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Object locking

As explained in Architecting an Apache Iceberg Lakehouse

An object lock configuration applies retention or deletion restrictions to objects in storage.

Object locking applies retention or deletion restrictions to storage objects. It helps protect Iceberg data and metadata files from deletion or overwriting, supporting compliance, fault tolerance, and recovery requirements. section 5.4.6 section 5.5.3

Use object locking when storage integrity requires:

  • Preventing deletions or overwrites during a defined retention period. section 5.5.3
  • Supporting legal, archival, or regulatory requirements for immutability and tamper resistance. section 5.5.3
  • Reducing the impact of ransomware, accidental overwrites, or destructive misconfiguration when combined with object versioning. section 11.3.2

Long-term retention

A government agency retains historical Iceberg records for more than a decade. Object locking with WORM policies prevents deletion or overwriting during the required period, while bucket-level compliance controls can enforce the policy. section 5.5.3

Figure 11.4 With object versioning, if an object is corrupted or lost, you can revert to the previous version of the object. Here, the object is a data or metadata file in storage.

Inspect how object versioning supports recovery by retaining previous data or metadata-file versions alongside immutable storage policies. section 11.3.2

How Architecting an Apache Iceberg Lakehouse covers it

How deep it goes
Explains retention, WORM behavior, and recovery combinations but stops short of provider-specific configuration steps.
Examples
Uses MinIO, Amazon S3, Wasabi, and NetApp StorageGRID, including a decade-long government records scenario.
What it assumes
Assumes familiarity with object storage and Iceberg files while distinguishing locking from versioning and permission controls.
What you can do after
Operate/configure retention policies that preserve critical objects and limit damage from deletion, overwriting, or corruption.
How it connects
Connects object versioning, WORM storage, Iceberg snapshots, permissions, and data-loss recovery.

Related concepts

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.