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Cloudera Impala connection

Cloudera Impala connection

To access your data in Cloudera Impala, create a connection asset for it.

Cloudera Impala provides SQL queries directly on your Apache Hadoop data stored in HDFS or HBase.

Supported versions

Cloudera Impala 1.3+

Create a connection to Cloudera Impala

To create the connection asset, you need these connection details:

  • Database name
  • Hostname or IP address
  • Port number
  • Username and password
  • SSL certificate (if required by the database server)

For Private connectivity, to connect to a database that is not externalized to the internet (for example, behind a firewall), you must set up a secure connection.

Choose the method for creating a connection based on where you are in the platform

In a project
Click Assets > New asset > Data access tools > Connection. See Adding a connection to a project.
In a catalog
Click Add to catalog > Connection. See Adding a connection asset to a catalog.
In a deployment space
Click Add to space > Connection. See Adding connections to a deployment space.
In the Platform assets catalog
Click New connection. See Adding platform connections.

Next step: Add data assets from the connection

Where you can use this connection

You can use Cloudera Impala connections in the following workspaces and tools:


  • Data Refinery (Watson Studio or IBM Knowledge Catalog)
  • DataStage (DataStage service). See Connecting to a data source in DataStage.
  • Metadata enrichment (IBM Knowledge Catalog)
  • Metadata import (IBM Knowledge Catalog)
  • SPSS Modeler (Watson Studio)


  • Platform assets catalog

  • Other catalogs (IBM Knowledge Catalog)

Watson Query service
You can connect to this data source from Watson Query.

Cloudera Impala setup

Cloudera Impala installation


You can use this connection only for source data. You cannot write to data or export data with this connection.

Running SQL statements

To ensure that your SQL statements run correctly, refer to the Impala SQL Language Reference for the correct syntax.

Learn more

Cloudera Impala documentation

Parent topic: Supported connections

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