[REEF-1423] Tasks are not disposed after they are closed

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.16
• Labels: FT
• Assignee: Julia Wang
• Reporter: Julia Wang
• Created: 06/Jun/16 22:55
• Updated: 18/Jun/16 00:54
• Resolved: 18/Jun/16 00:54

Description

Currently if a running task is closed by receiving a close event from driver, or closed from context before the task is returned from Call(), Task.Dispose() is not called. This causes unreleased resource, especially for group communication and IMRU cases. If we would like to resubmit a task on an existing context, the existing platform is not cleaned up, causing some issues.

Issue Links

• blocks: REEF-1223 IMRU Fault Tolerance - restart failed evaluators