Databricks does not use YARN (Yet Another Resource Negotiator), a resource management framework primarily used in Hadoop environments.

Databricks has its own proprietary cluster manager and resource allocation mechanisms optimized for the Databricks platform and its workloads. While it shares some similarities with YARN in distributing work across a cluster, it’s not based on YARN.

If you’re interested in learning more about Databricks’ architecture and resource management, you can check out these resources:

• Databricks Community: Look for discussions and articles about cluster management and resource allocation within the Databricks ecosystem.
• Databricks Documentation: The official documentation may provide insights into the underlying architecture and how resources are managed.