笔记一：hadoop之YARN 环境搭建

基于之前的HDFS HA基础搭建YARN环境

1、环境搭建

	NN-1	NN-2	DN	ZK	ZKFC	JNN	RS	NM
hadoop01	*				*	*	*
hadoop02		*	*	*	*	*	*	*
hadoop03			*	*		*		*
hadoop04			*	*				*

 

2、配置文件
mapred-site.xml

<configuration>
    <property>
        <name>mapreduce.framework.name</name>
        <value>yarn</value>
    </property>
</configuration>

　　
yarn-site.xml 

<configuration>
    <property>
        <name>yarn.nodemanager.aux-services</name>
        <value>mapreduce_shuffle</value>
    </property>
 <property>
   <name>yarn.resourcemanager.ha.enabled</name>
   <value>true</value>
 </property>
 <property>
   <name>yarn.resourcemanager.cluster-id</name>
   <value>cluster1</value>
 </property>
 <property>
   <name>yarn.resourcemanager.ha.rm-ids</name>
   <value>rm1,rm2</value>
 </property>
 <property>
   <name>yarn.resourcemanager.hostname.rm1</name>
   <value>hadoop01</value>
 </property>
 <property>
   <name>yarn.resourcemanager.hostname.rm2</name>
   <value>hadoop02</value>
 </property>
 <property>
   <name>yarn.resourcemanager.zk-address</name>
   <value>hadoop02:2181,hadoop03:2181,hadoop03:2181</value>
 </property>
</configuration>

3、拷贝文件到其他服务器

scp mapred-site.xml yarn-site.xml root@hadoop02:`pwd`
scp mapred-site.xml yarn-site.xml root@hadoop03:`pwd`
scp mapred-site.xml yarn-site.xml root@hadoop04:`pwd`

4、启动zk集群

./zkServer.sh start
./zkServer.sh status

5、启动hdfs集群

./start-dfs.sh

6、启动YARN资源

./start-yarn.sh 
#在另一个RM节点上启动
./yarn-daemon.sh start resourcemanager

./yarn-daemon.sh stop resourcemanager

7、页面查看应用

http://hadoop01:50070
http://hadoop01:8088