Data Serialization In Big Data

Hadoop serialization and Writable Interface (i) introduced the Hadoop serialization, the Hadoop writable interface and how to customize your own writable class, and in this article we continue to introduce the Hadoop writable class, 　　This time we are concerned about the length of bytes occupied after the writable instance was serialized, and the composition of the sequence of bytes after the writable instance was serialized. Why to consider the byte length of the writable class large data program ...

The first China cloud Computing conference was opened in June 2013 5-7th at the Beijing National Convention Center. The Conference, with an international perspective, insights into global cloud computing trends, and from the application, explore cloud computing and large data, cloud computing and mobile Internet, cloud security and cloud computing industry applications, such as the focus of the topic. In particular, the Conference has set up a cloud computing services display area, exchange the latest research results of international cloud computing, showcase domestic cloud computing pilot City development achievements, share cloud computing development experience, promote global cloud computing innovation cooperation. Wave group system software director, Cloud Computing Products Department General Manager ...

The first China cloud Computing conference was opened in June 2013 5-7th at the Beijing National Convention Center. The Conference, with an international perspective, insights into global cloud computing trends, and from the application, explore cloud computing and large data, cloud computing and mobile Internet, cloud security and cloud computing industry applications, such as the focus of the topic. In particular, the Conference has set up a cloud computing services display area, exchange the latest research results of international cloud computing, showcase domestic cloud computing pilot City development achievements, share cloud computing development experience, promote global cloud computing innovation cooperation. Wave group system software director, Cloud Computing Products Department General Manager ...

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 ...

"Csdn Live Report" December 2014 12-14th, sponsored by the China Computer Society (CCF), CCF large data expert committee contractor, the Chinese Academy of Sciences and CSDN jointly co-organized to promote large data research, application and industrial development as the main theme of the 2014 China Data Technology Conference (big  Data Marvell Conference 2014,BDTC 2014) and the second session of the CCF Grand Symposium was opened at Crowne Plaza Hotel, New Yunnan, Beijing. China Mobile Suzhou Research and development ...

In recent years, with the rapid development and popularization of computer and information technology, the scale of industry application system expands rapidly, and the data produced by industry application is exploding. With hundreds of TB or even dozens of to hundreds of petabytes of industry/enterprise data that is far beyond the existing traditional computing and information systems processing capabilities, the search for effective data-processing technologies, methods and means has become an urgent demand in the real world. Baidu's current total data volume has more than 1000PB, the daily need to deal with the Web page data to achieve 10PB~100PB, Taobao cumulative ...

November 27, the tide in Beijing held a conference, released a new structure based on a large data processing platform-wave of clouds of large digital machine. 　　The product is mainly for the storage of large data, processing business, is a combination of soft and hard solutions-oriented products. At the launch of the Development and Reform Commission, the Ministry of Industry and Information Technology, the Ministry of Scientific and Technological government officials to the sea of clouds large data machine issued a high degree of concern. Large data is a matter related to China's economic and social development of the overall strategic industry, large data technology for social and economic activities to provide a basis for decision-making, improve the operational efficiency of all areas, promote the whole social economy ...

2014 Zhongguancun Large Data day on December 11, 2014 in Zhongguancun, the General Assembly to "aggregate data assets, promote industrial innovation" as the theme, to explore data asset management and transformation, large data depth technology and industry data application innovation and ecological system construction and so on key issues. The Conference also carries on the question of the demand and practice of the departments in charge of the government, the finance, the operators and so on to realize the path of transformation and industry innovation through the management and operation of data assets. In the afternoon financial @big Data Forum, Asia ...

Big data can change the way we look at the world, and in Washington this week many experts have gathered to discuss some big data. Below are some examples of references they have mentioned. The United Nations has established a global pulse, with the primary aim of making better use of large data to enable industries to respond faster and better to the most comprehensive and broadest possible humanitarian crisis. The picture has the United Nations as a term and a concept, and if you're not dealing with big data every day, then big data is relatively unfamiliar to you. Even in industry experts, the definition of large data ...

First, the cache or persistence RDD and similar, DStreams also allows developers to persist streaming data to memory. Use the persist () method on DStream to automatically persist RDDs in DStream into memory. This is useful if the data in DStream needs to be calculated more than once. Like reduceByWindow and reduceByKeyAndWindow this window operation, updateStateByKey this state-based operation, persistent ...