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ID. Required. ‘affiliation‘: ‘Acme Clothing‘, // Affiliation or store name. ‘revenue‘: ‘11.99‘, // Grand Total. ‘shipping‘: ‘5‘, // Shipping. ‘tax‘: ‘1.29‘ // Tax.}); 3.2: Add transaction order product ga(‘ecommerce:addItem‘, { ‘id‘: ‘1234‘, // Transaction ID. Required. ‘name‘: ‘Fluffy Pink Bunnies‘, // Product name. Required. ‘sku‘: ‘DD23444‘, // SKU/c

file systems require a database to store structured data, GFS also needs bigtable to store structured data.1) BigTable is built on GFS, Scheduler, Lock Service and MapReduce.2) Each table is a multidimensional sparse graph3) in order to manage the huge table, the table is divided according to the row, these segmented data are collectively referred to as: Tablets. Each Tablets is about 100-200 MB, and each

failures, and manages communication requests between machines. This mode allows programmers to process resources of ultra-large distributed systems without having any experience in concurrent processing or distributed systems. My own access to mapreduce is the path of Lucene-> nutch-> hadoop.Hadoop is another masterpiece of Doug cutting, father of Lucene. It is a Java Distributed File System and MAP/reduce implementation.The hadoop documentation is not detailed. Let's review the

. Creating a bunch of ad icons on the desktop is also a consistent practice for unscrupulous apps, and Google has finally made it clear that developers must not do so. The notconsistent impact of this new Google developer policy is huge, and according to analysis, 20,000 apps will have to change the way they advertise and stop harassing users, or they will be kicked out of

Whether the Hilltop algorithm runs in real timeGoogle's server architecture is the 10 thousand Pentium-level servers distributed on the network. Once we understand the Hilltop algorithm, it is hard to believe that such a Pentium server can handle this problem: imagine that we should first find the "expert file" from thousands of theme files ", then calculate the score of the link of the target webpage from these expert files, and then return the value to other ranking systems

get their guidance. They also participate in international programming competitions through the Internet, so the Internet is of great help to them, today, we know that the Internet can help us find vast amounts of information, and we can get such information from Google through the search engine. However, in addition, I think the entire computing layout in the future will go from PC-dominated to a so-called gathering age. I think the gathering age ha

Surging clouds Google has not published any security documents, and I have not thoroughly studied and tested GAE's defense against various attacks. I just want to give a brief introduction as a google user. First, the underlying layer must be built on GFS, using distributed storage to store all the data, that is, google's cloud storage. It may be the computing pl

On July 22, July 8, Beijing time, according to foreign media reports, Google released the internal use of the company on Monday.Source codeThe data description language protocol buffers. Protocol buffers is similar to XML, but it is simpler, smaller, and faster. Google open sourceCodeChris DiBona, Project Manager, wrote in a blog post: "Almost all structured information we transmit over the network or

Google officially launched its Google local service in Japan today (July 14) in the United States. I believe that everyone is familiar with local, that is, detailed maps (not satellite photos) in each region plus information about restaurants, hotels, and other facilities in the region. Google launched local in Japan so quickly, and its cooperation with NTT is

CDN stands for Content Delivery Network (CDN. The purpose is to add a new network architecture to the existing Internet to publish website content to the "edge" closest to the user's network ", this allows users to obtain the desired content from the nearest node to solve the problem of Internet congestion and improve the response speed of users accessing the website. Technically, it solves the slow response speed caused by low network bandwidth, large user traffic, and unevenly distributed outl

■ 1. PrefaceI learned about Google in the first half of 2000. Before that, I used AltaVista to search for English information, while Sina was often used to search for Chinese information. But since Google was used, it became my Favorite Search engine. I would also like to thank Cao Xi, a netizen, for recognizing Google because of his strong promotion.I remember t

returns pages from the web's collection of billion do Cuments. Match search criteria so well, "Google" has become a widely used verb. Most search engines, including Google, continually run a army of computer programs that retrieve pages from the web, Index the words in each document, and store this information in an efficient format. Each time a user asks for

This article uses a simple example to show you how to create a simple App Engine program. First, we will introduce you to Google App Engine.Introduction to Google App Engine Google App Engine provides a complete set of development components to allow users to easily build and debug network applications locally, and then allow users to deploy and run network appli

1, download the re file manager 2, open the RE manager to change read-only to read and write 3, the installation of Google installation package to move to the System/app, or peas folder directly download Google Electronics market, will automatically installed, 4, open the installation of good software 5. If you don't have root root 　Google Installer a

Google, a notorious "Do no Evil", has recently been caught in the grip of the play store for not allowing access to the Android version of the Firefox browser. A recent user response, when it tried to use the Android version of the Firefox browser to visit the Play Store mall, but found that can not do, the page unexpectedly prompts "the Web page can not be supp

As an important gateway to the Internet, browsers are more and more valued by people. And a good browser, in addition to browsing the Web page, it should also be an "all-round player." As Google's Chrome browser, its biggest charm is the ability to install a variety of extensions, so that the Chrome browser itself more rich. In Google Chrome online App Store, users can download and install applications, ext

TensorFlow TensorFlow (Tengsanfo) is Google based on the development of the second generation of artificial intelligence learning system, its name comes from its own operating principles. Tensor (tensor) means n-dimensional arrays, flow (stream) means the computation based on data flow diagram, TensorFlow flows from one end of the flow graph to the other. TensorFlow is a system that transmits complex data structures to artificial neural networks for a

Spanner's design reflects the accumulation and precipitation of Google's experience in the field of distributed storage systems over the years, using the Megastore data model, chubby data replication and consistency algorithms, and the use of bigtable technologies in the scalability of the data. The novelty is that it uses a local clock with high precision and observable error to determine the sequence of events in a distributed system. Spanner represents a new trend in the field of distributed