Connect to Google Cloud Storage Data in as an External Source in Dremio

The CData JDBC Driver for Google Cloud Storage implements JDBC Standards and allows various applications, including Dremio, to work with live Google Cloud Storage data. Dremio is a data lakehouse platform designed to empower self-service, interactive analytics on the data lake. With the CData JDBC Driver, you can include live Google Cloud Storage data as a part of your enterprise data lake. This article describes how to connect to Google Cloud Storage data from Dremio as an External Source.

The CData JDBC Driver enables high-speed access to live Google Cloud Storage data in Dremio. Once you install the driver, authenticate with Google Cloud Storage and gain immediate access to Google Cloud Storage data within your data lake. By surfacing Google Cloud Storage data using native data types and handling complex filters, aggregations, & other operations automatically, the CData JDBC Driver grants seamless access to Google Cloud Storage data.

Build the ARP Connector

To use the CData JDBC Driver in Dremio, you need to build an Advanced Relation Pushdown (ARP) Connector. You can view the source code for the Connector on GitHub or download the ZIP file (GitHub.com) directly. Once you copy or extract the files, run the following command from the root directory of the connector (the directory containing the pom.xml file) to build the connector.

mvn clean install

Once the JAR file for the connector is built (in the target directory), you are ready to copy the ARP connector and JDBC Driver to your Dremio instance.

Installing the Connector and JDBC Driver

Install the ARP Connector to %DREMIO_HOME%/jars/ and the JDBC Driver for Google Cloud Storage to %DREMIO_HOME%/jars/3rdparty. You can use commands similar to the following:

ARP Connector

docker cp PATH\TO\dremio-googlecloudstorage-plugin-20.0.0.jar dremio_image_name:/opt/dremio/jars/

JDBC Driver for Google Cloud Storage

docker cp PATH\TO\cdata.jdbc.googlecloudstorage.jar dremio_image_name:/opt/dremio/jars/3rdparty/

Connecting to Google Cloud Storage

Google Cloud Storage will now appear as an External Source option in Dremio. The ARP Connector built uses a JDBC URL to connect to Google Cloud Storage data. The JDBC Driver has a built-in connection string designer that you can use (see below).

Built-in Connection String Designer

For assistance in constructing the JDBC URL, use the connection string designer built into the Google Cloud Storage JDBC Driver. Double-click the JAR file or execute the jar file from the command line.

java -jar cdata.jdbc.googlecloudstorage.jar

Fill in the connection properties and copy the connection string to the clipboard.

Authenticate with a User Account

You can connect without setting any connection properties for your user credentials. After setting InitiateOAuth to GETANDREFRESH, you are ready to connect.

When you connect, the Google Cloud Storage OAuth endpoint opens in your default browser. Log in and grant permissions, then the OAuth process completes

Authenticate with a Service Account

Service accounts have silent authentication, without user authentication in the browser. You can also use a service account to delegate enterprise-wide access scopes.

You need to create an OAuth application in this flow. See the Help documentation for more information. After setting the following connection properties, you are ready to connect:

• InitiateOAuth: Set this to GETANDREFRESH.
• OAuthJWTCertType: Set this to "PFXFILE".
• OAuthJWTCert: Set this to the path to the .p12 file you generated.
• OAuthJWTCertPassword: Set this to the password of the .p12 file.
• OAuthJWTCertSubject: Set this to "*" to pick the first certificate in the certificate store.
• OAuthJWTIssuer: In the service accounts section, click Manage Service Accounts and set this field to the email address displayed in the service account Id field.
• OAuthJWTSubject: Set this to your enterprise Id if your subject type is set to "enterprise" or your app user Id if your subject type is set to "user".
• ProjectId: Set this to the Id of the project you want to connect to.

The OAuth flow for a service account then completes.

NOTE: To use the JDBC Driver in Dremio, you will need a license (full or trial) and a Runtime Key (RTK). For more information on obtaining this license (or a trial), contact our sales team.

Add the Runtime Key (RTK) to the JDBC URL. You will end up with a JDBC URL similar to the following:

jdbc:googlecloudstorage:RTK=5246...;ProjectId='project1';InitiateOAuth=GETANDREFRESH

Access Google Cloud Storage as an External Source

To add Google Cloud Storage as an External Source, click to add a new source and select GoogleCloudStorage. Copy the JDBC URL and paste it into the New GoogleCloudStorage Source wizard.

Save the connection and you are ready to query live Google Cloud Storage data in Dremio, easily incorporating Google Cloud Storage data into your data lake.

More Information & Free Trial

Using the CData JDBC Driver for Google Cloud Storage in Dremio, you can incorporate live Google Cloud Storage data into your data lake. Check out our CData JDBC Driver for Google Cloud Storage page for more information about connecting to Google Cloud Storage. Download a free, 30 day trial of the CData JDBC Driver for Google Cloud Storage and get started today.