On Mon, Aug 05, 2013 at 03:00:11PM +0200, Valerio Pachera wrote: > The problem is repeatable. > I've been also rebooting the hosts and formatting the cluster twice. > > root at test004:~# time qemu-img convert -f qcow2 wheezy_template.qcow2 > sheepdog:wheezy_template > real 0m38.084s > user 0m6.756s > sys 0m6.456s > > root at test004:~# time qemu-img convert -f qcow2 -t directsync > wheezy_template.qcow2 sheepdog:wheezy_template2 > real 3m4.104s > user 0m6.192s > sys 0m5.900s > > root at test004:~# time qemu-img convert -f qcow2 wheezy_template.qcow2 > sheepdog:wheezy_template3 > real 0m38.218s > user 0m6.620s > sys 0m6.456s > > qemu-system-x86_64 -name wheezy_template -enable-kvm -drive > file=sheepdog:wheezy_template,cache=writeback,if=virtio (do not work) > qemu-system-x86_64 -name wheezy_template2 -enable-kvm -drive > file=sheepdog:wheezy_template2,cache=directsync (works) > qemu-system-x86_64 -name wheezy_template3 -enable-kvm -drive > file=sheepdog:wheezy_template3,cache=directsync (work) > > I shutdown wheezy_template3 and use cache > qemu-system-x86_64 -name wheezy_template3 -enable-kvm -drive > file=sheepdog:wheezy_template3,cache=writeback (do not work) I've tracked down the culprit:the newly introduced backgroud pusher. But I am still in the way fixing the bug that cause qemu-img convert fail to transform images intact. Thanks Yuan |