Why the overcloud deployment fails with the following message ? Error: [Errno 18] Invalid cross-device link

Solution Verified - Updated -

Issue

  • Deployment fails, the followin error can be seen in the logs;
2019-01-31 14:30:27.119 3239 ERROR nova.scheduler.utils [req-f7c88bf9-000b-4195-8096-1bc4b15213a0 d72be189dcc140fa9d7f60bff6b6284c 9d93a3660a0c4aa1a2580998d0625d91 - - -] [instance: 9f316ec6-84fe-4ab5-ba68-601a0d3acc0c] Error from last host: oposkooond1.rouen.francetelecom.fr (node 11710db9-5ca8-4d62-b935-fb016a737ea9): [u'Traceback (most recent call last):\n', u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1787, in _do_build_and_run_instance\n    filter_properties)\n', u'  File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1985, in _build_and_run_instance\n    instance_uuid=instance.uuid, /)\n', u'RescheduledException: Build of instance 9f316ec6-84fe-4ab5-ba68-601a0d3acc0c was re-scheduled: Failed to provision instance 9f316ec6-84fe-4ab5-ba68-601a0d3acc0c:  ===>   Failed to deploy. Error: [Errno 18] Invalid cross-device link\n']   <=======

Environment

  • Director partition schema is as follows:
$ df -h
Filesystem                     Size  Used Avail Use% Mounted on
/dev/mapper/rootvg-root_lv     9.4G  6.9G  2.5G  74% /
devtmpfs                        16G     0   16G   0% /dev
tmpfs                           16G  4.0K   16G   1% /dev/shm
tmpfs                           16G  644K   16G   1% /run
tmpfs                           16G     0   16G   0% /sys/fs/cgroup
/dev/mapper/rootvg-var_lv       19G   19G  693M  97% /var
/dev/mapper/rootvg-home_lv     953M   33M  921M   4% /home
/dev/mapper/rootvg-mongodb_lv  5.0G  3.6G  1.5G  71% /var/lib/mongodb
/dev/mapper/rootvg-tmp_lv      953M   34M  920M   4% /tmp
/dev/vda1                      950M  232M  718M  25% /boot
/dev/mapper/rootvg-swift_lv    5.0G  3.4G  1.7G  68% /srv/node
/dev/mapper/rootvg-stack_lv    8.0G  6.0G  2.0G  76% /home/stack
tmpfs                          3.2G     0  3.2G   0% /run/user/1000
/dev/vdb1                      6.0G   33M  6.0G   1% /var/lib/ironic/master_images

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