| Summary: | Backport option "--output=json|human" to qemu-img info command | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Xu Tian <xutian> |
| Component: | qemu-kvm | Assignee: | Paolo Bonzini <pbonzini> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | high | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 6.5 | CC: | acathrow, areis, bsarathy, juzhang, mkenneth, pbonzini, qzhang, sluo, tlavigne, virt-maint |
| Target Milestone: | rc | Keywords: | TestBlocker |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-0.12.1.2-2.409.el6 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-11-21 06:02:31 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Bug Depends On: | |||
| Bug Blocks: | 914802, 1000882 | ||
Verify this feature with qemu-img-0.12.1.2-2.409.el6.x86_64, all test pass
1. check image file
qemu-img create -f qcow2 test.img 1G
Formatting 'test.img', fmt=qcow2 size=1073741824 encryption=off cluster_size=65536
qemu-img info --output=json ./test.img
{
"virtual-size": 1073741824,
"filename": "./test.img",
"cluster-size": 65536,
"format": "qcow2",
"actual-size": 139264,
"dirty-flag": false
}
2. check image with internal snapshot
qemu-img snapshot -c sn1 test.img
qemu-img info --output=json ./test.img
{
"snapshots": [
{
"vm-clock-nsec": 0,
"name": "sn1",
"date-sec": 1381232657,
"date-nsec": 430549000,
"vm-clock-sec": 0,
"id": "1",
"vm-state-size": 0
}
],
"virtual-size": 1073741824,
"filename": "./test.img",
"cluster-size": 65536,
"format": "qcow2",
"actual-size": 151552,
"dirty-flag": false
}
3. check image file with snapshot file
qemu-img create -F qcow2 -b ./test.img -f qcow2 sn1
Formatting 'sn1', fmt=qcow2 size=1073741824 backing_file='./test.img' backing_fmt='qcow2' encryption=off cluster_size=65536
qemu-img info --output=json ./test.img
{
"snapshots": [
{
"vm-clock-nsec": 0,
"name": "sn1",
"date-sec": 1381232657,
"date-nsec": 430549000,
"vm-clock-sec": 0,
"id": "1",
"vm-state-size": 0
}
],
"virtual-size": 1073741824,
"filename": "./test.img",
"cluster-size": 65536,
"format": "qcow2",
"actual-size": 151552,
"dirty-flag": false
}
4. check snapshot file info
qemu-img info --output=json ./sn1
{
"backing-filename-format": "qcow2",
"virtual-size": 1073741824,
"filename": "./sn1",
"cluster-size": 65536,
"format": "qcow2",
"actual-size": 200704,
"full-backing-filename": "././test.img",
"backing-filename": "./test.img",
"dirty-flag": false
}
5. check converted snapshot image info
qemu-img convert ./sn1 -f qcow2 -O raw sn1.raw
qemu-img info --output=json ./sn1.raw
{
"virtual-size": 1073741824,
"filename": "./sn1.raw",
"format": "raw",
"actual-size": 0
}
thanks,
Xu
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHSA-2013-1553.html *** Bug 999749 has been marked as a duplicate of this bug. *** |
Description of problem: Version-Release number of selected component (if applicable): print image info to json format is support by upstream, see below commit commit c054b3fd78f28b12f4d066583fc0ade017752479 Author: Benoît Canet <benoit> Date: Wed Sep 5 13:09:02 2012 +0200 qemu-img: Add json output option to the info command. This option --output=[human|json] make qemu-img info output on human or JSON representation at the choice of the user. example: { "snapshots": [ { "vm-clock-nsec": 637102488, "name": "vm-20120821145509", "date-sec": 1345553709, "date-nsec": 220289000, "vm-clock-sec": 20, "id": "1", "vm-state-size": 96522745 }, { "vm-clock-nsec": 28210866, "name": "vm-20120821154059", "date-sec": 1345556459, "date-nsec": 171392000, "vm-clock-sec": 46, "id": "2", "vm-state-size": 101208714 } ], "virtual-size": 1073741824, "filename": "snap.qcow2", "cluster-size": 65536, "format": "qcow2", "actual-size": 985587712, "dirty-flag": false } Signed-off-by: Benoit Canet <benoit> Signed-off-by: Kevin Wolf <kwolf> we need to backport it; How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: