Connect to serverless compute

This article explains how serverless compute works on Databricks. The current serverless offerings include serverless SQL warehouses (Public Preview), serverless compute for notebooks (Public Preview), and serverless compute for workflows (Public Preview).

For information on serverless compute plane architecture, see Serverless compute plane.

What is serverless compute?

Serverless compute allows you to run workloads without provisioning a cluster. Instead, Databricks automatically allocates and manages the necessary compute resources. This enables you to focus on writing code and analyzing data, without worrying about cluster management or resource utilization.

Serverless compute offers the following benefits:

• Cloud resources are managed by Databricks, reducing management overhead and providing instant compute to enhance user productivity.

• Rapid start-up and scaling times for serverless compute resources minimize idle time and ensure you only pay for the compute you use.

• Because capacity handling, security, patching, and upgrades are managed automatically, you can worry less about reliability, security policies, and capacity shortages.

What types of serverless compute are available on Databricks?

Databricks currently offers the following types of serverless compute:

• Serverless compute for notebooks: On-demand, scalable compute used to run SQL and Python code in notebooks.

• Serverless compute for jobs: On-demand, scalable compute used to run your Databricks jobs without configuring and deploying infrastructure.

• Serverless SQL warehouses: On-demand elastic compute used to run SQL commands on data objects in the SQL editor or interactive notebooks. You can create SQL warehouses using the UI, CLI, or REST API.

Enable serverless compute

To access serverless compute for notebooks, jobs, and Delta Live Tables, an account admin must enable the feature at the workspace level. See Enable serverless compute.

To access serverless SQL warehouses, see Enable serverless SQL warehouses.

Serverless compute limitations

For a list of limitations, see Serverless compute limitations.

Frequently asked questions (FAQ)

How are releases rolled out?

Serverless compute is a versionless product, which means that Databricks automatically upgrades the serverless compute runtime to support enhancements and upgrades to the platform. All users get the same updates, rolled out over a short period of time.

How do I determine which serverless version I am running?

Serverless workloads always run on the latest runtime version. See Release notes for the most recent version.

How do I estimate costs for serverless?

Databricks recommends running and benchmarking a representative or specific workload and then analyzing the billing system table. See Billable usage system table reference.

How do I analyze DBU usage for a specific workload?

To see the cost for a specific workload, query the system.billing.usage system table. See Monitor the cost of serverless compute for sample queries and to download our cost observability dashboard.

Does serverless compute support private repos?

Repositories can be private or require authentication. For security reasons, a pre-signed URL is required when accessing authenticated repositories.

How do I install libraries for my job tasks?

Databricks recommends using environments to install and manage libraries for your jobs. See Configure environments and dependencies for non-notebook tasks.

Can I connect to custom data sources?

No, only sources that use Lakehouse Federation are supported. See Supported data sources.

How does the serverless compute plane networking work?

Serverless compute resources run in the serverless compute plane, which is managed by Databricks. For more details on the network and architecture, see Serverless compute plane networking.