[Bug 1452641] Re: Static Ceph mon IP addresses in connection_info can prevent VM startup
Ubuntu Foundations Team Bug Bot
1452641 at bugs.launchpad.net
Mon Jun 11 16:21:20 UTC 2018
The attachment "virt/libvirt/migration.py patch" seems to be a patch.
If it isn't, please remove the "patch" flag from the attachment, remove
the "patch" tag, and if you are a member of the ~ubuntu-reviewers,
unsubscribe the team.
[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]
** Tags added: patch
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https://bugs.launchpad.net/bugs/1452641
Title:
Static Ceph mon IP addresses in connection_info can prevent VM startup
Status in OpenStack Compute (nova):
Confirmed
Status in nova package in Ubuntu:
New
Bug description:
The Cinder rbd driver extracts the IP addresses of the Ceph mon servers from the Ceph mon map when the instance/volume connection is established. This info is then stored in nova's block-device-mapping table and is never re-validated down the line.
Changing the Ceph mon servers' IP adresses will prevent the instance from booting as the stale connection info will enter the instance's XML. One idea to fix this would be to use the information from ceph.conf, which should be an alias or a loadblancer, directly.
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