Local file system support

Trino includes support to access a local file system with a catalog using the Delta Lake, Hive, Hudi, or Iceberg connectors. The local file system must be a local mount point for a shared file system available on all cluster nodes.

Support for local file system is not enabled by default, but can be activated by setting the fs.local.enabled property to true in your catalog configuration file.

General configuration

Use the following properties to configure general aspects of local file system support:

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• • Property
  • Description
• • fs.native-local.enabled
  • Activate the support for local file system access. Defaults to false. Set to true to use local file system and enable all other properties.
• • local.location
  • Local path on all nodes to the root of the shared file system using the prefix local:// with the path to the mount point.

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The following example displays the related section from a etc/catalog/example.properties catalog configuration using the Hive connector. The coordinator and all workers nodes have an external storage mounted at /storage/datalake, resulting in the location local:///storage/datalake.

connector.name=hive
...
fs.native-local.enabled=true
local.location=local:///storage/datalake

Creating a schema named default results in the path /storage/datalake/default. Tables within that schema result in separated directories such as /storage/datalake/default/table1.