Public bug reported:
During the evacuation of vm from the down compute node, it may happen
that when port will be DOWN, DHCP agent will update port and send info
to the neutron server before L2 (ovs) agent on the new compute node will
do it. Because of that when L2 agent will report port is UP on the node,
notification to nova will not be send as port status was already ACTIVE
(changed when DHCP agent sent it's info that port is configured).
Finally VM will end up in ERROR state as nova-compute will timeout while
waiting for the notification from neutron.
** Affects: neutron
Importance: Undecided
Assignee: Slawek Kaplonski (slaweq)
Status: Confirmed
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1982367
Title:
Race condition between DHCP and L2 agent during evacuate vms may cause
VM ends up in ERROR state
Status in neutron:
Confirmed
Bug description:
During the evacuation of vm from the down compute node, it may happen
that when port will be DOWN, DHCP agent will update port and send info
to the neutron server before L2 (ovs) agent on the new compute node
will do it. Because of that when L2 agent will report port is UP on
the node, notification to nova will not be send as port status was
already ACTIVE (changed when DHCP agent sent it's info that port is
configured). Finally VM will end up in ERROR state as nova-compute
will timeout while waiting for the notification from neutron.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1982367/+subscriptions
--
Mailing list: https://launchpad.net/~yahoo-eng-team
Post to : yahoo-eng-team@lists.launchpad.net
Unsubscribe : https://launchpad.net/~yahoo-eng-team
More help : https://help.launchpad.net/ListHelp
