My Tech Blog (elb)

1. Sticky Sessions (Session Affinity)고정 세션 또는 세션 밀접성It is possible to implement stickiness so that the same client is alwyas redirected to the same instance behind a load balancerThis works for Classic Load Balancers & Application Load BalancersThe "cookie" used for stickiness has an expiration date you control Use case: make sure the user doesn't lose his session dataEnabling stickiness may bri..

1. Scalability & High AvailabilityScalability(확장성) means that an application / system can handle greater loads by adapting.There are two kinds of scalability  - Vertical Scalability - Horizontal Scalability (=elasticity) 탄력성, 수평 확장성Scalability is linked but different to High Availability ( 확장성 != 고가용성)2. Vertical Scalability - 수직 확장성Vertically scalability means increasing the size of the instanc..