Public bug reported:
Running OpenStack Stable/Liberty on CentOS 7.1.
The volume migration between Cinder hosts does not work when invoked via
Horizon (Pop-up shows: "Error: Failed to migrate volume.").
The Volume migration invoked via command line however works fine.
In /var/log/httpd/error_log the following messages can be found on every
attempt to migrate a volume via Dashboard:
[:error] [pid 4111] Recoverable error: migrate_volume() takes exactly 5
arguments (4 given)
The error presumably comes from /usr/lib/python2.7/site-
packages/cinderclient/v2/volumes.py at line 578.
The 'migrate_volume' method there expects all arguments as positional
and the 'lock_volume' var seems not being provided in the case when
migration invoked in Horizon.
Making 'lock_volume' a kwarg with False value as default fixes the issue and
does not break the original CLI behavior. I.e. when volume migration invoked
via CLI the lock_volume will be False, unless the respective flag was
explicitly given.
The volume migration invoked via Horizon with this change will now work, but
volume cannot be 'locked' during migration. The respective functionality seems
to be not yet fully integrated in Horizon -> there is even no check box in the
frontend yet and I could not find blueprints proposing those changes..
So, attached patch is a simple workaround rather than a solution, it
allows run volume migrations via Horizon, however with no volume
locking.
My setup includes 2 Cinder Storage nodes (LVM/iSCSI) , where one is also a
controller (i.e. with cinder-api and cinder-scheduler).
The versions are as follows:
openstack-dashboard 1:8.0.0-1.el7
openstack-dashboard-theme 1:8.0.0-1.el7
openstack-cinder 1:7.0.1-1.el7
python-cinder 1:7.0.1-1.el7
python-cinderclient 1.4.0-1.el7
** Affects: horizon
Importance: Undecided
Status: New
** Tags: migration volume
** Patch added: "Sets 'lock_volume' to False, unless other given"
https://bugs.launchpad.net/bugs/1533663/+attachment/4549244/+files/cinder_client_v2_volumes.patch
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https://bugs.launchpad.net/bugs/1533663
Title:
Volume migration works only via CLI
Status in OpenStack Dashboard (Horizon):
New
Bug description:
Running OpenStack Stable/Liberty on CentOS 7.1.
The volume migration between Cinder hosts does not work when invoked via
Horizon (Pop-up shows: "Error: Failed to migrate volume.").
The Volume migration invoked via command line however works fine.
In /var/log/httpd/error_log the following messages can be found on
every attempt to migrate a volume via Dashboard:
[:error] [pid 4111] Recoverable error: migrate_volume() takes exactly
5 arguments (4 given)
The error presumably comes from /usr/lib/python2.7/site-
packages/cinderclient/v2/volumes.py at line 578.
The 'migrate_volume' method there expects all arguments as positional
and the 'lock_volume' var seems not being provided in the case when
migration invoked in Horizon.
Making 'lock_volume' a kwarg with False value as default fixes the issue and
does not break the original CLI behavior. I.e. when volume migration invoked
via CLI the lock_volume will be False, unless the respective flag was
explicitly given.
The volume migration invoked via Horizon with this change will now work, but
volume cannot be 'locked' during migration. The respective functionality seems
to be not yet fully integrated in Horizon -> there is even no check box in the
frontend yet and I could not find blueprints proposing those changes..
So, attached patch is a simple workaround rather than a solution, it
allows run volume migrations via Horizon, however with no volume
locking.
My setup includes 2 Cinder Storage nodes (LVM/iSCSI) , where one is also a
controller (i.e. with cinder-api and cinder-scheduler).
The versions are as follows:
openstack-dashboard 1:8.0.0-1.el7
openstack-dashboard-theme 1:8.0.0-1.el7
openstack-cinder 1:7.0.1-1.el7
python-cinder 1:7.0.1-1.el7
python-cinderclient 1.4.0-1.el7
To manage notifications about this bug go to:
https://bugs.launchpad.net/horizon/+bug/1533663/+subscriptions
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