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Add another port instance to the web server [apache + php tutorial] / * Find your apache installation directory, find the httpd.conf file, search # Listen this sentence, add the following listen 800 listen 801 listen 802 Here is the test, You need to increase the different listening port, the apache web port opened Well, I ...

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 ...

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 ...

Original: http://hadoop.apache.org/core/docs/current/hdfs_design.html Introduction Hadoop Distributed File System (HDFS) is designed to be suitable for running in general hardware (commodity hardware) on the Distributed File system. It has a lot in common with existing Distributed file systems. At the same time, it is obvious that it differs from other distributed file systems. HDFs is a highly fault tolerant system suitable for deployment in cheap ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall first to face the following questions: 1, the new domain name is a new application, then the Alexa rankings and traffic before the 2, we do not know the new domain name, the source of popularity from scratch to cultivate (ideal state) 3, search because of the engine to start to collect your new domain name, Start crawling your station again. 　　Slow wait time! 4, many sites in the site is an absolute address to all change to your new address, a lot of work. including pictures, accessories and other addresses ...

What we want to does in this short tutorial, I'll describe the required tournaments for setting up a single-node Hadoop using the Hadoop distributed File System (HDFS) on Ubuntu Linux. Are lo ...

"2" three sections of the site's architectural design, the traditional approach is syllogism. The so-called "traditional" is not synonymous with "outdated". Architectural design of large web sites, emphasizing practicality. Trendy design, although attractive, but the technology may be immature, high risk. So, a lot of big websites, walk is the way of the Conservative tradition. When Twitter was online in May 2006, they used ruby-on-rails tools to simplify the development of the site, and Ruby-on-rails's design thought was three paragraphs. 1. The preceding paragraph, namely ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host Technology Hall recently, the author of about 50 just engaged in or have been engaged in 1-2 years of Seoer did a small investigation, Including a lot of interviewers, really in the work can be analyzed to the log seoer proportion is very very little, asked to visit the log in SEO played a role, many seoer are shaking their heads, or just ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall Summary: Dynamic Web sites enrich the function of the site, but for the search engine, the situation is different, dynamic page is the user "input" or "select" when the dynamic generation, but search engine "search robot" can not "input" and "choice."  In addition, the search engine avoids the "Search Robot Trap (spider traps)" script error. First, the emergence of Dynamic Web site and the advantages of the earliest Internet presence, the site content is to h ...