Chapter 14. Uninstalling HDP

Use the following instructions to uninstall HDP:

Stop all the services using the instructions provided here.
If HBase and ZooKeeper are installed, execute the following commands on all the cluster nodes:
```
rm -f /usr/share/hbase/lib/zookeeper-$version.jar
rm -rf $ZOOKEEPER_PID_DIR/*.pid
rm -rf $HBASE_PID_DIR/*.pid
```
If HCatalog is installed, execute the following command on all the cluster nodes:
```
yum remove hcatalog\* 
```
If Hive is installed, execute the following command on all the cluster nodes:
```
yum remove hive\* 
```
If Tez is installed, execute the following command on all the cluster nodes:
```
yum remove tez
```
If HBase is installed, execute the following command on all the cluster nodes:
```
yum remove hbase\* 
```
If ZooKeeper is installed, execute the following command on all the cluster nodes:
```
yum remove zookeeper\* 
```
If Oozie is installed, execute the following command on all the cluster nodes:
```
yum remove oozie\* 
```
If Pig is installed, execute the following command on all the cluster nodes:
```
yum remove pig\* 
```
If compression libraries are installed, execute the following command on all the cluster nodes:
```
yum remove snappy\*
yum remove hadoop-lzo\*
```
Uninstall Hadoop. Execute the following command on all the cluster nodes:
```
yum remove hadoop\* 
```
Uninstall ExtJS libraries and MySQL connector. Execute the following command on all the cluster nodes:
```
yum remove extjs-2.2-1 mysql-connector-java-5.0.8-1\* 
```
Delete Hadoop directories.
```
rm -rf $HADOOP_HOME
```