Rackspace Knowledge Center

This paper is an excerpt from the book "The Authoritative Guide to Hadoop", published by Tsinghua University Press, which is the author of Tom White, the School of Data Science and engineering, East China Normal University. This book begins with the origins of Hadoop, and integrates theory and practice to introduce Hadoop as an ideal tool for high-performance processing of massive datasets. The book consists of 16 chapters, 3 appendices, covering topics including: Haddoop;mapreduce;hadoop Distributed file system; Hadoop I/O, MapReduce application Open ...

A, virtualization virtualization refers to the ability to simulate multiple virtual machines on the same physical machine. Each virtual machine has a separate processor, memory, hard disk, and network interface logically. The use of virtualization technology can improve the utilization of hardware resources, so that multiple applications can run on the same physical machine with each other isolated operating environment. There are also different levels of virtualization, such as virtualization at the hardware level and virtualization at the software level. Hardware virtualization refers to the simulation of hardware to obtain a similar to the real computer environment, you can run a complete operating system. In the hardware virtual ...

Do you still remember where you were on the August 1, 1981 12:01 noon? Don't tell me you don't remember such an important moment in the history of the world. The change of day changed the whole world completely-on that day, MTV officially appeared, the famous singer Buggles "television eliminated broadcast singer" first broadcast, marked the demise of radio music. What a wonderful day it is. 　　I was always amazed when the older generation said how they used to listen to music on the radio. But things don't evolve as people think. MTV didn't ...

Cloud computing War heating server OEM bet OpenStack 16 hours ago | Times Read | Source Data Center knowledge| 0 Reviews | Author Jason Verge Cloud computing Hewlett-Packard Dell Ibmopenstack Open Source Rackspace Summary: The cloud computing battle is getting fiercer, and in recent years big cloud makers have used their influence to squeeze profits, threatening commercial servers. Cloud computing has changed the economy of the server world, and some famous server vendors ...

In the past, when the concept of cloud computing had not come out, the service providers needed to rely on the strong help of their companies to build their own data centers. But in this cloud era, the ubiquitous application of cloud computing has made the reality quite the opposite. In a special discussion at the interop show, Rackspace's chief technology officer, John Angues, made the point that in the past seven years, people have been paying close attention to the specifics of enterprise development and are doing their best to ...

Original: Openlogic is launching a platform-as-a-service offering "aims to give users" flexibility that many     About Infrastructure-as-a-service without the work. C ...

The European Union's digital Agenda Committee has published an article called "Releasing Europe's cloud computing potential", explaining how the cloud adapts to Europe's future. According to the http://www.aliyun.com/zixun/aggregation/34787.html > Huffington Post website, the article outlines a series of tools designed to drive European businesses and the public sector into the cloud. The goal is to create 250 million jobs for Europe and to increase GDP to 160 billion euros in this single market by 2020. The study says ...

With the IT world moving into another new platform-client/server to cloud-on-demand services-many business users are pondering how to adjust or upgrade their systems to meet the needs of the internet era. At present, most large enterprises have been able to cope with petabytes (1 pb=1024 TB) data processing and storage transaction requirements, and a large number of data loads are gradually transitioning to a growing number of small and medium enterprise user business. They are discovering in practical applications that forward-looking business data can help them anticipate future market trends and help them ...

The data center is becoming the "information power plant" of the new era and becoming the infrastructure of knowledge economy. Over the past year, "Big Data" is becoming a hot topic. The development of information technology in half a century mainly solves the storage, processing and application of "structural" data in cloud computing. The characteristics of "structural" data are like you go to the bank to access money, the bank's computer system records your name, after the name is your access to the amount of money, time, type and other information. These data are characterized by "strong logic" and each "cause" has "fruit". However, in real society, a lot of data is actually not "obvious ..."

There are significant differences in performance, complexity, and speed between Amazon and Windows Azure,iaas cloud. The information on the cloud is always quite simple: hand over your worries, IT managers and we will help you solve everything. Forget to install the server and the engine backup that needs to be double-clicked, and don't worry about thousands of things going wrong. Just give us your credit card number and your data and we can do everything for you. In the past few months, I have been living in a dream, where I built a huge computer king across the world ...