Contributing to Apache DataFusion Comet#

We welcome contributions to Comet in many areas, and encourage new contributors to get involved.

Here are some areas where you can help:

  • Testing Comet with existing Spark jobs and reporting issues for any bugs or performance issues

  • Contributing code to support Spark expressions, operators, and data types that are not currently supported

  • Reviewing pull requests and helping to test new features for correctness and performance

  • Improving documentation

Finding issues to work on#

We maintain a list of good first issues in GitHub here. We also have a roadmap.

To assign yourself an issue, comment take on the issue. To unassign yourself, comment untake.

Reporting issues#

We use GitHub issues for bug reports and feature requests.

Asking for Help#

The Comet project uses the same Slack and Discord channels as the main Apache DataFusion project. See details at Apache DataFusion Communications. There are dedicated Comet channels in both Slack and Discord.

Regular public meetings#

The Comet contributors hold regular video calls where new and current contributors are welcome to ask questions and coordinate on issues that they are working on.

The call is held weekly on Thursdays from 4:00 PM to 5:00 PM PST (America/Los_Angeles). Join via the Google Meet video call link, or add the meeting to your calendar by subscribing to the Comet community meeting Google Calendar.

See the Comet community meeting notes for more information.