Load balancer or load balancing acts as a “traffic cop” that sits in front of your server and routes client requests across all servers capable of fulfilling those requests in a way that maximizes speed and capacity utilization and ensures that no one server is overworked, which can decrease performance.
If one server goes down, load balancing directs traffic to the remaining online servers. When a new server is added to the server group, the load balancer automatically starts sending requests to it.
Load Balancing is a method of distributing traffic to multiple servers so as not to overload one server. As a result, the server strength is balanced so that does not occur overload.
Regardless of whether it is hardware or software, or what algorithm it uses, the load balancer streams traffic to different web servers in the resource pool to ensure that no single server is overworked and then unreliable. Load balancers effectively minimize server response times and maximize throughput.
Indeed, the role of the load balancer is sometimes equated with that of the traffic cop, as it is intended to systematically route requests to the right location at specific times, thereby preventing costly congestion and unexpected incidents. Load balancers must ultimately provide the performance and security necessary to sustain a complex IT environment, as well as the complex workflows that occur within it.
Load balancing is the most scalable methodology for handling the multiple requests of modern multi-device multi-application workflows. Alongside a platform that allows seamless access to multiple applications, files, and desktops in today’s digital workspaces, load balancing supports a more consistent and reliable end user experience for employees.
How Load Balancing Work
When a user wants to access an application, the first thing that is passed is the load balancer. When there is incoming traffic, load balancers will distribute the traffic to one of the three available servers evenly and optimally. As a result, there are no more server overloads due to too much traffic.
There are several algorithms for implementing load balancing:
- Round Robin