[FLINK-9910] Non-queued scheduling failure sometimes does not return the slot

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.5.1, 1.6.0, 1.7.0
• Fix Version/s: 1.5.2, 1.6.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 22/Jul/18 19:38
• Updated: 23/Jul/18 22:09
• Resolved: 23/Jul/18 22:09

Description

Similar to FLINK-9908, it can happen that in case of a non-queued scheduling failure a slot is not properly returned to the SlotPool. The reason for the failure seems to be the exceptional completion of the allocationFuture in Execution#scheduleForExecution.

Issue Links

• links to: GitHub Pull Request #6385