[YARN-7943] testCSReservationWithRootUnblocked() and testCSQueueBlocked() in TestCapacityScheduler are flaky

• Type: Task
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Component/s: capacity scheduler, test
• Labels: test
• Assignee: Unassigned
• Reporter: Tarun Parimi
• Created: 16/Feb/18 20:10
• Updated: 17/Feb/18 08:01

Description

testCSReservationWithRootUnblocked() and testCSQueueBlocked() test for the expected value of Used Resources in different queues after calling allocate() and CapacityScheduler.schedule(). 

If CapacityScheduler.schedule() gets executed more than a second after NodeAddedSchedulerEvent was handled, then the node will be skipped from scheduling. This results in test failure as the node resources will not be allocated and so the expected Used Resource value differs.