Distributed

Design and implementation of a large amount of small XML data file processing technology based on Hadoop University Kong Xin This paper focuses on the following: 1 a distributed mass of small XML data processing system (distributed Massive smallxml files SYSTEM,DMSX), the main idea of the system is to use a large number of small data XML files in the Hadoop system for efficient processing. 2 The system through the use of producer-elimination ...

Research on the storage strategy of small text corpus on Hadoop platform normal Zheng Lijie in order to solve the contradiction between the distributed storage and retrieval speed of the small text corpus in the Hadoop platform storage, this paper proposes a new HSCs (Hadoop smalltexts Corpus Storage) Storage policy. The strategy first uses small text merging technology to add a layer of merge_client to the HDFS architecture, merging multiple small text files into a large text file with directory structure, effectively reducing ...

Research on personalized recommendation of e-commerce based on MapReduce Beijing Jiaotong University Bruce Lee with the advent of the large data age, the user's personal information in various ways distributed in different storage devices, integration of all user information and through a certain mining technology can reach the user's potential needs. At present, the rapid development of E-commerce, mobile E-commerce will occupy a dominant position in the future, how to quickly tap the user's personal potential needs, users may be interested in products pushed to the user into a large data era, E-commerce enterprises need to solve the problem. Current electricity ...

Cloudreports is a graphic tool this simulates distributed computing environments based on the Cloud computing. It uses Cloudsim as its simulation engine and provides a easy-to-use user in ...

CHUKWA:A Large-scale monitoring system We describe the design and initial implementation of Chukwa, A data system   For monitoring and analyzing SCM distributed BAE. .

Abstract: The State Grid Company announced 27th to open to social capital the distribution of distributed power grid engineering and electric vehicle recharge facilities two market areas. The move is the natural monopoly of the first to open the market to social capital, is expected to promote distributed power and electric power grid Company announced 27th to open to social capital of distributed power grid engineering and electric vehicle recharge facilities two market areas. This is the natural monopoly for the first time to open the market to social capital, is expected to promote the development of distributed power and electric vehicles, by 2020 to pry 200 billion yuan city ...

Summary: The industry's long-awaited solar subsidy rules. The NDRC announced yesterday that it was implementing a regional benchmarking policy for photovoltaic power stations. According to the local solar energy resources and construction costs, the country will be divided into three types of resource areas, respectively, the implementation of each of the industry's long-awaited solar power subsidy details. The NDRC announced yesterday that it was implementing a regional benchmarking policy for photovoltaic power stations. According to the local solar energy resources and construction costs, the country will be divided into three types of resource areas, respectively, the implementation of each degree of 0.9 yuan, 0.95 yuan, 1 yuan electricity price standards. For distributed photovoltaic power generation ...

Cyber hacker suspected of Christmas network paralysis 18 years old a teenager from Merseyside, England, was arrested for suspected involvement in a distributed Denial-of-service attack (DDoS) with the Xbox Live Network (PSN). According to Sky News, this time a joint operation by the Organized Crime Investigation Unit (SEROCU) in the southeastern United Kingdom and the FBI, an 18-Year-old was arrested on suspicion of illegal use of computer information and death threats, and electronic devices searched from the teenager's home ...

Online social networks are starting to flourish, which not only changes how we manage our careers but also affects our social networks. As the economy continues to slump, millions of of corporate managers are at stake, hastily joining online social networks to build their social capital. So the popularity of websites such as LinkedIn began to soar: A year ago the site was unknown. Most people think that this is just a distributed platform, only to work for people in the planning of the next career direction, search for relevant professional contacts. With the ...

Zabbix is an enterprise-class open source solution based on the Web interface that provides distributed system monitoring and network monitoring capabilities. Zabbix can monitor various network parameters, ensure the safe operation of the server system, and provide a soft notification mechanism for http://www.aliyun.com/zixun/aggregation/13879.html "> system Administrator to quickly locate/ Solve all kinds of problems. Zabbix is composed of 2 parts, Zabbix server and optional group ...

Bazaar VCs is a simple decentralized http://www.aliyun.com/zixun/aggregation/9591.html "> Version control System. Its features are easy to use, stable and reliable and flexible to use. It enables users to branch remote repositories to local environments without special permission to submit to local branches. About Bazaar Bazaar is a version control system that can help you keep track of your project's history and work with others easier. Whether you are a developer ...

Tenable Nessus is a world-leading http://www.aliyun.com/zixun/aggregation/27400.html "> System Vulnerability Scanner and analysis tool. Its main functions include: quick discovery of vulnerabilities, configuration audits, asset analysis, sensitive data discovery, and vulnerability analysis of security conditions. Nessus scanners can be distributed across the enterprise, within the DMZ, and across physically independent networks. Tenable Nessus 5.0 ...

Globus Toolkit is a toolkit derived from the Globus project, providing stability on http://www.aliyun.com/zixun/aggregation/13840.html "> supercomputer, Distributed computing, clustering, and other high-performance system functions for secure and peer-to-peer networks. It differs from other network toolkits, but is tuned to the needs of high-end machines. Globus is an open architecture, open standard project for building computational grids. is an open source ...

10,000 hectares of land for idle real estate in the country. 25 cases reported December 23 morning news According to the investigation, currently idle real estate land still has about 10,000 hectares, the Ministry of Land today held a press conference, announced the supervision of 25 real estate development idle land disposal situation. According to the Ministry of Land and Resources survey, the country currently idle real estate land is still about 10,000 hectares, idle land due to planning adjustment mainly the government part of the reasons and judicial seizure of about 55%. The Ministry of Land and Resources of the listing of 25 cases of real estate development idle land, distributed in Beijing, Shanghai ...

Cvideo Cloud Video Monitoring system Cvideo Cloud Video Surveillance system is the Nanjing Cloud Chong Storage company self-developed and designed large-scale high-definition video surveillance solutions. Relying on the company's Cstor cloud storage platform, as well as cproc cloud processing platform, so that the Cvideo framework of integrated scheduling and cloud transcoding can be perfect to meet the large-scale video surveillance, mass data storage, as well as long-distance monitoring requirements. At the same time, Cvideo developed an international leading intelligent image recognition algorithm, using large-scale distributed cloud processing, so that ...

A collaborative mechanism for computing and data in large data technology Wang Peng Huang Liu Fengan Handsome Data system is also known as a data-oriented high-performance computing system, similar to the traditional high-performance computing systems, and its computing and data storage is usually based on the cluster implementation of distributed systems. Based on the coordination mechanism of computation and data, this paper compares the high performance computing and data-oriented high performance computation, and points out that the cooperative mechanism of computing and data determines the basic structure and performance of large data system. The integration of Distributed file system and computation through assistance mechanism is the realization of automatic parallelization of large data system.

Design and realization of hospital data center system based on Hadoop Zhejiang University Zhang Honglei This thesis first completes the development of the Hospital data Center system, then takes the electronic medical record system as an example, realizes the high-speed reading and storage of the structured data in the data center; Taking PACs as an example, It realizes the high speed storage and reading of the unstructured data in the data center, and implements the recommendation engine algorithm on the machine learning platform. The data center system of the hospital based on the Hadoop distributed framework has the advantages of low implementation cost, safe and reliable data storage, easy expansion of the system and speed of data reading and writing.

This article focuses on the entire mapreduce process of Hadoop, do not tell stories, not nonsense, focus on describing each link. Through the article to Google over a lot of hard, I took some notes, add some of their own opinion, not necessarily all right, we have to discriminate. I hope this article has some help for mapreduce students who want to learn about Hadoop. A． Using the Map/reduce algorithm's Goal 1 to be able to compute distributed processing a) when needed, data is always available B) applications don't care how much ...

Research on the mechanism of middle-stage recovery of cloud storage log structure file system Hou Hao Zhao is far from the cloud storage file system, complex retrieval and recycling processes cause the system to process user data degradation, based on the log structure of Distributed file systems (hdfs-based log-structured file System,hlfs), this paper proposes a method to improve the effective utilization of cloud storage space by means of efficient recycle management of system resources, and find out the usage of hlfs middle resources through bitmap marking, and realize the hlfs ...

High-efficient index method of massive data in cloud computing Huang Peng Yu Pengxiaoning the mass and distribution characteristics of data in cloud computing environment, and the existing distributed B-Tree indexing method has a low access rate problem, this paper proposes an efficient index method of massive data in cloud computing environment, which is based on the distributed B-Tree, Log is used to record the splitting history of nodes, and efficient concurrent access to distributed B-trees based on node splitting history.  Experimental results show that it can effectively improve the data access and indexing efficiency in cloud computing environment. Efficient indexing method of massive data in cloud computing