If you are getting the following error in hue,

Unauthorized connection for superuser: hue from IP “x.x.x.x”

Add the following property in the core-site.xml of your hadoop cluster and restart the cluster

<property>
<name>hadoop.proxyuser.hue.groups</name>
<value>*</value>
</property>

<property>
<name>hadoop.proxyuser.hue.hosts</name>
<value>*</value>
</property>

You may face similar error with oozie also. In that case add a similar conf for oozie user in the core-sire.xml

<property>
<name>hadoop.proxyuser.oozie.groups</name>
<value>*</value>
</property>

<property>
<name>hadoop.proxyuser.oozie.hosts</name>
<value>*</value>
</property>
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