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# Hadoop-YARN
<nav>
<nav>
<a href="#一hadoop-yarn-简介">一、hadoop yarn 简介</a><br/>
<a href="#二YARN架构">二、YARN架构</a><br/>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="#1-ResourceManager"> 1. ResourceManager</a><br/>
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**Apache YARN** (Yet Another Resource Negotiator) 在 hadoop 2 中被引入，作为hadoop集群资源管理系统。用户可以将各种各样的计算框架部署在YARN上，由YARN进行统一管理和资源的分配。
<div width="600px" align="center"> <img src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/yarn-base.png"/> </div>
<div align="center"> <img width="600px" src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/yarn-base.png"/> </div>
## 二、YARN架构
<div width="600px" align="center"> <img src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/Figure3Architecture-of-YARN.png"/> </div>
<div align="center"> <img width="600px" src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/Figure3Architecture-of-YARN.png"/> </div>
#### 1. ResourceManager
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## 三、YARN工作原理简述
<div width="600px" align="center"> <img src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/yarn工作原理简图.png"/> </div>
<div align="center"> <img src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/yarn工作原理简图.png"/> </div>
1. Client提交作业到YARN上；
@ -60,7 +61,7 @@ NodeManager管理YARN集群中的每个节点。NodeManager 提供针对集群
## 四、YARN工作原理详述
<div width="600px" align="center"> <img src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/yarn工作原理.png"/> </div>
<div align="center"> <img width="600px" src="https://github.com/heibaiying/BigData-Notes/blob/master/pictures/yarn工作原理.png"/> </div>