Alex Merced • 8/26/2025

Using Iceberg Metadata Tables to Determine When Compaction Is Needed

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This technical guide details how to leverage Apache Iceberg's built-in metadata tables (files, manifests, snapshots) to monitor table health. It provides SQL queries to detect small files, fragmented manifests, and snapshot velocity, enabling data engineers to automate and optimize compaction workflows instead of relying on fixed schedules.

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#Apache Iceberg #Data Lakehouse #Table Optimization
Using Iceberg Metadata Tables to Determine When Compaction Is Needed

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