1.停止YARN集群
stop-yarn.sh
2.修改配置文件
yarn-site.xml
<!-- //以下为YARN HA的配置// -->
<!-- 开启YARN HA -->
<property>
<name>yarn.resourcemanager.ha.enabled</name>
<value>true</value>
</property>
<!-- 启用自动故障转移 -->
<property>
<name>yarn.resourcemanager.ha.automatic-failover.enabled</name>
<value>true</value>
</property>
<!-- 指定YARN HA的名称 -->
<property>
<name>yarn.resourcemanager.cluster-id</name>
<value>yarncluster</value>
</property>
<!-- 指定两个resourcemanager的名称 -->
<property>
<name>yarn.resourcemanager.ha.rm-ids</name>
<value>rm1,rm2</value>
</property>
<!-- 配置rm1，rm2的主机 -->
<property>
<name>yarn.resourcemanager.hostname.rm1</name>
<value>master</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm2</name>
<value>node1</value>
</property>
<!-- 配置YARN的http端口 -->
<property>
<name>yarn.resourcemanager.webapp.address.rm1</name>
<value>master:8088</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address.rm2</name>
<value>node1:8088</value>
</property>
<!-- 配置zookeeper的地址 -->
<property>
<name>yarn.resourcemanager.zk-address</name>
<value>master:2181,node1:2181,node2:2181</value>
</property>
<!-- 配置zookeeper的存储位置 -->
<property>
<name>yarn.resourcemanager.zk-state-store.parent-path</name>
<value>/rmstore</value>
</property>
<!-- 开启yarn resourcemanager restart -->
<property>
<name>yarn.resourcemanager.recovery.enabled</name>
<value>true</value>
</property>
<!-- 配置resourcemanager的状态存储到zookeeper中 -->
<property>
<name>yarn.resourcemanager.store.class</name>
<value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value>
</property>
<!-- 开启yarn nodemanager restart -->
<property>
<name>yarn.nodemanager.recovery.enabled</name>
<value>true</value>
</property>
<!-- 配置nodemanager IPC的通信端口 -->
<property>
<name>yarn.nodemanager.address</name>
<value>0.0.0.0:45454</value>
</property>
3.同步到其它节点
cd /usr/local/soft/hadoop-2.7.6/etc/hadoop
scp ./* node1:`pwd`
scp ./* node2:`pwd`
4.启动yarn(在master上启动)
start-yarn.sh
5.在node1上启动另一个RM
/usr/local/soft/hadoop-2.7.6/sbin/yarn-daemon.sh start resourcemanager
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