Snowflake setup
profiles.yml
file is for dbt Core users onlyIf you're using dbt Cloud, you don't need to create a profiles.yml
file. This file is only for dbt Core users. To connect your data platform to dbt Cloud, refer to About data platforms.
- Maintained by: dbt Labs
- Authors: core dbt maintainers
- GitHub repo: dbt-labs/dbt-snowflake
- PyPI package:
dbt-snowflake
- Slack channel: #db-snowflake
- Supported dbt Core version: v0.8.0 and newer
- dbt Cloud support: Supported
- Minimum data platform version: n/a
Installing dbt-snowflake
Use pip
to install the adapter. Before 1.8, installing the adapter would automatically install dbt-core
and any additional dependencies. Beginning in 1.8, installing an adapter does not automatically install dbt-core
. This is because adapters and dbt Core versions have been decoupled from each other so we no longer want to overwrite existing dbt-core installations.
Use the following command for installation:
Configuring dbt-snowflake
For Snowflake-specific configuration, please refer to Snowflake configs.
Authentication Methods
User / Password authentication
Snowflake can be configured using basic user/password authentication as shown below.
Along with adding the authenticator
parameter, be sure to run alter account set allow_client_mfa_caching = true;
in your Snowflake warehouse. Together, these will allow you to easily verify authentication with the DUO Mobile app (skipping this results in push notifications for every model built on every dbt run
).
Key pair authentication
To use key pair authentication, specify the private_key_path
in your configuration, avoiding the use of a password
. If needed, you can add a private_key_passphrase
. Note: Unencrypted private keys are accepted, so add a passphrase only if necessary. However, for dbt Core versions 1.5 and 1.6, configurations using a private key in PEM format (for example, keys enclosed with BEGIN and END tags) are not supported. In these versions, you must use the private_key_path
to reference the location of your private key file.
Starting from dbt version 1.7, dbt introduced the ability to specify a private_key
directly as a string instead of a private_key_path
. This private_key
string can be in either Base64-encoded DER format, representing the key bytes, or in plain-text PEM format. Refer to Snowflake documentation for more info on how they generate the key.
Note: By default, every connection that dbt opens will require you to re-authenticate in a browser. The Snowflake connector package supports caching your session token, but it currently only supports Windows and Mac OS.
Refer to the Snowflake docs for info on how to enable this feature in your account.
Configurations
The "base" configs for Snowflake targets are shown below. Note that you should also specify auth-related configs specific to the authentication method you are using as described above.
All configurations
Config | Required? | Description |
---|---|---|
account | Yes | The account to connect to as per Snowflake's documentation. See notes below |
user | Yes | The user to log in as |
database | Yes | The database that dbt should create models in |
warehouse | Yes | The warehouse to use when building models |
schema | Yes | The schema to build models into by default. Can be overridden with custom schemas |
role | No (but recommended) | The role to assume when running queries as the specified user. |
client_session_keep_alive | No | If True , the snowflake client will keep connections for longer than the default 4 hours. This is helpful when particularly long-running queries are executing (> 4 hours). Default: False (see note below) |
threads | No | The number of concurrent models dbt should build. Set this to a higher number if using a bigger warehouse. Default=1 |
query_tag | No | A value with which to tag all queries, for later searching in QUERY_HISTORY view |
retry_all | No | A boolean flag indicating whether to retry on all Snowflake connector errors |
retry_on_database_errors | No | A boolean flag indicating whether to retry after encountering errors of type snowflake.connector.errors.DatabaseError |
connect_retries | No | The number of times to retry after an unsuccessful connection |
connect_timeout | No | The number of seconds to sleep between failed connection retries |
reuse_connections | No | A boolean flag indicating whether to reuse idle connections to help reduce total connections opened. Default is False . |
account
For AWS accounts in the US West default region, you can use abc123
(without any other segments). For some AWS accounts you will have to append the region and/or cloud platform. For example, abc123.eu-west-1
or abc123.eu-west-2.aws
.
For GCP and Azure-based accounts, you have to append the region and cloud platform, such as gcp
or azure
, respectively. For example, abc123.us-central1.gcp
. For details, see Snowflake's documentation: "Specifying Region Information in Your Account Hostname".
Please also note that the Snowflake account name should only be the account_name
without the prefixed organization_name
. To determine if the region and/or cloud platform needs to be appended to the account locator in the legacy format, see Snowflake's documentation on "Non-VPS account locator formats by cloud platform and region".
client_session_keep_alive
The client_session_keep_alive
feature is intended to keep Snowflake sessions alive beyond the typical 4 hour timeout limit. The snowflake-connector-python implementation of this feature can prevent processes that use it (read: dbt) from exiting in specific scenarios. If you encounter this in your deployment of dbt, please let us know in the GitHub issue, and work around it by disabling the keepalive.
query_tag
Query tags are a Snowflake parameter that can be quite useful later on when searching in the QUERY_HISTORY view.
reuse_connections
During node execution (such as model and test), dbt opens connections against a Snowflake warehouse. Setting this configuration to True
reduces execution time by verifying credentials only once for each thread.
retry_on_database_errors
The retry_on_database_errors
flag along with the connect_retries
count specification is intended to make retries configurable after the snowflake connector encounters errors of type snowflake.connector.errors.DatabaseError. These retries can be helpful for handling errors of type "JWT token is invalid" when using key pair authentication.
retry_all
The retry_all
flag along with the connect_retries
count specification is intended to make retries configurable after the snowflake connector encounters any error.