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MicroServices – Part 4 : Spring Cloud Circuit Breaker using Netflix Hystrix

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In the microservices world, to fulfill a client request one microservice may need to talk to other microservices. We should minimize this kind of direct dependencies on other microservices but in some cases it is unavoidable. If a microservice is down or not functioning properly then the issue may cascade up to the upstream services. Netflix created Hystrix library implementing ...

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MicroServices – Part 3 : Spring Cloud Service Registry and Discovery

spring-interview-questions-answers

In the microservices world, Service Registry and Discovery plays an important role because we most likely run multiple instances of services and we need a mechanism to call other services without hardcoding their hostnames or port numbers. In addition to that, in Cloud environments service instances may come up and go down anytime. So we need some automatic service registration ...

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MicroServices using Spring Boot & Spring Cloud – Part 1 : Overview

Nowadays MicroServices is the hot buzzword in software development and many organizations prefer building their enterprise applications using MicroServices architecture. In Java community, SpringBoot is the most widely used framework for building both monoliths and microservices. I am planning to write a series of articles covering how to build microservices using SpringBoot and SpringCloud. In this article we are going ...

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Using Apache Kafka for Asynchronous Communication in Microservices

While microservice architecture might not be a silver bullet for all systems, it definitely has its advantages, especially when building a complex system with a lot of different components. Of course, if you’re considering microservices, you have to give serious thought to how the different services will communicate. In this post, we’ll look at how to set up an Apache ...

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Traffic Shadowing With Istio: Reducing the Risk of Code Release

We’ve been talking about Istio and service mesh recently (follow along @christianposta for the latest) but one aspect of Istio can be glossed over. One of the most important aspects of Istio.io is its ability to control the routing of traffic between services. With this fine-grained control of application-level traffic, we can do interesting resilience things like routing around failures, ...

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Comparing Envoy and Istio Circuit Breaking With Netflix OSS Hystrix

When we build services architectures (Service Oriented Architecture, Microservices, the next incarnation, etc), we end up making a lot more calls over the network. The network is perilous. We try to build redundancy into our services so that we can experience failures in our system and still move forward and process customer requests. An important part of this puzzle of ...

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