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wefixit-AT avatar wefixit-AT commented on July 22, 2024

More debugging is not easy with the SDK/API, the exception which is given from the SDK is currently displayed, much more is not possible I think.

But I made a branch with some changes and added a traceback. Can you checkout the branch "issue_16" and post the output here. Check first if it doesn't contain sensitive information's !!! ;-)

If this helps, I will add a more debug output as you suggested. Sound's like a good idea.

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fthommen avatar fthommen commented on July 22, 2024

With this version I get

$ ./backup.py -c ./config_testvm.cfg -d
Apr 14 16:04:12: Start backup for: testvm
Apr 14 16:04:30: Found snapshots(1):
Apr 14 16:04:30: Snapshots description: Snapshot for backup script, Created on: 2016-04-12 13:15:34.983000+02:00
Apr 14 16:04:32: Snapshot deletion started ...
Apr 14 16:04:36: Snapshot operation(deletion) in progress ...
Apr 14 16:04:45: Snapshot operation(deletion) in progress ...
Apr 14 16:04:55: Snapshot operation(deletion) in progress ...
Apr 14 16:05:04: Snapshot operation(deletion) in progress ...
Apr 14 16:05:13: Snapshot operation(deletion) in progress ...
Apr 14 16:05:22: Snapshot operation(deletion) in progress ...
Apr 14 16:05:31: Snapshot operation(deletion) in progress ...
Apr 14 16:05:39: Snapshot operation(deletion) in progress ...
Apr 14 16:05:48: Snapshot operation(deletion) in progress ...
Apr 14 16:05:57: Snapshot operation(deletion) in progress ...
Apr 14 16:06:06: Snapshot operation(deletion) in progress ...
Apr 14 16:06:15: Snapshot operation(deletion) in progress ...
Apr 14 16:06:24: Snapshot operation(deletion) in progress ...
Apr 14 16:06:32: Snapshot operation(deletion) in progress ...
Apr 14 16:06:40: Snapshots deleted
Apr 14 16:06:41: Snapshot creation started ...
Apr 14 16:06:49: Snapshot operation(creation) in progress ...
Apr 14 16:06:58: Snapshot operation(creation) in progress ...
Apr 14 16:07:06: Snapshot created
Apr 14 16:07:20: Clone into VM started ...
Apr 14 16:07:23: !!! Got a RequestError: 
status: 400
reason: Bad Request
detail: Internal Engine Error
Traceback (most recent call last):
  File "./backup.py", line 127, in main
    api.vms.add(params.VM(name=vm_clone_name, memory=vm.get_memory(), cluster=api.clusters.get(config.get_cluster_name()), snapshots=snapshots_param))
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/brokers.py", line 35196, in add
    headers={"Correlation-Id":correlation_id, "Expect":expect}
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 75, in add
    return self.request('POST', url, body, headers)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 115, in request
    persistent_auth=self.__persistent_auth
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 79, in do_request
    persistent_auth)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 156, in __do_request
    raise errors.RequestError(response_code, response_reason, response_body)
RequestError: 
status: 400
reason: Bad Request
detail: Internal Engine Error
Apr 14 16:07:23: All backups done
Apr 14 16:07:23: Backup failured for:
Apr 14 16:07:23:   testvm
Apr 14 16:07:23: Some errors occured during the backup, please check the log file
$

The configuration is the same as before with an added use_short_suffix = false. I have problems interpreting this traceback

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wefixit-AT avatar wefixit-AT commented on July 22, 2024

Hi, its not really clear right now. So I wrote some check's to see if the config is correct. Can you checkout the latest changes on the branch "issue_16" and see if it prints some errors about missing config settings for export_domain, cluster_name and storage_domain. (I will refactor this later)

commit: 3e24471

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fthommen avatar fthommen commented on July 22, 2024

I can't see a big difference:

$ ./backup.py -c ./config_testvm.cfg -d
Apr 15 11:09:06: Start backup for: testvm
Apr 15 11:09:24: Found snapshots(1):
Apr 15 11:09:24: Snapshots description: Snapshot for backup script, Created on: 2016-04-14 16:06:43.088000+02:00
Apr 15 11:09:26: Snapshot deletion started ...
Apr 15 11:09:30: Snapshot operation(deletion) in progress ...
Apr 15 11:09:39: Snapshot operation(deletion) in progress ...
Apr 15 11:09:48: Snapshot operation(deletion) in progress ...
Apr 15 11:09:58: Snapshot operation(deletion) in progress ...
Apr 15 11:10:07: Snapshot operation(deletion) in progress ...
Apr 15 11:10:16: Snapshot operation(deletion) in progress ...
Apr 15 11:10:26: Snapshot operation(deletion) in progress ...
Apr 15 11:10:35: Snapshot operation(deletion) in progress ...
Apr 15 11:10:44: Snapshot operation(deletion) in progress ...
Apr 15 11:10:52: Snapshot operation(deletion) in progress ...
Apr 15 11:11:01: Snapshot operation(deletion) in progress ...
Apr 15 11:11:09: Snapshot operation(deletion) in progress ...
Apr 15 11:11:18: Snapshot operation(deletion) in progress ...
Apr 15 11:11:27: Snapshot operation(deletion) in progress ...
Apr 15 11:11:35: Snapshots deleted
Apr 15 11:11:36: Snapshot creation started ...
Apr 15 11:11:43: Snapshot operation(creation) in progress ...
Apr 15 11:11:52: Snapshot operation(creation) in progress ...
Apr 15 11:12:01: Snapshot created
Apr 15 11:12:15: Clone into VM started ...
Apr 15 11:12:17: !!! Got a RequestError: 
status: 400
reason: Bad Request
detail: Internal Engine Error
Traceback (most recent call last):
  File "./backup.py", line 145, in main
    api.vms.add(params.VM(name=vm_clone_name, memory=vm.get_memory(), cluster=api.clusters.get(config.get_cluster_name()), snapshots=snapshots_param))
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/brokers.py", line 35196, in add
    headers={"Correlation-Id":correlation_id, "Expect":expect}
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 75, in add
    return self.request('POST', url, body, headers)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 115, in request
    persistent_auth=self.__persistent_auth
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 79, in do_request
    persistent_auth)
  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/connectionspool.py", line 156, in __do_request
    raise errors.RequestError(response_code, response_reason, response_body)
RequestError: 
status: 400
reason: Bad Request
detail: Internal Engine Error
Apr 15 11:12:17: All backups done
Apr 15 11:12:17: Backup failured for:
Apr 15 11:12:17:   testvm
Apr 15 11:12:17: Some errors occured during the backup, please check the log file
$

Can you say from this traceback, which step/function fails?

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wefixit-AT avatar wefixit-AT commented on July 22, 2024

I see a difference :-) It means that the the values are correct.

Can you please attach the engine.log which is generated during the backup.

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fthommen avatar fthommen commented on July 22, 2024

It is impossible for me to see, which entries in the 40k-line logfile came from the backup job :-). I'll rerun backup.py to generate new entries and filter them out as they are being generated. However I'd prefer not to post them publicly. Is it ok if I send them to you personally? Do you want me to also send you the engine.log entries for a VM where backup.py runs fine?

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wefixit-AT avatar wefixit-AT commented on July 22, 2024

Yes you can send it to me, I will handle it with care and don't publish sensitive Information's and wipe it after we find the problem.

Can you also create a empty third test VM with a disk of 1GB without a Operating System and run the backup on it. Maybe the VM has a strange problem.

I had this before on a test network with a VM where I hit some official Bug's (again) which where already reported to oVirt. There was the problem that a snapshot was generate but the snapshot disk was, for unknown reasons, corrupt and the backup-script did the job but the export VM has no disks stored. During the debugging I saw that all the SDK methods report no errors but there where thousand entries in the engine.log which are not forwarded through the SDK.

In short, currently I'm sceptical since I switched from VMWare ESXi to oVirt, before I had never problems. But this is another story :-(

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fthommen avatar fthommen commented on July 22, 2024

Logs and output are on the way to your mailbox. As for the minimal test-VM, I'll only be able to do this early next week. I'll then send you it's backup output as soon as it is available.

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fthommen avatar fthommen commented on July 22, 2024

Seems to have been a problem with some VMs themselves which could also not exported and imported properly through the oVirt WebUI. After rebuilding the VMs from scratch, the backup problems have gone. Thanks a lot for all your help.

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