** Also affects: nova/pike
Importance: Undecided
Status: New
** Also affects: nova/queens
Importance: Undecided
Status: New
** Also affects: nova/rocky
Importance: Undecided
Status: New
** Changed in: nova/pike
Importance: Undecided => Low
** Changed in: nova/rocky
Importance: Undecided => Low
** Changed in: nova/pike
Status: New => Confirmed
** Changed in: nova/queens
Status: New => Confirmed
** Changed in: nova/rocky
Status: New => Confirmed
** Changed in: nova/queens
Importance: Undecided => Low
--
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/1770527
Title:
add volume fails over 26vols and returns 500 API error with libvirt
driver
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) pike series:
Confirmed
Status in OpenStack Compute (nova) queens series:
Confirmed
Status in OpenStack Compute (nova) rocky series:
Confirmed
Bug description:
Description
===========
openstack server add volume fails over 26vols
Steps to reproduce
==================
* I did execute this openstack command.
# create a instance with single volume named sles15rc
# openstack server add volume sles15rc vol2
# openstack server add volume sles15rc vol3
:
# openstack server add volume sles15rc vol26
# openstack server add volume sles15rc vol27
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/
and attach the Nova API log if possible.
<class 'NovaException_Remote'> (HTTP 500) (Request-ID:
req-d95fea94-31fe-4063-9262-a84088cbaf29)
#
Expected result
===============
This command will success.
# openstack server add volume sles15rc vol27
and instance will had '/dev/vdaa' device volumes.
Actual result
=============
# openstack server add volume sles15rc vol26
instance will get named /dev/vdz volume.
Next,
# openstack server add volume sles15rc vol27
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/
and attach the Nova API log if possible.
<class 'NovaException_Remote'> (HTTP 500) (Request-ID:
req-d95fea94-31fe-4063-9262-a84088cbaf29)
I did kvm based command, Its OK.
#virsh attach-device instance-0000001e ~/vol27.xml
#virsh attach-device instance-0000001e ~/vol28.xml
and instance will had a volumes, vdaa,vdab
It's nova limitation problem.
I made a concept blueprint.
https://blueprints.launchpad.net/nova/+spec/nova-improvement-of-maximum-attach-volumes-more-than-26-vols
Environment
===========
SOC7(Suse Openstack Cloud version 7 openstack-newton)
Logs & Configs
==============
Nova API returned this result.
NovaException_Remote: No free disk device names for prefix 'vd'
2018-05-11 08:51:11.602 3667 INFO nova.osapi_compute.wsgi.server
[req-6cf5fdbf-9681-445b-8117-a61acd4057f4 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b70
5d680487f6f19 - default default] 10.19.3.70 "POST
/v2.1/b516d75b77bf4dc2b705d680487f6f19/servers/6a324dc8-d2ea-4eba-9870-e2ada1cb2bf4/os-volume_attachments
HTT
P/1.1" status: 200 len: 522 time: 0.2834640
2018-05-11 08:51:11.716 3668 INFO nova.osapi_compute.wsgi.server [-]
127.0.0.1 "GET / HTTP/1.1" status: 200 len: 491 time: 0.0007210
2018-05-11 08:51:13.880 3668 INFO nova.api.openstack.wsgi
[req-c7fc0e7a-13ec-48e7-947c-cd22232aa31f 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b705d68048
7f6f19 - default default] HTTP exception thrown: Instance sles15rc could not
be found.
2018-05-11 08:51:13.881 3668 INFO nova.osapi_compute.wsgi.server
[req-c7fc0e7a-13ec-48e7-947c-cd22232aa31f 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b70
5d680487f6f19 - default default] 10.19.3.70 "GET
/v2.1/b516d75b77bf4dc2b705d680487f6f19/servers/sles15rc HTTP/1.1" status: 404
len: 432 time: 0.0449822
2018-05-11 08:51:13.887 3668 INFO nova.api.openstack.wsgi
[req-7cbf4817-8810-4c30-8e09-8b106f66dee4 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b705d68048
7f6f19 - default default] HTTP exception thrown: Instance sles15rc could not
be found.
2018-05-11 08:51:13.889 3668 INFO nova.osapi_compute.wsgi.server
[req-7cbf4817-8810-4c30-8e09-8b106f66dee4 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b70
5d680487f6f19 - default default] 10.19.3.70 "GET
/v2.1/b516d75b77bf4dc2b705d680487f6f19/servers/sles15rc HTTP/1.1" status: 404
len: 432 time: 0.0053861
2018-05-11 08:51:13.929 3668 INFO nova.osapi_compute.wsgi.server
[req-40067327-b2a6-4194-acc6-17696377d123 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b70
5d680487f6f19 - default default] 10.19.3.70 "GET
/v2.1/b516d75b77bf4dc2b705d680487f6f19/servers?name=sles15rc HTTP/1.1" status:
200 len: 687 time: 0.0372620
2018-05-11 08:51:14.096 3668 INFO nova.osapi_compute.wsgi.server
[req-4a17ff34-f457-4e4b-8975-ad9fafa2e635 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b70
5d680487f6f19 - default default] 10.19.3.70 "GET
/v2.1/b516d75b77bf4dc2b705d680487f6f19/servers/6a324dc8-d2ea-4eba-9870-e2ada1cb2bf4
HTTP/1.1" status: 200 len:
3110 time: 0.1642580
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
[req-d95fea94-31fe-4063-9262-a84088cbaf29 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b70
5d680487f6f19 - default default] Unexpected exception in API method
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions Traceback
(most recent call last):
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/api/openstack/extensions.py", line 338,
in wrapp
ed
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
f(*args, **kwargs)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/api/validation/__init__.py", line 73, in
wrapper
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
func(*args, **kwargs)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/api/openstack/compute/volumes.py", line
325, in
create
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
volume_id, device)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/api.py", line 166, in inner
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
function(self, context, instance, *args, **kwargs)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/api.py", line 147, in inner
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
f(self, context, instance, *args, **kw)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/api.py", line 3518, in
attach_volume
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
disk_bus, device_type)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/api.py", line 3455, in
_attach_volume
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
device_type=device_type)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/api.py", line 3437, in
_create_volume_bd
m
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
device_type=device_type)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/rpcapi.py", line 926, in
reserve_block_d
evice_name
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
cctxt.call(ctxt, 'reserve_block_device_name', **kw)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 169, in
call
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
retry=self.retry)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 97, in
_send
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
timeout=timeout, retry=retry)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line
584, in send
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
retry=retry)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line
575, in _send
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions raise
result
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
NovaException_Remote: No free disk device names for prefix 'vd'
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions Traceback
(most recent call last):
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 133, in
_process_incoming
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions res =
self.dispatcher.dispatch(message)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 150,
in dispatch
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
self._do_dispatch(endpoint, method, ctxt, args)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 121,
in _do_dispatch
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions result =
func(ctxt, **new_args)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 75, in
wrapped
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
function_name, call_dict, binary)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
self.force_reraise()
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
six.reraise(self.type_, self.value, self.tb)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 66, in
wrapped
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
f(self, context, *args, **kw)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 188, in
decorated_function
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
LOG.warning(msg, e, instance=instance)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
self.force_reraise()
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
six.reraise(self.type_, self.value, self.tb)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 157, in
decorated_function
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
function(self, context, *args, **kwargs)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 216, in
decorated_function
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
kwargs['instance'], e, sys.exc_info())
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
self.force_reraise()
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
six.reraise(self.type_, self.value, self.tb)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 204, in
decorated_function
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
function(self, context, *args, **kwargs)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4683, in
reserve_block_device_name
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
do_reserve()
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py", line 271, in
inner
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions return
f(*args, **kwargs)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4677, in
do_reserve
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
instance, bdms, new_bdm)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1496, in
_get_device_name_for_instance
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
instance, bdms, block_device_obj)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line 7864, in
get_device_name_for_instance
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
block_device_obj, mapping=instance_info['mapping'])
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/virt/libvirt/blockinfo.py", line 394, in
get_info_from_bdm
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
device_name = find_disk_dev_for_disk_bus(padded_mapping, bdm_bus)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/site-packages/nova/virt/libvirt/blockinfo.py", line 197, in
find_disk_dev_for_disk_bus
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
dev_prefix)
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
NovaException: No free disk device names for prefix 'vd'
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.611 3668 ERROR nova.api.openstack.extensions
2018-05-11 08:51:14.613 3668 INFO nova.api.openstack.wsgi
[req-d95fea94-31fe-4063-9262-a84088cbaf29 2e2bd0e5b23c4665a5a78d710e2bbeb5
b516d75b77bf4dc2b705d680487f6f19 - default default] HTTP exception thrown:
Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and
attach the Nova API log if possible.
<class 'NovaException_Remote'>
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