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Change service discovery example to use consul/etcd

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Alexander Brandstedt 2017-03-24 12:30:09 +01:00 committed by Donne Martin
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@ -729,7 +729,10 @@ Pinterest, for example, could have the following microservices: user profile, fo
### Service Discovery
Systems such as [Zookeeper](http://www.slideshare.net/sauravhaloi/introduction-to-apache-zookeeper) can help services find each other by keeping track of registered names, addresses, ports, etc.
Systems such as [Consul](https://www.consul.io/docs/index.html) and [Etcd](https://coreos.com/etcd/docs/latest) are among the newer commonly used pull based service discovery solutions today. They solve service registration/de registration of what name, address and port the service is available at. Health checks are often done using a http endpoint. Both Consul and Etcd also have a built in key/value store that can be useful for storing config values or other shared key/values for running a service
Systems such as [Zookeeper](http://www.slideshare.net/sauravhaloi/introduction-to-apache-zookeeper) is a possible older system that can be used as a service discovery service. Zookeeper has commonly been used for master election since it isn't a AP
### Disadvantage(s): application layer