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It seems there was a bug introduced in Kilo and then fixed in Liberty [6].
However, since there are more users of Kilo than of Liberty, I am wondering
if the fix has been back ported to Kilo. I could not find it except for
this one [7] which seems to be a different issue.

[6] https://review.openstack.org/#/c/200039/
[7] https://bugs.launchpad.net/cinder/+bug/1465819

On Thu, Oct 1, 2015 at 3:00 AM, Ivan Kolodyazhny <e0ne at e0ne.info> wrote:

> Hi team,
>
> I know that Block Device Driver (BDD) is not popular in Cinder community.
> The main issues were:
>
> * driver is not good maintained
> * it doesn't feet minimum features set
> * there is no CI for it
> * it's not a Cinder way/it works only when instance and volume are created
> on the same host
> * etc
>
> AFAK, it's widely used in Sahara &  Hadoop communities because it works
> fast. I won't discuss driver's performance in this thread. I share my
> performance tests results once I'll finish it.
>
> I'm going to share drive updates with you about issues above.
>
> 1) driver is not good maintained - we are working on it right now and will
> fix any found issues. We've got devstack plugin [1] for this driver.
>
> 2) it doesn't feet minimum features set - I've filed a blueprint [2] for
> it. There are patches that implement needed features in the gerrit [3].
>
> 3) there is no CI for it - In Cinder community, we've got strong
> requirement that each driver must has CI. I've absolutely agree with that.
> That's why new infra job is proposed [4].
>
> 4) it works only when instance and volume are created on the same host -
> I've filed a blueprint [5] but after testing I've found that it's already
> implemented by [6].
>
>
> I hope, I've answered all questions that were asked in IRC and in comments
> for [6]. I will do my best to support this driver and propose fix to delete
> if community decide  to delete it from the cinder tree
>
>
> [1] https://github.com/openstack/devstack-plugin-bdd
> [2]
> https://blueprints.launchpad.net/cinder/+spec/block-device-driver-minimum-features-set
> [3]
> https://review.openstack.org/#/q/status:open+project:openstack/cinder+branch:master+topic:bp/block-device-driver-minimum-features-set,n,z
> [4] https://review.openstack.org/228857
> [5]
> https://blueprints.launchpad.net/cinder/+spec/block-device-driver-via-iscsi
> [6] https://review.openstack.org/#/c/200039/
>
>
> Regards,
> Ivan Kolodyazhny
>
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