global load balancing dns

device in front of the cluster to achieve traffic distribution.Load Balancing (Balance), which means that load (work tasks, access requests) are balanced and distributed across multiple operating units (servers, components) for execution. is the ultimate solution for high-performance, single-point-of-failure (high availability), scalability (horizontal scaling).This article is the first article on

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balancing servers in a load-balanced system, the various heartbeat tests sent between these load-balanced servers consume a lot of resources. And because many L3/4 load-balancing servers are inherently hardware-based, they can work very fast and even meet the processing pow

the number of VIPs will be more.Nginx can be used as the LVS node machine, one can use Nginx function, the second is the performance of Nginx can be used. Of course, this level can also directly use the function of Squid,squid is weaker than Nginx, performance is also inferior to nginx.Nginx can also be used as a middle-tier agent, this level nginx basically no opponent, the only one can shake Nginx only lighttpd, but lighttpd at present has not been able to do nginx full function, configuratio

the number of VIPs will be more.Nginx can be used as the LVS node machine, one can use Nginx function, the second is the performance of Nginx can be used. Of course, this level can also directly use the function of Squid,squid is weaker than Nginx, performance is also inferior to nginx.Nginx can also be used as a middle-tier agent, this level nginx basically no opponent, the only one can shake Nginx only lighttpd, but lighttpd at present has not been able to do nginx full function, configuratio

describes the device objects used by Server Load balancer and the network layers of applications (refer to the OSI reference model) and the geographical structure of the application. Software/hardware Load Balancing ()A software Load Balancing solution is to install one or

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balancing requirements.software Load Balancing solution is to install one or more additional software on one or more servers corresponding operating system to achieve load balancing, such as DNS

upper limit, and there is basically no consumption in memory and CPU. 2. Low configuration, which is usually a major disadvantage, but it is also a major advantage. because there are not many configurable options, you do not need to touch the server frequently except increase or decrease the server, this greatly reduces the likelihood of human error. 3. Work is stable. Because of its strong load resistance capability, high stability is also a logic.

(the native server load Balance) and geographical load balancing (global server load Balance), or load balancing for local server groups, The other refers to the