Hello Jalonso,   Following are steps that we usually use to uninstall. This may be little different for you depending on the ecosystem that you are using. - Stop all services. You can do that manually or use the following:  $ for s in `cd /etc/init.d ; ls hadoop-*` ; do sudo service $s stop ; done - If you choose to stop services manually then follow following order Hue, Sqoop, Flume, Oozie, Hive, HBase, MapRed, Yarn, HttpFS, HDFS and lastly Zookeeper. - Then you can use following command to remove your environment specific components:  sudo yum remove hue  sudo yum remove pig  sudo yum remove sqoop  sudo yum remove flume  sudo apt-get purge hive hive-metastore hive-server hive-server2  sudo apt-get purge hadoop-hbase  sudo apt-get purge hadoop-zookeeper-server  sudo apt-get purge hadoop-zookeeper  sudo apt-get purge hadoop-hdfs-zkfc  apt-get purge hadoop-hdfs-hadoop-hdfs-journalnode  sudo apt-get purge hadoop-httpfs  sudo apt-get purge hadoop-0.20 - Post above steps you will have to clean up log files, config files, hue databases manually.   Hope that helps. ... View more