@hari Kishore javvaji Dr.who is the default username/static for hadoop core property : "hadoop.htttp.staticuser.user" The description say's : The user name to filter as, on static web filters while rendering content. An example use is the HDFS web UI (user to be used for browsing files) See this: [1] http://hadoop.apache.org/docs/r2.8.0/hadoop-project-dist/hadoop-common/core-default.xml Hope this answered your question. ... View more