Reviewed: https://review.openstack.org/50932 Committed: http://github.com/openstack/nova/commit/19e2b7ddfc7035565e75444e5813a9d195c85bfb Submitter: Jenkins Branch: milestone-proposed
commit 19e2b7ddfc7035565e75444e5813a9d195c85bfb Author: Jiajun Liu <[email protected]> Date: Thu Aug 22 11:45:18 2013 +0800 fallocate image only when user has write access Libvirt will change instance's ownership when the instance became power off which will make nova-compute service unable to hard reboot instance bacause the nova-compute service has not write access. This commit will allocate space for image only the first time we create image. fixes bug 1200113 Change-Id: Id81b09ade5f870665f5ffabab3cde144c6dec210 (cherry picked from commit c246fb37e20197be27264a36515725233085df1d) ** Changed in: nova Status: Fix Committed => Fix Released -- 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/1200113 Title: hard reboot fails with preallocate_images=performance Status in OpenStack Compute (Nova): Fix Released Bug description: I have in /etc/nova/nova.conf preallocate_images=performance for obvious speed reasons. I had the need to hard reboot some instances (somehow soft reboot does not seem to work often with me) and I got this error in the logs for every instance: 013-07-10 18:53:40.638 DEBUG nova.utils [req-911ae4d0-6a75-416f-b3d7-b281793cbfdc 93178802ad6f48e8aea05cc7ba195859 876e74dbf00f44418c6a61d83c5b7ce8] Running cmd (subprocess): fallocate -n -l 42949672960 /var/lib/nova/instances/abbb258d-f851-4f4e-81ee-0b8334d331d2/disk execute /usr/lib/python2.7/dist-packages/nova/utils.py:208 2013-07-10 18:53:40.652 DEBUG nova.utils [req-911ae4d0-6a75-416f-b3d7-b281793cbfdc 93178802ad6f48e8aea05cc7ba195859 876e74dbf00f44418c6a61d83c5b7ce8] Result was 1 execute /usr/lib/python2.7/dist-packages/nova/utils.py:232 2013-07-10 18:53:40.653 ERROR nova.compute.manager [req-911ae4d0-6a75-416f-b3d7-b281793cbfdc 93178802ad6f48e8aea05cc7ba195859 876e74dbf00f44418c6a61d83c5b7ce8] [instance: abbb258d-f851-4f4e-81ee-0b8334d331d2] Cannot reboot instance: Unexpected error while running command. Command: fallocate -n -l 42949672960 /var/lib/nova/instances/abbb258d-f851-4f4e-81ee-0b8334d331d2/disk Exit code: 1 Stdout: '' Stderr: 'fallocate: /var/lib/nova/instances/abbb258d-f851-4f4e-81ee-0b8334d331d2/disk: open failed: Permission denied\n' Basically the hard reboot tries to re-allocate the disk space (which - in this case? - is already allocated) and fails because the disk file is owned by root (I think) rather than nova. Doing a chown nova:nova on the disk files resolves the issue for me. I see three (combined) options: 1) do not try to reallocate in case it is already the right size 2) execute the fallocate part under root 3) make sure the disk is owned/writeable by nova To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1200113/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
