[HIVE-28] [hive] small part files can result in case of a good filter or map-only jobs

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: Query Processor
• Assignee: Namit Jain
• Reporter: Namit Jain
• Created: 30/Sep/08 21:01
• Updated: 17/Dec/11 00:05
• Resolved: 17/Dec/09 23:07

Description

A map-only job can result in a lot of empty files.
Now if another job is created on this, it takes a lot of time - some hadoop issue - does not scale very well with a large number mappers