Registering the HDP 2.4.2 Repo

After you have prepared your cluster for the upgrade, you need to register the HDP 2.4.2 repo. This requires you to perform the following steps:

Update the install.properties file to migrate the database credentials properties and POLICYMGR_EXTERNAL-URL property from HDP 2.3. to HDP 2.4.2.
Change ownership of /etc/ranger/admin/conf/ and /etc/ranger/usersync/conf/ to ranger:ranger:
```
chown -R ranger:ranger /etc/ranger/admin/conf/
```

Install the Ranger Admin component. Be sure to set the JAVA_HOME environment variable if it is not already set.

cd /usr/hdp/current/ranger-admin/

cp  ews/webapp/WEB-INF/classes/conf.dist/ranger-admin-site.xml
         ews/webapp/WEB-INF/classes/conf/

cp  ews/webapp/WEB-INF/classes/conf.dist/ranger-admin-default-site.xml
        ews/webapp/WEB-INF/classes/conf/

cp  ews/webapp/WEB-INF/classes/conf.dist/security-applicationContext.xml
        ews/webapp/WEB-INF/classes/conf/

./setup.sh

This should successfully install the Ranger Admin component.
Start the Ranger Admin component.
```
service ranger-admin start
```
You must now configure and setup the Ranger UserSync component by migrating the properties from the HDP 2.3 install.properties file (POLICY_MGR_URL, SYNC_SOURCE and LDAP/AD properties.
Install the Ranger UserSync component. Be sure to set the JAVA_HOME component if it is not already set.
```
cd /usr/hdp/current/ranger-usersync/

./setup.sh
```
Start the Ranger UserSync component.
```
service ranger-usersync start
```

​Registering the HDP 2.4.2 Repo

Registering the HDP 2.4.2 Repo