Why Load Balancing is important to Cloud Computing Environments

Almost all industries are shifting to cloud computing because of its prominent technology that allows thousands of applications and files to be hosted on the cloud. The use of the cloud is inseparable from load balancing to create a stable and efficient cloud system. It can distribute traffic across multiple servers to improve application availability and prevent overload.
June 7, 2022

What is Cloud Computing And Its Benefits?

Cloud computing refers to the distribution of IT resources such as data storage, servers, databases, networking, and software on a pay-as-you-go basis. Cloud computing, in simple words, allows you to store and access data and apps over the internet rather than on your computer's hard drive. There are numerous advantages to cloud computing, including:

1. Elasticity: Cloud computing enables customers to scale resources up and down according to their business requirements.

2. Flexibility: The cloud enables us to build a flexible infrastructure. It gives you access to a wide selection of cutting-edge technologies that enables you to scale up more quickly.

3. Simple Deployment: With only a few clicks, you may spread your application to multiple areas.

4. Cost Savings: The cloud's on-demand spending eliminates wasted server costs, resulting in cost savings.

What is Load Balancing?

When we hear the term "load balancing," the first thing that springs to mind is anything that balances the load. In Cloud Computing, load balancing serves precisely this purpose. Load balancing is the technique of spreading a workload or traffic among numerous servers in a cloud environment so that they can operate smoothly and efficiently. Stress balancing is primarily used to protect servers from undue load and potential failure due to a heavy load.

We might think of load balancing in the cloud as a "Traffic Cop" who keeps an eye on a potentially chaotic situation. It also performs health checks to guarantee that servers are always available and running well.

Load balancing is a common networking technique for distributing traffic among numerous servers in a server farm. Load balancers increase the availability and responsiveness of applications while also preventing server overload. Each load balancer lies between client devices and backend servers, accepting and then distributing incoming requests to any server that can handle them.

How Does Load Balancing Work?

A load balancer could be one of the following

  • A physical device, a virtualized instance running on specialized hardware, or a software process are all examples of virtualized instances.
  • Built into application delivery controllers (ADCs) to improve the performance and security of three-tier web and microservices-based applications, regardless of where they're hosted.
  • Able to use a variety of load balancing algorithms, such as round robin, server response time, and the least connection method, to distribute traffic according to current requirements.

Load balancers monitor the health of backend resources and direct traffic away from servers that can't handle requests. A load balancer distributes traffic to multiple web servers in the resource pool, regardless of whether it's hardware or software, or what algorithm(s) it employs. This ensures that no single server becomes overworked and hence unreliable. It effectively reduces the time it takes for a server to respond and increases throughput.

A load balancer's duty is sometimes compared to that of a traffic cop, as it is designed to systematically route requests to the appropriate locations at any given time, avoiding costly bottlenecks and unplanned accidents. Load balancers should, in the end, provide the performance and security needed to keep complex IT environments running smoothly.

Load balancing is the most scalable way for dealing with the large number of requests generated by today's multi-app, multi-device workflows. Load balancing, in conjunction with systems that offer seamless access to the multiple applications and desktops within today's digital workspaces, helps employees have a more consistent and reliable end-user experience.

Hardware vs Software Based Load Balancing

The following is how hardware-based load balancers work:

  • They're usually high-performance equipment that can securely process multiple gigabits of traffic from a variety of sources.
  • Built-in virtualization features may be included in these appliances, allowing multiple virtual load balancer instances to be consolidated on the same hardware.
  • This, among other things, enables for more flexible multi-tenant architectures and complete tenant isolation.

Software-based load balancers, on the other hand:

  • Can completely replace load balancing hardware while providing comparable capability and flexibility.
  • On bare-metal servers, it can run on standard hypervisors, containers, or as Linux processes with minimum overhead.
  • Are extremely customizable based on the use cases and technological requirements at hand.
  • Can help you save space and money on hardware.

How Load Balancing is Important  to Cloud Computing Environments?

We may conclude that load balancing plays a significant role in cloud systems after learning more about it. It is a critical component of the cloud computing architecture that ensures server availability and workload distribution. Consider the following advantages of load balancing in a cloud computing environment:

  1. Improve Performance: Using a load balancer, you can add or delete any resource without interrupting work in any place. By avoiding downtime, I will improve the performance of your application.
  2. Flexibility: Stable load capability
  3. Improve Performance: The load balancer provides the flexibility to handle any unexpected issues, such as when one of your network's nodes breaks, the load balancer steps in and redirects your application to another node. It enables server upkeep.
  4. Scalability: We all know that cloud computing is more scalable than traditional computing. If not managed effectively, a spike in traffic might cause issues with the program and its performance. Load balancing enables you to add one or more virtual servers in response to demand without affecting service. When a website experiences excessive traffic, a new server is brought online, and the load balancer efficiently accommodates the additional server without compromising application performance. This procedure frequently necessitates some downtime.
  5. Redundancy: Load balancing comes with built-in redundancy when used to maintain an application. This implies that if your server goes down, the load balancer will redirect all traffic to another server without harming the user's experience.
  6. Improve security: Load balancing does more than just manage traffic; it also aids in the neutralization of DDOS attacks. When malicious activity is detected on the application, the load balancer not only detects it, but also switches to a different server to neutralize the attack.

IT organizations can assure scalability and availability of services by using Application Delivery Controllers (ADCs) with load balancing capabilities. Its extensive traffic management capabilities can assist a company in efficiently routing requests to the appropriate resources for each end user. Many other functions (such as encryption, authentication, and web application firewalling) are available through an ADC, which can provide a single point of control for securing, managing, and monitoring multiple applications and services across multiple environments while ensuring the best end-user experience.


A load balancer sits in front of our servers, acting as a "traffic cop," directing client requests across all servers capable of satisfying those requests in a way that maximizes speed and capacity utilization while ensuring that no single server is overworked, potentially degrading performance. The load balancer transfers traffic to the remaining online servers if a single server goes down. When a new server is added to a server group, the load balancer begins sending requests to it automatically. Regardless of the form, load balancing tools distribute traffic across multiple servers to ensure that no single server is overloaded. Effectively, load balancing minimizes server response times.

The load balancing function is the same as the traffic police whose job is to prevent traffic jams and unwanted road incidents. The load balancer must be able to ensure the smooth flow of network traffic while providing a sense of security in complex network work systems. Load balancing is becoming the most scalable method of handling multiple access requests from multi-application and multi-device workflows. With today's digital world seamless access, load balancing ensures a better user experience.

Written by Denny Fardian
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