[ovirt-users] Re: 10GB disk created on glusterfs storage has only 4096B in vm
hello,
On 7/29/20 6:33 PM, shadow emy wrote:
I had a similar problem, after i migrate the disk from a
"Storage Domain" to a second "Storage Domain" the disk size was
different and i could not start the vm anymore.
The Ovirt error was : "Unable to get volume size for domain"
Somehow gluster has some errors when i migrate disks and the disk have different size.
What i did was to disable performance.stat-prefetch for the gluster volume(I read it has
some bugs if is enabled in gluster 7.x)
thanks for reply. In my case it loks like I have not
"performance.stat-prefetch" enabled...
[root@ovirt-hci01 ~]# gluster volume info vms
Volume Name: vms
Type: Replicate
Volume ID: ba5fd3b8-0704-4462-8257-94b77a1222c4
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 10.0.4.13:/gluster_bricks/vms/vms
Brick2: 10.0.4.11:/gluster_bricks/vms/vms
Options Reconfigured:
performance.client-io-threads: off
cluster.eager-lock: enable
performance.io-cache: off
performance.read-ahead: off
performance.quick-read: off
user.cifs: off
network.ping-timeout: 30
network.remote-dio: off
performance.strict-o-direct: on
performance.low-prio-threads: 32
features.shard: on
storage.owner-gid: 36
storage.owner-uid: 36
transport.address-family: inet
storage.fips-mode-rchecksum: on
nfs.disable: on
cluster.self-heal-daemon: enable
...well, If it is not a default setting... so I set it off...
[root@ovirt-hci01 ~]# gluster volume set vms performance.stat-prefetch off
volume set: success
...and unbeliavable, it works now!
Is it bug in glusterfs 7.6-1.el8 (link?) or something else?
Should not be this setting default one?
Also try to look at Disk Snapshots, see if you have a snapshot that
does not exist.
In my case i had this snapshot problem after migration and i had to delete the snapshot
from the database and set the main image disk id as default in the vm.
I have no snapshots of this vm. I just created new vm and try to install
it from ISO.
Maybe in you case is different.
Well, it was exactly this case, thanks!
Cheers,
Jiri
Emy
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