[releng] Issue #7408: intermittent `libvirtError: File exists` errors for imagebuild tasks

[Dusty Mabe]

dustymabe reported a new issue against the project: `releng` that you are following:
``
It seems like it mostly happens on aarch64 machines, but has also been seen on
[ppc64le]([https://koji.fedoraproject.org/koji/taskinfo?taskID=25873773). 

```
ApplianceError: Image status is FAILED: could not create appliance through libvirt.

Try running qemu directly without libvirt using this environment variable:
export LIBGUESTFS_BACKEND=direct

Original error from libvirt: File exists [code=89 int1=0]
```


Examples where we have seen this:

- [tracker](https://pagure.io/dusty/failed-composes/issue/106)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=25959092)
- [tracker](https://pagure.io/dusty/failed-composes/issue/96)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=25873773)
- [tracker](https://pagure.io/dusty/failed-composes/issue/103)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=25907748)
- [tracker](https://pagure.io/dusty/failed-composes/issue/93)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=25858017)
- [tracker](https://pagure.io/dusty/failed-composes/issue/87#comment-499900)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=25750250)
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
can we get some multi-arch specialists to look at this? @pwhalen ? 
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Patrick "マルタインアンドレアス" Uiterwijk]

puiterwijk added a new comment to an issue you are following:
``
This is not related to multi-arch (note that
https://koji.fedoraproject.org/koji/taskinfo?taskID=25858017 is x86_64).
I think that this is a race condition in Oz between cleaning up the previous step and
creating the guestfs VM for the next step, where it can't create the new VM because
the old one hasn't been entirely cleaned up yet but when it goes then look up the old
one, that one's been cleaned up.
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
>  This is not related to multi-arch (note that
> https://koji.fedoraproject.org/koji/taskinfo?taskID=25858017 is x86_64).
>  
You are right. I didn't catch that. Most of the ones I have seen were on aarch64 so I
was thinking it could have been related. 

>  I think that this is a race condition
>  
Yeah probably. Sucks that we just started seeing it happen more often. Or maybe it's
been happening for a while now and we just started looking closer at the results of
failable artifacts. 
``

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https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
Another example from today: [tracker](https://pagure.io/dusty/failed-composes/issue/110)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=26000046)

``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
Another example from today: [tracker](https://pagure.io/dusty/failed-composes/issue/129)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=26166161)
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
Another example from yesterday:
[tracker](https://pagure.io/dusty/failed-composes/issue/126)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=26141274)
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
this continues to be a problem:

Another example from today: [tracker](https://pagure.io/dusty/failed-composes/issue/203)
[task](https://koji.fedoraproject.org/koji/taskinfo?taskID=26569129)
``

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https://pagure.io/releng/issue/7408

[Mohan Boddu]

mohanboddu added a new comment to an issue you are following:
``
Probably we should take it to Oz.
``

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https://pagure.io/releng/issue/7408

[Dusty Mabe]

dustymabe added a new comment to an issue you are following:
``
https://pagure.io/dusty/failed-composes/issue/230
``

To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/7408

[Suzanne Yeghiayan]

The status of the issue: `intermittent `libvirtError: File exists` errors for imagebuild
tasks` of project: `releng` has been updated to: Closed as Fixed by syeghiay.

https://pagure.io/releng/issue/7408

[Suzanne Yeghiayan]

syeghiay added a new comment to an issue you are following:
``
This has been fixed. If it's still an issue, please reopen this ticket.
``

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https://pagure.io/releng/issue/7408