[ovirt-users] Re: Unable to move or copy disks

Sunday, 29 November 2020

Usually distributed volumes are supported on a Single-node setup, but it shouldn't be
the problem.

As you know the affected VMs , you can easily find the disks of a VM.

Then try to read the VM's disk:

sudo -u vdsm dd
if=/rhev/data-center/mnt/glusterSD/gfs1.server.pt:_gfs1data/<Storage_domain_UUID>/images/<DISK-UUID>/<VM_DISK>
of=/dev/null bs=4M status=progress

Does it give errors ?

Best Regards,
Strahil Nikolov

В неделя, 29 ноември 2020 г., 20:06:42 Гринуич+2, suporte(a)logicworks.pt
<suporte(a)logicworks.pt&gt; написа: 

No heals pending
There are some VM's I can move the disk but some others VM's I cannot move the
disk

It's a simple gluster
]# gluster volume info

Volume Name: gfs1data
Type: Distribute
Volume ID: 7e6826b9-1220-49d4-a4bf-e7f50f38c42c
Status: Started
Snapshot Count: 0
Number of Bricks: 1
Transport-type: tcp
Bricks:
Brick1: gfs1.server.pt:/home/brick1
Options Reconfigured:
diagnostics.brick-log-level: INFO
performance.client-io-threads: off
server.event-threads: 4
client.event-threads: 4
cluster.choose-local: yes
user.cifs: off
features.shard: on
cluster.shd-wait-qlength: 10000
cluster.locking-scheme: granular
cluster.data-self-heal-algorithm: full
cluster.server-quorum-type: server
cluster.quorum-type: auto
cluster.eager-lock: enable
network.remote-dio: enable
performance.low-prio-threads: 32
performance.io-cache: off
performance.read-ahead: off
performance.quick-read: off
storage.owner-gid: 36
storage.owner-uid: 36
transport.address-family: inet
nfs.disable: on

________________________________
De: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Para: suporte(a)logicworks.pt
Cc: users(a)ovirt.org
Enviadas: Domingo, 29 De Novembro de 2020 17:27:04
Assunto: Re: [ovirt-users] Re: Unable to move or copy disks

Are you sure you don't have any heals pending ?
I should admit I have never seen this type of error.

Is it happening for all VMs or only specific ones ?

Best Regards,
Strahil Nikolov

В неделя, 29 ноември 2020 г., 15:37:04 Гринуич+2, suporte(a)logicworks.pt
<suporte(a)logicworks.pt&gt; написа: 

Sorry, I found this error on gluster logs:

 [MSGID: 113040] [posix-helpers.c:1929:__posix_fd_ctx_get] 0-gfs1data-posix: Failed to get
anonymous fd for real_path:
/home/brick1/.glusterfs/bc/57/bc57653e-b08c-417b-83f3-bf234a97e30f. [No such file or
directory]

________________________________
De: suporte(a)logicworks.pt
Para: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Cc: users(a)ovirt.org
Enviadas: Domingo, 29 De Novembro de 2020 13:13:00
Assunto: [ovirt-users] Re: Unable to move or copy disks

I don't find any error in the gluster logs, I just find this error in the vdsm log:

2020-11-29 12:57:45,528+0000 INFO  (tasks/1) [storage.SANLock] Successfully released
Lease(name='61d85180-65a4-452d-8773-db778f56e242',
path=u'/rhev/data-center/mnt/node2.server.pt:_home_node2data/ab4855be-0edd-4fac-b062-bded661e20a1/images/a847beca-7ed0-4ff1-8767-fc398379d85b/61d85180-65a4-452d-8773-db778f56e242.lease',
offset=0) (clusterlock:524)
2020-11-29 12:57:45,528+0000 ERROR (tasks/1) [root] Job
u'cc8ea210-df4b-4f0b-a385-5bc3adc825f6' failed (jobs:221)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/vdsm/jobs.py", line 157, in run
    self._run()
  File "/usr/lib/python2.7/site-packages/vdsm/storage/sdm/api/copy_data.py",
line 86, in _run
    self._operation.run()
  File "/usr/lib/python2.7/site-packages/vdsm/storage/qemuimg.py", line 343, in
run
    for data in self._operation.watch():
  File "/usr/lib/python2.7/site-packages/vdsm/storage/operation.py", line 106,
in watch
    self._finalize(b"", err)
  File "/usr/lib/python2.7/site-packages/vdsm/storage/operation.py", line 179,
in _finalize
    raise cmdutils.Error(self._cmd, rc, out, err)
Error: Command ['/usr/bin/qemu-img', 'convert', '-p',
'-t', 'none', '-T', 'none', '-f', 'raw',
u'/rhev/data-center/mnt/glusterSD/gfs1.server.pt:_gfs1data/0e8de531-ac5e-4089-b390-cfc0adc3e79a/images/a847beca-7ed0-4ff1-8767-fc398379d85b/61d85180-65a4-452d-8773-db778f56e242',
'-O', 'raw',
u'/rhev/data-center/mnt/node2.server.pt:_home_node2data/ab4855be-0edd-4fac-b062-bded661e20a1/images/a847beca-7ed0-4ff1-8767-fc398379d85b/61d85180-65a4-452d-8773-db778f56e242']
failed with rc=1 out='' err=bytearray(b'qemu-img: error while reading sector
134086625: No such file or directory\n')
2020-11-29 12:57:45,528+0000 INFO  (tasks/1) [root] Job
u'cc8ea210-df4b-4f0b-a385-5bc3adc825f6' will be deleted in 3600 seconds
(jobs:249)
2020-11-29 12:57:45,529+0000 INFO  (tasks/1) [storage.ThreadPool.WorkerThread] FINISH task
309c4289-fbba-489b-94c7-8aed36948c29 (threadPool:210)

Any idea?

Regards
José
________________________________
De: suporte(a)logicworks.pt
Para: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Cc: users(a)ovirt.org
Enviadas: Sábado, 28 De Novembro de 2020 18:39:47
Assunto: [ovirt-users] Re: Unable to move or copy disks

I really don't understand this.
I have 2 glusters same version, 6.10

I can move a disk from gluster2 to gluster1, but cannot move the same disk from gluster1
to gluster2
ovirt version: 4.3.10.4-1.el7

Regards
José

________________________________
De: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Para: suporte(a)logicworks.pt
Cc: users(a)ovirt.org
Enviadas: Segunda-feira, 23 De Novembro de 2020 5:45:37
Assunto: Re: [ovirt-users] Re: Unable to move or copy disks

No, but keep an eye on you "/var/log" as debug is providing a lot of info.

Usually when you got a failure to move the disk, you can disable and check the logs.

Best Regards,
Strahil Nikolov

В неделя, 22 ноември 2020 г., 21:12:26 Гринуич+2, <suporte(a)logicworks.pt&gt; написа: 

Do I need to restart gluster after enable debug level?

gluster volume set data2 diagnostics.brick-log-level DEBUG

________________________________
De: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Para: suporte(a)logicworks.pt
Cc: users(a)ovirt.org
Enviadas: Sábado, 21 De Novembro de 2020 19:42:44
Assunto: Re: [ovirt-users] Re: Unable to move or copy disks

You still haven't provided debug logs from the Gluster Bricks.
There will be always a chance that a bug hits you ... no matter OS and tech. What matters
- is how you debug and overcome that bug.

Check the gluster brick debug logs and you can test if the issue happens with an older
version.

Also, consider providing oVirt version, Gluster version and some details about your setup
- otherwise helping you is almost impossible.

Best Regards,
Strahil Nikolov

В събота, 21 ноември 2020 г., 18:16:13 Гринуич+2, suporte(a)logicworks.pt
<suporte(a)logicworks.pt&gt; написа: 

With older gluster verison this does not happens.

Always get this error: VDSM NODE3 command HSMGetAllTasksStatusesVDS failed: low level
Image copy failed: ()
and in the vdsm.log: 
ERROR (tasks/7) [storage.Image] Copy image error:
image=6939cc5d-dbca-488d-ab7a-c8b8d39c3656, src
domain=70e33d55-f1be-4826-b85a-9650c76c8db8, dst
domain=0b80eac1-8bbb-4634-9098-4155602c7b38 (image:485) ERROR (tasks/7)
[storage.TaskManager.Task] (Task='fbf02f6b-c107-4c1e-a9c7-b13261bf99e0')
Unexpected error (task:875)

For smaller installations, without the need of storage HA, maybe it's better to use
NFS? Is more stable?

Regards

José

________________________________
De: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Para: suporte(a)logicworks.pt
Cc: users(a)ovirt.org
Enviadas: Sexta-feira, 20 De Novembro de 2020 21:55:28
Assunto: Re: [ovirt-users] Unable to move or copy disks

I can recommend you to:
- enable debug level of gluster's bricks
- try to reproduce the issue

I had similar issue with gluster v6.6 and above.

Best Regards,
Strahil Nikolov

В петък, 20 ноември 2020 г., 23:35:14 Гринуич+2, <suporte(a)logicworks.pt&gt; написа: 

I tried to move the VM disk with the VM up
I also tried to move or copy the disk with the VM down, and get the same error.

Strange is, I have a gluster storage domain, with an older gluster version, that worked. I
was able to move the disk to this older gluster and also I was able to copy the disk from
to this older gluster storage

What should I do with this VM? Should I shut it down and try delete the snapshot?

Regards
José

________________________________
De: "Strahil Nikolov" <hunter86_bg(a)yahoo.com&gt;
Para: users(a)ovirt.org, suporte(a)logicworks.pt
Enviadas: Sexta-feira, 20 De Novembro de 2020 21:05:19
Assunto: Re: [ovirt-users] Unable to move or copy disks

Can you try a live migration ?
I got a similar case and the live migration somehow triggered a fix.

Best Regards,
Strahil Nikolov

В петък, 20 ноември 2020 г., 21:04:13 Гринуич+2, <suporte(a)logicworks.pt&gt; написа: 

Hi,

I was trying to move a disk between glusters domain storage without success.

# gluster --version glusterfs 6.10

Now  have a VM with this message:
The VM has snapshot(s) with disk(s) in illegal status. Please don't shutdown the VM
before successfully retrying the snapshot delete

oVirt verison is
Version 4.3.10.4-1.el7

I cannot delete the snapshot. What should I do?

hanks

-- 
________________________________
Jose Ferradeira
http://www.logicworks.pt
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[ovirt-users] Re: Unable to move or copy disks