This is the documentation for CDH 5.1.x. Documentation for other versions is available at Cloudera Documentation.

Uninstalling CDH Components

Before uninstalling CDH, stop all Hadoop processes, following the instructions in Stopping Services.

Here are the commands to use to uninstall the Hadoop components on different Linux systems.

Operating System	Commands	Comments
Red-Hat-compatible	`yum remove`
Debian and Ubuntu	`apt-get remove or apt-get purge`	`apt-get` can be run with the `remove` option to remove only the installed packages or with the `purge` option to remove packages and configuration
SLES	`zypper remove`

Uninstalling from Red Hat, CentOS, and Similar Systems

Component to remove	Command
Mahout	`$ sudo yum remove mahout`
Whirr	`$ sudo yum remove whirr`
Hue	`$ sudo yum remove hue`
Pig	`$ sudo yum remove pig`
Sqoop 1	`$ sudo yum remove sqoop`
Sqoop 2	`$ sudo yum remove sqoop2-server sqoop2-client`
Flume	`$ sudo yum remove flume`
Oozie client	`$ sudo yum remove oozie-client`
Oozie server	`$ sudo yum remove oozie`
Hive	`$ sudo yum remove hive hive-metastore hive-server hive-server2`
HBase	`$ sudo yum remove hadoop-hbase`
ZooKeeper server	`$ sudo yum remove hadoop-zookeeper-server`
ZooKeeper client	`$ sudo yum remove hadoop-zookeeper`
ZooKeeper Failover Controller (ZKFC)	`$ sudo yum remove hadoop-hdfs-zkfc`
HDFS HA Journal Node	`$ sudo yum remove hadoop-hdfs-hadoop-hdfs-journalnode`
Hadoop repository packages	`$ sudo yum remove cloudera-cdh<n>`
HttpFS	`$ sudo yum remove hadoop-httpfs`
Hadoop core packages	`$ sudo yum remove hadoop`

Uninstalling from Debian and Ubuntu

Use the apt-get command to uninstall software on Debian and Ubuntu systems. You can use apt-get remove or apt-get purge; the difference is that apt-get remove removes all your configuration data as well as the package files.

Warning:

For this reason, you should apt-get remove only with great care, and after making sure you have backed up all your configuration data.

The apt-get remove commands to uninstall the Hadoop components from a Debian or Ubuntu system are:

Component to remove	Command
Whirr	`$ sudo apt-get remove whirr`
Hue	`$ sudo apt-get remove hue`
Pig	`$ sudo apt-get remove pig`
Sqoop 1	`$ sudo apt-get remove sqoop`
Sqoop 2	`$ sudo apt-get remove sqoop2-server sqoop2-client`
Flume	`$ sudo apt-get remove flume`
Oozie client	`$ sudo apt-get remove oozie-client`
Oozie server	`$ sudo apt-get remove oozie`
Hive	`$ sudo apt-get remove hive hive-metastore hive-server hive-server2`
HBase	`$ sudo apt-get remove hadoop-hbase`
ZooKeeper server	`$ sudo apt-get remove hadoop-zookeeper-server`
ZooKeeper client	`$ sudo apt-get remove hadoop-zookeeper`
ZooKeeper Failover Controller (ZKFC)	`$ sudo apt-get remove hadoop-hdfs-zkfc`
HDFS HA Journal Node	`$ apt-get remove hadoop-hdfs-hadoop-hdfs-journalnode`
HttpFS	`$ sudo apt-get remove hadoop-httpfs`
Hadoop repository packages	`$ sudo apt-get remove cdh<n>-repository`
Hadoop core packages	`$ sudo apt-get remove hadoop`

Uninstalling from SLES

Component removed	Command
Whirr	`$ sudo zypper remove whirr`
Hue	`$ sudo zypper remove hue`
Pig	`$ sudo zypper remove pig`
Sqoop	`$ sudo zypper remove sqoop`
Sqoop	`$ sudo zypper remove sqoop2-server sqoop2-client`
Flume	`$ sudo zypper remove flume`
Oozie server	`$ sudo zypper remove oozie`
Oozie client	`$ sudo zypper remove oozie-client`
Hive	`$ sudo zypper remove hive hive-metastore hive-server hive-server2`
HBase	`$ sudo zypper remove hadoop-hbase`
ZooKeeper server	`$ sudo zypper remove hadoop-zookeeper-server`
ZooKeeper client	`$ sudo zypper remove hadoop-zookeeper`
ZooKeeper Failover Controller (ZKFC)	`$ sudo zypper remove hadoop-hdfs-zkfc`
HDFS HA Journal Node	`$ sudo zypper remove hadoop-hdfs-hadoop-hdfs-journalnode`
HttpFS	`$ sudo zypper remove hadoop-httpfs`
Hadoop repository packages	`$ sudo zypper remove cloudera-cdh`
Hadoop core packages	`$ sudo zypper remove hadoop`

Additional clean-up

The uninstall commands may not remove all traces of Hadoop from your system. The apt-get purge commands available for Debian and Ubuntu systems delete more files than the commands that use the remove option but are still not comprehensive. If you want to remove all vestiges of Hadoop from your system, look for the following and remove them manually:

log files
modified system configuration files
Hadoop configuration files in directories under /etc such as hadoop, hbase, hue, hive, oozie, sqoop, zookeeper, and zookeeper.dist
user/group identifiers
Oozie and Hue databases
Documentation packages

Page generated September 3, 2015.