7:42 a.m.
Hi,
I'm running ovirt-engine-sdk-python 4.2.4 and I'm performing some
snapshot-related tasks. I'd like to somehow control the status of the
snapshot in order to know when I'll be able to run the next
snapshot-related operation.
For example, I'd like to create a new snapshot and then delete X oldest
snapshots. After creating the snapshot I have to make sure the snapshot
operation has concluded to run the deletion.
However, I'm unable to find a native way to get the status of a
snapshot.
In [1]: snap = conn.follow_link(vm.snapshots)[3] # This returns
one snapshot
In [2]: snap.status
In [3]: snap.status_detail
So both status-related properties return None. I've managed to find a
"poorman's" way by doing this:
while True:
try:
snaps_service.service(snap.id).remove()
except Error, e:
if e.code == 409:
sleep(30)
continue
else:
break
Which works but is quite "tricky".
Is there a better way to do this?
Thanks.
7:59 a.m.
You can do that using something like:
snapshot_service = snapshots_service.snapshot_service(snapshot.id)
snapshot = snapshot_service.get()
if snapshot.snapshot_status == types.SnapshotStatus.OK:
...
But counting on the snapshot status is race prone, so in 4.2 a search by
correlation id was introduced and you can do something like this (taken
from ovirt-system-tests[1]):
correlation_id = uuid.uuid4()
vm1_snapshots_service.add(dead_snap1_params,
query={'correlation_id': correlation_id})
testlib.assert_true_within_long(
lambda:
test_utils.all_jobs_finished(engine, correlation_id)
)
Where all jobs finished does:
try:
jobs = engine.jobs_service().list(
search='correlation_id=%s' % correlation_id
)
except:
jobs = engine.jobs_service().list()
return all(job.status != types.JobStatus.STARTED for job in jobs)
[1] -
https://github.com/oVirt/ovirt-system-tests/blob/master/basic-suite-maste...
On Mon, Apr 9, 2018 at 2:42 PM, <nicolas(a)devels.es> wrote:
Hi,
I'm running ovirt-engine-sdk-python 4.2.4 and I'm performing some
snapshot-related tasks. I'd like to somehow control the status of the
snapshot in order to know when I'll be able to run the next
snapshot-related operation.
For example, I'd like to create a new snapshot and then delete X oldest
snapshots. After creating the snapshot I have to make sure the snapshot
operation has concluded to run the deletion.
However, I'm unable to find a native way to get the status of a snapshot.
In [1]: snap = conn.follow_link(vm.snapshots)[3] # This returns one
snapshot
In [2]: snap.status
In [3]: snap.status_detail
So both status-related properties return None. I've managed to find a
"poorman's" way by doing this:
while True:
try:
snaps_service.service(snap.id).remove()
except Error, e:
if e.code == 409:
sleep(30)
continue
else:
break
Which works but is quite "tricky".
Is there a better way to do this?
Thanks.
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Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
8 a.m.
Hi,
After issuing the remove operation, you can fetch the VM snapshots and
check the status of the snapshot.
Here is an example how to fetch VM snapshots:
https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/list_vm_
snapshots.py
You'd want to wait until the status is OK.
On Mon, Apr 9, 2018 at 2:42 PM, <nicolas(a)devels.es> wrote:
Hi,
I'm running ovirt-engine-sdk-python 4.2.4 and I'm performing some
snapshot-related tasks. I'd like to somehow control the status of the
snapshot in order to know when I'll be able to run the next
snapshot-related operation.
For example, I'd like to create a new snapshot and then delete X oldest
snapshots. After creating the snapshot I have to make sure the snapshot
operation has concluded to run the deletion.
However, I'm unable to find a native way to get the status of a snapshot.
In [1]: snap = conn.follow_link(vm.snapshots)[3] # This returns one
snapshot
In [2]: snap.status
In [3]: snap.status_detail
So both status-related properties return None. I've managed to find a
"poorman's" way by doing this:
while True:
try:
snaps_service.service(snap.id).remove()
except Error, e:
if e.code == 409:
sleep(30)
continue
else:
break
Which works but is quite "tricky".
Is there a better way to do this?
Thanks.
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
2450
days inactive
2450
days old
2 comments
3 participants
participants (3)
-
Ala Hino -
Benny Zlotnik -
nicolas＠devels.es