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Re: Ceph RBD issues in 4.11


This problem sounds like the one described here
https://github.com/apache/cloudstack/issues/2641.
It seems that it was already fixed and will go out in 4.11.1.0

On Thu, May 17, 2018 at 8:50 AM, Glen Baars <glen@xxxxxxxxxxxxxxxxxxxxxx>
wrote:

> Hello Dev,
>
> I have recently upgraded our cloudstack environment to 4.11. Mostly all
> has been smooth. ( this environment is legacy from cloud.com days! )
>
> There are some issues that I have run into:
>
> 1.Can't install any VMs from ISO ( I have seen this in the list previously
> but can't find a bug report for it ) If further reports or debug will help
> I can assist. It is easy to reproduce.
> 2.When a VM is created from a template, the RBD features are lost. More
> info below.
>
> Example of VM volume from template: -
>
> user@NAS-AUBUN-RK3-CEPH01:~# rbd info AUBUN-KVM-CLUSTER01-SSD/
> feeb52ec-f111-4a0d-9785-23aadd7650a5
>
> rbd image 'feeb52ec-f111-4a0d-9785-23aadd7650a5':
>         size 150 GB in 38400 objects
>         order 22 (4096 kB objects)
>         block_name_prefix: rbd_data.142926a5ee64
>         format: 2
>         features: layering
>         flags:
>         create_timestamp: Fri Apr 27 12:46:21 2018
>         parent: AUBUN-KVM-CLUSTER01-SSD/d7dcd9e4-ed55-44ae-9a71-
> 52c9307e53b4@cloudstack-base-snap
>         overlap: 150 GB
>
> Note the features are not the same as the parent : -
>
> user@NAS-AUBUN-RK3-CEPH01:~# rbd info AUBUN-KVM-CLUSTER01-SSD/
> d7dcd9e4-ed55-44ae-9a71-52c9307e53b4
> rbd image 'd7dcd9e4-ed55-44ae-9a71-52c9307e53b4':
>         size 150 GB in 38400 objects
>         order 22 (4096 kB objects)
>         block_name_prefix: rbd_data.141d274b0dc51
>         format: 2
>         features: layering, exclusive-lock, object-map, fast-diff,
> deep-flatten
>         flags:
>         create_timestamp: Fri Apr 27 12:37:05 2018
>
>
> If you manually clone the volume the expected features are retained. We
> are running the latest Ceph version, KVM hosts on Ubuntu 16.04 with the
> latest Luminous qemu-img.
>
> Kind regards,
> Glen Baars
>
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-- 
Rafael Weingärtner