Database Deadlock Example

Introduction with the advent of the cloud computing era, various types of Internet applications are emerging, the relevant data model, distributed architecture, data storage and other database related technical indicators also put forward new requirements. Although the traditional relational database has occupied the unshakable position in the data storage, but because of its inherent limitation, has been unable to satisfy the cloud computing age to the data expansion, reads and writes the speed, the support capacity as well as the construction and the operation cost request. The era of cloud computing has put forward a new demand for database technology, which is mainly manifested in the following aspects. Mass data processing: to ...

"IT168" I have always felt that nosql in fact very easy to understand, I have also had a very in-depth study of NoSQL, but in the recent preparation of yuntable chart, found that NoSQL not only very profound, 　　And my personal understanding of NoSQL is only superficial, but I am still a "shame and then Yong" people, so after a period of study, from the sixth part of this series, will talk to you nosql, and this article will be the main to do a NoSQL database review. ...

This two-day machine is broken, is being sent to repair, write a series of large http://www.aliyun.com/zixun/aggregation/11116.html "> website architecture articles, 　　Hope to have a career in the Internet to make some of the webmaster friends help. Note: The large Web site architecture here only includes highly interactive and highly interactive data-type large Web sites, based on well-known reasons, we do not talk about the news class and some rely on HTML static can be implemented architecture, ...

When using the traditional "advertising + sales + stores" development of growth encountered difficulties, corporate marketers naturally think through E-commerce, e-mail, mail-order and telemarketing, as well as sales of advertising (such as television shopping) for marketing and direct sales, but why some enterprises harvest is only a flash in the pan, And some companies have broken through the dilemma, gaining sustained sales and profit growth, and even created a new business model to get the explosion of the line of growth? This article attempts to through some of our consulting cases and familiar with the enterprise case, opened the use of direct duplex marketing success ...

Pagerduty, an emerging internet start-up, is a product that can send reminders on the server, including on-screen displays, phone calls, SMS notices, email announcements, and more. At present, AdMob, 37Signals, StackOverflow, Instagram and so on have adopted the pagerduty as the message notification as well as the sudden event processing tool. Doug Barth, author of this article, shared how Pagerduty successfully migrated existing system MySQL to the XTRADB cluster to ...

In fact.   　　 Cloud computing technology is the combination of software SaaS, Grid computing, virtualization three concepts. Virtualization of Cloud Computing Technology (virtualization) virtualization is the virtualization of infrastructure (virtualization), the core of which is the combination of traditional mature cluster technology and partitioning technology. Cluster computing (Cluster comput ...

If you write a "raise application" to the boss, even if the other side only reply two words "ok", it is very good to be moved. 　　But if the mail comes from your headache seekers, even if the other side of the mail written in a "Orchid pavilion," may also escape the fate of "report as spam". 　　Therefore, this article only discusses: In the staff have basic professional quality, no injustice between colleagues and no one to the great aunt, how to write the other people feel professional and happy to respond to the message. In addition, this is just an article blo ...

Now almost any application, such as a website, a web app and a mobile app, needs a picture display function, which is very important for the picture function from the bottom up. Must have a forward-looking planning picture server, picture upload and download speed is of crucial importance, of course, this is not to say that it is to engage in a very NB architecture, at least with some scalability and stability. Although all kinds of architecture design, I am here to talk about some of my personal ideas. For the picture server IO is undoubtedly the most serious resource consumption, for web applications need to picture service ...

Intermediary trading http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnosis Taobao guest Cloud host Technology Hall I am engaged in the site to establish the industry, webmaster Partners are said to do a professional site webmaster, you can save a lot of strength , the actual proof is really how, the current site to establish industry Shoshido, industry partners are living more hard, so I had to sword go slant, also use their own advantages, do the webmaster to subsidize the home. First sound ...

In the story of cloud computing, the process is quite smooth, you only need to gently press the button. This is true for simple applications that are independent and do not rely on external systems or third-party application interactions. Even for some of the more complex cloud environment deployment, you can also follow the following points to avoid traffic congestion: 1, check the relevant certification. 　　 　　To avoid the deployment of traffic jams and accidents, the qualification audits of the relevant deployment vendors are important (even in most cases it is necessary to check the developer's Certificate of Competency). 2.