[REEF-1756] Make sure there's System.exit() at the end of each REEFEnvironment process; add TODO comment to each call

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.16
• Component/s: REEF Driver, REEF Evaluator, REEF Examples
• Labels: cleanup exit logging threads todo
• Assignee: Sergiy Matusevych
• Reporter: Sergiy Matusevych
• Created: 28/Mar/17 18:57
• Updated: 29/Mar/17 19:19
• Resolved: 29/Mar/17 19:19

Description

As per REEF-1715, REEF processes should exit cleanly without explicitly calling System.exit(). We need to make sure that each process calls System.exit() at the end, and mark all remaining System.exit() lines with proper TODO comments. We also have to log the remaining running threads for debugging purposes.

Issue Links

• relates to: REEF-1715 Remove System.exit() at the end of the REEF launcher