Big Data

A task scheduling system is being developed to solve the task management, scheduling and monitoring under the large data platform. 　　Timed triggers and dependency triggers. 　　System module: JobManager: Master of the dispatch system, provide RPC service, receive and process all the operations submitted by Jobclient/web, communicate with metadata, maintain job metadata, and maintain, Trigger, dispatch and monitor the unified configuration of the task; Jobmonitor: Monitoring the running job status, monitoring task pool 、...

Preface &http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; There is a recent need to implement multiuser management in the Hadoop cluster, so a lot of information is being searched online. There is a way to feel or more feasible, link: http://cn.soulmachine.me/blog/20140206/The approximate way is: first ...

The Apache Spark is the most popular large data processing framework today. Spark's performance and speed are vastly superior to mapreduce and easier to use, and spark already has a large user and contributor community, which means spark more compliant with the next generation of large data applications for low latency, real-time processing, and iterative computing,     The tendency to replace MapReduce. But many people think that spark is only in the memory computing environment than the map ...

Eckerson Wayne, a consultant, says Hadoop provides a platform where dynamic environmental monitoring provides more convenient control for individual data analysis and Spreadmart (report marts) established by business users, while also allowing them to have local self-service analysis. Spreadmart is the abbreviation of ToolStrip Data mart, in the field of business intelligence, the different spreadsheets that multiple individuals and teams create. 　　Because the data is inconsistent, it brings a lot of trouble to the business. ...

First of all: Hadoop is disk-level computing, when computing, data on disk, need to read and write disk; http://www.aliyun.com/zixun/aggregation/13431.html ">storm is a memory-level calculation, Data imports memory directly over the network. Read/write memory is faster n order of magnitude than read-write disk. According to the Harvard CS61 Courseware, disk access latency is about 75,000 times times the latency of memory access. 　　So storm faster. ...

Http://www.aliyun.com/zixun/aggregation/14417.html ">apache Hadoop to address the challenges of large data by simplifying the implementation of data-intensive, highly parallel distributed applications. Hadoop is being used by many companies, universities and other organizations around the world, which allows the analysis task to be divided into work fragments and distributed to thousands of computers, providing rapid analysis time and the distribution of massive data storage. Hadoop for storing massive data ...

HBase and SOLR can make requests to solr through a coprocessor coprocessor, and SOLR can synchronize the data that is received: adding, deleting, and indexing operations.     Store and index on different machines, this is a large data architecture must be, but there are many students do not know this way, they are very new to this idea, however, this is definitely a good direction, so do not know how to study. One of my friends left my blog.

Big data will become the cloud of the year. This is the inevitable result: over time, the enterprise produces more and more data sets, including customer purchase preference trends, site visits and habits, customer review data, etc. so how can you put so much data into a comprehensive form? Traditional business intelligence (BI) tools ( relational databases and desktop math packages are a bit out of the way to deal with such a large amount of data in a business. Of course, the data analysis industry also has development tools and frameworks, ...

1.1: Increase the secondary data file from SQL SERVER 2005, the database does not default to generate NDF data files, generally have a main data file (MDF) is enough, but some large databases, because of information, and query frequently, so in order to improve the speed of query, You can store some of the records in a table or some of the tables in a different data file. Because the CPU and memory speed is much larger than the hard disk read and write speed, so you can put different data files on different physical hard drive, so that the execution of the query, ...

For China, big numbers are opportunities and challenges. China has the largest population in the world, but only 60% of Japan and 7% of North America, half of which is unprotected. In http://www.aliyun.com/zixun/aggregation/13568.html "> Large data technology, China and the world's advanced countries, there is a huge gap, there is also a lack of relevant laws and talents. "Chinese Academy of Engineering, director of China Internet Association Hequan 26th in an interview with the Science and technology daily Reporter, said. ...

BEIJING (cnfin.com/xinhua08.com)--at a seminar held here on 11th, gathered, an expert at home and abroad from the university and the Research and development Department of the Enterprise, discussed the development of cognitive computing in the big data age. Experts said 　　Large data brings new opportunities to the development of cognitive computing technology, and the practice of cognitive data is forcing the development of cognitive science. In the symposium, called "from large data to cognitive computing", many experts believe that the big data age makes cognitive computing face the previous ...

At present, the research and application of "big Data" is becoming a new national strategy in the field of information processing in the United States and other developed countries. Industry insiders believe that China's e-commerce development advantages of "sitting two", has for our country to reserve a new market demand, technical team and equipment, if the positive advance and large data and other emerging technology industry application and integration, will be the new order of trade in China to provide new orders. 　　Experts suggest that the country as soon as possible from the strategic level of "electricity quotient + Large data" in-depth research and development to support. Advantages of China's development level "sit two look One" "Data is 21st century ...

3721.html ">2014 year August 27, China Information Association large data Branch set up a conference in Beijing Tangla Hotel, the National Development and Reform Commission, Ministry of Industry and Information Technology, National Information Center leadership, all levels of leadership and experts, industry scholars, 　　More than 300 guests, such as partner representatives, attended the conference. The Conference elected a large data branch president, executive vice president, directors, and the Secretary-General a total of 71. Among them, the 59 outstanding contributors to the Zhang, the CEO of cloud-creating storage, were elected the first big Data branch ...

September 7, the CCTV "dialogue" section invited two Internet industry's man, China Broadband Capital Fund chairman Tian and 360 company chairman Zhou. Two big guys have a deep dialogue on the status quo and development of China's internet industry. In the process of dialogue, Zhou that the internet era of large data needs more security, large data times rely more on cloud commands, and if the server is attacked, the consequences will be disastrous. Therefore, in the Internet and the life of a closer future, security should become the first priority. The internet age and every previous time ...

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Qihoo 360CEO Zhou has previously thrown out the view of "big data," he said at the 2014 Forbes China Innovation Summit today, a number of industries will be transformed by the cloud of large data, and an exciting IoT entrepreneurial era is coming. Http://www.aliyun.com/zixun/aggregation/20826.html "> Traditional industries in the face of the Internet subversive impact, should be more close to users, in order to hatch the value of innovative business models ...

Car networking is a breakthrough in the development of the South Bank's Internet of things, with output expected to reach 5 billion yuan next year. 　　"In the car networking sub-forum, District Science and Technology Commission director Zhang in an interview, said that at present, I have 27 projects in the area of networking applications, with the national freight Supervision platform settled on the South Bank, car networking ushered in the" Big Data era ", bringing endless commercial value, the next year is expected to reach the network output of 5 billion yuan. According to the introduction, the South Bank of the car network enterprises in Chongqing Thousand Group, commissioned by the National Ministry of Transport, will be in the South Bank to build a national freight monitoring platform. "This year will achieve 1 million units ...

The large data is a new industry with national strategic meaning after cloud computing, Internet of Things and mobile network, which has become an important strategic resource of the country. 　　This August, Chongqing City issued the "Chongqing Big Data Action Plan", the first time in the country to put forward the main goal of the whole industry chain. Zhongqing Cloud Office related responsible person introduction, by 2017, Zhongqing will be in the virtual technology, cloud computing platform technology, massive data storage, data preprocessing, new data mining analysis, information security technology, large data key equipment 7 major areas to break through a number of key technologies to promote large data technology in e-government, livelihood services ...

"The Large data Center" is the Chongqing power grid existing http://www.aliyun.com/zixun/aggregation/13584.html "> massive data Resources centralized storage, unified management, for the grid application system to provide a unified, consistent data View, To ensure data uniqueness, accuracy, integrity, standardization and timeliness, to achieve mass data sharing shared. Through the analysis of massive historical data, it provides scientific decision-making basis for power grid load adjustment and electric energy forecast analysis. "Guo Net Chongqing letter Company ...

Led by President Zhu Xiaohuang, Citic Bank November 12 in Shanghai, held an easy to live innovation financial release signing ceremony. 　　At the retail strategic level, CITIC Bank is leveraging the "Big Data" of "http://www.aliyun.com/zixun/aggregation/32874.html" > Easy to reside in China to exert consumer finance. Sundershun, deputy governor of Citic Bank, said in an interview with the first financial (Weibo) reporter that China has 80 million stock of customer data, and in fact, Citic Bank's current retail customers ...