Eureka is a REST (Representational State Transfer) based service that is primarily used in the AWS cloud for locating services for the purpose of load balancing and failover of middle-tier servers.
At Netflix, Eureka is used for the following purposes apart from playing a critical part in mid-tier load balancing.
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For aiding Netflix Asgard - an open source service which makes cloud deployments easier, in
- Fast rollback of versions in case of problems avoiding the re-launch of 100's of instances which could take a long time.
- In rolling pushes, for avoiding propagation of a new version to all instances in case of problems.
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For our cassandra deployments to take instances out of traffic for maintenance.
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For our memcached caching services to identify the list of nodes in the ring.
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For carrying other additional application specific metadata about services for various other reasons.
The build requires java8 because of some required libraries that are java8 (servo), but the source and target compatibility are still set to 1.7.
Please see wiki for detailed documentation.
进入刚才clone的文件目录下，然后增加源分支地址到你项目远程分支列表中，命令是
git remote add Netflix https://github.com/Netflix/eureka.git
fetch源分支到本地，命令是：
git fetch Netflix
合并两个版本的代码
git merge Netflix/master
最后一步，把合并后的代码push到你的Github项目上去，这步需要你输入你的账户名和密码
git push origin master
1. com.netflix.eureka.cluster - 与peer节点复制(replication)相关的功能
2. com.netflix.eureka.lease - 即”租约”, 用来控制注册信息的生命周期(添加、清除、续约)
3. com.netflix.eureka.registry - 存储、查询服务注册信息
4. com.netflix.eureka.resources - RESTful风格中的”R”, 即资源。相当于SpringMVC中的Controller
5. com.netflix.eureka.transport - 发送HTTP请求的客户端，如发送心跳
6. com.netflix.eureka.aws - 与amazon AWS服务相关的类
Eureka客户端，微服务通过该客户端与Eureka进行通讯，屏蔽了通讯细节
包含了 servlet 应用的基本配置，如 web.xml。构建成功后在该模块下会生成可部署的war包。