[HIVE-15951] Make sure base persist directory is unique and deleted

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.0
• Component/s: Druid integration
• Assignee: Slim Bouguerra
• Reporter: Slim Bouguerra
• Created: 16/Feb/17 22:14
• Updated: 25/Jul/17 20:04
• Resolved: 24/Feb/17 23:47

Description

In some cases the base persist directory will contain old data or shared between reducer in the same physical VM.
That will lead to the failure of the job till that the directory is cleaned.