Purpose Of Load Balancer

Yesterday, January 11, 2012, users @fenng wrote an article criticizing the Ministry of Railways online booking system tickets, http://www.12306.cn [1]. At the same time in Sina sent a fiery microblogging, "to your mother's high-speed processing of massive affairs system", aroused hot [2]. Spring Festival approaching, we can not buy the ticket, catch up with the reunion of his family thirty, anxious mood can be understood. However, open the table scolded, only to vent their emotions, can not solve the practical problems. Developing a booking system is not difficult, difficult to deal with ...

DoS (Denial of service), the abbreviation for Denial-of-service, refers to the intentional attack on the network protocol implementation of the flaw or directly through brute means to deplete the object of the target resources, the purpose is to make the destination computer or network can not provide normal services, so that the target system stop responding to even crash. These service resources include network bandwidth, file system space capacity, open processes, or allowed connections. This attack will lead to a lack of resources, no matter how fast the processing speed of the computer, the amount of memory, the speed of network bandwidth can not avoid the impact of this attack. ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall yesterday, January 11, 2012, Netizen @fenng wrote an article, criticized Railway train ticket online ordering system, http://www.12306.cn [1]. 　　At the same time in Sina issued a fierce rhetoric microblogging, "go to your mother's ' massive transaction high speed processing system '", causing hot discussion [2]. The Spring Festival will arrive, we cannot buy the ticket, cannot catch up with the family reunion of the New Year Eve, the anxious mood can understand. ...

There is a concept of an abstract file system in Hadoop that has several different subclass implementations, one of which is the HDFS represented by the Distributedfilesystem class. In the 1.x version of Hadoop, HDFS has a namenode single point of failure, and it is designed for streaming data access to large files and is not suitable for random reads and writes to a large number of small files. This article explores the use of other storage systems, such as OpenStack Swift object storage, as ...

"China Cloud net Exclusive" Chen Whilin, China Cloud Network chief Consultant 4 case study-Amazon AWS 4.1 Amazon AWS System Architecture Amazon AWS was launched in 2006 and belongs to the IaaS (infrastructure as a service) in cloud computing services. Amazon AWS provides data center clusters in various regions of the world (Region). It is divided into 4 major areas. Including: North Amerian Re ...

OpenStack Object Storage (Swift) is one of the subprojects of the OpenStack Open source Cloud project, known as Object storage, which provides powerful extensibility, redundancy, and durability. This article will describe swift in terms of architecture, principles, and practices. Swift is not a file system or a real-time data storage system, which is called object storage and is used for long-term storage of permanent types of static data that can be retrieved, adjusted, and updated as necessary. Examples of data types that are best suited for storage are virtual machine mirroring, picture saving ...

"China Cloud net Exclusive" Chen Whilin, China Cloud Network chief Consultant 4 case study-Amazon AWS 4.1 Amazon AWS System Architecture Amazon AWS was launched in 2006 and belongs to the IaaS (infrastructure as a service) in cloud computing services. Amazon AWS provides data center clusters in various regions of the world (Region). It is divided into 4 major areas. Including: North Amerian Re ...

Cloud computing business applications originated in the IT Internet, and quickly infiltrated all walks of life, triggering the use of cloud computing operators, the Chinese operators in the cloud computing research and use of comparable, ranked the industry's advanced level. What benefits does cloud computing bring to operators? How should operators make cloud computing work for themselves? 　　The author gives some advice on how to use different cloud computing technologies to bring benefits to operators ' business. Type one: Business Cloud resource pool purpose: reduce TCO, ...

Moderator: Ladies and gentlemen, good afternoon, here is the third forum, about cloud practice and cloud application. We all know that the concept of cloud began in China in the 2006, from the first day of entering China has aroused widespread concern in the community, so, 2007, 2008, 2009, the social media magazines are concerned about, to 2011 years, we call the year of Chinese cloud computing. Cloud after more than a year of practice and application, we have what applications, what experience to share with you, this is the theme of our forum. Here we have the first guest speaker, CiTR ...

Today, cloud computing has completely replaced the "social", and become the industry has been the most discussed but the most difficult to understand technical wave. Services such as Dropbox, iCloud and Google Drive have become mainstream, and consumers such as Evernote, Wunderlist and Pocket are using it every day without knowing they are using cloud applications. While the online backup and synchronization service has been providing personal clouds for years, its uses and general needs have been proven on smartphones and tablets. With consumers in various ...