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"Guide" Xu Hanbin has been in Alibaba and Tencent engaged in more than 4 years of technical research and development work, responsible for the daily request over billion web system upgrades and refactoring, at present in Xiaoman technology entrepreneurship, engaged in SaaS service technology construction. The electric dealer's second kill and buys, to us, is not a strange thing. However, from a technical standpoint, this is a great test for the web system. When a web system receives tens or even more requests in a second, system optimization and stability are critical. This time we will focus on the second kill and snapping of the technology implementation and ...

Shenzhen Residential Leasing Management Center employees were "sun pay" net Post said the employee's highest annual salary of 680,000, the rental center responded that the payroll has been rejected South Daily News (reporter/says Yang Lei Guo Biao Cunghun Ning) "Public welfare is the lifeblood of the protection of housing construction, the original is such a large personal welfare units in Shenzhen." The wages of ordinary employees are so high that the money comes from. Yesterday 11:21 A.M., the signature "people do not live" through the Tianya Forum, to map the form of exposure to the Shenzhen City Residential Leasing Management Service Center (hereinafter referred to as Residential Rent control center) Wage table, and said its "history of the most cattle civil servants ..."

After more than eight years of practice, from Taobao's collection business to today to support all of Alipay's core business, and in the annual "Double Eleven Singles Day" continue to create a world record for the transaction database peak processing capacity.

5K Project is the milestone of the flying platform, the system in scale, performance and fault tolerance have been a leap-type development to reach the world's leading level. 　　Fuxi as a flying platform distributed scheduling system, can support a single cluster 5000 nodes, running 10000 jobs, 30 minutes to complete the 100TB data Terasort, performance is at that time Yahoo! in the Sortbenchmark of the world record twice times. Fuxi introduced "Flying" is Alibaba's cloud computing platform, which distributed scheduling system is named "Fuxi" (Code name f ...).

Sharing photos is one of the most popular features of Http://www.aliyun.com/zixun/aggregation/1560.html's >facebook. So far, users have uploaded more than 1.5 billion photos, making Facebook the largest photo-sharing site. For each uploaded photo, Facebook generates and stores four images of different sizes, converting to a total of 6 billion photos with a total capacity of over 1.5PB. Currently 2.2 million new photos per week ...

With the explosion of information, micro-blogging website Twitter was born. It is no exaggeration to describe Twitter's growth with the word "born". Twitter has grown from 0 to 66,000 since May 2006, when the number of Twitter users rose to 1.5 in December 2007. Another year, December 2008, Twitter's number of users reached 5 million. [1] The success of Twitter is a prerequisite for the ability to provide services to tens of millions of users at the same time and to deliver services faster. [2,3,4 ...

After Facebook abandoned Cassandra, HBase 0.89 was given a lot of stability optimizations to make it truly an industrial-grade, structured data storage retrieval system. Facebook's Puma, Titan, ODS time Series monitoring system uses hbase as a back-end data storage System. 　　HBase is also used in some projects of domestic companies. HBase subordinate to the Hadoop ecosystem, from the beginning of the design of the system is very focused on the expansion of the dynamic expansion of the cluster, load are ...

1, the Map-reduce logic process assumes that we need to deal with a batch of weather data, the format is as follows: According to the ASCII storage, each line of a record each line of characters from 0 start count, 15th to 18th word Fu Weihan 25th to 29th characters for the temperature, where 25th bit is a symbol + + 0067011990999991950051507+0000+ 0043011990999991950051512+0022+ 00 ...

Cloud computing is designed to provide on-demand resources or services over the Internet, usually depending on the size and reliability of the data center. MapReduce is a programming model designed to handle large amounts of data in parallel, dividing work into a collection of independent tasks. 　　It is a parallel programming, supported by a functional, on-demand cloud (such as Google's BigTable, Hadoop, and sector). In this article, you will use compliance randomized hydrodynam ...

"Editor's note" Shopify is a provider of online shop solutions company, the number of shops currently serving more than 100,000 (Tesla is also its users). The main frame of the website is Ruby on rails,1700 kernel and 6TB RAM, which can respond to 8,000 user requests per second. In order to expand and manage the business more easily, Shopify began to use Docker and CoreOS technology, Shopify software engineer Graeme Johnson will write a series of articles to share their experience, this article is the department ...