System Design Load Balancers

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Load Balancing: • It helps to distribute load across multiple resources. • It also keep track of status of all the resources while distributing requests. If a server is not available, it stops sending traffic. • LB can be added at three places: • Between user web-server • Between web-servers internal servers (Application servers or cache servers) • Between Internal platform layer DB • Types of load balancers: • Smart Clients • It'll take a pool of service hosts balances load, manage them (Detect recovered host, deal with adding new hosts, etc) • Hardware LB: • They are hardware which works as LB, but are very expensive. • Even big companies use them only as first point of contact use other machanism for load-balancing. • Software Load balancers: • It's hybrid approach. HAProxy is popular open source software LB. • Every client request on this port (where HAProxy is running) will be received by proxy then passed to the backend service in efficient way. • HAProxy manages health check will remove or add machines to those pools. • We should start with these. • Ways of load balancing: • Round robin • Round robin with weighted server • In this video, we're going to reveal Load balancers used in System Design: • What is Load balancer • Where Load balancer can be added • Types of load balancer • Algorithms to implement Load Balancing • This problem is similar to following: • what is load balancer and how it works, • load balancer, • load balancer tutorial, • load balancer wiki, • load balancer definition, • load balancer software, • HAProxy load balancer configuration, • load balancer nginx • • ★☆★ SUBSCRIBE TO ME ON YOUTUBE: ★☆★ • https://www.youtube.com/codingsimplif... • CHECK OUT CODING SIMPLIFIED • / codingsimplified • I started my YouTube channel, Coding Simplified, during Dec of 2015. • Since then, I've published over 200+ videos. My account is Partner Verified and I get my earnings direct deposited into my account every month. • ★☆★ VIEW THE BLOG POST: ★☆★ • http://thecodingsimplified.com • ★☆★ SEND EMAIL At: ★☆★ • Email: [email protected]

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