[kolla][glance][cinder] issues with show_image_direct_url and show_multiple_locations in wallaby

Gene Kuo igene at igene.tw
Thu Jul 22 01:34:18 UTC 2021


Hi,

I've checked the log and the issue you're having is probably this bug:
https://bugs.launchpad.net/cinder/+bug/1931004

The fix is currently under review upstream.
A quick solution to this issue is to set the rbd_store_chunk_size to 8 in cinder.conf which will make the stripe size of cinder same as glance.

Regards,
Gene Kuo


‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

在 2021年7月22日 星期四 上午 2:58,J-P Methot <jp.methot at planethoster.info> 寫道:

> Hi,
>
> As you might already know if you read this mailing list, I've been
>
> trying to push Kolla into production for a while. This issue however
>
> might be more Glance and Cinder related than Kolla. We're trying to
>
> provision an Openstack Wallaby cluster on Ubuntu using Kolla and Ceph
>
> pacific. The issue I now have is that, if I try to provision a Ceph
>
> volume from an image stored in Ceph, I get the following error :
>
> https://pastebin.com/59EZbxKu
>
> By looking around a bit, I figured out that this is linked to the
>
> following mailing list email :
>
> https://www.spinics.net/lists/ceph-users/msg66016.html
>
> Ceph copy on write cloning breaking because Cinder can't work
>
> ifshow_image_direct_url is set to true is a pretty big issue, I believe.
>
> It's possible that this has been talked about before, but there's no
>
> other trace I could find outside of that Ceph mailing list email.
>
> Additionally, in Kolla, setting show_image_direct_url to false doesn't
>
> solve this issue because by default, Kolla appears to also set
>
> show_multiple_locations to true. By setting show_multiple_locations to
>
> false through a custom configuration, I am able to create volumes from
>
> glance Ceph images again (images have to be re-uploaded for this to work
>
> though). Of course, these volumes are not created through copy-on-write,
>
> because that's broken.
>
> I couldn't find any bug report pertaining to these issues. If they are
>
> not known, then I would be happy to make a bug report. I would just like
>
> to verify if this is all already known or not.
>
>
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Jean-Philippe Méthot
>
> Senior Openstack system administrator
>
> Administrateur système Openstack sénior
>
> PlanetHoster inc.



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