Programming Course Resource System

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In January 2014, Aliyun opened up its ODPS service to open beta. In April 2014, all contestants of the Alibaba big data contest will commission and test the algorithm on the ODPS platform. In the same month, ODPS will also open more advanced functions into the open beta. InfoQ Chinese Station recently conducted an interview with Xu Changliang, the technical leader of the ODPS platform, and exchanged such topics as the vision, technology implementation and implementation difficulties of ODPS. InfoQ: Let's talk about the current situation of ODPS. What can this product do? Xu Changliang: ODPS is officially in 2011 ...

The railway informatization has become an important support for railway daily work after many years ' development, which plays an important role in transportation organization, passenger and freight marketing, management and safety monitoring. In order to meet business needs, in the Transport Station section, the Railway Bureau and the Ministry of Railways have established all kinds of information system rooms of various grades, and acquired the host, storage equipment and corresponding platform software according to the demand of the business maximum data quantity and calculation quantity, in order to ensure the safe and reliable operation of the information system, most of the main systems adopt main standby machine, single

The PC has an operating system. Even mobile phones have an operating system. Why doesn't a data center have an operating system? Of course, it is much more difficult to make an operating system that can handle all the resources of a data center than to create an operating system that allows a single device to run applications. The data center has a team of IT professionals to ensure that all servers are running and that the application has enough storage and so on. However, the workload is so great that it is necessary to introduce a more expensive operating system that can handle the entire datacenter transaction. This is Dr. Matei Zah, Ph. D., University of California, Berkeley.

MapReduce: Simple data processing on large cluster

The advent of cloud computing has changed the way information and services are delivered, and it subverts the delivery model of traditional IT systems. Cloud computing is not so much a technological innovation as a shift in thinking patterns. Cloud computing is a data and processing capacity-centric intensive computing model, which integrates data storage, data management, concurrency control, distributed computing, System management, load balancing and many other traditional it technology. It is not hard to see that cloud computing is not a "new invention" of technology but a "smooth evolution" of traditional technology. Speaking of cloud computing, there are seven traditional it technology indispensable, it can be said that ...

As a new computing model, cloud computing is still in its early stage of development. Many different sizes and types of providers provide their own cloud-based application services. This paper introduces three typical cloud computing implementations, such as Amazon, Google and IBM, to analyze the specific technology behind "cloud computing", to analyze the current cloud computing platform construction method and the application construction way. Chen Zheng People's Republic of Tsinghua University 1:google cloud computing platform and application Google's cloud computing technology is actually for go ...

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 ...

Under the background of the information age, after years of development, railway informatization has become an important support for railway daily work. In the transportation organization, the passenger and freight marketing, the management and the safety monitoring and so on work, each kind of information system plays the important role to become more and more manifest. Therefore, to meet business needs, in the Transport Depot section, the Railway Bureau, the Ministry of Railways has established a variety of levels of information systems room, and according to the business maximum data and calculation requirements of the acquisition of host, storage equipment and the corresponding platform software, in order to ensure the safe and reliable operation of information systems, most of the main system using the main Single (or multiple) storage array ...

As a software engineer, what you want to get from your job is a steady salary, opportunities to get involved in the project, a good springboard for the job, or just being a good friend with other programmers. Here, "efficient", I mean the ability to meet the requirements of the project on time. After a lot of software writing experience, I believe the following practices will help you to learn "efficient" while increasing professional reputation, career life and personal satisfaction 1. Understand your needs The first step to becoming an effective programmer is , To ensure a reasonable allocation of time. Nothing is more than spending time on work that has no future at all ...