cat /etc/hadoop/conf.juju/yarn-site.xml
<?xml version="1.0"?>
<configuration>
  <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>
  <property>
    <name>yarn.resourcemanager.resource-tracker.address</name>
    <value>10.1.8.72:8031</value>
  </property>
  <property>
    <name>yarn.resourcemanager.scheduler.address</name>
    <value>10.1.8.72:8030</value>
  </property>
  <property>
    <name>yarn.resourcemanager.address</name>
    <value>10.1.8.72:8032</value>
  </property>
  <property>
    <name>yarn.nodemanager.address</name>
    <value>10.1.8.72:8050</value>
  </property>
  <property>
    <name>yarn.nodemanager.localizer.address</name>
    <value>10.1.8.72:8045</value>
  </property>
</configuration>