See step 1, bullet 3 in the docs for setting up a compute node:
http://docs.openstack.org/havana/install-guide/install/yum/content/nova-
compute.html
"Synchronize from the controller node. Follow the instructions in the
section called “Network Time Protocol (NTP)”."
** Tags added: compute
** Changed in: nova
Status: New => Opinion
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1240045
Title:
Weak service state probe algorithm
Status in OpenStack Compute (Nova):
Opinion
Bug description:
I've faced with problem when service state of compute node got from
nova-manage service list command was XXX most time and some times it
was ok, despite in fact compute was ok all time. I found that it
coused by time shift between controller and compute node. I think that
is the bug to treat node as down basing only on update time, because
if we try to ping, probe tcp port or any other real ways to conversate
with node we will found it ok.
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