability IaaS Infrastructure As A Service, IaaS Messaging, Events Ninja Ops Team PaaS Plastic Limit Platform As A Service, PaaS REST, Representational State Transfer ROA Representational State Transfer Resource Oriented Architecture, ROA SaaS Software As A Service, SaaS Utility Computing Blending Mixing cloud offerings with different providers and paradigms See CloudsBlending Cloud Computing "Architects like to use clouds in their diagrams to represent areas of the net where complexity is too high to draw. A reasonable practical definition for Cloud Computing is 'that computing which lives in those clouds'." Michael Peeters (apocryphally), Cloud Computing: Legal Issues For Business Users 2009 Capacity On Demand See Computing On Demand CoD See Computing On Demand Computing On Demand, CoD, Capacity On Demand Dynamic provisioning of computational resources CloudsComputingOnDemand Clustering A computer cluster is a collection of the interconnected computers (computing machines) under united administration ClusterGate , definition See CloudsUtilityComputing#UtilityVsCluster Engineer For Serendipity Engineer for serendipity Roy Fielding , email communication Also REST Also CloudsPictureTheJigsaw#DesignGlobalCodeLocal Events Okay, Houston, we've had a problem here. John Swigert, Jr. , Apollo 13 See Messaging HA See High Availability Hadoop An Apache project established to develop a distributed computing platform. See CloudsApacheHadoop High Availability the availability of resources in a computer system, in the wake of component failures in the system IEEE Task Force On Cluster Computing , definition See Clustering IaaS See Infrastructure As A Service Infrastructure As A Service, IaaS Rental of a computational system over the web CloudsEverythingAsAService#iaas Messaging, Events A loosely coupled style centered on indirect message passing 2 between actors 3 CloudsEventingAndMessagingMissingFromJigsaw Also REST Footnotes Reference Notes 2 As opposed to direct request-response 3 Note that implementations are often layered on request-response chains Ninja Ops Team Operators that combine skill, precision and invisibility CloudsNinjaOpsTeam PaaS See Platform As A Service Plastic Limit On demand computing is limited by the credit which the provider is willing to offer CloudsComputingOnDemand#plasticlimit Platform As A Service, PaaS Rental of a container for an application over the web CloudsEverythingAsAService#paas REST, Representational State Transfer REST provides a set of architectural constraints that, when applied as a whole, emphasizes scalability of component interactions, generality of interfaces, independent deployment of components, and intermediary components to reduce interaction latency, enforce security, and encapsulate legacy systems. Roy Fielding, PhD Dissertation CloudsApacheCloudComputingEdition#REST Also ResourceOrientedArchitecture ROA See ResourceOrientedArchitecture Representational State Transfer See REST Resource Oriented Architecture, ROA It's just four concepts: Resources Their names (URIs) Their representations The links between them and four properties: Addressability Statelessness Connectedness A uniform interface Loenard Richardson & Sam Ruby, RESTful Web Services REST SaaS See Software As A Service Software As A Service, SaaS Rental of an application over the web CloudsEverythingAsAService#saas Utility Computing Nobody knows what "utility computing" is, but everyone has heard of "grid computing" • Grid computing implies sharing across resources owned by multiple, independent organizations • Utility computing implies sharing one owner's resources by multiple, independent customers Allen Wittenauer , Deploying Grid Services Using Hadoop 2008 CloudsUtilityComputing

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