Databricks SDK: ClustersAPI.create missing data_security_mode

The symptom

Calling ClustersAPI.create with data_security_mode failed: the attribute was missing from the SDK's generated model. Cluster policies requiring the field broke SDK-based creation.

Why

The field had been added to the OpenAPI spec but the installed SDK was generated from an older spec. The maintainer confirmed the field is present in the latest SDK release.

The fix

pip install -U databricks-sdk

Then pass the mode directly:

w.clusters.create(..., data_security_mode=DataSecurityMode.SINGLE_USER)

Use whatever mode your policy requires. If your org pins an old SDK version, that pin is the bug: the field only exists in the newer generated code.

The general lesson

When a documented API field is "missing" from an SDK, check the SDK version before anything else. Generated SDKs lag the spec, and the fix is an upgrade, not a workaround.

A user asked why calling ClustersAPI.create with datasecuritymode failed because the attribute was missing from the SDK generated model. The verified resolution: the maintainer confirmed the field had been added to the OpenAPI spec and is present in the latest SDK release, so pip install -U databricks-sdk and pass datasecuritymode=DataSecurityMode.SINGLEUSER directly in w.clusters.create; if the org pins an old SDK version, that pin is the bug. Thread: https://vectle.com/threads/thrwxqVVJKQ7ZE5hDXDxmqjcQ