Creating a Druid Database
This page covers the configuration specific to Druid — its Database Mode and any engine-specific settings shown below. The rest of the creation flow — opening the wizard, namespace and name, version, machine profile, storage, and optional features — is the same for every engine and is documented in Common Steps.
Database Mode
Druid is always deployed as a Topology of role-separated process tiers. Configure each tier’s node count and resources independently.
| Node | Description |
|---|---|
| Coordinators | Manage data availability, segment balancing, and cluster coordination. |
| MiddleManagers | Run ingestion tasks and index new data. |
| Historicals | Store and serve queryable historical segments. |
| Brokers | Receive queries and route them to the appropriate Historicals/MiddleManagers. |
Each tier has its own Number of Replicas, Storage size, Machine, CPU, and Memory fields. Druid also requires dependent metadata storage and deep storage, configured by the platform.
Druid Dependencies
Druid relies on external dependencies for metadata, deep storage, and coordination. Each can be provisioned by the platform or pointed at an existing, externally-managed instance.
Deep Storage — Durable storage for Druid segments.
| Field | Description |
|---|---|
| Type | Deep storage backend: s3, google, azure, or hdfs. |
| Config Secret | Secret holding the credentials/configuration for the chosen backend. |
Metadata Storage — Relational database holding Druid metadata.
| Field | Description |
|---|---|
| Type | MySQL or Postgres. |
| Externally Managed | Toggle on to reference an existing database instead of provisioning one. |
| Namespace / Name | Reference to the metadata database when externally managed. |
ZooKeeper — Coordination service for the Druid cluster.
| Field | Description |
|---|---|
| Externally Managed | Toggle on to reference an existing ZooKeeper instead of provisioning one. |
| Namespace / Name | Reference to the ZooKeeper instance when externally managed. |
Create a Druid Database
- Open the wizard and select Druid — see Getting Started and Select a Database Type.
- Set the namespace and name.
- Pick the database version and the Database Mode described above, then set the machine profile and storage — see Configure the Database.
- Optionally configure Advanced Configuration (labels, deletion policy, credentials, point-in-time recovery) and Additional Options (monitoring, backup, TLS, gateway).
- Click Deploy.