Load Balancer
A network device or software application that distributes incoming network traffic across multiple servers to ensure optimal resource utilization and prevent any single server from becoming overwhelmed. Load balancers act as intermediaries between clients and server farms, intelligently routing requests based on various algorithms such as round-robin, least connections, or weighted distribution.
Benefits and Functionality
Load balancers provide several critical advantages including improved application performance, enhanced fault tolerance, and seamless scalability. They continuously monitor server health and automatically redirect traffic away from failed or overloaded servers, ensuring uninterrupted service availability. Modern load balancers also offer SSL termination, session persistence, and content-based routing capabilities.
Types of Load Balancing
There are several types of load balancing implementations, including Layer 4 (transport layer) and Layer 7 (application layer) load balancing. Hardware load balancers provide dedicated physical devices for high-performance environments, while software-based solutions offer flexibility and cost-effectiveness for cloud deployments.
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