July Tech Festa 2014 slides #techfesta #consul
![About Consul](https://cdn-ak-scissors.b.st-hatena.com/image/square/053a001e59abbc654fd8e8af553ba5320c6b1186/height=288;version=1;width=512/https%3A%2F%2Ffiles.speakerdeck.com%2Fpresentations%2Fe07317d0dc040131a0982229a5c1e016%2Fslide_0.jpg%3F3193429)
Consul provides a session mechanism which can be used to build distributed locks. Sessions act as a binding layer between nodes, health checks, and key/value data. They are designed to provide granular locking and are heavily inspired by The Chubby Lock Service for Loosely-Coupled Distributed Systems. Session DesignA session in Consul represents a contract that has very specific semantics. When a
Twitter を眺めていると、Consul の名前解決に Dnsmasq を使う方法が紹介され、興味を。 Consul, DNS and Dnsmasq – Morethanseven http://www.morethanseven.net/2014/04/25/consul/ 対象記事は、Ubuntu 向けでしたので、ここは自分で、RHEL/CentOS6 の環境でも同様に動作するかどうか、確認してみました。 ■ 作業の目的 Consul には DNS インターフェースが標準で提供されています。そのため、dig で Consul サーバのポート 8600 に対して名前解決を問い合わせると、指定したノード名やサービス名に該当する IP アドレスを返すことができます。 例えば、Consul サーバの IP アドレス’192.168.39.5′ に対し、’web’ という名前のサービスを問
Consul uses a consensus protocol to provide Consistency (as defined by CAP). The consensus protocol is based on "Raft: In search of an Understandable Consensus Algorithm". For a visual explanation of Raft, see The Secret Lives of Data. Raft Protocol OverviewRaft is a consensus algorithm that is based on Paxos. Compared to Paxos, Raft is designed to have fewer states and a simpler, more understanda
Consul DocumentationConsul is a multi-networking tool that offers a fully-featured service mesh solution. It solves the networking and security challenges of operating microservices and cloud infrastructure in multi-cloud and hybrid cloud environments. This documentation describes Consul concepts, the problems it solves, and contains quick-start tutorials for using Consul.
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