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Cloud storage is a concept that extends and develops in the concept of cloud computing (Cloud Computing). Its goal is to combine application software with storage devices to transform storage devices into storage services through application software. In short, cloud storage is not storage, it's a service. This service can provide virtual storage on demand on the network, also known as data storage as a service (Storage, DaaS). The customer pays for the storage capacity that is actually required to purchase. Any reference to the amount of fixed capacity added ...

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 ...

Editor's note: Data Center 2013: Hardware refactoring and Software definition report has a big impact. We have been paying close attention to the launch of the Data Center 2014 technical Report. In a communication with the author of the report, Zhang Guangbin, a senior expert in the data center, who is currently in business, he says it will take some time to launch. Fortunately, today's big number nets, Zhangguangbin just issued a good fifth chapter, mainly introduces Facebook's data center practice, the establishment of Open Computing Project (OCP) and its main work results. Special share. The following is the text: confidentiality is the data ...

"Editor's note" WiX has been operating the site for a long time, and after the launch of the WYSIWYG web platform based on HTML5, users have established more than 54 million sites in the company, and most of these sites have less than 100 solar PV. Since the PV of each page is low, the traditional caching strategy does not apply. Even so, however, the company has done so with only 4 Web servers. Recently, WiX chief back-end engineer Aviran Mordo in "...

As you learn about cloud storage archiving, you may experience cloud storage archiving issues, and here's how to solve the problem of cloud storage archiving, and share them here. Every few years there is a technology that is so hyped that no one knows what it really means. In the storage world, storage virtualization and Information Lifecycle Management (Information Lifecycle Management-ilm) are two living examples of suppliers that have been very concerned about reducing the cost and complexity of storage infrastructure, but never really. Place ...

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 ...

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the. 　　Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

The Cloud Security Alliance (CSA) presents some key IT operations areas that need to be focused on the organization's deployment of cloud computing resources: Governance and enterprise risk assessment, legal and contractual issues, electronic discovery procedures, compliance and auditing, information lifecycle management, portability and interoperability, business continuity and disaster recovery, data center operations, event response, notification and remediation, application security, encryption and key management, identity and access management, memory operations, virtual operations. In traditional data centers, build stable boundaries around the infrastructure and data that need to be protected, and place the tube in place ...

By the end of 2010, a variety of news events flooded our eyeballs: the guns of the Korean confrontation seemed to reverberate in our ears; the dead of the Shanghai Jiaozhou apartment fire are still remembered by us; the ipad and IPhone4 's sale sparked an unprecedented snapping spree; Internet Special Contribution Award ", Feng also went to the United States ... 　　In the context of this series of Internet hot news events, we will also face the inflationary pressure of rising prices, and a so-called "thousand years extremely cold" winter ... A year's time in our social life only ...

R is a GNU open Source Tool, with S-language pedigree, skilled in statistical computing and statistical charting. An open source project launched by Revolution Analytics Rhadoop the R language with Hadoop, which is a good place to play R language expertise. The vast number of R language enthusiasts with powerful tools Rhadoop, can be in the field of large data, which is undoubtedly a good news for R language programmers. The author gave a detailed explanation of R language and Hadoop from a programmer's point of view. The following is the original: Preface wrote several ...