https://community.cloudera.com/t5/Support-Questions/Username-and-Password-for-Resource-Manager-WebUI/m-p/218472#M180373 <P><EM><A href="@ASIF Khan">@ASIF Khan</A><BR /></EM></P><P><EM>If the cluster is managed by Ambari, this should be added in <STRONG>Ambari</STRONG> &gt; <STRONG>HDFS</STRONG> &gt; <STRONG>Configurations</STRONG>&gt;<STRONG>Advanced</STRONG> <STRONG>core-site &gt; Add Property</STRONG></EM></P><PRE><EM>hadoop.http.staticuser.user=yarn</EM></PRE><P><EM>Please let me know if that worked </EM></P> Mon, 16 Apr 2018 19:42:00 GMT Shelton 2018-04-16T19:42:00Z