QuestDB

QuestDB (opens in a new tab) is a high-performance time-series database (opens in a new tab) which helps you overcome ingestion bottlenecks.

The driver for QuestDB is supported by its vendor. Please report any issues to their Slack (opens in a new tab).

Prerequisites

The hostname for the QuestDB database server
- If QuestDB is not running, checkout the QuestDB quick start (opens in a new tab)
Docker (opens in a new tab) (optional)

Setup

Docker

Create a dockerfile within the project directory:

services:
  cube:
    environment:
      - CUBEJS_DEV_MODE=true
    image: "cubejs/cube:latest"
    ports:
      - "4000:4000"
    volumes:
      - ".:/cube/conf"
  questdb:
    container_name: questdb
    hostname: questdb
    image: "questdb/questdb:latest"
    ports:
      - "9000:9000"
      - "8812:8812"

Within your project directory, create an .env file:

CUBEJS_DB_TYPE=questdb
CUBEJS_DB_HOST=my.questdb.host
CUBEJS_DB_PORT=8812
CUBEJS_DB_NAME=qdb
CUBEJS_DB_USER=admin
CUBEJS_DB_PASS=quest

Finally, bring it all up with Docker:

docker-compose up -d

Access Cube at http://localhost:4000 (opens in a new tab) & QuestDB at http://localhost:9000 (opens in a new tab)

Environment Variables

Environment Variable	Description	Possible Values	Required
`CUBEJS_DB_HOST`	The host URL for a database	A valid database host URL	✅
`CUBEJS_DB_PORT`	The port for the database connection	A valid port number	✅
`CUBEJS_DB_NAME`	The name of the database to connect to	A valid database name	✅
`CUBEJS_DB_USER`	The username used to connect to the database	A valid database username	✅
`CUBEJS_DB_PASS`	The password used to connect to the database	A valid database password	✅
`CUBEJS_DB_SSL`	If `true`, enables SSL encryption for database connections from Cube	`true`, `false`	❌
`CUBEJS_DB_MAX_POOL`	The maximum number of concurrent database connections to pool. Default is `8`	A valid number	❌
`CUBEJS_CONCURRENCY`	The number of concurrent queries to the data source	A valid number	❌

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