When using ephemeral disks instances are ending up in error state if asking to format with xfs.
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| fault | {u'message': u"Unexpected error while running command.\nCommand: mkfs -t xfs -L ephemeral0 /var/lib/nova/instances/_base/ephemeral_1_0706d66\nExit code: 1\nStdout: u''\nStderr: u'mkfs.xfs: No such file or directory\\n'", u'code': 500, u'details': u'Traceback (most recent call last):\n File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 1858, in _do_build_and_run_instance\n filter_properties, request_spec)\n File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 2142, in _build_and_run_instance\n instance_uuid=instance.uuid, reason=six.text_type(e))\nRescheduledException: Build of instance 194a0199-5b34-468e-8ae6-c87cd22afdf8 was re-scheduled: Unexpected error while running command.\nCommand: mkfs -t xfs -L ephemeral0 /var/lib/nova/instances/_base/ephemeral_1_0706d66\nExit code: 1\nStdout: u\'\'\nStderr: u\'mkfs.xfs: No such file or directory\\n\'\n', u'created': u'2019-10-23T11:48:10Z'} |
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I noticed that the issue occurred only on the first we are trying to spawn the instance on a specific hypervisor.
After investigation the mkfs.xfs binary is missing in the rhosp13/openstack-nova-compute docker image leading in the error reported in this case.
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mkfs.xfs: No such file or directory
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If we do the same with ext4 we don't have the issue. Also if I look in the nova-compute docker, there is no mkfs.xfs but there is a mkfs.ext4
e.g.
nova --debug boot --poll --nic net-id=728c92e2-954c-4e10-9bf1-e67ee6265743 --flavor acs.small --image circos --ephemeral size=1,format=xfs --availability-zone tu-mec-3e:ciahob2ck37c018.tu-mec-3.cloud.redhat.net test-ephemeral
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