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Message #46462
[Bug 1482171] Re: cinder ceph volume cannot attach to instance in Kilo
Original reported said they could no longer reproduce the bug.
** Changed in: nova
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1482171
Title:
cinder ceph volume cannot attach to instance in Kilo
Status in OpenStack Compute (nova):
Invalid
Bug description:
Kilo release on Centos 7.
when nova attach a ceph based volume to an existing instance, do not
notify cinder(?) about the attaching so I cannot detach and/or delete
the volume later. The volume actualy attached to the instance
## Cinder volume and nova instance
$ cinder list
+--------------------------------------+-----------+-------------+------+--------------+----------+-------------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Multiattach | Attached to |
+--------------------------------------+-----------+-------------+------+--------------+----------+-------------+-------------+
| 736ead1d-2c59-4415-a0a3-8a1e8379872d | available | test volume | 10 | ceph_cluster | false | False | |
+--------------------------------------+-----------+-------------+------+--------------+----------+-------------+-------------+
$ nova list
+--------------------------------------+-------+--------+------------+-------------+---------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------+--------+------------+-------------+---------------------+
| 890cce5e-8e5c-4871-ba80-6fd5a4045c2f | ubu 1 | ACTIVE | - | Running | daddy-net=10.0.0.19 |
+--------------------------------------+-------+--------+------------+-------------+---------------------+
## attach volume to instance
$ nova volume-attach 890cce5e-8e5c-4871-ba80-6fd5a4045c2f 736ead1d-2c59-4415-a0a3-8a1e8379872d
+----------+--------------------------------------+
| Property | Value |
+----------+--------------------------------------+
| device | /dev/vdb |
| id | 736ead1d-2c59-4415-a0a3-8a1e8379872d |
| serverId | 890cce5e-8e5c-4871-ba80-6fd5a4045c2f |
| volumeId | 736ead1d-2c59-4415-a0a3-8a1e8379872d |
+----------+--------------------------------------+
## cinder (and nova) do not know anything about attaching ('attached
to' field is empty):
$ cinder list
+--------------------------------------+-----------+-------------+------+--------------+----------+-------------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Multiattach | Attached to |
+--------------------------------------+-----------+-------------+------+--------------+----------+-------------+-------------+
| 736ead1d-2c59-4415-a0a3-8a1e8379872d | available | test volume | 10 | ceph_cluster | false | False | |
+--------------------------------------+-----------+-------------+------+--------------+----------+-------------+-------------+
## while the instance can use the new volume:
root@ubu-1:~# mkfs.ext4 /dev/vdb
mke2fs 1.42.12 (29-Aug-2014)
Creating filesystem with 2621440 4k blocks and 655360 inodes
Filesystem UUID: 450b9169-087e-4dba-aac6-4a23593a5a97
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
root@ubu-1:~# mount /dev/vdb /mnt/
root@ubu-1:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 997M 0 997M 0% /dev
tmpfs 201M 4.6M 196M 3% /run
/dev/disk/by-label/cloudimg-rootfs 20G 858M 19G 5% /
tmpfs 1001M 0 1001M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1001M 0 1001M 0% /sys/fs/cgroup
tmpfs 201M 0 201M 0% /run/user/1000
/dev/vdb 9.8G 23M 9.2G 1% /mnt
## finally I cannot delete the volume, cinder stuck "deleting' state and do not delete it from ceph pool
$ cinder list
+--------------------------------------+----------+-------------+------+--------------+----------+-------------+-------------+
| ID | Status | Name | Size | Volume Type | Bootable | Multiattach | Attached to |
+--------------------------------------+----------+-------------+------+--------------+----------+-------------+-------------+
| 736ead1d-2c59-4415-a0a3-8a1e8379872d | deleting | test volume | 10 | ceph_cluster | false | False | |
+--------------------------------------+----------+-------------+------+--------------+----------+-------------+-------------+
logs do not show errors
OS: Centos 7
cinder and nova versions:
python-cinder-2015.1.0-3.el7.noarch
openstack-cinder-2015.1.0-3.el7.noarch
python-cinderclient-1.1.1-1.el7.noarch
python-novaclient-2.23.0-1.el7.noarch
openstack-nova-conductor-2015.1.0-3.el7.noarch
openstack-nova-console-2015.1.0-3.el7.noarch
openstack-nova-common-2015.1.0-3.el7.noarch
openstack-nova-api-2015.1.0-3.el7.noarch
python-nova-2015.1.0-3.el7.noarch
openstack-nova-cert-2015.1.0-3.el7.noarch
openstack-nova-novncproxy-2015.1.0-3.el7.noarch
openstack-nova-scheduler-2015.1.0-3.el7.noarch
Expected result: able to attach a ceph based cinder volume to
instance(s), and then detach and delete it
Actual result: nova volume-attach the volume to the instance but do
not aware of the fact of the attaching therefore I cannot detach the
volume or delete the volume
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References
