What is AWS Glue?

AWS Glue is a fully managed extract, transform, and load (ETL) service that makes it easy to prepare and load data for analytics. It provides a data catalog for storing metadata, automatically discovers and profiles data, generates ETL code in Python or Scala, and runs ETL jobs on a serverless Apache Spark environment. Glue Crawler automatically scans data sources and populates the Data Catalog with table definitions. Glue supports various data sources including S3, RDS, Redshift, and on-premises databases. It enables data integration, transformation, and preparation for analytics and machine learning workloads.