July 2020 - Users - oVirt List Archives

Re: Problem with backuping ovirt 4.4 with SDK
by Nir Soffer 15 Jul '20

15 Jul '20

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

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oVirt 2020 online conference - free registration now open
by Sandro Bonazzola 15 Jul '20

15 Jul '20

It is our pleasure to renew our invite to oVirt 2020 online conference and announce free registration <https://www.eventbrite.it/e/ovirt-2020-online-conference-registration-11198…> is now open. The conference,organized by oVirt community, will take place online on Monday, September 7th 2020! You can read updated information about the conference at https://blogs.ovirt.org/ovirt-2020-online-conference/ A kind reminder that if you'd like to present at the conference, the deadline for the presentation proposal is July 26th 2020. -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/> *Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

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[OT] Major and minor numbers assigned to /dev/vdx virtio devices
by Gianluca Cecchi 14 Jul '20

14 Jul '20

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

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how to get ovirt 4.3 documentation?
by Philip Brown 14 Jul '20

14 Jul '20

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

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How does ovirt collect data from foreman gui
by The Gaming Ant 14 Jul '20

14 Jul '20

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..

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Failing to restore a backup
by Andrea Chierici 14 Jul '20

14 Jul '20

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 --

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video virtio (instead of qxl)
by Michael Lipp 14 Jul '20

14 Jul '20

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

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engine log level
by Arsène Gschwind 14 Jul '20

14 Jul '20

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

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Admin portal will not load after installing updates
by Michael Watters 14 Jul '20

14 Jul '20

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?

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Failed to upload ISO oVirt 4.4.0 - imageio unable to verify certificate
by Erez Zarum 13 Jul '20

13 Jul '20

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.

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