I'm studying Glue Data Catalog and I'm a bit confused. I know that Glue Data Catalog doesn't store the data itself but just the metadata for the databases and tables, but still, where is the location in which they are stored?
1 Answers
Based on publicly available information, Glue Catalog is a drop in replacement to Hive Metatore. It is highly likely that the architecture is very similar to Hive Metastore. At a high level, the Hive metastore consists of a Java server and a MySQL database. The admin manual provides more details.
So the metadata must be stored in a MySQL database managed internally by AWS. This is speculation as there is no concrete information available publicly.
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