Database Concurrency Issues

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, ...

Orient DB is a scalable document database that supports ACID transaction processing. Implemented using Java 5. Orientdb is an Open-source NoSQL database management system, written in Java, a document-type database that supports acid tx,http://www.aliyun.com/zixun/aggregation/16666.html "> Indexes,asynch queries,sql Layer ...

[YORK HCC & HENC2013 Zhuangao] Huawei, the world's leading provider of information and communications solutions, today at the Huawei Cloud Computing Conference HCC2013 and Dream Digital Co., Ltd. jointly released by the two sides to develop one machine. As part of HCC, Huawei Partners participated in HCC and demonstrated its advanced product technology and proven solutions in massive data management and intelligent analysis in recent years. Dream Database is a high-performance database product with completely independent intellectual property rights launched by Wuhan Huagong Dream Database Co., Ltd. It uses "three ...

In mailbox rapid expansion process, one of the performance problems is the MongoDB database level write lock, the time spent in the lock waiting process, directly reflects the user's use of the service process delay. To address this long-standing problem, we decided to migrate a common set of MongoDB (storing mail-related data) to a separate cluster. According to our inference, this will reduce the lock latency by 50%, and we can add more fragments, and we expect to be able to optimize and manage different types of data independently. We start from Mon ...

Overview How to deal with high concurrency, large traffic? How to ensure data security and database throughput? How do I make data table changes under massive data? Doubanfs and DOUBANDB characteristics and technology implementation? During the QConBeijing2009, the Infoq Chinese station was fortunate enough to interview Hong Qiangning and discuss related topics. Personal Profile Hong Qiangning, graduated from Tsinghua University in 2002, is currently the chief architect of Beijing Watercress Interactive Technology Co., Ltd. Hong Qiangning and his technical team are committed to using technology to improve people's culture and quality of life ...

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Intermediary transaction SEO diagnosis Taobao guest Cloud host Technology Hall log is a very broad concept in computer systems, and any program may output logs: Operating system kernel, various application servers, and so on. 　　The content, size and use of the log are different, it is difficult to generalize. The logs in the log processing method discussed in this article refer only to Web logs. There is no precise definition, which may include, but is not limited to, user access logs generated by various front-end Web servers--apache, LIGHTTPD, Tomcat, and ...

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 ...

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