Load Balancers and Load Balancers Algorithms

 Load Balancers

  • When all components are in same applications, all request comes to same servers then burden will increase on the same server. 
  • More the requests to the server, then the performance at the server side will be slow so the response time is high for clients.                                                                                                                                  Eg: Youtube, Myntra, Flipkart,.......(lakhs of users will send the request still the response time will be uniform for client) 
  • When burden increased on server it will process the request slowly and some times the server might crash also. 
  • To reduce the burden on the server, people use Load Balancer for the applications. => Load Balancer uses Load Balancing algorithms to balance the load. 
  • Our applications will be deployed in multiple servers and those servers will be connected to Load Balancer. 

How Load Balancer will distribute the load? 

  • Load Balancer will use Load Balancer Algorithms to distribute incoming request 2 servers. 


Load Balancers Algorithms 

  •  Round Robin: In Round Robin fashion the request will be processed in round robin ways(1,2,3, and again it repeats) 
  •  Sticky Session: Based on session object details stored in the server the balancing will happen. 
  •  IP Hashing: By implementing one formula on the server side, serverNo=hash(IP) the balancing will be done on the Load Balancer.

Load Balancer






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