Public bug reported:
In Pike from Cloud Archive, Live Block Migrations fail:
Error updating resources for node compute1.: InvalidDiskInfo: Disk info file is
invalid: qemu-img failed to execute on
/var/lib/nova/instances/ccca487b-d5db-4324-81fb-2665e60da038/disk : Unexpected
error while running command.
Command: /usr/bin/python -m oslo_concurrency.prlimit --as=1073741824 --cpu=30
-- env LC_ALL=C LANG=C qemu-img info
/var/lib/nova/instances/ccca487b-d5db-4324-81fb-2665e60da038/disk
Exit code: 1
Stdout: u''
Stderr: u'qemu-img: Could not open
\'/var/lib/nova/instances/ccca487b-d5db-4324-81fb-2665e60da038/disk\': Failed
to get shared "write" lock\nIs another process using the image?\n'
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager Traceback (most recent
call last):
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 6629, in
update_available_resource_for_node
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager
rt.update_available_resource(context, nodename)
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/compute/resource_tracker.py", line 641,
in update_available_resource
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager resources =
self.driver.get_available_resource(nodename)
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 5831, in
get_available_resource
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager
disk_over_committed = self._get_disk_over_committed_size_total()
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 7330, in
_get_disk_over_committed_size_total
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager config,
block_device_info)
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 7248, in
_get_instance_disk_info_from_config
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager backing_file =
libvirt_utils.get_disk_backing_file(path)
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/virt/libvirt/utils.py", line 200, in
get_disk_backing_file
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager backing_file =
images.qemu_img_info(path, format).backing_file
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager File
"/usr/lib/python2.7/dist-packages/nova/virt/images.py", line 72, in
qemu_img_info
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager raise
exception.InvalidDiskInfo(reason=msg)
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager InvalidDiskInfo: Disk
info file is invalid: qemu-img failed to execute on
/var/lib/nova/instances/ccca487b-d5db-4324-81fb-2665e60da038/disk : Unexpected
error while running command.
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager Command:
/usr/bin/python -m oslo_concurrency.prlimit --as=1073741824 --cpu=30 -- env
LC_ALL=C LANG=C qemu-img info
/var/lib/nova/instances/ccca487b-d5db-4324-81fb-2665e60da038/disk
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager Exit code: 1
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager Stdout: u''
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager Stderr: u'qemu-img:
Could not open
\'/var/lib/nova/instances/ccca487b-d5db-4324-81fb-2665e60da038/disk\': Failed
to get shared "write" lock\nIs another process using the image?\n'
2017-09-18 19:55:55.408 11607 ERROR nova.compute.manager
2017-09-18 19:56:44.775 11607 INFO nova.compute.manager
[req-b6b3e84d-88fd-4052-9e56-bc89a1739ca3 3d4ca720acb84ba19cbbc7d5042d1f56
914a8d5ddac24f1c9b74e646633bab1c - default default] [instance:
ccca487b-d5db-4324-81fb-2665e60da038] Terminating instance
Maybe it is not a nova, but qemu issue.
** Affects: nova (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1718133
Title:
Live block migration in Pike fails due to qemu-img
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