Establishing a Connection
Configure a Connection Profile
From the CData ribbon, click Get Data and select From HDFS connection/s to launch the CData Query window. To setup a new connection, you will have to click the New HDFS Connection button. Here you can set the connection settings, test the connection, and save the connection profile.
Connecting to HDFS
In order to connect, set the following connection properties:
- Host: Set this value to the host of your HDFS installation.
- Port: Set this value to the port of your HDFS installation. Default port: 50070
- UseSSL: (Optional) Set this value to 'True', to negotiate TLS/SSL connections to the HDFS server. Default: 'False'.
Authenticating to HDFS
There are two authentication methods available for connecting to the HDFS data source, Anonymous Authentication and Negotiate (Kerberos) Authentication.
Anonymous Authentication
In some situations, HDFS may be connected to without any authentication connection properties. To do so, set the AuthScheme to None (default).
Kerberos
When authentication credentials are required, you can use Kerberos. See Using Kerberos for details on how to authenticate with Kerberos.
Connection Properties
The Connection properties describe the various options that can be used to establish a connection.
Managing Connections
After successfully authenticating to HDFS you will be able to customize the data you are importing. To learn more about this, see Managing Connections.
See Also
- Querying Data: Use the data selection wizard to pull data into a spreadsheet. You can also configure scheduled data refresh here.
- Using the Excel Add-In: Find other ways to interact with HDFS data, such as using the available CData Excel Functions.