Ceph / Swift cannot disable Object Versioning by sending empty X-Versions-Location header

[Rudy McComb]

Ceph / Swift Cannot Disable Object Versioning.

It seems that ceph or swift is unable to disable object versioning. It appears that this is enabled by default for MOS 9.1, Ceph Hammer. Tried setting this to True then back to False and it still made no difference.

Bug filed on 2/8/17
http://tracker.ceph.com/issues/18852
https://github.com/ceph/ceph/pull/13303

Also followed instructions here to verify if object versioning was enabled or disabled.
https://docs.openstack.org/user-guide/cli-swift-set-object-versions.html

Is RGW object versioning hard coded in MOS 9.1 for a reason or is this not its intended outcome.

[Radoslaw Zarzynski (rzarzynski)]

RadosGW in Ceph Hammer doesn't support for Swift API's
object versioning. This feature has been introduced in
Jewel. Thus, marking the bug as invalid.

[Scott Machtmes (smachtmes)]

So is this information that Mirantis provided not accurate?: https://www.mirantis.com/software/openstack/what-is-new-in-8-0/

[Kostiantyn Danylov (kdanylov)]

FUEL 8.0 relased with ceph hammer, which does support object versioning via S3 API(not via Swift API) - http://ceph.com/releases/v0-94-hammer-released/. You don't need take any special actions to turn it on, just use standard S3 API.

> So is this information that Mirantis provided not accurate?
Probably S3 need to be mentioned in notes explicitly.

[Radoslaw Zarzynski (rzarzynski)]

For Ceph Jewel (which isn't in MOS) disabling the Swift's object
versioning is supported with the X-Remove-Versions-Location HTTP
header -- exactly like described in the Swift's documentation [1].

What was not supported is doing that by sending an empty
X-Versions-Location header. However, this is fixed in master now
and the backport process is on the way [2].

I've updated bug titles also in upstream to underline that.

[1] https://docs.openstack.org/developer/swift/overview_object_versioning.html#how-to-disable-object-versioning-in-a-swift-cluster
[2] http://tracker.ceph.com/issues/19176

[Vitaly Sedelnik (vsedelnik)]

Won't Fix for 9.x - we won't update Ceph from Hammer to Jewel in MUs for 9.2