Hi Nova folks and OpenStack operators!

I have had some trouble recently where while using the "images_type = rbd" libvirt option my ceph cluster got filled up without I noticing and froze all my nova services and instances.

I started digging and investigating why and how I could prevent or workaround this issue, but I didn't find a very reliable clean way.

I documented all my steps and investigation in bug 1908133 [0]. It has been marked as a duplicate of 1522307 [1] which has been around for quite some time, so I am wondering if any operators have been using nova + ceph in production with "images_type = rbd" config set and how you have been handling/working around the issue.

Thanks in advance!

[0] https://bugs.launchpad.net/nova/+bug/1908133

[1] https://bugs.launchpad.net/nova/+bug/1522307

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