Create Interactive Metabase Dashboards that Work with Avro Data

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CData Connect



Use CData Connect to create a virtual MySQL database for Avro data and create an interactive dashboard in Metabase from Avro data.

Metabase is an open source data visualization tool that allows users to create interactive dashboards. When paired with CData Connect Cloud, users can easily create visualizations and dashboards linked to live Avro data. This article describes how to create a virtual database for Avro and build a simple visualization using Avro data.

CData Connect provides a pure SQL interface for Avro, allowing you to easily integrate with live Avro data in Metabase — without replicating the data. Connect looks exactly like a MySQL database to Metabase and uses optimized data processing out of the box to push all supported SQL operations (filters, JOINs, etc) directly to Avro, leveraging server-side processing to quickly return Avro data.

Create a Virtual MySQL Database for Avro Data

CData Connect Cloud uses a straightforward, point-and-click interface to connect to data sources and generate APIs.

  1. Log into Connect Cloud and click Databases.
  2. Select "Avro" from Available Data Sources.
  3. Enter the necessary authentication properties to connect to Avro. Connect to your local Avro file(s) by setting the URI connection property to the location of the Avro file.
  4. Click Test Database.
  5. Click Privileges -> Add and add the new user (or an existing user) with the appropriate permissions.

Connect to CData Connect from Metabase

After creating the virtual database, navigate to your Metabase instance. Use the MySQL interface to connect to CData Connect.

  1. Navigate to the administration screen (Settings -> Admin) and click "Add Database" from the "Databases" tab
  2. Configure the connection to CData Connect and click "Save"
    • Database type: Select "MySQL"
    • Name: Name the connection (e.g. "Avro (CData Connect)")
    • Host: The URL of your Connect instance (e.g. https://myinstance.cdatacloud.net)
    • Port: The port of the MySQL endpoint for your Connect instance (e.g. 3306)
    • Database name: The name of the virtual database you just created (e.g. Avro1)
    • Username: A CData Connect username
    • Password: The password for the above CData Connect user
    • Click to Use a secure connection (SSL)

Query Avro Data with Metabase

Once you configure the connection to CData Connect, you can query Avro and build visualizations.

  1. Use the "Write SQL" tool to retrieve the Avro data
  2. Write a SQL query based on the virtual database, e.g.

    SELECT Id, Column1 FROM SampleTable_1 WHERE Column2 = 'value_2'
  3. Navigate to the "Visualization" screen, choose a visualization, and configure the visualization

More Information & Free Trial

At this point, you have built a simple visualization from Avro data in Metabase. You can continue to work with live Avro data in Metabase just like you would any MySQL database. For more information on creating a virtual MySQL database for Avro (and more than 200 other data sources), visit the Connect Cloud page. Sign up for a free trial and start working with live Avro data in Metabase today.