Skip to main content

Cassandra Connections

Note

This feature may not be available in all product editions. For more information on available features, see Compare Editions.

Cassandra DB is a distributed system for deployment of a large number of nodes across multiple data centers. For more information, see https://cassandra.apache.org/.

Tip

This connection is in early preview. It is read-only and available only in SaaS product editions. For more information on early previews, see Early Preview Connection Types.

Limitations and Requirements

Note

During normal selection or import of an entire table, you may encounter an error indicating a problem with a specific column. Since some tables require filtering based on a particular column, data from them can only be ingested using custom SQL statements. In this case, the problematic column can be used as a filter in the WHERE clause of a custom SQL statement to ingest the table.

  • For more information, please consult the CData driver documentation for the specific table.

  • For more information on using custom SQL, see Create Dataset with SQL.

Note

For filtering date columns, this connection type supports a set of literal functions on dates. You can use these to reduce the volume of data extracted from the database using a custom SQL query. For more information, see the pg_dateliteralfunctions.htm page in the driver documentation for this connection type.

  • Supports Basic (username/password) authentication.

Create Connection

via Designer Cloud application

When you create the connection, please review the following properties and specify them accordingly:

Connection Property

Description

Port

By default, the port number is set to 9042. You can set to any required value. For more information, contact your administrator.

Host

Name of the host

Database

The database you want to read

Connect String Options

The following default value sets the connection timeout in seconds:

Timeout=0;

Setting this value to 0 disables timeouts.

Default Column Data Type Inference

Leave this value as Enabled.

For more information, see the driver documentation https://cdn.cdata.com/help/RCG/jdbc/ .

via API

Depending on your product edition, you can create connections of this type. Key information:

"vendor": "cassandradb",
"vendorName": "Cassandra DB",
"type": "jdbc"

For more information, see

Designer Cloud Powered by Trifacta: API Reference docs

Data Type Conversions

For more information, see the driver documentation https://cdn.cdata.com/help/RCG/jdbc/ .

In this section: