License

Polars On-Prem requires a license key to run. If you haven't contacted Polars yet, sign up here to apply. A license key looks like this:

{ "params": { "expiry": "2026-01-31T23:59:59Z", "name": "Company" }, "signature": "..." }

At the top level of the configuration file, you need to specify the path to the license file using the license key. For example:

cluster_id = "polars-cluster-dev"
instance_id = "scheduler"
license = "/etc/polars/license.json"
# ...

The cluster verifies the license key periodically, and will shutdown once the license expires.

EULA license

Polars On-Prem is licensed under the End User License Agreement (EULA) which can be found in the Polars On-Prem binary. The EULA must be accepted by setting the POLARS_EULA_ACCEPTED environment variable to 1. If the environment variable is not set, the executable will print the EULA and exit. You can also manually print the EULA using the following command:

polars-on-premises --print-eula