Replaced by Spring Cloud load balancer
-- Load balancing is the process of distributing traffic among different instances of the same application
-- To create a fault-tolerant system, it's common to run multiple instances of each application.

Replaced by Spring Cloud Gateway
-- It provides a flexible way of routing requests based on a number of criteria
-- Spring Cloud Gateway is a library for building an API gateway

Replaced by Resilience4j
-- Resilience4j is a lightweight fault tolerance library inspired by Netflix Hystrix, but designed for functional programming. Resilience4j provides higher-order functions (decorators) to enhance any functional interface, lambda expression or method reference with a Circuit Breaker, Rate Limiter, Retry or Bulkhead.

-- Containerize MS and run it using docker and docker compose

-- Orchestrates all your microservices using kubernetes

-- An instance is a microservice copy

-- Has 2 main features MS registration, and MS discovery

-- Java library that helps us build resilient and fault-tolerant applications