Databricks

Databricks uses a webhook receiver (paid runtime) via Databricks Webhooks (MLflow) and Databricks SQL Alerts.

Webhook receiver (paid runtime)

POST /webhooks/databricks/{tenant_id}

Signature: Databricks webhooks send an Authorization: Bearer header with a configurable token. The receiver validates the token against the per-tenant secret.

Setup

Option A — Databricks Webhooks (MLflow experiment events)

Create a webhook via the Databricks CLI or REST API:

databricks mlflow webhooks create \
  --events MODEL_VERSION_CREATED,MODEL_VERSION_TRANSITIONED_STAGE \
  --http-url-spec '{"url":"https://runtime.myceliumai.co/webhooks/databricks/{tenant_id}","authorization":"Bearer {your_secret}"}'

Add to the runtime env: DATABRICKS_WEBHOOK_TOKEN_{TENANT_ID}.

Option B — Databricks SQL Alerts

Create a Databricks SQL Alert on any query.
Set the notification destination to a webhook pointing to https://runtime.myceliumai.co/webhooks/databricks/{your_tenant_id} with the Bearer token.

Option C — Unity Catalog audit logs Configure Unity Catalog audit log streaming to a Delta table, then use a Databricks Job to call the Mycelium External Function (same pattern as Snowflake).

Events ingested

Databricks event	Memory category	Notes
Model stage transition	decision	Model promoted to staging or production
SQL Alert triggered	exception	Threshold-crossing on monitored queries
Job run succeeded	fact	Pipeline run result and duration
Job run failed	exception	Failure with error details
Unity Catalog audit	fact	Data access and governance events

Retry behavior

Failed deliveries land in the per-tenant dead-letter folder. Replay via:

POST /admin/webhooks/replay/{tenant_id}/{event_id}

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Webhook receiver (paid runtime)

Setup

Events ingested

Retry behavior

​Webhook receiver (paid runtime)

​Setup

​Events ingested

​Retry behavior

Webhook receiver (paid runtime)

Setup

Events ingested

Retry behavior