實作SOA為基礎的入口網站與服務使用配發機制

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Title:	實作SOA為基礎的入口網站與服務使用配發機制
Other Titles:	Implementation of a SOA-based Service Deployment Platform with Portal
Authors:	尤士齊 Yu, Shih-Chi
Contributors:	楊朝棟 Yang, Chao-Tung 東海大學資訊工程學系
Keywords:	服務流程;服務導向架構;資源仲介;格網計算 Service Workflow;SOA;Grid Computing
Date:	2010
Issue Date:	2011-01-05T08:42:30Z (UTC)
Abstract:	格網提供了強大的計算能力與儲存空間，在網格上面發展了資源監控與工作排程是為了讓格網本身的效能提高，可以將資源利用的效率更好，而後又有人提出了多個網格之間資源的共享與分配的機制，資源仲介作為中介層在不同資源中為開發者提供了更簡便的方式來存取，我們有了越來越多得資源時，開始重新去探討資源的需求來源，如何將這些資源讓使用者可以使用而且是更有效率的使用，所以才發展出了服務導向這樣的概念，原先這樣的需求是從商業中被挖掘出來的，並用將近十年間的技術，嘗試在不同平台不同開發語言環境不同使用者之中尋找一溝通的橋樑，服務導向提供了這樣的機制，讓服務提供者與服務使用者之間有一個標準可以遵循，解決溝通的問題，就會探討到效能問題，在之後就會提到可靠度的問題，這些都解決了那才是應用問題，在這篇論文中使用了服務導向架構來做服務導向，在格網上的資源仲介前端部屬服務，用來存取格網資源，另外使用服務導向的特性也在Hadoop上面做了其他服務介面，提供Hadoop本身副本的特性，提供可靠的檔案存取服務，以上兩種都是集中式的服務，那使用者端方面的服務採用的也是服務導向介面，讓使用者也是服務提供者這樣的概念去開發的，最後將這些服務註冊在使用者入口網站，使用者可以在網站上直接去使用這些服務，而服務提供者可以在網站上設計服務流程並且管理。 In recent years, Grid grows rapidly, it support huge computing capability and storage, it has two important function which is concentrate on get more performance, that is resource monitor and job schedule, by the way it's also combine multiple grid to share each resource and design a algorithm of job submit that comes out a Resource Broker to manage grid. When we get more resources, we need to think about how can we use these, and how can user use resources more efficient, for this reason we use Service Oriented Architecture to provide flexible and usable environment. SOA come up with commercial requirement, it integration many technique cross over ten years to find the solution in different platform, different programming language and different user. The SOA provide the connection with a protocol between service provider and service user. After this, the performance problem and the reliability problem are reviewed. Finally we apply SOA into our Grid and Hadoop platform. Service is like an interface in front of Resource Broker in Grid, Resource Broker is a middleware that provide function for developer. The Hadoop has a characteristic of file replication, it provide a reliability of file. Service provided on Grid and Hadoop are centralized. We design a portal, user can use services on it or service provider can register his service for user, and portal also provide service workflow design, that user can use services each by each job's result and manage it.
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