21.9. FileSystem Metadata

The FileSystem data store (FSDS) stores metadata about partitions and data files, to avoid having to repeatedly interrogate the filesystem. When a new data file is added or removed, an associated metadata entry will be created to track the operation. GeoMesa uses Apache Iceberg for storing metadata.

Iceberg-specific configuration properties are configured through the FileSystem Data Store Parameters fs.config.properties and fs.config.file.

Key	Description
iceberg.namespace *	The namespace used for storing tables in Iceberg. This corresponds to different things, depending on the catalog used. For example, in Glue it’s the “database”.
type	The Iceberg catalog type to use. Currently supports hadoop, hive, rest, glue, nessie, jdbc, and bigquery
catalog-impl	Instead of type, a fully-qualified catalog class name may be specified

Additional properties will depend on the catalog being used. See the Apache Iceberg documentation for full details on the available properties.