This is the documentation for Cloudera Enterprise 5.8.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
Flume $ sudo yum remove flume
Hadoop core packages $ sudo yum remove hadoop
Hadoop repository packages $ sudo yum remove cloudera-cdhn
HBase $ sudo yum remove hadoop-hbase
HDFS HA Journal Node $ sudo yum remove hadoop-hdfs-hadoop-hdfs-journalnode
Hive $ sudo yum remove hive hive-metastore hive-server hive-server2
HttpFS $ sudo yum remove hadoop-httpfs
Hue $ sudo yum remove hue
Mahout $ sudo yum remove mahout
Pig $ sudo yum remove pig
Search $ sudo yum remove solr hbase-solr search solr-mapreduce solr-doc search-crunch
Sentry

$ sudo yum remove sentry
Spark $ sudo yum remove spark-core spark-master spark-worker spark-history-server spark-python
Sqoop 1 $ sudo yum remove sqoop
Sqoop 2 $ sudo yum remove sqoop2-server sqoop2-client
Oozie client $ sudo yum remove oozie-client
Oozie server $ sudo yum remove oozie
Whirr $ sudo yum remove whirr
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

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
Flume $ sudo apt-get remove flume
Hadoop core packages $ sudo apt-get remove hadoop
Hadoop repository packages $ sudo apt-get remove cdhn-repository
HBase $ sudo apt-get remove hadoop-hbase
HDFS HA Journal Node $ apt-get remove hadoop-hdfs-hadoop-hdfs-journalnode
Hive $ sudo apt-get remove hive hive-metastore hive-server hive-server2
HttpFS $ sudo apt-get remove hadoop-httpfs
Hue $ sudo apt-get remove hue
Oozie client $ sudo apt-get remove oozie-client
Oozie server $ sudo apt-get remove oozie
Pig $ sudo apt-get remove pig
Search $ sudo apt-get remove solr hbase-solr search solr-mapreduce solr-doc search-crunch

Sentry

$ sudo apt-get remove sentry
Spark $ sudo apt-get remove spark-core spark-master spark-worker spark-history-server spark-python
Sqoop 1 $ sudo apt-get remove sqoop
Sqoop 2 $ sudo apt-get remove sqoop2-server sqoop2-client
Whirr $ sudo apt-get remove whirr
ZooKeeper client $ sudo apt-get remove hadoop-zookeeper
ZooKeeper Failover Controller (ZKFC) $ sudo apt-get remove hadoop-hdfs-zkfc
ZooKeeper server $ sudo apt-get remove hadoop-zookeeper-server

Uninstalling from SLES

Component to Remove Command
Flume $ sudo zypper remove flume
Hadoop core packages $ sudo zypper remove hadoop
Hadoop repository packages $ sudo zypper remove cloudera-cdh
HBase $ sudo zypper remove hadoop-hbase
HDFS HA Journal Node $ sudo zypper remove hadoop-hdfs-hadoop-hdfs-journalnode
Hive $ sudo zypper remove hive hive-metastore hive-server hive-server2
HttpFS $ sudo zypper remove hadoop-httpfs
Hue $ sudo zypper remove hue
Oozie client $ sudo zypper remove oozie-client
Oozie server $ sudo zypper remove oozie
Pig $ sudo zypper remove pig
Search $ sudo zypper remove solr hbase-solr search solr-mapreduce solr-doc search-crunch

Sentry

$ sudo zypper remove sentry
Spark $ sudo zypper remove spark-core spark-master spark-worker spark-history-server spark-python
Sqoop 1 $ sudo zypper remove sqoop
Sqoop 2 $ sudo zypper remove sqoop2-server sqoop2-client
Whirr $ sudo zypper remove whirr
ZooKeeper client $ sudo zypper remove hadoop-zookeeper
ZooKeeper Failover Controller (ZKFC) $ sudo zypper remove hadoop-hdfs-zkfc
ZooKeeper server $ sudo zypper remove hadoop-zookeeper-server

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
  • Hue, Oozie, and Sqoop databases
  • Documentation packages
Page generated July 8, 2016.