[HIVE-3646] Add 'IGNORE PROTECTION' predicate for dropping partitions

• Type: New Feature
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.11.0
• Component/s: CLI
• Hadoop Flags: Reviewed

Release Note

This is a feature which enables us to ignore protection for partitions when dropping them, if specified. The use case is moving partitions between clusters. Unprotecting and reprotecting tables is non-atomic and thus prone to leaving table metadata in a dirty state.

• Assignee: Andrew Chalfant
• Reporter: Andrew Chalfant
• Due: 30/Nov/12
• Created: 01/Nov/12 03:02
• Updated: 16/May/13 21:10
• Resolved: 17/Dec/12 10:49

Description

There are cases where it is desirable to move partitions between clusters. Having to undo protection and then re-protect tables in order to delete partitions from a source are multi-step and can leave us in a failed open state where partition and table metadata is dirty. By implementing an 'rm -rf'-like functionality, we can perform these operations atomically.