[HIVE-16729] Improve location validator to check for blank paths.

• Type: Sub-task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Hive
• Assignee: Naveen Gangam
• Reporter: Naveen Gangam
• Created: 22/May/17 18:47
• Updated: 22/May/18 23:59
• Resolved: 12/Jun/17 19:46

Description

Currently, the schema tool location validator succeeds even when the location for hive table/partitions have paths like
hdfs://myhost.com:8020/
hdfs://myhost.com:8020

where there is actually no "real" path. Having the validator report such path would be beneficial in preventing runtime errors.