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http://blog.jobbole.com/78067/This example is very good, very clear.The difficulty of feeling abstract Factory mode is how to classify, for example, a scene, or a strange one, now has a sword manufacturing plant and a knife manufacturing plant, respectively, can create a wooden and iron weapons,So, is the classification abstract by Muhe as standard, or with swords and knives as abstractions?Http://design-patterns.readthedocs.org/zh_CN/latest/creational_patterns/abstract_factory.html The article

Http://zhidao.baidu.com/link?url= Tskwdn3wr8kuxwmtehmnefty0konzbmk9xy-rimsdisa4h2neaecghqggbipz2w6nxrvd3mmcpbip5q6ketfpz03gdlzroh86p_eva8brpeLeveraging the components of Netflix and all the familiar tools, we can handle the technical challenges posed by microservices and distributed computing.Over the past year, microservices have become a hot term in the Software architecture field, and we can easily cite many of the comparative advantages it brings.

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HTTP and WebSocket, and non-web-friendly protocols that are used internally.The API Gateway can also provide a custom API for each client. Typically, it exposes a coarse-grained API to mobile clients. For example, consider a scenario where product details are considered. The API gateway can provide an endpoint (/PRODUCTDETAILS?PRODUCTID=XXX) that allows the mobile client to obtain all the product details through a single request. API gateways Process requests by invoking individual services (pr

Chapter 2 springboot + hystrix (1), springboothystrix Hystrix is a tool used in microservices for fusing and downgrading. Purpose: prevent multiple requests from being blocked due to a service call failure or call delay and call failure of multiple requests. 1. pom. xml (introduce the hystrix-core package)1 2. application. properties1 # hystrix2 hystrix. timeoutInMillions = 3000View Code (Set hystrix properties, the above is the "service call timeout time", other attribute settings see: https://

services by invoking multiple microservices. It can be transformed between a Web protocol and a non-web-friendly protocol used internally, such as the HTTP protocol and the WebSocket protocol. API Gateway can provide a custom API to the client. It exposes a coarse-grained API to mobile clients. Take the product final page of this usage scenario as an example. API Gateway provides a service delivery point (/PRODUCTDETAILS?PRODUCTID=XXX) that enables mobile clients to retrieve all the data from

Spring Cloud is comprised of a number of sub-projects, such as Spring Cloud Config, Spring Cloud Netflix, Spring Cloud Consul, and more, providing tools commonly used to build distributed systems and microservices, such as configuration management, service discovery, Circuit breakers, intelligent routing, micro-proxies, control buses, one-time tokens, global locks, select Masters, distributed sessions, and cluster status meet all the solutions needed

without losing the charm of its minimalist style. The original SoundCloud page is stamped here (need to flip the wall). Redesign of SoundCloud by Anton Skugarov 　　Top 3:youtube Does YouTube, which is a legendary video domain, need to be described in depth? As with the above cases, Alexandr has also chosen to flatten the direction of YouTube's transformation. This redesigned page retains the Google Color system, the left side of the personal Information Bar using the classic red a

(/PRODUCTDETAILS?PRODUCTID=XXX) that allows the mobile client to obtain all the product details through a single request. API gateways process requests by invoking individual services (product information, recommendations, comments, and so on) and merging results.The Netflix API Gateway is a good example of an API gateway. Netflix streaming services are available to hundreds of different types of devices,

-side discovery model. Netflix Eureka is a service registry that provides a rest API interface for service instance registration management and querying available instances. The Netflix Ribbon is an IPC client that works with the Eureka contract to achieve load balancing of requests. We will discuss Eureka in detail later.Client Discovery mode is also a distinct advantage. This mode is relatively straightfo

This is a creation in Article, where the information may have evolved or changed. Scott Mansfield (@sgmansfield) is a Senior software Engineer at Netflix. He works on Evcache, a high-performance, and low latency persistence system. The He is the primary author of Rend, an open-source memcached proxies as a part of Evcache. He talked at Gophercon on a custom data serialization format he developed at Netflix

Talking about the principle of Spring Cloud Ribbon, cloudribbon Ribbon is an open-source Project released by Netflix. It provides client-side software Load Balancing algorithms to connect Netflix's intermediate layer services. The Ribbon client component provides a series of complete configuration items, such as connection timeout and retry. Simply put, the configuration file lists all the machines after Load Balancer (LB). Ribbon will automatically h

When it comes to Springcloud's recent exposure to the five "divine Beasts", the first contact with distributed development is through Dubbo RPC remote Procedure calls, and Dubbo gives me the feeling that although all the hosts are physically distributed, it is as if the user is a whole. And what is the meaning of distributed development for our Java developers? That is to say where to use distributed development, in fact, in any project (MVC design mode), business operations are the most central

thatWorking with the Spring boot framework will make it very convenient for you to develop a cloud service for your microservices architecture.Springboot is designed to streamline the creation of product-level Spring applications and services, simplifies configuration files, uses embedded Web servers, and includes many out-of-the-box microservices capabilitiesRelated Component architecture diagramSpring Cloud is a spring boot-based cloud application development tool for configuration management

Routing Service-to-service Call Load Balancing Circuit Breaker Distributed Message Delivery Sub-projectSpring Cloud's sub-projects can be broadly divided into two categories: the encapsulation and abstraction of the existing mature framework "Spring boot", and the largest number of projects, and the second is the development of a subset of the distributed system infrastructure, such as the spring Cloud Stream plays the role of Kafka, Activemq. For developers who want to

between each other, but if the project is more than 20 30, at the end of 15, our distributed project reached more than 20, draw a picture to describe the relationship between the dozens of items are all lines, any one of the project changes, Will implicate several projects followed by reboots, big trouble and error prone. Service Center to get services you do not need to focus on the project IP address you call, consisting of several servers, each time directly to the service center to get the

between each other, but if the project is more than 20 30, at the end of 15, our distributed project reached more than 20, draw a picture to describe the relationship between the dozens of items are all lines, any one of the project changes, Will implicate several projects followed by reboots, big trouble and error prone. Service Center to get services you do not need to focus on the project IP address you call, consisting of several servers, each time directly to the service center to get the

Meet HystrixHystrix is a fault-tolerant framework for Netflix open source, which includes common methods of fault tolerance: thread isolation, semaphore isolation, downgrade strategies, and fuse technology.Under high concurrent access, the stability of the service dependent on the system has a great impact on the system, there are many factors that are not controllable, such as slow network connection, sudden and busy resource, temporary unavailabilit

Tags: include batch processing ROC str instead of shadow friends own NginxSpring Cloud is comprised of a number of sub-projects, such as Spring Cloud Config, Spring Cloud Netflix, Spring Cloud Consul, and more, providing tools commonly used to build distributed systems and microservices, such as configuration management, service discovery, Circuit breakers, intelligent routing, micro-proxies, control buses, one-time tokens, global locks, select Master