[RANGER-2196] Ensure that any explicit threads used by Ranger are marked as daemon threads

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: master
• Fix Version/s: 2.0.0, 1.2.0
• Component/s: Ranger
• Assignee: Abhay Kulkarni
• Reporter: Abhay Kulkarni
• Created: 22/Aug/18 22:50
• Updated: 27/Sep/18 05:35
• Resolved: 23/Aug/18 01:04

Description

Non-daemon threads may cause ranger-admin process to wait until all such threads terminate even when main() terminates. This may cause ranger-admin to appear to be hanging and may trigger restart from any monitoring system.