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 ...
As a new computing model, cloud computing is still in its early stage of development. Many different sizes and types of providers provide their own cloud-based application services. This paper introduces three typical cloud computing implementations, such as Amazon, Google and IBM, to analyze the specific technology behind "cloud computing", to analyze the current cloud computing platform construction method and the application construction way. Chen Zheng People's Republic of Tsinghua University 1:google cloud computing platform and application Google's cloud computing technology is actually for go ...
Content Summary: The data disaster tolerance problem is the government, the enterprise and so on in the informationization construction process to be confronted with the important theory and the practical significance research topic. In order to realize the disaster tolerance, it is necessary to design and research the disaster-tolerant related technology, the requirement analysis of business system, the overall scheme design and system realization of disaster tolerance. Based on the current situation of Xinjiang National Tax Service and the target of future disaster tolerance construction, this paper expounds the concept and technical essentials of disaster tolerance, focuses on the analysis of the business data processing of Xinjiang national tax, puts forward the concrete disaster-tolerant solution, and gives the test example. Key words: ...
MongoDB company formerly known as 10gen, founded in 2007, in 2013 received a sum of 231 million U.S. dollars in financing, the company's market value has been increased to 1 billion U.S. dollar level, this height is well-known open source company Red Hat (founded in 1993) 20 's struggle results. High-performance, easy to expand has been the foothold of the MongoDB, while the specification of documents and interfaces to make it more popular with users, this point from the analysis of the results of Db-engines's score is not difficult to see-just 1 years, MongoDB finished the 7th ...
21st Century Economics report Huang for a long time, the "war" between SAP and Oracle (NASDAQ:ORACLE) is almost synonymous with Germany's classic case of precision innovation against open innovation in the United States. Both are supporters of the world's top 500 companies. The former is the world's largest business applications, enterprise resource Planning (ERP) solutions and independent software suppliers, Europe's largest software company, the latter is the world's largest enterprise software companies. As the two giants of business application software, the infighting between them never stops. 20th century eighty or ninety years ...
August 13 News, Beijing Aerospace University president Huaijin Peng in the afternoon, "Hall of Fame-Internet trend Forum," said that cloud computing under the big data will produce new value. One is commercial social value, the other is academic value. Large data not only change our communication model, but also affect our economic and social development model, more importantly, it may be an important means of future academic and scientific discoveries. But he also said the application of large data would inevitably involve privacy. Huai Jin Peng proposed that the site using large data can be a lot of personal information mining out ...
In the Chinese Internet, the most undervalued figures in the past are now examples for all entrepreneurs to learn. From the traditional business across the Internet to the Internet, what is his success? He had single-handedly robbed more than 100,000 Internet domain names, the total valuation of 100 million US dollars he did not graduate from high school, English is very bad, but Website sold to Google, it has also become the guest of many VC He is a first-rate angel investors, the site voted to have several million US dollars have been the popular public ...
Absrtact: When the mobile phone map is used by Gould, please come to the company who worked in Nokia and Motorola to take charge of the mobile internet business. Baidu first noticed that the opportunity for a map began when Google withdrew from China. With Google's market share of the rise, the flow is also increasing the mobile phone map, please come to the Nokia, Motorola has worked in the army to take charge of the mobile internet business. Baidu first noticed that the opportunity for a map began when Google withdrew from China. With Google's market share rising, the flow is also gradually rising. At that time, Google, hundred ...
When he was working on his mobile phone map, he was responsible for the company's mobile internet business, which had worked in Nokia and Motorola. Baidu first noticed that the opportunity for a map began when Google withdrew from China. With Google's market share rising, the flow is also gradually rising. At that time, Google, Baidu did not do their own maps, Baidu will map business outsourcing to a professional map of the service, Google outsourced to the gold, the daily only set up one or two people to maintain. When Google withdrew from China, Baidu found only as a PC-side search accessibility map, traffic ...
The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall a technical article 1 link links is the connection between Internet pages, no link between all pages and the site will be isolated. What is a chain connection? In SEO this area the anchor link can be understood as text links. Search engines evaluate the importance and authority of a site by linking dependency calculations. Early in the years ago, Baidu and Google's founders were given a detailed description of the importance of linking. The fundamental principle of its hyper-chain analysis is: In all the results of a search ...
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