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Posted to commits@cloudstack.apache.org by GitBox <gi...@apache.org> on 2018/05/18 06:55:24 UTC

[GitHub] wido commented on issue #2650: Ceph RBD Feature flag update

wido commented on issue #2650: Ceph RBD Feature flag update
URL: https://github.com/apache/cloudstack/issues/2650#issuecomment-390113044
 
 
   I remember now :) This is leftover code from when libvirt didn't support cloning volumes yet.
   
   Libvirt supports cloning a RBD image: https://libvirt.org/git/?p=libvirt.git;a=blob;f=src/storage/storage_backend_rbd.c;h=642cacb67362424b00e905bab324dad98dd98e8e;hb=HEAD#l945
   
   We should call that function in libvirt to clone the image:
   - https://libvirt.org/sources/virshcmdref/html/sect-vol-clone.html
   - https://libvirt.org/docs/libvirt-appdev-guide-python/en-US/html/libvirt_application_development_guide_using_python-Storage_Pools-Cloning.html
   
   This should be supported by the libvirt Java bindings as well, so I think we can already do this.

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