Bug 1100358

Summary:	can't attach a read only volume to an instance
Product:	Red Hat OpenStack	Reporter:	Stephen Gordon <sgordon>
Component:	openstack-nova	Assignee:	Russell Bryant <rbryant>
Status:	CLOSED ERRATA	QA Contact:	Yogev Rabl <yrabl>
Severity:	high	Docs Contact:
Priority:	high
Version:	5.0 (RHEL 7)	CC:	dron, gszasz, ndipanov, nlevinki, slong, vpopovic, yeylon, yrabl
Target Milestone:	rc
Target Release:	5.0 (RHEL 7)
Hardware:	x86_64
OS:	Linux
Whiteboard:	storage
Fixed In Version:	openstack-nova-2014.1-11.el7ost	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1087030	Environment:
Last Closed:	2014-07-24 17:23:00 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1087030
Bug Blocks:

Description Stephen Gordon 2014-05-22 16:09:41 UTC

+++ This bug was initially created as a clone of Bug #1087030 +++

Description of problem:

An attachment of a read only volume to an instance failed. The openstack was installed as AIO, Cinder was configured with Netapp back end. The following error from the nova compute log: 

014-04-13 11:28:17.838 25176 ERROR oslo.messaging.rpc.dispatcher [-] Exception during message handling: Invalid input received: Invalid attaching mode 'rw' for volume 3f5828e1-77b2-4302-9cdf-486f7
0834c31.
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 133, in _dispatch_and_reply
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 176, in _dispatch
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line 122, in _do_dispatch
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 360, in decorated_function
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/exception.py", line 88, in wrapped
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     payload)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/exception.py", line 71, in wrapped
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return f(self, context, *args, **kw)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 244, in decorated_function
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     pass
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 230, in decorated_function
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 272, in decorated_function
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     e, sys.exc_info())
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 259, in decorated_function
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3876, in attach_volume
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     bdm.destroy(context)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3873, in attach_volume
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return self._attach_volume(context, instance, driver_bdm)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3894, in _attach_volume
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     self.volume_api.unreserve_volume(context, bdm.volume_id)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/openstack/common/excutils.py", line 68, in __exit__
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 3886, in _attach_volume
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     do_check_attach=False, do_driver_attach=True)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 44, in wrapped
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     ret_val = method(obj, context, *args, **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 251, in attach
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     instance['uuid'], self['mount_device'])
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 174, in wrapper
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     res = method(self, ctx, volume_id, *args, **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 263, in attach
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     mountpoint)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/cinderclient/v1/volumes.py", line 266, in attach
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     'mode': mode})
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/cinderclient/v1/volumes.py", line 250, in _action
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return self.api.client.post(url, body=body)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 210, in post
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     return self._cs_request(url, 'POST', **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 174, in _cs_request
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     **kwargs)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 157, in request
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher     raise exceptions.from_response(resp, body)
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher InvalidInput: Invalid input received: Invalid attaching mode 'rw' for volume 3f5828e1-77b2-4302-9cdf-486f70834c31.
2014-04-13 11:28:17.838 25176 TRACE oslo.messaging.rpc.dispatcher 
2014-04-13 11:28:17.858 25176 ERROR oslo.messaging._drivers.common [-] Returning exception Invalid input received: Invalid attaching mode 'rw' for volume 3f5828e1-77b2-4302-9cdf-486f70834c31. to caller

Version-Release number of selected component (if applicable):
openstack-nova-conductor-2014.1-0.13.b3.el7.noarch
openstack-swift-object-1.12.0-1.el7.noarch
openstack-glance-2014.1-0.4.b3.el7.noarch
openstack-packstack-puppet-2014.1.1-0.7.dev1018.el7.noarch
openstack-nova-cert-2014.1-0.13.b3.el7.noarch
python-django-openstack-auth-1.1.4-1.el7.noarch
openstack-swift-1.12.0-1.el7.noarch
openstack-keystone-2014.1-0.4.b3.el7.noarch
openstack-utils-2013.2-3.p1.el7.noarch
openstack-nova-api-2014.1-0.13.b3.el7.noarch
openstack-nova-compute-2014.1-0.13.b3.el7.noarch
openstack-nova-novncproxy-2014.1-0.13.b3.el7.noarch
openstack-dashboard-2014.1-0.5.b3.el7.noarch
openstack-swift-account-1.12.0-1.el7.noarch
openstack-swift-proxy-1.12.0-1.el7.noarch
openstack-puppet-modules-2014.1-5.3.el7.noarch
openstack-cinder-2014.1-0.6.b3.el7.noarch
openstack-nova-common-2014.1-0.13.b3.el7.noarch
openstack-nova-console-2014.1-0.13.b3.el7.noarch
openstack-nova-network-2014.1-0.13.b3.el7.noarch
openstack-swift-container-1.12.0-1.el7.noarch
openstack-packstack-2014.1.1-0.7.dev1018.el7.noarch
openstack-nova-scheduler-2014.1-0.13.b3.el7.noarch
openstack-swift-plugin-swift3-1.7-3.el7.noarch

How reproducible:
100%

Steps to Reproduce:
1. Create a volume from a qcow2 image.
2. Attach the volume to an instance and make changes.
3. Detach the volume from the instance.
4. Set the volume as read only.
5. Attach the volume to an instance.

Actual results:
the attachment fails.

Expected results:
the attachment should succeed, but the volume cannot be changed.

Additional info:

Comment 1 Stephen Gordon 2014-05-27 14:19:10 UTC

Looks like fix was merged upstream *just* after Icehouse GA.

Comment 2 Russell Bryant 2014-06-05 21:03:03 UTC

Posted a backport upstream for this.  https://review.openstack.org/98253

Comment 6 Yogev Rabl 2014-07-22 08:27:16 UTC

verified in: 
python-cinderclient-1.0.9-1.el7ost.noarch
openstack-nova-scheduler-2014.1.1-1.el7ost.noarch
openstack-cinder-2014.1.1-1.el7ost.noarch
python-nova-2014.1.1-1.el7ost.noarch
openstack-nova-conductor-2014.1.1-1.el7ost.noarch
openstack-nova-cert-2014.1.1-1.el7ost.noarch
openstack-nova-common-2014.1.1-1.el7ost.noarch
openstack-nova-compute-2014.1.1-1.el7ost.noarch
openstack-nova-api-2014.1.1-1.el7ost.noarch
openstack-nova-novncproxy-2014.1.1-1.el7ost.noarch
python-cinder-2014.1.1-1.el7ost.noarch
openstack-nova-console-2014.1.1-1.el7ost.noarch
python-novaclient-2.17.0-2.el7ost.noarch

Comment 8 errata-xmlrpc 2014-07-24 17:23:00 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2014-0940.html