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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/65184
標題: | 混合雲之工作分派 Task Dispatch of Hybrid Cloud |
作者: | Wei-Hsu Chen 陳煒栩 |
指導教授: | 郭大維(Tei-Wei Kuo) |
共同指導教授: | 蘇雅韻(Ya-Yunn Su) |
關鍵字: | 雲端計算,混合雲,成本,工作分派, cloud computing,hybrid cloud,cost,dispatch, |
出版年 : | 2012 |
學位: | 碩士 |
摘要: | 許多企業或是組織在客戶急遽增加的時候,都會面臨擴增電腦設備(IT infrastructure)的問題。建立一個新的資料中心(data center)需要花費龐大的資金,而且不彈性的資源使用方式是非常不符合經濟效益的。 近年來許多公司已經將雲端計算(cloud computing)當作是部分的替代方案,但是很多公司原本就擁有了自己的計算設備,因此這些近端叢集和遠端雲端計算形成了一個混合雲系統(hybrid cloud system)。近端叢集有著很短的延遲(latency),但是資源有限,而遠端雲端計算雖然有很長的延遲,但卻有著無限的資源。如何能夠結合雲端運算跟既有的近端叢集來讓系統的效能增加並且符合成本效益,變成了一個重要的議題。在此篇研究中,我們設計了混合雲系統,可以讓企業公司在既有的近端叢集上跟遠端雲端上執行使用者的應用程式。此系統有一個資料庫,保存了應用程式的許多資料,讓分派者(dispatcher)可以根據此資料來排成工作到近端叢集或是遠端雲端。使用者可以對自己的應用程式設定期限(deadline)的需求,分派者將會安排出工作時程(schedule)來滿足期限的限制。此外,站在公司企業的觀點,混合雲系統會將執行工作所需的花費降到最低。我們在亞馬遜雲端服務(Amazon Web Services)上面實驗混合雲系統,並且利用合理的成本得到大量的效能提升。 Many enterprises or organizations face the problems to augment their IT infrastructure to serve fast growing clients. It takes huge cost to build up a new data center and the non-elasticity of resources makes it very cost-inefficient. Recent years, these companies follow to use cloud computing as parts of solutions; however, many of the companies already have existing computing infrastructure, and thus the local clusters and the remote cloud form a hybrid cloud system. The local cluster has short latency but limited resources, while the remote cloud computing has long latency but with unlimited resources. How to leverage the cloud computing with existing local clusters to improve performance cost-effectively becomes an important issue. In this work, we design a hybrid cloud system that enables the enterprises to run the users' applications on both existing local clusters and the remote cloud. The system maintains a database that records necessary information about applications, and the dispatcher schedules tasks to local clusters or to the remote cloud based on the database. The users can specify their deadline requirements for their application, and the dispatcher would derive a schedule to meet their deadline constraints. Moreover, in the perspective of enterprises, the hybrid cloud would minimize the total cost to execute their workloads. We evaluated the hybrid cloud system on the Amazon Web Services and our system gained great performance improvement with a reasonable total cost. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/65184 |
全文授權: | 有償授權 |
顯示於系所單位: | 資訊工程學系 |
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