1、配置mapred-site.xml
[root@node01 hadoop]# mv mapred-site.xml.template mapred-site.xml [root@node01 hadoop]# vi mapred-site.xml <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property>
2、配置yarn-site.xml
[root@node01 hadoop]# vi yarn-site.xml <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>node03</value> </property> <property> <name>yarn.resourcemanager.hostname.rm2</name> <value>node04</value> </property> <property> <name>yarn.resourcemanager.zk-address</name> <value>node02:2181,node03:2181,node04:2181</value> </property>
3、将上述两个文件分发到其他Hadoop节点
[root@node01 hadoop]# scp mapred-site.xml yarn-site.xml node02:`pwd`
4、让两个ResourceManager之间互相免密钥
[root@node03 .ssh]# ssh-keygen -t dsa -P '' -f ./id_dsa [root@node03 .ssh]# cat id_dsa.pub >> authorized_keys [root@node03 .ssh]# scp id_dsa.pub node04:`pwd`/node03.pub [root@node04 .ssh]# cat node03.pub >> authorized_keys
另一个节点执行相同步骤
5、启动
启动顺序：
①zookeeper，zkServer.sh start
②hdfs （注意，有一个脚本不要用，start-all）start-dfs.sh
如果nn 和 nn2没有启动，需要在node01，node02分别手动启动：
hadoop-daemon.sh start namenode
③start-yarn.sh (启动nodemanager)
④在03,04节点分别执行脚本： yarn-daemon.sh start resourcemanager
6、启动后各节点角色进程
[root@node01 ~]# jps 3136 Jps 2612 NameNode 2955 DFSZKFailoverController 2798 JournalNode [root@node02 ~]# jps 2306 DFSZKFailoverController 2388 NodeManager 2056 NameNode 2120 DataNode 2202 JournalNode 2524 Jps 1388 QuorumPeerMain [root@node03 ~]# jps 1875 DataNode 1957 JournalNode 1414 QuorumPeerMain 2409 Jps 2185 ResourceManager 2044 NodeManager [root@node04 ~]# jps 1890 NodeManager 1794 DataNode 2085 Jps 1415 QuorumPeerMain 2031 ResourceManager
7、http访问端口：8088
8、停止：
node01: stop-dfs.sh
node01: stop-yarn.sh (停止nodemanager)
node03,node04: yarn-daemon.sh stop resourcemanager （停止resourcemanager）
ZooKeeper：zkServer.sh stop