Failed to get image info

[zhangsong]

I try to use imageutils.QemuImgInfo class to get the virtual_size info of my image in cinder, but an error occured:

2015-11-12 12:46:49.123 32474 ERROR oslo_messaging.rpc.dispatcher raise ValueError(_('Invalid input value "%s".') % details)
2015-11-12 12:46:49.123 32474 ERROR oslo_messaging.rpc.dispatcher ValueError: Invalid input value "unavailable".

If I manually run the qemu_img info command, the virtual_size can be successfully acquired:

#qemu-img info sheepdog:volume-1af1afa0-7820-4063-9b90-4fa6161a74a9
image: sheepdog:volume-1af1afa0-7820-4063-9b90-4fa6161a74a9
file format: raw
virtual size: 10G (10737418240 bytes)
disk size: unavailable

# qemu-img info -f rbd rbd:data/foo
image: rbd:data/foo
file format: rbd
virtual size: 10G (10737418240 bytes)
disk size: unavailable
cluster_size: 4194304

This occured both in ceph and sheepdog. We can see that disk size info is unavailable, but the virtual size really exists. Why I can't get the 'virtual size' info which is really exist?

[OpenStack Infra (hudson-openstack)]

Change abandoned by zhangsong (<email address hidden>) on branch: master
Review: https://review.openstack.org/245241
Reason: This patch should be in openstack/oslo-incubator.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/245241
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=7cf6d6457c74a63ec7df282c402fcd31a60a12af
Submitter: Jenkins
Branch: master

commit 7cf6d6457c74a63ec7df282c402fcd31a60a12af
Author: zhangsong <email address hidden>
Date: Sat Nov 14 00:44:53 2015 +0800

    Fix the bug of can't get the desired image info

    When we use 'qemu-img info' command to get image info, some kinds
    of image may show an 'unavailable' disk size. For example:

    $qemu-img info sheepdog:volume-1af1afa0-7820-4063-9b90-4fa6161a74a9
    image: sheepdog:volume-1af1afa0-7820-4063-9b90-4fa6161a74a9
    file format: raw
    virtual size: 10G (10737418240 bytes)
    disk size: unavailable

    $qemu-img info -f rbd rbd:data/foo
    image: rbd:data/foo
    file format: rbd
    virtual size: 10G (10737418240 bytes)
    disk size: unavailable
    cluster_size: 4194304

    The current code didn't consider 'unavailable' size, and it will
    raise a ValueError in this case. This patch fixed this bug by
    adding the judgment of 'unavailable' size.

    Change-Id: Ic5f3b80e172baaafc07432319f8aa24bf117b392
    Closes-Bug: #1516083

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/cinder 8.0.0.0b1 development milestone.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/254605

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/255058

[OpenStack Infra (hudson-openstack)]

Change abandoned by zhangsong (<email address hidden>) on branch: stable/liberty
Review: https://review.openstack.org/254605

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/255058
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=59bb5c1f81a8b795b1f2f31babb047e6577e816e
Submitter: Jenkins
Branch: stable/liberty

commit 59bb5c1f81a8b795b1f2f31babb047e6577e816e
Author: zhangsong <email address hidden>
Date: Sat Nov 14 00:44:53 2015 +0800

    Fix the bug of can't get the desired image info

    When we use 'qemu-img info' command to get image info, some kinds
    of image may show an 'unavailable' disk size. For example:

    $qemu-img info sheepdog:volume-1af1afa0-7820-4063-9b90-4fa6161a74a9
    image: sheepdog:volume-1af1afa0-7820-4063-9b90-4fa6161a74a9
    file format: raw
    virtual size: 10G (10737418240 bytes)
    disk size: unavailable

    $qemu-img info -f rbd rbd:data/foo
    image: rbd:data/foo
    file format: rbd
    virtual size: 10G (10737418240 bytes)
    disk size: unavailable
    cluster_size: 4194304

    The current code didn't consider 'unavailable' size, and it will
    raise a ValueError in this case. This patch fixed this bug by
    adding the judgment of 'unavailable' size.

    Change-Id: Ic5f3b80e172baaafc07432319f8aa24bf117b392
    Closes-Bug: #1516083
    (cherry picked from commit 7cf6d6457c74a63ec7df282c402fcd31a60a12af)

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/oslo.utils 3.3.0 release.

[Thierry Carrez (ttx)]

This issue was fixed in the cinder 7.0.1 release (liberty).