+++ This bug was initially created as a clone of Bug #1647041 +++ Description of problem: [This is a formal request to have this backported to OSP13 when BZ1647041 land in OSP16.1.] Images uploaded to ceph via the glance command line utility do not maintain image file sparseness. Version-Release number of selected component (if applicable): All current versions. How reproducible: Every time. Steps to Reproduce: 1. Upload sparse raw image to ceph backed glance images via command line. Actual results: Image is uploaded but file sparseness is not maintained. Expected results: Image sparseness maintained thus reducing ceph storage overhead. Additional info: I suspect this issue is not limited to just ceph backed glance images but all images uploaded with the glance utility. We've found the following two previous bugs requesting this feature. - https://bugzilla.redhat.com/show_bug.cgi?id=1373643 - http://tracker.ceph.com/issues/17178 Additionally there is a workaround published on the ceph website that shows how to put sparse images into ceph and then add them into glance manually. - https://ceph.com/planet/importing-an-existing-ceph-rbd-image-into-glance/
We will not backport this feature to OSP13.