> For the complete documentation index, see [llms.txt](https://docs.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.collibra.com/data-quality-self-hosted/connections/supported-connections/supported-remote-files/connecting-to-hadoop-distributed-file-system-hdfs.md). # Connecting to Hadoop Distributed File System (HDFS) This section contains an overview of Hadoop Distributed File System (HDFS). ## General information

Field	Description
Data source	Hadoop Distributed File System (HDFS)
Supported versions	N/A
Connection string	`hdfs://`
Packaged?	Yes
Certified?	Yes
Supported features
Analyze data	Yes
Archive breaking records	No
Estimate job	Yes
Pushdown	No
Processing capabilities
Spark agent	Yes
Yarn agent	Yes

## Minimum user permissions In order for Collibra DQ to access your HDFS bucket, you need the following permissions. * Read access to the path in your HDFS connection. ## Recommended and required connection properties

Required	Connection Property	Type	Value
Yes	Name	Text	The unique name of your connection. Do not use spaces in your connection name and only use valid characters.
Yes	Connection URL	String	The connection string path of your HDFS connection. The path must start with `hdfs://` and point to the root bucket, not a sub-folder. `hdfs://<name node>:8020/`
Yes	Target Agent	Option	The Agent used to submit your DQ Jobs.
Yes	Auth Type	Option	The method to authenticate your connection. The configuration requirements are different depending on the Auth Type you select. See Authentication for more details on available authentication types.
Yes	Save Credentials	Option	Select this option after you enter your connection details.
No	Properties	String	The configurable driver properties for your connection. Multiple properties must be semicolon-delimited, and each property=value pair, including the last one, must end with a semicolon (;). `abc=123;test=true;` To ensure that your remote procedures are secure within Collibra DQ, we recommend defining the following driver property: `hadoop.rpc.protection=privacy`

## Authentication Select an authentication type from the dropdown menu. The options available in the dropdown menu are the currently supported authentication types for this data source. {% tabs %} {% tab title="Keytab" %}

Field	Description
Principal	The service principal used to let Collibra DQ access your connection.
Key	The keytab used to authorize your connection.

{% endtab %} {% tab title="TGT Cache" %}

Field	Description
Principal	The service principal used to let Collibra DQ access your connection.
TGT	The Ticket Granting Ticket used to authorize your connection.

{% endtab %} {% endtabs %}