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Spring cloud is a set of tools that can be used by developers to quickly build some common patterns in distributed systems such as service discovery, configuration management, intelligent routing, etc.
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Load balancing is a technique used to improve the distribution of workloads across several computing resources, such as a computer cluster, CPUs, network lines, and disk drives.
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At the starting of a project, we usually have the entire configurations in the "properties" file. As the project proceeds and more services are developed and deployed, adding them to the properties file becomes complex.
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Hystrix is a fault-tolerance and latency library designed for isolating points of access to remote systems, third-party libraries, services, stopping cascading failures, and enabling resilience in complex distributed systems where failure is common and cannot be avoided.
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It is a Java to HTTP client binder. It is inspired by JAXRS-2.0, WebSocket, and Retrofit.
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Spring cloud is a microservice management and coordination framework used to integrate and manage individual microservices while Spring boot is used to develop these microservices.
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Consul is one of the products of HashiCorp. Spring consul provides an easy way by which one can register instances as consul agent and that instances can be further discovered by clients using spring beans. There are sveral features provided by consul. Some of them includes configuration management with the use of Key/Value store , health checking etc. are provided by the consul.
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Spring Cloud Function is a project with the following high-level goals: Promote the implementation of business logic via functions. Decouple the development lifecycle of business logic from any specific runtime target so that the same code can run as a web endpoint, a stream processor, or a task.
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Spring Cloud Config is Spring's client/server approach for storing and serving distributed configurations across multiple applications and environments. This configuration store is ideally versioned under Git version control and can be modified at application runtime.
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The Rapid Application Development model is based on prototyping and iterative model with less specific planning. In general, RAD approach to software development means putting lesser emphasis on planning tasks and more emphasis on development and coming up with a prototype.
RAD should be used only when a system can be modularized to be delivered in an incremental manner. It should be used only if the budget permits use of automated code generating tools.
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Spring Cloud is a framework for building robust cloud applications and it provides a solution to the commonly encountered patterns when developing a distributed system. Spring Cloud framework provides tools for developers to quickly build both cloud applications and microservice-based applications.
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The fuse mechanism is a microservice link protection mechanism that responds to the avalanche effect. When a microservice is unavailable or the response time is too long, the service will be downgraded, and then the call of the microservice of the node will be fused, and the error response information will be quickly returned.
Service degradation is generally considered from the overall load. That is, when a service is broken, the server will no longer be called, at this time the client can prepare a local fallback callback and return a default value. In doing so, although the level drops, it is still available anyway, which is better than just hanging it out.
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Spring Cloud Bus links the nodes of a distributed system with a lightweight message broker.A key idea is that the bus is like a distributed actuator for a Spring Boot application that is scaled out.It can also be used as a communication channel between apps.
Spring Cloud is a framework for building robust cloud applications.Applications that run with microservices architecture aim to simplify development, deployment, and maintenance. The decomposed nature of the application allows developers to focus on one problem at a time.