Load balancing is a simple way to scale an application server infrastructure. As the demand for the application increases, new servers can be added to the resources and it is this load balancer that starts sending heavy traffic to the new server in a hassle-free manner.

A load balancer is a gadget that is known to distribute network or application traffic across a group server for optimizing operation, enhance availability, thereby, improving response for it.

A load balancer is a bridge between the client and the server that accepts incoming network and application traffic and then distributes this traffic all across the different backend servers with the help of different methods. Infect, a load enhancer is also responsible for preventing one application server from converting a single point of failure by means of balancing application requests all across the multiple servers. This, not only improves application availability buy also the responsiveness.

How does load balancing work?

When an application server is not available, then the load balancer routes all new requests for application to another available servers in the group.

Why are load balancers needed?

Load balancer is widely known to provide the base to build flexible networks by improving the performance and also security for different types of services and traffic, in addition to applications.

It is important to distribute processing as well as communication activity evenly all across the computer network is essential in order to maintain uniformity in devices and preventing overload on it.

Load balancing is significant for networks where it’s hard to calculate the number of requests that will be issued to a server. Those web sites that are very busy, generally, have two or more servers in order to distribute the load. In case, one server is busy, the requests are forwarded to other server.

Advantages of Load balancing

  • It improves distribution of loads in various computing resources such as network links, computers, disk drivers, etc.
  • It optimizes use of resources, minimum response time and also avoid overload to any single resources.
  • It increases the availability and reliability via redundancy

Load balancing typicallyoccupydevoted software or hardware, such as a multilayer switch or a Domain Name System server process.