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According to sort Benchmark's latest news, Databricks's spark tritonsort two systems at the University of California, San Diego, 2014 in the Daytona graysort tied sorting contest. Among them, Tritonsort is a multi-year academic project, using 186 EC2 i2.8xlarge nodes in 1378 seconds to complete the sorting of 100TB data, while Spark is a production environment general-purpose large-scale iterative computing tool, it uses 207 ...

File Transfer Protocol (FTP) is bound to perish File Transfer Protocol (FTP) is defined in RFC 959 and released in October 1985. File Transfer Protocol (FTP) is designed to be a cross-platform, simple, and easy to implement protocol. File Transfer Protocol (FTP) has a long history of evolution, is one of the most important applications on the Internet, but today, has been declining. The author of this paper enumerates some shortcomings of File Transfer Protocol (FTP). 1. Data transmission mode is unreasonable regardless of the contents of the file itself, blindly using as ...

In large data technology, Apache Hadoop and MapReduce are the most user-focused. But it's not easy to manage a Hadoop Distributed file system, or to write MapReduce tasks in Java. 　　 　　Then Apache hive may help you solve the problem. The Hive Data Warehouse tool is also a project of the Apache Foundation, one of the key components of the Hadoop ecosystem, which provides contextual query statements, i.e. hive queries ...

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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 ...

While Microsoft has not yet made clear how to incorporate Windows Azure pricing into corporate customers who have signed a long-term contract with the company, Microsoft executives say Microsoft intends to make it easier for these customers to take advantage of Microsoft's new cloud computing services as soon as this week. At Microsoft's Global partners conference last week, Microsoft said Azure would be officially commercially available in November and would set a price policy for cloud-based applications and development platforms. Microsoft also said that Azure would be part of Microsoft's product package through volume licensing contracts ...

Hacker attacks are getting stronger. The number of vulnerabilities in the business computing system over the past year is almost the same as in previous years, but the frequency with which hackers take a locked attack against these vulnerabilities is increasing, that is to say, the failure to repair or update the systems, which is bound to expose the safety of enterprises to high-risk groups Nearly half of all security vulnerabilities are not core systems, but are most likely to be in Web application, or plug-in portal interactive services sites, but these vulnerabilities pose a great threat to the overall security of the enterprise. Network attack packs and botnets, which can easily be purchased on the web and used to attack corporate websites, are lightly caused ...

In "2013 Zhongguancun Big Data Day" Big Data Wisdom City Forum, cloud Human Science and Technology CEO Wu Zhuhua brings to the theme "about intelligent city thinking-real-time large data processing opportunities and challenges" speech. He believes that the opportunities for large data in various industries are as follows: Financial securities (high-frequency transactions, quantitative transactions), telecommunications services (support systems, unified tents, business intelligence), Energy (Power plant power grid Monitoring, information collection and analysis of electricity), Internet and electricity business (user behavior analysis, commodity model analysis, credit analysis), other industries such as Intelligent city, Internet of things. Wu Zhuhua ...

Hacker attacks more powerful wisdom security network in the past year in the commercial computing system, the number of loopholes in the amount of, although similar to previous years, however, hackers targeted these vulnerabilities to take the frequency of locking attacks is increasing, that is, not patched or updated system vulnerabilities, is bound to expose the safety of enterprises in high-risk groups. Nearly half of all security vulnerabilities are not core systems, but are most likely to be in Web application, or plug-in portal interactive services sites, but these vulnerabilities pose a great threat to the overall security of the enterprise. Network attack packs and botnets, which can be easily purchased on the web and used to attack businesses ...

"Virtual Wisdom: VMware vsphere" 1th chapter of the purpose and nature of enterprise virtualization, the focus of this chapter is the basic knowledge of virtualization, but also the current and virtualization of the most relevant cloud computing technology, this section for you to introduce the different levels of cloud computing instructions. 　　Different levels of application have different levels of means, but basically cloud computing will not leave the previous few keywords, we are in this section to look at several well-known cloud computing. 1. Software as a service software service the most famous is Flickr. This photo-sharing service ...