What is Load Balancing?
Load balancing distributes incoming network traffic across multiple servers to ensure no single server is overwhelmed, improving application availability and performance.
Load Balancing Explained
Load balancing distributes incoming requests across multiple server instances, preventing any single server from becoming a bottleneck. A load balancer sits in front of your servers and routes each request to the most appropriate instance using algorithms like round-robin, least connections, or weighted distribution. Load balancing is essential for high-availability applications because if one server fails, the load balancer automatically routes traffic to healthy servers. At M3L Software, we implement load balancing for applications that need high availability and scalability. Common setups include Nginx as a reverse proxy/load balancer, AWS Application Load Balancer, and Kubernetes' built-in load balancing for containerized services.
Key Features
Common Use Cases
Frequently Asked Questions
When do I need load balancing?
When a single server can't handle your traffic, when you need zero-downtime deployments, or when you need high availability. Even low-traffic apps benefit from load balancing for failover protection.
What load balancer should I use?
Nginx is excellent for simple setups. AWS ALB for cloud applications. Kubernetes handles load balancing for containerized services. Cloudflare provides DNS-level load balancing.
Does load balancing improve performance?
Yes. By distributing traffic, each server handles fewer requests, reducing response times. Load balancers also cache responses and terminate SSL, further improving performance.
Related Terms
Kubernetes
Kubernetes (K8s) is an open-source container orchestration platform that automates deployment, scaling, and management of containerized applications across clusters of machines.
Read moreDocker
Docker is a platform for building, shipping, and running applications in lightweight, isolated containers that package code with all dependencies for consistent deployment.
Read moreAWS
Amazon Web Services (AWS) is the world's leading cloud computing platform, offering 200+ services including computing, storage, databases, AI, and deployment infrastructure.
Read moreCDN
A Content Delivery Network (CDN) is a distributed network of servers that delivers web content to users from the nearest geographic location, improving speed and reliability.
Read moreMicroservices
Microservices is an architectural pattern where an application is built as a collection of small, independent services that communicate over APIs, each responsible for a specific business function.
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