Topic
migration
7 posts tagged “migration”.
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Migrating Into Iceberg Without Moving Data
There are three ways to get an existing dataset into Iceberg and only one of them involves copying files. Teams reach for the copy by default,…
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Moving Iceberg Tables Between Catalogs Without Rewriting Data
A platform team has 3,000 Iceberg tables in a Hive Metastore and 900 terabytes of Parquet behind them. They are moving to a REST catalog. Someone on…
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Zero-Copy Warehouse Modernization: Migrating Legacy Databases to Apache Iceberg Without Downtime
The migration plan looked reasonable in the kickoff deck. Extract 4,000 tables from a 15-year-old enterprise warehouse, load them into cloud object…
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A Migration Playbook for Moving Legacy Warehouses onto Apache Iceberg
The migration plan says twelve weeks. Week fourteen arrives and the team has moved four tables out of six hundred, because table number five turned…
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Zero-Copy Mirroring to Open Iceberg Tables
The most expensive part of moving off a proprietary warehouse is usually not the compute contract. It is the copy. Rewriting terabytes of data into a…
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Migrating Proprietary Warehouses to Open Lakehouses: The 2026 Playbook for Zero-Copy Metadata Translation
Every warehouse migration sounds simpler before the first inventory. Then the team discovers old dashboards, hidden dependencies, undocumented stored…
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Zero-Copy Mirroring for Modern Lakehouse Migration
Zero-copy mirroring gives teams a safer migration path because they can expose a lakehouse surface before they duplicate every byte or rewrite every…