Load Balancing

Load balancing is an important component of high availability infrastructures that are widely used to increase the performance and reliability of websites, applications, databases and other services by distributing the workload across multiple servers.

With this process, visitors to the system are efficiently distributed among servers, which can be called a server group or server pool, equally or within the framework of determined rules. The systems that perform these load balancing operations between both application and database servers are called "load balancers".

In a system that does not use load balancing, users connect to a single web server on which this domain name is running, if they want to access a web service such as "" directly. As a result, users cannot access the website in case of a problem that may occur on this server.

In addition, if many users try to access the site at the same time, since the overload cannot be met through a single server, slowdown in loading times and eventually access interruptions may occur.

This "single point of failure" situation can be eliminated with at least one additional server and load balancer to be added to the system architecture. Typically, servers running behind the load balancer will have the same content, so users will encounter the same output no matter which server they access.

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Latest Updates on Jan 20, 2022