It seems the problem is still happening even after the fix merged to master.
Here is a recent appearance https://7ad29d1b700c1da60ae0-1bae5319fe4594ade335a46ad1c3bcc9.ssl.cf2.rackcdn.com/717083/5/check/neutron-grenade-multinode/2be9497/logs/screen-n-sch.txt
It seems the problem is still happening even after the fix merged to master.
Here is a recent appearance https:/ /7ad29d1b700c1d a60ae0- 1bae5319fe4594a de335a46ad1c3bc c9.ssl. cf2.rackcdn. com/717083/ 5/check/ neutron- grenade- multinode/ 2be9497/ logs/screen- n-sch.txt