Public bug reported: When the live snapshot happens it setups a 100% copy of the original file using libvirt/qemu to sync the disk to it using "Shallow" mode (this is the .delta file). From that .delta file it extracts the image and uploads it. The delta file remains till the upload completes which results in 3x space required for each snapshots.
To fix this issue, the .delta file can be removed once the image is extracted from the .delta file https://github.com/openstack/nova/blob/stable/pike/nova/virt/libvirt/driver.py#L2007-L2008 ** Affects: nova Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1881727 Title: Nova retains the 'delta' file for the entire snapshot upload time Status in OpenStack Compute (nova): New Bug description: When the live snapshot happens it setups a 100% copy of the original file using libvirt/qemu to sync the disk to it using "Shallow" mode (this is the .delta file). From that .delta file it extracts the image and uploads it. The delta file remains till the upload completes which results in 3x space required for each snapshots. To fix this issue, the .delta file can be removed once the image is extracted from the .delta file https://github.com/openstack/nova/blob/stable/pike/nova/virt/libvirt/driver.py#L2007-L2008 To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1881727/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
