Metadata rewrite changes absolute paths in Iceberg table metadata so replicated data and metadata files reference their new storage location. It is required because object-store replication alone leaves the recovered table pointing to the original region. Recovery therefore coordinates file replication, metadata rewriting, and separate catalog-state replication. Relative paths planned for Iceberg v4 may eventually reduce this operational burden. section 11.3.3
Metadata rewrite
Metadata rewrite is the process of changing table metadata file paths so they reference replicated storage locations.
How Architecting an Apache Iceberg Lakehouse covers it
- How deep it goes
- Explains the absolute-path limitation, required workflow, operational complexity, and planned relative-path alternative.
- Examples
- Uses replicated buckets in separate regions and procedures that rewrite paths to the replicated storage location.
- What it assumes
- Assumes familiarity with Iceberg tables, metadata files, object storage, and catalogs.
- What you can do after
- Operate cross-region recovery by coordinating file replication with metadata rewriting and catalog-state replication.
- How it connects
- Connects Apache Iceberg metadata with object-store replication, catalogs, cross-region recovery, and relative paths.
Related concepts
- replicationused by · Replication is the creation or maintenance of multiple copies of data, state, or functionality across separate locations or components.
This explainer was generated by Manning's knowledge graph from the text of Architecting an Apache Iceberg Lakehouse. The section links point to the parts of the book it draws on.