cinder-backup: incorrect NFS mount options

[Stanislav Kolenkin]

In /etc/cinder/cinder.conf
[DEFAULT]
backup_driver=cinder.backup.drivers.nfs
backup_share=10.10.10.10:/vol_backup

2016-08-05 14:54:59.757 30587 ERROR oslo_messaging.rpc.dispatcher [req-ed426f29-a322-422a-bc89-bfc424062841 - - - - -] Exception during message handling: NFS mount failed for share 10.10.10.10:/vol_backup. Error - {'pnfs': u"Unexpected error while running command.\nCommand: sudo cinder-rootwrap /etc/cinder/rootwrap.conf mount -t nfs -o vers=4,minorversion=1 10.10.10.10:/vol_backup /var/lib/cinder/back
up_mount/56577eeb72cbf65131d5645e9702016e\nExit code: 32\nStdout: u''\nStderr: u'mount.nfs: Protocol not supported\\n'", 'nfs': u"Unexpected error while running command.\nCommand: sudo cinder-rootwrap /
etc/cinder/rootwrap.conf mount -t nfs -o {} 10.10.10.10:/vol_backup /var/lib/cinder/backup_mount/56577eeb72cbf65131d5645e9702016e\nExit code: 32\nStdout: u''\nStderr: u'mount.nfs: an incorrect mount opt
ion was specified\\n'"}

root@node-1:~# mount -t nfs -o {} 172.18.52.241:/vol_nova /var/lib/cinder/backup_mount/56577eeb72cbf65131d5645e9702016e
mount.nfs: an incorrect mount option was specified

After that I have added options 'backup_mount_options='vers=3'' in config file /etc/cinder/cinder.conf and now mount works fine.

[Ivan Kolodyazhny (e0ne)]

Upstream bug: https://launchpad.net/bugs/1529566

[Ivan Kolodyazhny (e0ne)]

Patch for MOS 8 https://review.fuel-infra.org/24806 merged

[Sofiia Andriichenko (sandriichenko)]

verified on 9.1 snapshot #251

[Vadim Rovachev (vrovachev)]

We have not possibility to check this patch. We checked that code from patch contains in MU3 packages.