[HIVE-18387] Minimize time that REBUILD locks the materialized view

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Materialized views
• Target Version/s: 3.0.0
• Assignee: Jesús Camacho Rodríguez
• Reporter: Jesús Camacho Rodríguez
• Created: 05/Jan/18 20:05
• Updated: 27/Feb/24 22:24
• Resolved: 16/Feb/18 11:25

Description

Currently, REBUILD will block the materialized view while the final move task is being executed. The idea for this improvement is to create the new materialization in a new folder (new version) and then just flip the pointer to the folder in the MV definition in the metastore. REBUILD operations for a given MV should get an exclusive lock though, i.e., they cannot be executed concurrently.

Issue Links

• contains: HIVE-18321 Support REBUILD for MVs backed by custom storage handlers
• links to: RB link