What is a Load Balancer? #4906
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NadeeshaMedagama
malikaweerakoon1974
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What is a Load Balancer?
#4906
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A Load Balancer is a component that distributes incoming client requests across multiple servers to improve performance, availability, and reliability. Instead of sending all traffic to one server, it spreads requests among several servers. Without Load Balancer Problems: Server overload |
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A Load Balancer is a component that distributes incoming client requests across multiple servers to improve performance, availability, and reliability.
Instead of sending all traffic to one server, it spreads requests among several servers.
Without Load Balancer
10,000 Users
│
▼
Web Server
Problems:
Server overload
Slow response time
Single point of failure
With Load Balancer
10,000 Users
│
▼
Load Balancer
/ |
▼ ▼ ▼
Server1 Server2 Server3
Advantages
High availability
Better performance
Automatic traffic distribution
Fault tolerance
Horizontal scaling
Popular Load Balancers
Nginx
HAProxy
AWS Application Load Balancer (ALB)
AWS Network Load Balancer (NLB)