Load Balancer
A system that distributes incoming network traffic across multiple servers to ensure high availability.
Definition
A load balancer distributes incoming network or application traffic across multiple backend servers to ensure no single server becomes overwhelmed, improving application responsiveness and availability. Load balancers use algorithms such as round-robin, least connections, or IP hash to route requests. They also perform health checks on servers, removing unhealthy instances from the pool. Load balancers can be hardware appliances, software solutions, or cloud-native services.
Example
“An e-commerce site uses a load balancer to distribute millions of Black Friday requests across 20 web servers, preventing any single server from crashing.”
Usage Examples
- 1
“The team applied load balancer best practices to improve their networking outcomes significantly.”
- 2
“Understanding load balancer is essential for anyone building a career in IT & Technology.”
When & How to Use
Use 'Load Balancer' when working in Networking contexts where a load balancer distributes incoming network or application traffic across multiple backend servers to ensure no single server becomes overwhelmed, improving application responsiveness and availability.
- ▸Applying load balancer principles during a networking project or initiative
- ▸Explaining load balancer to a junior team member or stakeholder unfamiliar with IT & Technology
- ▸Evaluating options or proposals using load balancer as a decision-making criterion
Etymology & Origin
The term 'Load Balancer' derives from professional usage and entered IT & Technology professional usage as the field formalised in the 20th century.
History & Evolution
The concept of load balancer has evolved alongside IT & Technology. Early practitioners relied on informal methods; structured approaches emerged with the professionalisation of networking in the mid-20th century. Today, load balancer is a standard part of IT & Technology practice globally.
Synonyms
- traffic distributor
- request dispatcher
- server load spreader
Antonyms / Opposites
- single server
- unbalanced traffic
Images
CC-licensed · free to useVideo
Related Terms
- high-availability
- auto-scaling
- reverse-proxy
- failover