Publish Subscribe Server

The logical design of database is a very broad problem. In this paper, the main key design of the table is discussed in the design of MS SQL Server, and the corresponding solutions are given. Primary key design status and problems about database table primary key design, in general, based on business requirements, based on business logic, the formation of primary key. For example, when sales to record sales, generally need two tables, one is the summary description of the sales list, records such as sales number, the total amount of a class of cases, and the other table record of each commodity ...

Ejabberd is a multi-platform, scalable, distributed, and fault-tolerant JABBER/XMPP Instant Messaging server. It includes Jabber servers such as multi-user chat, IRC transport, HTTP bindings, publish-Subscribe and PEP services. It supports http://www.aliyun.com/zixun/aggregation/14840.html "> virtual hosts, connecting transport (gateways) to other networks and connecting to Jabber servers. Other supported functions are: We ...

This series of articles shows you how to use reverse Ajax http://www.aliyun.com/zixun/aggregation/7332.html "> Technology to develop event-driven WEB programs." The 1th part describes reverse Ajax, polling, streaming, Comet, and long polling. Part 2nd describes how to use WebSocket and discusses the limitations of WEB servers that use Comet and WebSocket. The first ...

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 ...

This article for the submission from Tristan, is a translation of the article, the article is relatively long, but if you have a website or blog, many methods are still worth learning. Traffic is the currency in the network. The larger the site traffic, the easier it is to reach the target: make money, spread ideas, interact with others, or whatever. That's why I'm writing this article on 100 ways to improve web traffic. Just use some (or most) of the following methods to make sure your traffic increases dramatically. Blog 1. Add blogs to your site. If...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall for like me rookie class personage, newly created a website: The skin is interesting, every day is pondering how to promote. In fact, each of our webmaster is the first time to let others know their own site, and to browse the site, so that the new station can quickly reach their expected volume of browsing. 　　However, now the site is too much, so, make the site, more and more easy to promote the site, more and more difficult ah. Recently I organized some Web site traffic free upgrade methods and techniques to provide you webmaster reference, synthesis such as ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall wo new site: China Lele Network (zglll.cn), every day in pondering how to promote. In fact, each of our webmaster is the first time to let others know their own site, and to browse the site, so that the new station can quickly reach their expected volume of browsing. 　　However, now the site is too much, so, make the site, more and more easy to promote the site, more and more difficult ah. The following collection of some of the Web site to promote some of the methods and Skills for webmaster reference: ...

The intermediary transaction SEO diagnoses Taobao guest cloud host Technology Hall recently I summarized some website traffic free promotion method as well as the skill, for the webmaster reference, synthesizes as follows: Please read patiently, to your website traffic promotion really has the very big help, this post I will unceasingly add the new content. 1. Forum promotion is not a forum to promote the promotion of the Forum is definitely not a version of the ad, also not add the website address in the signature and then the crazy brush screen, so that both the energy and effect is not necessarily good, forum administrator just click a few mouse will be able to your posts all ...

The biggest difference between cloud-based applications and applications running in private data centers is scalability. The cloud provides the ability to scale on demand, extending and shrinking applications based on fluctuations in load. But the traditional application to give full play to the advantages of the cloud, not simply to deploy the application to the cloud is all right, but need to be based on the characteristics of the cloud around scalability to redesign the architecture, Recently AppDynamics's development preacher Dustin.whittle wrote about the application architecture suitable for cloud deployment, which has great inspiration for our traditional application to cloud deployment.

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall now many friends have started the website, all have their own home on the Internet. But many webmasters feel the hardest is how to promote their own website. Let the traffic of their own site more up. Now it's usually a way of popularizing the webmaster. 1. Forum promotion here said the forum promotion definitely is not in the Forum one edition pastes the advertisement, also is not the website address adds in the signature and then the crazy brush screen, that ...