<property>
<name>dfs.ha.fencing.methods</name>
<value>sshfence
shell(/bin/true)</value>
</property>
<property>
<name>dfs.ha.fencing.ssh.private-key-files</name>
<value>/home/hadoop/.ssh/id_rsa</value>
</property>
<property>
<name>dfs.ha.fencing.ssh.connect-timeout</name>
<value>30000</value>
</property>
</configuration>
(6)配置 mapred-site.xml 文件
-->>增加mapreduce配置（使用yarn框架、jobhistory使用地址以及web地址）
[root@masternode hadoop]# mv mapred-site.xml.template mapred-site.xml
vi mapred-site.xml
<configuration>
<!-- 配置MapReduce运行于yarn中 -->
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
<property>
<name>mapreduce.job.maps</name>
<value>12</value>
</property>
<property>
<name>mapreduce.job.reduces</name>
<value>12</value>
</property>
</configuration>
(7)配置yarn-site.xml 文件-->>增加yarn功能
<configuration>
<property>
<name>yarn.log-aggregation-enable</name>
<value>true</value>
</property>
<property>
<name>yarn.log-aggregation.retain-seconds</name>
<value>259200</value>
</property>
<property>
<name>yarn.resourcemanager.zk-address</name>
<value>slavenode1:2181,slavenode3:2181,slavenode2:2181</value>
</property>
<property>
<name>yarn.resourcemanager.cluster-id</name>
<value>cluster-yarn</value>
</property>
<property>
<name>yarn.resourcemanager.ha.enabled</name>
<value>true</value>
</property>
<property>
<name>yarn.resourcemanager.ha.rm-ids</name>
<value>rm1,rm2</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm1</name>
<value>slavenode1</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm2</name>
<value>masternode</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address.rm1</name>
<value>slavenode1:8030</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address.rm2</name>
<value>masternode:8030</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address.rm1</name>
<value>slavenode1:8031</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address.rm2</name>
<value>masternode:8031</value>
</property>
<property>
<name>yarn.resourcemanager.address.rm1</name>
<value>slavenode1:8032</value>
</property>
<property>
<name>yarn.resourcemanager.address.rm2</name>
<value>masternode:8032</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address.rm1</name>
<value>slavenode:8033</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address.rm2</name>
<value>masternode:8033</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm1</name>
<value>slavenode1:8088</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>masternode:8088</value>
</property>
<property>
<name>yarn.resourcemanager.ha.automatic-failover.enabled</name>
<value>true</value>
</property>
<property>
<name>yarn.resourcemanager.ha.automatic-failover.embedded</name>
<value>true</value>
</property>
<property>
<name>yarn.resourcemanager.ha.automatic-failover.zk-base-path</name>
<value>/yarn-leader-election</value>
</property>
<property>
<name>yarn.resourcemanager.recovery.enabled</name>
<value>true</value>
</property>
<property>
<name>yarn.resourcemanager.store.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
</configuration>
[root@slavenode1 hadoop-2.7.2]# vi etc/hadoop/log4j.properties
log4j.logger.org.apache.hadoop.util.NativeCodeLoader=ERROR
为了解决启动进程会出现报错
现在在Master机器上的Hadoop配置就结束了，剩下的就是配置Slave机器上的Hadoop。