Adding a new node in an existing CDH cluster

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Adding a new node in an existing CDH cluster

You do not need to do anything when you add a new node to a CDH cluster.

If you have changed your Kerberos tokens or principal you must perform the following steps:

Update the following properties to ensure the latest Kerberos keytab file for Unravel is available on Unravel servers.
```
com.unraveldata.kerberos.principal=new principal
com.unraveldata.kerberos.keytab.path=new path
```
Make sure the new file's ownership/permission is restored to the original setup.
Restart all services.
```
sudo /etc/init.d/unravel_all.sh start
```

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