Re: Problem with backuping ovirt 4.4 with SDK
by Nir Soffer
On Tue, Jul 14, 2020 at 9:33 AM Łukasz Kołaciński <l.kolacinski(a)storware.eu>
wrote:
> Hello,
>
Hi Lukaz,
Lets move the discussion to devel(a)ovirt.org, I think it will be more
productive.
Also, always CC me and Eyal on incremental backup questions for a quicker
response.
> I am trying to do full backup on ovirt 4.4 using sdk.
>
Which version of oVirt? libvirt?
> I used steps from this youtube video:
> https://www.youtube.com/watch?v=E2VWUVcycj4 and I got error after running
> backup_vm.py. I see that sdk has imported disks and created backup entity
> and then I got sdk.NotFoundError exception.
>
This means that starting backup failed. Unfortunately the API does not have
a good way to get
the error that caused the backup to fai.
You should be able to see the error in the event log in the UI, and in
engine log.
> I also tried to do full backup with API and after finalizing backup
> disappeared (I think)
>
So backup from the API was successful?
Backups are expected to disappear, they are temporary objects used to
manage the backup
process. Once the backup process was finished you can do nothing with the
backup object,
and you cannot fetch the same backup data again.
> and I couldn't try incremental.
>
The fact that the backup disappeared should not prevent the next backup.
After you create a backup, you need to poll backup status until the backup
is ready.
while backup.phase != BackupPhase.READY:
time.sleep(1)
backup = backup_service.get()# to_checkpoint_id will be used as
If the backup does not end in ready state, it failed, and you cannot do
anything with
this backup.
When the backup is ready, you can fetch the to_checkpoint_id created for
this backup.
checkpoint_id = backup.to_checkpoint_id
At this point you need to persist the checkpoint id. This will be used to
create the incremental
backup.
[ 0.0 ] Starting full backup for VM '51708c8e-6671-480b-b2d8-199a1af9cbdc'
> Password:
> [ 4.2 ] Waiting until backup 0458bf7f-868c-4859-9fa7-767b3ec62b52 is
> ready
> Traceback (most recent call last):
> File "./backup_vm.py", line 343, in start_backup
> backup = backup_service.get()
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/services.py", line
> 32333, in get
> return self._internal_get(headers, query, wait)
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/service.py", line
> 211, in _internal_get
> return future.wait() if wait else future
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/service.py", line 55,
> in wait
> return self._code(response)
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/service.py", line
> 208, in callback
> self._check_fault(response)
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/service.py", line
> 130, in _check_fault
> body = self._internal_read_body(response)
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/service.py", line
> 312, in _internal_read_body
> self._raise_error(response)
> File "/usr/lib64/python3.7/site-packages/ovirtsdk4/service.py", line
> 118, in _raise_error
> raise error
> ovirtsdk4.NotFoundError: HTTP response code is 404.
>
> During handling of the above exception, another exception occurred:
>
> Traceback (most recent call last):
> File "./backup_vm.py", line 476, in <module>
> main()
> File "./backup_vm.py", line 173, in main
> args.command(args)
> File "./backup_vm.py", line 230, in cmd_start
> backup = start_backup(connection, args)
> File "./backup_vm.py", line 345, in start_backup
> raise RuntimeError("Backup {} failed".format(backup.id))
> RuntimeError: Backup 0458bf7f-868c-4859-9fa7-767b3ec62b52 failed
>
This is correct, backup has failed.
Please check the event log to understand the failure.
Eyal, can you show how to get the error from the backup using the SDK, in a
way
that can be used by a program?
e.g. a public error code that can be used to decide on the next step, and
an error
message that can be used for displaying error to users of the backup
application.
This should be added to the backup_vm.py example.
Nir
4 years, 5 months
[OT] Major and minor numbers assigned to /dev/vdx virtio devices
by Gianluca Cecchi
Hello,
isn't there an official major/minor numbering scheme for virtio disks?
Sometimes I see 251 major or 252 or so... what is the udev assignment logic?
Reading here:
https://www.kernel.org/doc/Documentation/admin-guide/devices.txt
240-254 block LOCAL/EXPERIMENTAL USE
Allocated for local/experimental use. For devices not
assigned official numbers, these ranges should be
used in order to avoid conflicting with future assignments.
it seems they are in the range of experimental ones, while for example Xen
/dev/xvdx devices have their own static assignment (202 major)
Thanks,
Gianluca
4 years, 5 months
how to get ovirt 4.3 documentation?
by Philip Brown
I find it odd that the ovirt website allows to see older version RELEASE NOTES...
but doesnt seem to give links to general documentation for older versions.
For example, if you read
https://www.ovirt.org/release/4.3.10/
it says,
"For complete installation, administration, and usage instructions, see the oVirt Documentation."
but that links to the general docs page at https://www.ovirt.org/documentation/
It does NOT link to any ovirt 4.3 docs, which is what I actually need
--
Philip Brown| Sr. Linux System Administrator | Medata, Inc.
5 Peters Canyon Rd Suite 250
Irvine CA 92606
Office 714.918.1310| Fax 714.918.1325
pbrown(a)medata.com| www.medata.com
4 years, 5 months
How does ovirt collect data from foreman gui
by The Gaming Ant
Trying to initiate a build from foreman to ovirt. Data entered in the foreman gui, is not seen as accepted in ovirt . Is there anything to be setup for ovirt to accept the data from foreman..
4 years, 5 months
Failing to restore a backup
by Andrea Chierici
Dear all,
I'm rather new to the list, not to ovirt, that I use since 2014 profitably.
I've a problem with an ovirt instance and I am desperately seeking for help.
I run a 4.3 self hosted engine installation, with 8 hypervisors and an
iscsi storage.
Since the storage is not very reliable, I bought a dell powervault
where to move everything. No problem to move the VMs, the problem came
out with the hosted engine.
I've read many documentation and the procedure I think I must follow
involves backing up the current HE, powering it off, installing a new
host where to create a new HE recovering the backup.
The command I used to generate the backup is:
engine-backup --mode=backup --file=file_name --log=log_file_name
and the command used to restore it on the new HE is:
hosted-engine --deploy --restore-from-file=backup/file_name
The problem comes out during the recovering of the backup.
With versions prior to 4.3.11 and also with 4.4.0 I got the error:
2020-06-25 15:17:34,950+0200 ERROR ansible failed {
"ansible_host": "localhost",
"ansible_playbook":
"/usr/share/ovirt-hosted-engine-setup/ansible/trigger_role.yml",
"ansible_result": {
"_ansible_no_log": false,
"changed": false,
"invocation": {
"module_args": {
"ca_file": null,
"compress": true,
"headers": null,
"hostname": null,
"insecure": null,
"kerberos": false,
"ovirt_auth": {
"ansible_facts": {
"ovirt_auth": {
"ca_file": null,
"compress": true,
"headers": null,
"insecure": true,
"kerberos": false,
"timeout": 0,
"token":
"1f5Zoys35sQmLb2MiEg6bhWm2rDJULFan3eBK0juJJR3S-nXtN_b31jac1sZ0KRz3d1KSDmr8tyf7ExNe_pqJg",
"url":
"https://ovirt-sgsi.cnaf.infn.it/ovirt-engine/api"
}
},
"attempts": 1,
"changed": false,
"failed": false
},
"password": null,
"state": "absent",
"timeout": 0,
"token": null,
"url": null,
"username": null
}
},
"msg": "You must specify either 'url' or 'hostname'."
},
"ansible_task": "Always revoke the SSO token",
"ansible_type": "task",
"status": "FAILED",
"task_duration": 3
}
Recently I tried the 4.3.11 beta and 4.4.1 and the error now is different:
[ INFO ] Upgrading CA\n[ ERROR ] Failed to execute stage 'Misc
configuration': (2, 'No such file or directory')\n[ INFO ] DNF
Performing DNF transaction rollback\n
I simply can't figure out what file is missing.
If, as a test, I try to install the HE without restoring the backup, the
installation goes smoothly to the end, but at that point I can't restore
the backup, as far as I can understand.
Any hint on what I may be missing?
Thanks,
Andrea
--
Andrea Chierici - INFN-CNAF
Viale Berti Pichat 6/2, 40127 BOLOGNA
Office Tel: +39 051 2095463
SkypeID ataruz
--
4 years, 5 months
video virtio (instead of qxl)
by Michael Lipp
Hi,
I've searched to no avail: is it possible to use video virtio (instead of qxl) in a VM managed by oVirt? I have much better performance with video virtio when testing this with "plain" libvirt.
I would have at least expected to find some feature request or something alike when searching. Does anybody know anything about this being on some ToDo list? Or has this really escaped everybody's notice?
- Michael
4 years, 5 months
engine log level
by Arsène Gschwind
Hi,
I'm running oVirt 4.3.9 and i'm wondering if it is possible to increase engine Loglevel. I could not find anything on Google or in the docs.
Thanks for any Hint?
rgds, Arsène
--
Arsène Gschwind <arsene.gschwind(a)unibas.ch<mailto:arsene.gschwind@unibas.ch>>
Universitaet Basel
4 years, 5 months
Admin portal will not load after installing updates
by Michael Watters
After installing updates on our ovirt-engine running CentOS 7.8 the
administration portal will no longer load. The engine.log shows an
error as follows.
2020-07-09 11:26:27,094-04 ERROR
[org.ovirt.engine.core.bll.GetConfigurationValuesQuery] (default task-2)
[d97ed384-f919-412b-94e2-7ec04a56ea9c] Query
'GetConfigurationValuesQuery' failed: null
2020-07-09 11:26:27,095-04 ERROR
[org.ovirt.engine.core.bll.GetConfigurationValuesQuery] (default task-2)
[d97ed384-f919-412b-94e2-7ec04a56ea9c] Exception:
java.lang.NullPointerException
Does anybody know what would cause this or how to fix it?
4 years, 5 months
Failed to upload ISO oVirt 4.4.0 - imageio unable to verify certificate
by Erez Zarum
I have changed the Engine SSL certificate with our own certificates (using FreeIPA), i have followed the procedure described in the documents carefully and it is indeed working well.
I haven now tried to upload an ISO and it fails, using "test connection" says the connection to the imageio service is ok, but when the upload starts it fails.
I can see those errors in the ovirt-imageio daemon log file.
2020-07-10 06:00:48,386 ERROR (Thread-11) [http] Server error
Traceback (most recent call last):
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/http.py", line 699, in __call__
self.dispatch(req, resp)
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/http.py", line 744, in dispatch
return method(req, resp, *match.groups())
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/cors.py", line 84, in wrapper
return func(self, req, resp, *args)
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/images.py", line 66, in put
backends.get(req, ticket, self.config),
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/__init__.py", line 53, in get
cafile=config.tls.ca_file)
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/http.py", line 48, in open
secure=options.get("secure", True))
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/http.py", line 63, in __init__
options = self._options()
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/http.py", line 364, in _options
self._con.request("OPTIONS", self.url.path)
File "/usr/lib64/python3.6/http/client.py", line 1254, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1300, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib64/python3.6/http/client.py", line 974, in send
self.connect()
File "/usr/lib64/python3.6/http/client.py", line 1422, in connect
server_hostname=server_hostname)
File "/usr/lib64/python3.6/ssl.py", line 365, in wrap_socket
_context=self, _session=session)
File "/usr/lib64/python3.6/ssl.py", line 776, in __init__
self.do_handshake()
File "/usr/lib64/python3.6/ssl.py", line 1036, in do_handshake
self._sslobj.do_handshake()
File "/usr/lib64/python3.6/ssl.py", line 648, in do_handshake
self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)
Looking at old posts here, i have also tried:
keytool -importcert -trustcacerts -keystore /etc/pki/ovirt-engine/.truststore -storepass mypass -file /etc/pki/ovirt-engine/apache-ca.pem
And restarted both the ovirt-imageio service and the ovirt-engine service, it didn't help.
4 years, 5 months
