Snapshot tagging

Q: How deeply does Architecting an Apache Iceberg Lakehouse cover snapshot tagging?

Explains retention tradeoffs and operational purpose but does not specify tagging commands or metadata internals.

As explained in Architecting an Apache Iceberg Lakehouse

Snapshot tagging is the assignment of persistent labels to selected table snapshots so that important historical states can be identified and protected.

Snapshot tagging assigns persistent labels to selected table snapshots, protecting important historical states while routine snapshot history is aggressively expired. It addresses the tradeoff between controlling metadata growth and preserving reliable recovery points, especially in CDC-heavy or streaming-oriented tables. section 10.3.1

Use snapshot tagging when fixed-count retention or short time-based windows would remove valuable history:

Preserve snapshots required for audits, backfills, or controlled rollbacks. section 10.3.1
Combine tags with aggressive expiration to prune routine snapshots without sacrificing selected states. section 10.3.1
Tune retention around workload behavior rather than retaining large numbers of snapshots indiscriminately. section 10.3.1

How Architecting an Apache Iceberg Lakehouse covers it

Cover of Architecting an Apache Iceberg Lakehouse

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Related concepts

snapshot expirationuses · Snapshot expiration is the removal of references to older Iceberg table snapshots so their unneeded files can become eligible for cleanup.
snapshot managementconfigured by · Snapshot management is the practice of creating, cataloging, retaining, expiring, and removing snapshots according to defined policies.

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.