Ruby Error Message

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Structural design analysis of anatomical twitter:twitter system

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 ...

The architecture design of depth analysis Cloudfoundry

VMware suddenly released its first open source Paas--cloudfoundry this April. In the months since its release, the author has been concerned about its evolution and benefited from its architectural design, and felt the need to write to share it with you. This article will be divided into two parts: the first part mainly introduces the architecture design of Cloudfoundry, from the module that it contains, to the information flow of each part, how the modules coordinate and cooperate; The second part will be based on the first part, how to use Clou in your data center ...

Lightweight jquery Pull Sort Plugin

The intermediary transaction SEO diagnose Taobao guest Cloud host Technology Hall If we compare different program developers to the general words of the princes of the kingdoms, then the code Editor can definitely call the weapon in our hands, different types of developers use the "weapon" is also very different. Like weapons, there is no absolute strong, there is no absolute good, each of the weapons have different advantages and disadvantages, although the saying goes good, an inch long, an inch strong, but if you have nothing to do it all carry "Guan Master" ...

Suppose the Product Manager understands the technology

In the last seven years, I have been doing Internet products, including the first five years in the start-up companies and listed companies, to do other people's products; nearly two years in the business, to do their own products. My experience is: Product managers need to understand technology, entrepreneurs in particular need.   But the premise is that you always feel a share of the desire to do something, if you plan to mix security days, especially in large companies, you do not need to understand, but to be careful not to "know too much", silly person life peace. To do the product these years, and development engineers to deal with most, ...

Millions technical preparation for visiting the website (i)

The intermediary transaction SEO diagnosis Taobao guest Cloud host Technology Hall opened its own domain name blog, the first one to get a heavy bit of the 4 U.S. dollars to the domain name. As a technical practitioner for ten years, stroll around for ten years to find some knowledge East a hammer West a club to look around the whole time to tidy up a clue, that I on the system point of the beginning of the step-by-step, a small web site from the day thousands of visit to the day to visit 1 million or 2 million of small sites, how to let it smoothly through this stage, not in The technology appears congenitally deficient, writes to some technical personnel, also writes does not understand ...

Product manager must understand the technology business?

Introduction: Sometimes we need more than just a product manager who knows technology well, and what we need is a product manager who can trust his partners to do well and encourage them to work better together. So in the end product managers need to understand the technology, let's take a look at know the answer of this question. In the last seven years, I have been doing Internet products, of which the first five years of time in the start-up companies and listed companies, to do other people's products; the last two years in business, and strive to be their own Production ...

19 free PHP IDE attacks

If you are a PHP programmer, then you may be very concerned about whether there is a free PHP IDE right? Xiaobian in this article for everyone finishing some free, and easy to use PHP IDE, please laugh satisfied! Notepad ++ Notepad ++ is a Windows Environment free and open source code editor, supported languages: C, C ++, Java, C #, XML, HTML, PHP, Javascript, etc! Notepad ++ not only syntax highlighting, but also ...

Hadoop Serialization System

This article is my second time reading Hadoop 0.20.2 notes, encountered many problems in the reading process, and ultimately through a variety of ways to solve most of the.   Hadoop the whole system is well designed, the source code is worth learning distributed students read, will be all notes one by one post, hope to facilitate reading Hadoop source code, less detours. 1 serialization core Technology The objectwritable in 0.20.2 version Hadoop supports the following types of data format serialization: Data type examples say ...

Web Development Toolbox: 120 Web Development tools (top)

Intermediary transaction SEO diagnosis Taobao guest Cloud host Technology Hall This is the latest Web Development toolkit that Mashable collects, including drag-and-drop Web application creation tools, code libraries, project management, test programs, and frameworks that support a variety of programming languages, from Ajax to Ruby to Pytho N。   This is the first part.   Web program Create Class Dreamface-a framework for creating personalized WEB programs. Organi ...

Analysis and comparison of Open source IaaS cloud Platform

As an important form of cloud computing, IaaS services have a wide range of open source and commercial cloud platform scenarios. This article is based on the use of open source IaaS cloud platform to develop public and private cloud management platform perspective, introduced and compared eucalyptus, Opennebula, Cloudstack and OpenStack, such as open source IaaS cloud platform. The characteristics of the successful cloud platform from AWS AWS is the most successful cloud computing platform, the most important feature of the system architecture is to open the data and function through the Web service interface.

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