[FLINK-6434] There may be allocatedSlots leak in SlotPool

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: Runtime / Coordination
• Labels: flip-6
• Assignee: shuai.xu
• Reporter: shuai.xu
• Created: 03/May/17 07:35
• Updated: 28/Feb/19 14:12
• Resolved: 10/Nov/17 10:24

Description

If the call allocateSlot() from Execution to Slotpool timeout, the job will begin to failover, but the pending request are still in SlotPool, if then a new slot register to SlotPool, it may be fulfill the outdated pending request and be added to allocatedSlots, but it will never be used and will never be recycled.

Issue Links

• breaks: FLINK-4344 Implement new JobManager
• links to: GitHub Pull Request #4937