Load balancing is one of the most important tactics to consider when developing a web application because it is critical to the user's experience and the speed with which they can explore the application.
"Balance, also known as load balancing, is a method of distributing network traffic equitably among a set of resources that support an application. Modern applications must process millions of users concurrently and return the correct text, videos, images, and other data to each user quickly and reliably," according to the Amazon page.
Best practices for web application load balancing
Any developer or expert who intends to use a load balancing method must follow specific best practices in order for the strategy to be successful. They are as follows:
- Using a load balancer: A load balancer is a hardware or software that distributes incoming traffic over numerous servers so that no server becomes overburdened. Improves website availability by optimizing resource consumption, reducing downtime, and reducing downtime.
- Implement redundancy: Having redundant servers is critical for minimizing downtime and ensuring high availability. To avoid a single point of failure, each cluster should include two or more servers.
- Monitor your Load Balancer and servers on a regular basis to ensure that they are up and working as planned. Set up alerts and notifications to be notified of problems.
- Improve network performance: Ensure that your network connections are quick, dependable, and secure. To increase website performance, consider implementing content delivery networks (CDNs).
- Selecting the Best Load Balancing Algorithm: The pros and limitations of various load balancing algorithms vary. Choose the best one for your individual application and use situation.
- Use SSL certificates: security should be a top priority at all times. SSL certificates safeguard data in transit by encrypting all client-server interactions.
- Conduct frequent tests: Test your load balancing configuration on a regular basis to confirm that it fits your needs and performs as planned. This can aid in the detection of problems before they become issues for your users.
- Adjust the scale: Ascertain that your load balancing solution is scalable and capable of accommodating future development. Plan for future scalability requirements and execute accordingly.
Recommended tools for load balancing
Here are some popular load balancing tools for web applications:
- HAProxy: HAProxy is an open source load balancing solution used by many companies for web applications. It uses a round-robin algorithm to distribute load among servers and supports SSL termination and content inspection.
- NGINX: NGINX is a popular load balancing tool that can be used to selectively distribute traffic to back-end servers. Supports load balancing across HTTP, TCP, and UDP protocols.
- Apache HTTP Server: This is a widely used load balancing tool. It provides support for a variety of operating systems and supports various load balancing algorithms such as round-robin and IP hashing.
- Microsoft Azure Load Balancer: It is a cloud-based load balancing tool that can be used to distribute traffic across multiple virtual machines. It supports autoscaling and integrates well with other Microsoft Azure services.
- Amazon Elastic Load Balancer: One of Amazon's most widely used tools, it provides scalable, elastic load balancing solutions for AWS cloud-based web applications. It supports HTTP, HTTPS, and SSL protocols in multiple zones and provides advanced security features such as SSL termination and access controls.
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