> ## Documentation Index
> Fetch the complete documentation index at: https://cubed3-claude-gallant-ramanujan-8g6i2k.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Materialize

> The driver for Materialize is supported by its vendor. Please report any issues to their Slack.

<Warning>
  The driver for Materialize is supported by its vendor. Please report any issues
  to their [Slack][materialize-slack].
</Warning>

## Prerequisites

* The hostname for the [Materialize][materialize] database server

## Setup

### Manual

Add the following to a `.env` file in your Cube project:

```dotenv theme={null}
CUBEJS_DB_TYPE=materialize
CUBEJS_DB_HOST=my.materialize.host
CUBEJS_DB_PORT=6875
CUBEJS_DB_NAME=materialize
CUBEJS_DB_USER=materialize
CUBEJS_DB_PASS=materialize
CUBEJS_DB_MATERIALIZE_CLUSTER=quickstart
```

## Environment Variables

| Environment Variable | Description | Possible Values | Required |
| - | - | - | :-: |
| [`CUBEJS_DB_HOST`](/reference/configuration/environment-variables#cubejs_db_host) | The host URL for a database | A valid database host URL | ✅ |
| [`CUBEJS_DB_PORT`](/reference/configuration/environment-variables#cubejs_db_port) | The port for the database connection | A valid port number | ✅ |
| [`CUBEJS_DB_NAME`](/reference/configuration/environment-variables#cubejs_db_name) | The name of the database to connect to | A valid database name | ✅ |
| [`CUBEJS_DB_USER`](/reference/configuration/environment-variables#cubejs_db_user) | The username used to connect to the database | A valid database username | ✅ |
| [`CUBEJS_DB_PASS`](/reference/configuration/environment-variables#cubejs_db_pass) | The password used to connect to the database | A valid database password | ✅ |
| [`CUBEJS_DB_MAX_POOL`](/reference/configuration/environment-variables#cubejs_db_max_pool) | The maximum number of concurrent database connections to pool. Default is `8` | A valid number | ❌ |
| [`CUBEJS_DB_MATERIALIZE_CLUSTER`](/reference/configuration/environment-variables#cubejs_db_materialize_cluster) | The name of the Materialize cluster to connect to | A valid cluster name | ❌ |
| [`CUBEJS_CONCURRENCY`](/reference/configuration/environment-variables#cubejs_concurrency) | The number of [concurrent queries][ref-data-source-concurrency] to the data source | A valid number | ❌ |

[ref-data-source-concurrency]: /admin/connect-to-data/concurrency#data-source-concurrency

## SSL

To enable SSL-encrypted connections between Cube and Materialize, set the
[`CUBEJS_DB_SSL`](/reference/configuration/environment-variables#cubejs_db_ssl) environment variable to `true`. For more information on how to
configure custom certificates, please check out [Enable SSL Connections to the
Database][ref-recipe-enable-ssl].

[materialize]: https://materialize.com/docs/

[materialize-slack]: https://materialize.com/s/chat

[ref-recipe-enable-ssl]: /recipes/configuration/using-ssl-connections-to-data-source