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DDAE Metastore is nothing but a dedicated Hive Metastore Server (HMS)
The Hive Metastore (HMS) is a central repository of metadata for Hive, Iceberg, Delta and Hudi tables, and provides DDAE client access to this information using the metastore service API. It is the building block for Dell Data Lakehouse that use the diverse world of open-source software, such as Apache Spark and DDAE’s Trino.