Big Data

Big data is now a very hot topic, SQL on Hadoop is the current large data technology development in an important direction, how to quickly understand the mastery of this technology, CSDN specially invited Liang to do this lecture for us. Using Sql-on-hadoop to build Internet Data Warehouse and business intelligence system, through analyzing the current situation of business demand and sql-on-hadoop, this paper expounds the technical points of SQL on Hadoop in detail, shares the experience of the first line, and helps the technicians to master the relevant technology quickly ...

The concept of Hadoop has become less unfamiliar with the advent of the big data age, and in practical applications, how to choose the right hardware for the Hadoop cluster is a key issue for many people to start using Hadoop. In the past, large data processing was mainly based on a standardized blade server and storage Area Network (SAN) to meet grid and processing-intensive workloads. However, as the amount of data and the number of users increased dramatically, infrastructure requirements have changed, hardware manufacturers must establish innovative systems to meet large data pairs including storage blades, SA ...

Opendaylight Open Source http://www.aliyun.com/zixun/aggregation/13868.html "> Software definition Network [note] (sdn[note]) project was founded under the sponsorship of the Linux Foundation, The project launched its first open source version of ――hydrogen in less than a year, and after one months of its launch, Opendaylight has been rolling out a later version of ――heli ...

The big data industry is growing better, enterprises do not hesitate to hire data analysts, "learning Hadoop, looking for a good job is not a dream," the slogan inspired countless students to devote to large data cause, but the employment is not so simple, "work experience" undoubtedly to the students seeking high-paying jobs broke the basin of cold water, how to solve the experience problem? How to make yourself look more professional? How do you get a deeper insight into your industry? Technical recruiters offer insights and suggestions for job seekers with Hadoop skills. InformationWeek writer Kevin Cas ...

In life, perhaps all of them have indirectly used his work, and he is the initiator of Lucene, Nutch, Hadoop and other projects. It was he who made the esoteric search technology a product that contributed to the general public, or he created Hadoop, which is now at the zenith of cloud computing and large data. 　　He is a kind of thief of fire, he is Doug Cutting. From the intern 1985, cutting graduated from Stanford University in the United States. He was not at the outset determined to join the IT industry, in the college era ...

NoSQL has been in vogue for a long time, so what exactly is the scene you need to use these "emerging things", such as http://www.aliyun.com/zixun/aggregation/13461.html ">mongodb?" Here are some summaries: you expect a higher write load by default, compare transaction security, MongoDB more attention to high insertion speed. If you need to load a lot of low-value business data, then MONGO ...

Cloudera, a Hadoop publisher, did not cause much concern when it bought a london-based start-up company last year Myrrix, and Cloudera rarely promoted the company's technology in machine learning. 　　But Myrrix's technology and his founder Sean Owen's value and influence in machine learning are not to be underestimated. 　　Owen is currently developing an open source machine learning Project--oryx (Oryx, Cloudera also sells a product called Impala, Impala). Oryx's goal is to help ...

Hadoop streaming is a multi-language programming tool provided by Hadoop that allows users to write mapper and reducer processing text data using their own programming languages such as Python, PHP, or C #. Hadoop streaming has some configuration parameters that can be used to support the processing of multiple-field text data and participate in the introduction and programming of Hadoop streaming, which can be referenced in my article: "Hadoop streaming programming instance". However, with the H ...

The Apache Spark is a memory data processing framework that has now been upgraded to a Apche top-level project, which helps to improve spark stability and replace mapreduce status in the next generation of large data applications. Spark has recently been very strong, replacing the mapreduce trend. 　　This Tuesday, the Apache Software Foundation announced Spark upgraded to a top-level project. Because of its performance and speed due to mapreduce and easier to use, spark currently has a large user and ...

Open source data is divided into two factions, NoSQL enthusiasts like to publish a lengthy criticism of relational database limitations, MySQL enthusiasts stubbornly defend the health relational database-insist that the data neatly stored in the table. 　　You'd think the two sides would never get along, but in fact, tens of thousands of companies have been trying to combine relational and relational databases, and have tried it many years ago. But the development of new technologies is often antithetical to the technology of the past. When NoSQL developed, the name of the light sounded like ...

Blog Description: 1, research version hbase 0.94.12;2, posted source code may be cut, only to retain the key code. 　　Discusses the HBase write data process from the client and server two aspects. One, client-side 1, write data API write data is mainly htable and batch write two API, the source code is as follows://write the API public void to put ("final") throws IO ...

In the previous week, Qualcomm announced that it would expand the 骁丽 600 series processor, adding Gaotong 610 and 615 chipsets for high-end mobile computing terminals. 骁丽 615 is the mobile industry's first integrated LTE and 64-bit features of the commercial eight nuclear solution, claiming to be the fastest mobile chip on the market, its powerful performance is staggering ... Besides, what are some of the hot news on mobile channels? 　　Let's go through the mobile weekly to review it! 1. Mobile developers must be aware of the 10 of the great Cross-platform tools across platform development can be boundless ...

First, the preface somehow recently miss the campus life, miss the canteen fried rice. At that time will go to a variety of security BBS brush posts, like to see others write some of the security skills or experience of the summary; At that time BBS on a lot of article title are: Successful infiltration of XXX, successfully took xxx. Here is an invasion of a university in the Philippines article leads to the theme of the article, we first briefly look at the process. The university website uses the open source Web program called Joomla, (1) The youth uses a Joomla already public loophole to enter the Web backstage (2) youth makes ...

CSDN "Open source technology assembly 2014" (OSTC 2014) will be held at the Beijing Pavilion Garden Hotel on March 30, 2014. 　　We will publish a series of interviews with the lecturer and discuss what they will share in the event. 　　In this issue, we are interviewing Docker, the initiator of the Chinese community in Ma Quan. About Docker:docker is DotCloud open source, can be any application packaging in the Linux container running tools, 2 ...

This article is the 1th of 4 posts in the "Becoming a PHP Professional" series. When browsing various PHP-related blogs, such as Quora, Google Groups, newsletters, and magazines, I often notice the level of skill differentiation. The question is similar to "How do I connect to the MySQL database?" Or how do I extend my messaging system to send more than 10,000 messages per hour without introducing new servers? "I divide PHP capabilities into 4 levels, which may apply ...

2013, in all respects, is a Linux year. Jim Zemlin, executive director of the Linux Foundation, announced that Linux has spread to every corner of the computing. 　　Zemlin says Linux is almost ubiquitous from smartphones, tablets, consumer electronics and cars to open clouds and high-performance computers, as well as gaming platforms. How does Linux spread to every corner of the technology world? After all, Linux does not really realize its original commitment to become a replacement for http://...

When a big client wants to continue to invest more in your company, that's a good sign, and that's what the database start-up NuoDB is going through today, announcing the 14.2 million-dollar financing. Dassault Systèmes, Europe's second-largest software company (after SAP), has a strong interest in NuoDB and has been an investor. Dassault is a supplier of development tools for the 3D printing industry. Rather than letting customers run their software in their own data center, Dassault would prefer to ...

Figure http://www.aliyun.com/zixun/aggregation/14345.html "> Data processing in the past has been the patent of data scientists, as the application of data is more and more extensive, large data analysis has become an essential part of the field of data analysis, There is a growing need for easy access to simple graph data analysis tools. Graphlab is a very popular open source project, Graphlab developers are constantly pursuing the innovation and development of graph computing, so that it can cater to a large amount of ...

Oversharekit is an open source ioshttp://www.aliyun.com/zixun/aggregation/10211.html "> Social sharing Tool Library, based on the MIT protocol release, and the code is already hosted on GitHub." 　　By Oversharekit, developers will no longer have to worry about writing social-sharing controls for applications, directly referencing them through methods. Oversharekit Advantages: Sharing interface Cloth ...

In today's era, data is no longer expensive, but getting value from massive data becomes expensive, and getting value in time is more expensive, which is why real-time computing is becoming more and more popular. In percentile companies, for example, nearly million HTTP requests are sent to the percentile server at peak intervals, which include user behavior and personalized referral requests. How do you quickly tap the user's preferences and make good recommendations from these data? This is the top priority for the percentage point recommendation engine. This paper will introduce the experience of the company in real-time computing from the system architecture and algorithm.