Public bug reported:
It happens because qemu-img is called for directory instead of a file in case
of ploop images.
Backtrace is the following:
2015-12-17 15:46:37.917 ERROR oslo_service.periodic_task
[req-1309d92e-1c47-491f-9921-93553abb3430 None None] Error during
ComputeManager._run_image_cache_manager_pass
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Traceback (most
recent call last):
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/usr/lib/python2.7/site-packages/oslo_service/periodic_task.py", line 220, in
run_periodic_tasks
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task task(self,
context)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/compute/manager.py", line 6524, in
_run_image_cache_manager_pass
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
self.driver.manage_image_cache(context, filtered_instances)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/driver.py", line 6680, in manage_image_cache
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
self.image_cache_manager.update(context, all_instances)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/imagecache.py", line 664, in update
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
self._age_and_verify_cached_images(context, all_instances, base_dir)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/imagecache.py", line 600, in
_age_and_verify_cached_images
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
inuse_backing_images = self._list_backing_images()
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/imagecache.py", line 309, in
_list_backing_images
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task disk_path)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/utils.py", line 181, in get_disk_backing_file
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task backing_file
= images.qemu_img_info(path).backing_file
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/images.py", line 60, in qemu_img_info
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task 'qemu-img',
'info', path)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/utils.py", line 391, in execute
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task return
processutils.execute(*cmd, **kwargs)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py", line 312,
in execute
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
cmd=sanitized_cmd)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
ProcessExecutionError: Unexpected error while running command.
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Command: env
LC_ALL=C LANG=C qemu-img info
/vzt/stack/data/nova/instances/e9bd57ca-1210-461a-b12b-1c2b9788f106/disk
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Exit code: 1
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Stdout: u''
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Stderr:
u"qemu-img: Could not open
'/vzt/stack/data/nova/instances/e9bd57ca-1210-461a-b12b-1c2b9788f106/disk':
Could not read image for determining its format: Is a directory\n"
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1528638
Title:
nova manage_cache task periodic task fails for ploop images
Status in OpenStack Compute (nova):
New
Bug description:
It happens because qemu-img is called for directory instead of a file in case
of ploop images.
Backtrace is the following:
2015-12-17 15:46:37.917 ERROR oslo_service.periodic_task
[req-1309d92e-1c47-491f-9921-93553abb3430 None None] Error during
ComputeManager._run_image_cache_manager_pass
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Traceback
(most recent call last):
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/usr/lib/python2.7/site-packages/oslo_service/periodic_task.py", line 220, in
run_periodic_tasks
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task task(self,
context)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/compute/manager.py", line 6524, in
_run_image_cache_manager_pass
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
self.driver.manage_image_cache(context, filtered_instances)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/driver.py", line 6680, in manage_image_cache
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
self.image_cache_manager.update(context, all_instances)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/imagecache.py", line 664, in update
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
self._age_and_verify_cached_images(context, all_instances, base_dir)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/imagecache.py", line 600, in
_age_and_verify_cached_images
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
inuse_backing_images = self._list_backing_images()
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/imagecache.py", line 309, in
_list_backing_images
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task disk_path)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/libvirt/utils.py", line 181, in get_disk_backing_file
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
backing_file = images.qemu_img_info(path).backing_file
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/virt/images.py", line 60, in qemu_img_info
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
'qemu-img', 'info', path)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/vzt/stack/nova/nova/utils.py", line 391, in execute
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task return
processutils.execute(*cmd, **kwargs)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task File
"/usr/lib/python2.7/site-packages/oslo_concurrency/processutils.py", line 312,
in execute
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
cmd=sanitized_cmd)
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
ProcessExecutionError: Unexpected error while running command.
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Command: env
LC_ALL=C LANG=C qemu-img info
/vzt/stack/data/nova/instances/e9bd57ca-1210-461a-b12b-1c2b9788f106/disk
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Exit code: 1
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Stdout: u''
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task Stderr:
u"qemu-img: Could not open
'/vzt/stack/data/nova/instances/e9bd57ca-1210-461a-b12b-1c2b9788f106/disk':
Could not read image for determining its format: Is a directory\n"
2015-12-17 15:46:37.917 23014 ERROR oslo_service.periodic_task
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