Reviewed: https://review.openstack.org/265651
Committed:
https://git.openstack.org/cgit/openstack/nova/commit/?id=2d03bb97a309341c5a2bcc978220cd5af5f32179
Submitter: Jenkins
Branch: master
commit 2d03bb97a309341c5a2bcc978220cd5af5f32179
Author: Belmiro Moreira <moreira.belmiro.email.li...@gmail.com>
Date: Sun Jan 10 16:51:06 2016 +0100
Fix cell capacity when compute nodes are down
Available resources from compute nodes that are not sending
service heartbeats (not alive) should not be considered in cell
capacity updates.
Closes Bug: #1532562
Change-Id: I0a456053d9c5e5fba39eb92f4820003e86d7a205
** Changed in: nova
Status: In Progress => Fix Released
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1532562
Title:
Cell capacities updates include available resources of compute nodes
"down"
Status in OpenStack Compute (nova):
Fix Released
Bug description:
If a child cell has compute nodes without a heartbeat update
but enabled (XXX state with "nova-manage service list") the child cell
continues to consider the available resources of these compute nodes
when updating the cell capacity.
This can be problematic when having several cells and trying to fill them
completely.
Requests are sent to the cell that can fit more instances of the requested
type however when compute nodes are "down" the requests will fail with "No
valid host" in the cell.
When updating the cell capacity the "disabled" compute nodes are
excluded. This should also happen if the compute node didn't have a
heartbeat update during the "CONF.service_down_time".
How to reproduce:
1) Have a cell environment with 2 child cells (A and B).
2) Have nova-cells running in "debug". Confirm that the "Received capacities
from child cell" A and B (in top nova-cell log) matches the number of available
resources.
4) Stop some compute nodes in cell A.
5) Confirm that the "Received capacities from child cell A" don't change.
6) Cell scheduler can send requests to cell A that can fail with "No valid
host".
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1532562/+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
