[hadoop@hadoop01 hadoop]$ vi yarn-site.xml

    
<?xml version="1.0"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->

<configuration>
<!-- Site specific YARN configuration properties -->
<!--add start 20160627 -->
  <property>
      <description>The address of the applications manager interface in the RM.</description>
      <name>yarn.resourcemanager.address</name>
      <value>hadoop01:8032</value>
  </property>
  <property>
      <description>The address of the scheduler interface.</description>
      <name>yarn.resourcemanager.scheduler.address</name>
      <value>hadoop01:8030</value>
  </property>
  <property>
      <name>yarn.resourcemanager.resource-tracker.address</name>
      <value>hadoop01:8031</value>
  </property>
  <property>
      <description>The address of the RM admin interface.</description>
      <name>yarn.resourcemanager.admin.address</name>
      <value>hadoop01:8033</value>
  </property>
  <property>
      <description>The http address of the RM web application.</description>
      <name>yarn.resourcemanager.webapp.address</name>
      <value>hadoop01:8088</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>
  <!-- add end 20160627 -->

  <!-- add start 20161012 -->
  <property>
     <name>yarn.resourcemanager.ha.enabled</name>
     <value>true</value>
  </property>
  <property>
     <name>yarn.resourcemanager.cluster-id</name>
     <value>rmCluster</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.webapp.address.rm1</name>
     <value>hadoop01:8088</value>
  </property>
  <property>
     <name>yarn.resourcemanager.webapp.address.rm2</name>
     <value>hadoop02:8088</value>
  </property>
  <property>
     <name>yarn.resourcemanager.zk-address</name>
     <value>hadoop01:2181,hadoop02:2181,hadoop03:2181</value>
  </property>
  <!-- add end 20161012 -->

</configuration>

[hadoop@hadoop01 hadoop]$ start-all.sh

This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
16/07/04 12:17:09 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [hadoop01 hadoop02]
hadoop02: starting namenode, logging to /.../hadoop-hadoop-namenode-hadoop02.out
hadoop01: starting namenode, logging to /.../hadoop-hadoop-namenode-hadoop01.out
hadoop02: starting datanode, logging to /.../hadoop-hadoop-datanode-hadoop02.out
hadoop01: starting datanode, logging to /.../hadoop-hadoop-datanode-hadoop01.out
hadoop03: starting datanode, logging to /.../hadoop-hadoop-datanode-hadoop03.out
Starting journal nodes [hadoop01 hadoop02 hadoop03]
hadoop02: starting journalnode, logging to /.../hadoop-hadoop-journalnode-hadoop02.out
hadoop01: starting journalnode, logging to /.../hadoop-hadoop-journalnode-hadoop01.out
hadoop03: starting journalnode, logging to /.../hadoop-hadoop-journalnode-hadoop03.out
Starting ZK Failover Controllers on NN hosts [hadoop01 hadoop02]
hadoop02: starting zkfc, logging to /.../hadoop-hadoop-zkfc-hadoop02.out
hadoop01: starting zkfc, logging to /.../hadoop-hadoop-zkfc-hadoop01.out
starting yarn daemons
starting resourcemanager, logging to /.../yarn-hadoop-resourcemanager-hadoop01.out
hadoop01: starting nodemanager, logging to /.../yarn-hadoop-nodemanager-hadoop01.out
hadoop02: starting nodemanager, logging to /.../yarn-hadoop-nodemanager-hadoop02.out
hadoop03: starting nodemanager, logging to /.../yarn-hadoop-nodemanager-hadoop03.out

[hadoop@hadoop02 ~]$ yarn rmadmin -getServiceState rm1
active
[hadoop@hadoop02 ~]$ yarn rmadmin -getServiceState rm2
standby