Hello there,
I could not believe my eyes today.
We are talking about Cinder in Juno.
So we have a use case where we have to be sure we do snapshots
everyday, so we have a script that tries to do the snapshot in this
way:
while [ `/usr/bin/cinder snapshot-list | grep $DISPLAY_NAME | wc -l` -eq 0 ]; do
/usr/bin/cinder snapshot-create --force True --display-name
$DISPLAY_NAME $VOLUME_ID >> $LOG_FILE 2>&1
sleep 5
done
Looking over the log file we noticed that every snapshot required 3 or
4 tries to go through. Digging into the logs I found that I have some
snapshots that are valid, but they do not appear in the snapshot-list.
This is what I mean:
$ cinder snapshot-list | grep d0a750fd-37dd-43ee-87d8-aacbcacc5dc4
$ cinder snapshot-show d0a750fd-37dd-43ee-87d8-aacbcacc5dc4
+--------------------------------------------+--------------------------------------+
| Property | Value
|
+--------------------------------------------+--------------------------------------+
| created_at |
2016-03-15T23:30:21.000000 |
| display_description | None
|
| display_name | backup--130-20160316-00:30 |
| id |
d0a750fd-37dd-43ee-87d8-aacbcacc5dc4 |
| metadata | {}
|
| os-extended-snapshot-attributes:progress | 100%
|
| os-extended-snapshot-attributes:project_id |
bdf747f88fee4b5a9faca3da7c26754c |
| size | 2048
|
| status | available
|
| volume_id |
34d9a7a5-0383-4e59-8293-e9f9d4989490 |
+--------------------------------------------+--------------------------------------+
$
Very same thing with the latest openstack client
macsp:~ proto$ openstack snapshot list | grep
d0a750fd-37dd-43ee-87d8-aacbcacc5dc4
macsp:~ proto$ openstack snapshot show d0a750fd-37dd-43ee-87d8-aacbcacc5dc4
+--------------------------------------------+--------------------------------------+
| Field | Value
|
+--------------------------------------------+--------------------------------------+
| created_at |
2016-03-15T23:30:21.000000 |
| description | None
|
| id |
d0a750fd-37dd-43ee-87d8-aacbcacc5dc4 |
| name | backup--130-20160316-00:30 |
| os-extended-snapshot-attributes:progress | 100%
|
| os-extended-snapshot-attributes:project_id |
bdf747f88fee4b5a9faca3da7c26754c |
| properties |
|
| size | 2048
|
| status | available
|
| volume_id |
34d9a7a5-0383-4e59-8293-e9f9d4989490 |
+--------------------------------------------+--------------------------------------+
I checked the entry in the mysql database for this snapshots, they
look exactly identical to other entries where the snapshot appear.
Is this a old Juno bug ?
thank you
Saverio
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