Public bug reported:
i want to add a new driver to libvert .
this is my code in path /nova/virt/libvirt/volume/portworx.py
```
"""Libvirt volume driver for PX."""
from oslo_log import log as logging
import nova.conf
from nova.virt.libvirt.volume import volume as libvirt_volume
LOG = logging.getLogger(__name__)
CONF = nova.conf.CONF
class LibvirtPXVolumeDriver(libvirt_volume.LibvirtBaseVolumeDriver):
"""Class PX Libvirt volume Driver
Implements Libvirt part of volume driver for PX cinder driver.
Uses the PX connector from the os-brick projects
"""
def __init__(self, host):
super(LibvirtPXVolumeDriver, self).__init__(host,
is_block_dev=True)
def get_config(self, connection_info, disk_info):
conf = super(LibvirtPXVolumeDriver, self).get_config(
connection_info, disk_info)
conf.source_type = 'block'
conf.source_path = connection_info['data']['device_path']
return conf
def connect_volume(self, connection_info, disk_info):
LOG.warning("connect_volume_step1")
LOG.warning(connection_info)
LOG.warning(disk_info)
def disconnect_volume(self, connection_info, disk_dev):
super(LibvirtPXVolumeDriver, self).disconnect_volume(
connection_info, disk_dev)
```
/nova/virt/libvirt/driver.py
libvirt_volume_drivers = [
'iscsi=nova.virt.libvirt.volume.iscsi.LibvirtISCSIVolumeDriver',
'iser=nova.virt.libvirt.volume.iser.LibvirtISERVolumeDriver',
'local=nova.virt.libvirt.volume.volume.LibvirtVolumeDriver',
'fake=nova.virt.libvirt.volume.volume.LibvirtFakeVolumeDriver',
'rbd=nova.virt.libvirt.volume.net.LibvirtNetVolumeDriver',
'sheepdog=nova.virt.libvirt.volume.net.LibvirtNetVolumeDriver',
'nfs=nova.virt.libvirt.volume.nfs.LibvirtNFSVolumeDriver',
'smbfs=nova.virt.libvirt.volume.smbfs.LibvirtSMBFSVolumeDriver',
'aoe=nova.virt.libvirt.volume.aoe.LibvirtAOEVolumeDriver',
'glusterfs='
'nova.virt.libvirt.volume.glusterfs.LibvirtGlusterfsVolumeDriver',
'fibre_channel='
'nova.virt.libvirt.volume.fibrechannel.'
'LibvirtFibreChannelVolumeDriver',
'scality=nova.virt.libvirt.volume.scality.LibvirtScalityVolumeDriver',
'gpfs=nova.virt.libvirt.volume.gpfs.LibvirtGPFSVolumeDriver',
'quobyte=nova.virt.libvirt.volume.quobyte.LibvirtQuobyteVolumeDriver',
'hgst=nova.virt.libvirt.volume.hgst.LibvirtHGSTVolumeDriver',
'scaleio=nova.virt.libvirt.volume.scaleio.LibvirtScaleIOVolumeDriver',
'disco=nova.virt.libvirt.volume.disco.LibvirtDISCOVolumeDriver',
'vzstorage='
'nova.virt.libvirt.volume.vzstorage.LibvirtVZStorageVolumeDriver',
'px=nova.virt.libvirt.volume.portworx.LibvirtPXVolumeDriver',
]
```
when i attempt to attach px type volume
in nova-compute.log
2017-08-28 18:36:42.678 30277 ERROR nova.volume.cinder
[req-e4e24ac5-0503-49d5-ba7e-0f988f3f6e8a ac2829767bb4425595686664d1e87963
d4ebf82a1c8a43e1a08a264bb272a7f1 - - -] Initialize connection failed for volume
0bf12c1f-d153-4ece-b06d-53feedda6b99 on host alex-openstack-1. Error: The
server could not comply with the request since it is either malformed or
otherwise incorrect. (HTTP 400) (Request-ID:
req-36215f7e-d25d-4f2b-b8b0-eca21ff15279) Code: 400. Attempting to terminate
connection.
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager
[req-e4e24ac5-0503-49d5-ba7e-0f988f3f6e8a ac2829767bb4425595686664d1e87963
d4ebf82a1c8a43e1a08a264bb272a7f1 - - -] [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] Failed to attach
0bf12c1f-d153-4ece-b06d-53feedda6b99 at /dev/vdc
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] Traceback (most recent call last):
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4801, in
_attach_volume
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] do_check_attach=False,
do_driver_attach=True)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 48, in
wrapped
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] ret_val = method(obj, context, *args,
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 258, in
attach
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] connector)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 175, in wrapper
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5]
_reraise(exception.InvalidInput(reason=err_msg))
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 225, in _reraise
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] six.reraise(type(desired_exc),
desired_exc, sys.exc_info()[2])
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 167, in wrapper
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] res = method(self, ctx, *args,
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 189, in wrapper
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] res = method(self, ctx, volume_id,
*args, **kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 394, in
initialize_connection
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] exc.code if hasattr(exc, 'code') else
None)})
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] self.force_reraise()
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] six.reraise(self.type_, self.value,
self.tb)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 367, in
initialize_connection
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5]
context).volumes.initialize_connection(volume_id, connector)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 404, in
initialize_connection
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] {'connector': connector})
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 334, in
_action
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] resp, body =
self.api.client.post(url, body=body)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 167, in post
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] return self._cs_request(url, 'POST',
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 155, in
_cs_request
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] return self.request(url, method,
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 144, in request
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] raise exceptions.from_response(resp,
body)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] InvalidInput: Invalid input received: The
server could not comply with the request since it is either malformed or
otherwise incorrect. (HTTP 400) (Request-ID:
req-36215f7e-d25d-4f2b-b8b0-eca21ff15279)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5]
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
[req-e4e24ac5-0503-49d5-ba7e-0f988f3f6e8a ac2829767bb4425595686664d1e87963
d4ebf82a1c8a43e1a08a264bb272a7f1 - - -] Exception during message handling
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server Traceback (most
recent call last):
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 155, in
_process_incoming
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server res =
self.dispatcher.dispatch(message)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 222,
in dispatch
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self._do_dispatch(endpoint, method, ctxt, args)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 192,
in _do_dispatch
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server result =
func(ctxt, **new_args)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 75, in
wrapped
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
function_name, call_dict, binary)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 66, in
wrapped
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
f(self, context, *args, **kw)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 216, in
decorated_function
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
kwargs['instance'], e, sys.exc_info())
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 204, in
decorated_function
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
function(self, context, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4791, in
attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
do_attach_volume(context, instance, driver_bdm)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py", line 271, in
inner
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
f(*args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4789, in
do_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server bdm.destroy()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4786, in
do_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self._attach_volume(context, instance, driver_bdm)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4809, in
_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.volume_api.unreserve_volume(context, bdm.volume_id)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4801, in
_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
do_check_attach=False, do_driver_attach=True)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 48, in
wrapped
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server ret_val =
method(obj, context, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 258, in
attach
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server connector)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 175, in wrapper
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
_reraise(exception.InvalidInput(reason=err_msg))
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 225, in _reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(type(desired_exc), desired_exc, sys.exc_info()[2])
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 167, in wrapper
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server res =
method(self, ctx, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 189, in wrapper
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server res =
method(self, ctx, volume_id, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 394, in
initialize_connection
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server exc.code if
hasattr(exc, 'code') else None)})
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 367, in
initialize_connection
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
context).volumes.initialize_connection(volume_id, connector)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 404, in
initialize_connection
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server {'connector':
connector})
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 334, in
_action
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server resp, body =
self.api.client.post(url, body=body)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 167, in post
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self._cs_request(url, 'POST', **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 155, in
_cs_request
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self.request(url, method, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 144, in request
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server raise
exceptions.from_response(resp, body)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server InvalidInput:
Invalid input received: The server could not comply with the request since it
is either malformed or otherwise incorrect. (HTTP 400) (Request-ID:
req-36215f7e-d25d-4f2b-b8b0-eca21ff15279)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
** Affects: nova
Importance: Undecided
Status: New
--
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1713466
Title:
Initialize connection failed for volume
Status in OpenStack Compute (nova):
New
Bug description:
i want to add a new driver to libvert .
this is my code in path /nova/virt/libvirt/volume/portworx.py
```
"""Libvirt volume driver for PX."""
from oslo_log import log as logging
import nova.conf
from nova.virt.libvirt.volume import volume as libvirt_volume
LOG = logging.getLogger(__name__)
CONF = nova.conf.CONF
class LibvirtPXVolumeDriver(libvirt_volume.LibvirtBaseVolumeDriver):
"""Class PX Libvirt volume Driver
Implements Libvirt part of volume driver for PX cinder driver.
Uses the PX connector from the os-brick projects
"""
def __init__(self, host):
super(LibvirtPXVolumeDriver, self).__init__(host,
is_block_dev=True)
def get_config(self, connection_info, disk_info):
conf = super(LibvirtPXVolumeDriver, self).get_config(
connection_info, disk_info)
conf.source_type = 'block'
conf.source_path = connection_info['data']['device_path']
return conf
def connect_volume(self, connection_info, disk_info):
LOG.warning("connect_volume_step1")
LOG.warning(connection_info)
LOG.warning(disk_info)
def disconnect_volume(self, connection_info, disk_dev):
super(LibvirtPXVolumeDriver, self).disconnect_volume(
connection_info, disk_dev)
```
/nova/virt/libvirt/driver.py
libvirt_volume_drivers = [
'iscsi=nova.virt.libvirt.volume.iscsi.LibvirtISCSIVolumeDriver',
'iser=nova.virt.libvirt.volume.iser.LibvirtISERVolumeDriver',
'local=nova.virt.libvirt.volume.volume.LibvirtVolumeDriver',
'fake=nova.virt.libvirt.volume.volume.LibvirtFakeVolumeDriver',
'rbd=nova.virt.libvirt.volume.net.LibvirtNetVolumeDriver',
'sheepdog=nova.virt.libvirt.volume.net.LibvirtNetVolumeDriver',
'nfs=nova.virt.libvirt.volume.nfs.LibvirtNFSVolumeDriver',
'smbfs=nova.virt.libvirt.volume.smbfs.LibvirtSMBFSVolumeDriver',
'aoe=nova.virt.libvirt.volume.aoe.LibvirtAOEVolumeDriver',
'glusterfs='
'nova.virt.libvirt.volume.glusterfs.LibvirtGlusterfsVolumeDriver',
'fibre_channel='
'nova.virt.libvirt.volume.fibrechannel.'
'LibvirtFibreChannelVolumeDriver',
'scality=nova.virt.libvirt.volume.scality.LibvirtScalityVolumeDriver',
'gpfs=nova.virt.libvirt.volume.gpfs.LibvirtGPFSVolumeDriver',
'quobyte=nova.virt.libvirt.volume.quobyte.LibvirtQuobyteVolumeDriver',
'hgst=nova.virt.libvirt.volume.hgst.LibvirtHGSTVolumeDriver',
'scaleio=nova.virt.libvirt.volume.scaleio.LibvirtScaleIOVolumeDriver',
'disco=nova.virt.libvirt.volume.disco.LibvirtDISCOVolumeDriver',
'vzstorage='
'nova.virt.libvirt.volume.vzstorage.LibvirtVZStorageVolumeDriver',
'px=nova.virt.libvirt.volume.portworx.LibvirtPXVolumeDriver',
]
```
when i attempt to attach px type volume
in nova-compute.log
2017-08-28 18:36:42.678 30277 ERROR nova.volume.cinder
[req-e4e24ac5-0503-49d5-ba7e-0f988f3f6e8a ac2829767bb4425595686664d1e87963
d4ebf82a1c8a43e1a08a264bb272a7f1 - - -] Initialize connection failed for volume
0bf12c1f-d153-4ece-b06d-53feedda6b99 on host alex-openstack-1. Error: The
server could not comply with the request since it is either malformed or
otherwise incorrect. (HTTP 400) (Request-ID:
req-36215f7e-d25d-4f2b-b8b0-eca21ff15279) Code: 400. Attempting to terminate
connection.
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager
[req-e4e24ac5-0503-49d5-ba7e-0f988f3f6e8a ac2829767bb4425595686664d1e87963
d4ebf82a1c8a43e1a08a264bb272a7f1 - - -] [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] Failed to attach
0bf12c1f-d153-4ece-b06d-53feedda6b99 at /dev/vdc
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] Traceback (most recent call last):
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4801, in
_attach_volume
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] do_check_attach=False,
do_driver_attach=True)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 48, in
wrapped
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] ret_val = method(obj, context, *args,
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 258, in
attach
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] connector)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 175, in wrapper
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5]
_reraise(exception.InvalidInput(reason=err_msg))
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 225, in _reraise
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] six.reraise(type(desired_exc),
desired_exc, sys.exc_info()[2])
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 167, in wrapper
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] res = method(self, ctx, *args,
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 189, in wrapper
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] res = method(self, ctx, volume_id,
*args, **kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 394, in
initialize_connection
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] exc.code if hasattr(exc, 'code') else
None)})
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] self.force_reraise()
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] six.reraise(self.type_, self.value,
self.tb)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 367, in
initialize_connection
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5]
context).volumes.initialize_connection(volume_id, connector)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 404, in
initialize_connection
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] {'connector': connector})
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 334, in
_action
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] resp, body =
self.api.client.post(url, body=body)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 167, in post
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] return self._cs_request(url, 'POST',
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 155, in
_cs_request
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] return self.request(url, method,
**kwargs)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 144, in request
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] raise exceptions.from_response(resp,
body)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5] InvalidInput: Invalid input received: The
server could not comply with the request since it is either malformed or
otherwise incorrect. (HTTP 400) (Request-ID:
req-36215f7e-d25d-4f2b-b8b0-eca21ff15279)
2017-08-28 18:36:42.873 30277 ERROR nova.compute.manager [instance:
20c33d4d-d73b-4980-b9d8-be74cce859f5]
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
[req-e4e24ac5-0503-49d5-ba7e-0f988f3f6e8a ac2829767bb4425595686664d1e87963
d4ebf82a1c8a43e1a08a264bb272a7f1 - - -] Exception during message handling
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server Traceback (most
recent call last):
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 155, in
_process_incoming
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server res =
self.dispatcher.dispatch(message)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 222,
in dispatch
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self._do_dispatch(endpoint, method, ctxt, args)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 192,
in _do_dispatch
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server result =
func(ctxt, **new_args)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 75, in
wrapped
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
function_name, call_dict, binary)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 66, in
wrapped
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
f(self, context, *args, **kw)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 216, in
decorated_function
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
kwargs['instance'], e, sys.exc_info())
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 204, in
decorated_function
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
function(self, context, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4791, in
attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
do_attach_volume(context, instance, driver_bdm)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py", line 271, in
inner
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
f(*args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4789, in
do_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
bdm.destroy()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4786, in
do_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self._attach_volume(context, instance, driver_bdm)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4809, in
_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.volume_api.unreserve_volume(context, bdm.volume_id)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 4801, in
_attach_volume
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
do_check_attach=False, do_driver_attach=True)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 48, in
wrapped
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server ret_val =
method(obj, context, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/virt/block_device.py", line 258, in
attach
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server connector)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 175, in wrapper
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
_reraise(exception.InvalidInput(reason=err_msg))
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 225, in _reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(type(desired_exc), desired_exc, sys.exc_info()[2])
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 167, in wrapper
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server res =
method(self, ctx, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 189, in wrapper
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server res =
method(self, ctx, volume_id, *args, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 394, in
initialize_connection
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server exc.code if
hasattr(exc, 'code') else None)})
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
self.force_reraise()
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in
force_reraise
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
six.reraise(self.type_, self.value, self.tb)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/nova/volume/cinder.py", line 367, in
initialize_connection
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
context).volumes.initialize_connection(volume_id, connector)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 404, in
initialize_connection
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
{'connector': connector})
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/v2/volumes.py", line 334, in
_action
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server resp, body
= self.api.client.post(url, body=body)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 167, in post
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self._cs_request(url, 'POST', **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 155, in
_cs_request
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server return
self.request(url, method, **kwargs)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server File
"/usr/lib/python2.7/site-packages/cinderclient/client.py", line 144, in request
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server raise
exceptions.from_response(resp, body)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server InvalidInput:
Invalid input received: The server could not comply with the request since it
is either malformed or otherwise incorrect. (HTTP 400) (Request-ID:
req-36215f7e-d25d-4f2b-b8b0-eca21ff15279)
2017-08-28 18:36:42.979 30277 ERROR oslo_messaging.rpc.server
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