Load Balancer Cache

Network Load Balancing allows you to propagate incoming requests to up to 32 servers that can use up to 32 servers to share external network request services. Network Load Balancing technology ensures that they can respond quickly even in heavy loads. Network Load Balancing must provide only one IP address (or domain name) externally. 　　If one or more servers in Network Load Balancing are unavailable, the service is not interrupted. Network Load Balancing is automatically detected when the server is unavailable, and can be quickly in the remaining ...

1. In essence, Network Load Balancing is an implementation of distributed job scheduling system. As the controller of Network request allocation, the equalizer uses centralized or distributed policy to allocate network service requests according to the current processing capability of cluster nodes, and monitors the effective state of each node in the lifecycle of each service request. Generally speaking, the balancer has the following characteristics for the dispatch of the request: The Network Service request must be a manageable request allocation to the user is transparent best able to provide Http://www.aliyu ...

Intermediary transaction SEO diagnosis Taobao Guest Cloud mainframe technology hall with the advent of the 11 long holiday, everyone to the Ministry of Railways 12306 of the discussion again. This article (original) from 12306 website extension to the site performance of a lot of discussion, for entrepreneurs and technology enthusiasts have a strong reference. 　　The author Chenhao (Weibo) has 14 years of experience in software development, 8 years of project and team management experience. 12306.cn website Hung, was scolded by the people all over the country. I've been here for two days.

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 ...

PaaS (Platform-as-a-service) is a kind of cloud service, the service provider not only provides on-demand hardware and operating system services, but also provides the application platform and solution stack. For developers, PAAs greatly reduces the cost and pain of it deployments, providing resources for applications to scale more easily as needed. JVMs, application servers, and deployment packages (for example, war and ear) provide natural isolation for Java applications, allowing different developers to deploy applications in the same infrastructure, so JAV ...

"Editor's note" WiX has been operating the site for a long time, and after the launch of the WYSIWYG web platform based on HTML5, users have established more than 54 million sites in the company, and most of these sites have less than 100 solar PV. Since the PV of each page is low, the traditional caching strategy does not apply. Even so, however, the company has done so with only 4 Web servers. Recently, WiX chief back-end engineer Aviran Mordo in "...

Nifty has been operating the site for a long time, and after the launch of the WYSIWYG web platform based on HTML5, users have built more than 54 million sites in the company, and most of them have less than 100 solar PV. Since the PV of each page is low, the traditional caching strategy does not apply. Even so, however, the company has done so with only 4 Web servers. Recently, Wix chief back-end engineer Aviran Mordo in "Wix architecture ...

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. ...

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. ...

After Facebook abandoned Cassandra, HBase 0.89 was given a lot of stability optimizations to make it truly an industrial-grade, structured data storage retrieval system. Facebook's Puma, Titan, ODS time Series monitoring system uses hbase as a back-end data storage System. 　　HBase is also used in some projects of domestic companies. HBase subordinate to the Hadoop ecosystem, from the beginning of the design of the system is very focused on the expansion of the dynamic expansion of the cluster, load are ...