We should pass in he parameters multipath when migrating volume

[Yafei Yu]

The version is Mitaka and multipath is enabled.
Migrate a volume from FUJITSU to IBM storage.
Target portals is 199.3.145.251:3260 and 199.1.145.251:3260, but 199.3.145.251 is unreachable.
Cinder volume log is:
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager [req-05e33820-ae85-4ed6-9725-e29f6bc26c3e - - - - -] Failed to copy volume fead3f91-ac45-4920-a564-869d4d12d7a5 to ed406142-ee2f-4e3d-9b85-3293b4bbc682
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager Traceback (most recent call last):
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 1967, in _migrate_volume_generic
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager self._copy_volume_data(ctxt, volume, new_volume, remote='dest')
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 1872, in _copy_volume_data
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager properties, remote=dest_remote)
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220, in __exit__
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager self.force_reraise()
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196, in force_reraise
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager six.reraise(self.type_, self.value, self.tb)
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 1867, in _copy_volume_data
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager remote=src_remote)
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 1830, in _attach_volume
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager return self._connect_device(conn)
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 1795, in _connect_device
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager vol_handle = connector.connect_volume(conn['data'])
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py", line 271, in inner
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager return f(*args, **kwargs)
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/os_brick/initiator/connector.py", line 969, in connect_volume
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager connection_properties)
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager File "/usr/lib/python2.7/site-packages/os_brick/initiator/connector.py", line 703, in _get_potential_volume_paths
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager target_portal=connection_properties['target_portal'])
2017-11-27 13:51:17.179 26031 ERROR cinder.volume.manager TargetPortalNotFound: Unable to find target portal 199.3.145.251:3260.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/524536

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/524536
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=a045c0f28a31231fc31dc3f4452b19f3cee3cd4f
Submitter: Zuul
Branch: master

commit a045c0f28a31231fc31dc3f4452b19f3cee3cd4f
Author: yuyafei <email address hidden>
Date: Fri Dec 1 08:35:28 2017 +0000

    Pass in the parameters multipath when migrating volume

    When multipath is enabled, we do not pass in parameters
    multipath when migrating volume.

    Change-Id: Ie6a8136835550d1cec1bc0ccd9c30c83e59580d4
    Closes-Bug: #1735674

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cinder 12.0.0.0b3 development milestone.