[HIVE-2872] Store which configs the user has explicitly changed

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Hadoop Flags: Reviewed
• Assignee: Kevin Wilfong
• Reporter: Kevin Wilfong
• Created: 15/Mar/12 18:28
• Updated: 09/Jan/13 10:25
• Resolved: 16/Mar/12 06:21

Description

It would be useful to keep track of which config variables the user has explicitly changed from the values which are either default or loaded from hive-site.xml. These include config variables set using the hiveconf argument to the CLI, and via the SET command. This could be used to prevent Hive from changing a config variable which has been explicitly set by the user, and also potentially for logging to help with later debugging of failed queries.