10:28 a.m.
Hi,
I have another spooky issue. CentOS 8.2, oVirt 4.4.1.10-1
I am trying to create vm on my HCI cluster (which in fact has only two
nodes now, the third will be added later). I have created new 10GB disk
on gluster storage (it behaves the same way when I chose prealocated or
thin provision disk). Everything looks good (I was surprised how fast
was this disk created) but when I run the vm then disk has only 4096 bytes.
see http://mirror.slu.cz/tmp/ovirt_small_disk.png
disk creation part of engine.log is here
https://paste.slu.cz/?0e33e800609898d8#CEC2maoe7zk9b1zmnHaAENjaAnpiyzzGzP...
the same part in vdsm.log on SPM host
https://paste.slu.cz/?e89fdce800c39b28#3UWw7dXxQAmZysMSKp5NbeTWMNDghZVh2N...
where could be problem? Did anybody experience this behavior?
Cheers,
Jiri
6:33 p.m.
New subject: 10GB disk created on glusterfs storage has only 4096B in vm
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)
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.
Maybe in you case is different.
Emy
7:09 p.m.
New subject: 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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7:37 p.m.
New subject: 10GB disk created on glusterfs storage has only 4096B in vm
On Wed, Jul 29, 2020 at 7:13 PM Jiří Sléžka <jiri.slezka(a)slu.cz> wrote:
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
BTW: you can run this command to see all options settings, default ones and
not for the vms volume:
gluster volume get vms all
7:41 p.m.
New subject: 10GB disk created on glusterfs storage has only 4096B in vm
On 7/29/20 7:37 PM, Gianluca Cecchi wrote:
On Wed, Jul 29, 2020 at 7:13 PM Jiří Sléžka <jiri.slezka(a)slu.cz
<mailto:jiri.slezka@slu.cz>> wrote:
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
BTW: you can run this command to see all options settings, default ones
and not for the vms volume:
gluster volume get vms all
good point!
Cheers,
Jiri
2:03 p.m.
New subject: 10GB disk created on glusterfs storage has only 4096B in vm
Good that is ok for you now.
As Gianluca told you the command to see all the gluster volume settings is : gluster
volume get vol_name all
The previous command you used : gluster volume info vol_name will list only modified
settings from default and not all the settings. The output shows only volume "Options
Reconfigured".
Regarding if this is an important bug that affects gluster 7.6(or other versions) and
should be disabled by default, i dont know for sure.
I am just using ovirt as a hyperconvergence tool.
Maybe someone from the ovirt development team can answer that.
10:12 p.m.
New subject: 10GB disk created on glusterfs storage has only 4096B in vm
I have been using 7.6 (and rewntly migrated to 7.7) on my oVirt 4.3.10 withkut any
issues so far.
Are you sure that it's not oVirt 4.4 specific ?
Best Regards,
Strahil Nikolov
На 30 юли 2020 г. 15:03:17 GMT+03:00, shadow emy <shadow.emy1(a)gmail.com> написа:
>Good that is ok for you now.
>As Gianluca told you the command to see all the gluster volume settings
>is : gluster volume get vol_name all
>
>The previous command you used : gluster volume info vol_name will
>list only modified settings from default and not all the settings. The
>output shows only volume "Options Reconfigured".
>
>Regarding if this is an important bug that affects gluster 7.6(or other
>versions) and should be disabled by default, i dont know for sure.
>I am just using ovirt as a hyperconvergence tool.
> Maybe someone from the ovirt development team can answer that.
>_______________________________________________
>Users mailing list -- users(a)ovirt.org
>To unsubscribe send an email to users-leave(a)ovirt.org
>Privacy Statement: https://www.ovirt.org/privacy-policy.html
>oVirt Code of Conduct:
>https://www.ovirt.org/community/about/community-guidelines/
>List Archives:
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10:18 p.m.
New subject: 10GB disk created on glusterfs storage has only 4096B in vm
Damn, those thick fingers...
На 30 юли 2020 г. 23:12:00 GMT+03:00, Strahil Nikolov <hunter86_bg(a)yahoo.com>
написа:
>I have been using 7.6 (and rewntly migrated to 7.7) on my oVirt 4.3.10
> withkut any issues so far.
>
>Are you sure that it's not oVirt 4.4 specific ?
>
>Best Regards,
>Strahil Nikolov
>
>На 30 юли 2020 г. 15:03:17 GMT+03:00, shadow emy
><shadow.emy1(a)gmail.com> написа:
>>Good that is ok for you now.
>>As Gianluca told you the command to see all the gluster volume
>settings
>>is : gluster volume get vol_name all
>>
>>The previous command you used : gluster volume info vol_name will
>>list only modified settings from default and not all the settings. The
>>output shows only volume "Options Reconfigured".
>>
>>Regarding if this is an important bug that affects gluster 7.6(or
>other
>>versions) and should be disabled by default, i dont know for sure.
>>I am just using ovirt as a hyperconvergence tool.
>> Maybe someone from the ovirt development team can answer that.
>>_______________________________________________
>>Users mailing list -- users(a)ovirt.org
>>To unsubscribe send an email to users-leave(a)ovirt.org
>>Privacy Statement: https://www.ovirt.org/privacy-policy.html
>>oVirt Code of Conduct:
>>https://www.ovirt.org/community/about/community-guidelines/
>>List Archives:
>>https://lists.ovirt.org/archives/list/users@ovirt.org/message/EFVT6AMOI4IQJKR6SURWNEMWVY622Y6T/
1369
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7 comments
4 participants
participants (4)
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Gianluca Cecchi -
Jiří Sléžka -
shadow emy -
Strahil Nikolov