Chapter 26. Uninstalling HDP

Use the following instructions to uninstall HDP:

Stop all the installed HDP services.
If HCatalog is installed, execute the following command on all the cluster nodes:
- For RHEL/CentOS/Oracle Linux:
```
yum remove hcatalog\* 
```
- SLES:
```
zypper remove hcatalog\* 
```
If Hive is installed, execute the following command on all the cluster nodes:
- For RHEL/CentOS/Oracle Linux:
```
yum remove hive\*
```
- SLES:
```
zypper remove hive\* 
```
If HBase is installed, execute the following command on all the cluster nodes:
- For RHEL/CentOS/Oracle Linux:
```
yum remove hbase\* 
```
- SLES:
```
zypper remove hbase\* 
```
If ZooKeeper is installed, execute the following command on all the cluster nodes:
- For RHEL/CentOS/Oracle Linux:
```
yum remove zookeeper\*
```
- SLES:
```
zypper remove zookeeper\* 
```
If Oozie is installed, execute the following command on all the cluster nodes:
- For RHEL/CentOS/Oracle Linux:
```
yum remove oozie\*
```
- SLES:
```
zypper remove oozie\* 
```
If Pig is installed, execute the following command on all the cluster nodes:
- For RHEL/CentOS/Oracle Linux:
```
yum remove pig\* 
```
- SLES:
```
zypper remove pig\* 
```
If compression libraries are installed, execute the following command on all the cluster nodes:
```
yum remove snappy\* 
yum remove hadoop-lzo\* 
```
If Knox is installed, execute the following command on all the gateway host:
- For RHEL/CentOS/Oracle Linux:
```
yum remove knox\* 
```
- SLES:
```
zypper remove knox\* 
```
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\* 
```

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