Hi Rich, On Wed, November 16, 2016 1:34 pm, Richard W.M. Jones wrote: > On Wed, Nov 16, 2016 at 11:31:40AM -0500, Derek Atkins wrote: >> > Running `virt-v2v -v -x ...' and observing the output will give you a >> > good idea of what precisely it was doing for those hours. >> >> Well, as I said in my original email, it was hanging at running >> setfiles: >> >> commandrvf: stdout=n stderr=y flags=0x0 >> commandrvf: setfiles -F -e /sysroot/dev -e /sysroot/proc -e >> /sysroot/selinux -e /sysroot/sys -r /sysroot -q >> /sysroot/etc/selinux/targeted/contexts/files/file_contexts /sysroot/ >> Can't stat exclude path "/sysroot/selinux", No such file or directory >> - ignoring. > > OK that's interesting. setfiles is doing SELinux labelling of the > filesystem. The time taken should be approximately proportional to > the number of files in the filesystem. > > What it precisely does is to run the host's /usr/sbin/setfiles command > over the whole guest filesystem, using the guest's > /etc/selinux/targeted/contexts/files/file_contexts to control the > labelling. So if either of the guest filesystem or the guest's > file_contexts is particularly large, or setfiles has a bug, then it > might take a long time.
I suppose there could be a bug. I just verified that it's absolutely setfiles: 14:06:20 I: Started virt-v2v -v -x -i ova /ovirt/import/fc21-64.ova -of raw -o null 14:06:20 O: [ 0.0] Opening the source -i ova /ovirt/import/fc21-64.ova [snip] 14:07:25 E: libguestfs: trace: v2v: aug_get = "targeted" 14:07:25 E: libguestfs: trace: v2v: aug_close 14:07:25 E: guestfsd: main_loop: new request, len 0x28 14:07:25 E: guestfsd: main_loop: proc 26 (aug_close) took 0.03 seconds 14:07:25 E: libguestfs: trace: v2v: aug_close = 0 14:07:25 E: libguestfs: trace: v2v: selinux_relabel "/etc/selinux/targeted/contexts/files/file_contexts" "/" "force:true" 14:07:25 E: guestfsd: main_loop: new request, len 0x6c 14:07:25 E: commandrvf: stdout=n stderr=y flags=0x0 14:07:25 E: commandrvf: setfiles -F -e /sysroot/dev -e /sysroot/proc -e /sysroot/selinux -e /sysroot/sys -r /sysroot -q /sysroot/etc/selinux/targeted/contexts/files/file_contexts /sysroot/ 14:07:25 E: Can't stat exclude path "/sysroot/selinux", No such file or directory - ignoring. [ Spacing Emphasis Mine -- there is no break (except time) here ] 16:00:42 E: libguestfs: trace: v2v: selinux_relabel = 0 16:00:42 O: virt-v2v: This guest has virtio drivers installed. 16:00:42 E: libguestfs: trace: v2v: rm_f "/.autorelabel" 16:00:42 E: guestfsd: main_loop: proc 467 (selinux_relabel) took 6797.01 seconds 16:00:42 E: guestfsd: main_loop: new request, len 0x3c [SNIP] 16:01:13 I: Finished with exitcode 0 So it looks like it took almost two hours to run the setfiles on a 4GB filesystem. The rest of the import was only a minute or three. I'm happy to help debug this however I can in order to fix any potential bugs. However I admit it probably wont affect me any more -- I don't expect to migrate many more VMs. Still, I'm happy to work towards the common good. :) > Rich. > > -- > Richard Jones, Virtualization Group, Red Hat > http://people.redhat.com/~rjones > Read my programming and virtualization blog: http://rwmj.wordpress.com > virt-p2v converts physical machines to virtual machines. Boot with a > live CD or over the network (PXE) and turn machines into KVM guests. > http://libguestfs.org/virt-v2v -derek -- Derek Atkins 617-623-3745 [email protected] www.ihtfp.com Computer and Internet Security Consultant _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
