RE: virsh not connecting to libvertd ?
As soon as I umount cephfs virsh is able to talk to libvirtd.
I tested the cephfs with:
df (no problem)
dd if=/dev/zero of=/cephstorage/a.img bs=1G count=1 oflag=dsync (no
problem created random1G file, no I/O issues.)
After mounting cephfs and restarting libvirtd "virsh" hangs again.
Obviously virsh and libvirtd don't like the cephfs mount.
I am just starting to debug the potential problem with cephfs and
libvirtd/virsh.
I originally noted when this problem occurred on two hypervisors the
problem occurred a couple days a part which matched some updates that
took
place. I have not tried rolling back patches yet.
I am curious if anyone uses cephfs filesystem and had similar problems
recently.
I used to use the cephfs until I got the issues with the kernel mount version and fuse was
just to slow. So now I am having a nfs-ganesha mount. Occasionally I have (had) issues
connection issues virsh/virt-manager, which are related to guest having iso images linked
media.
It looks like this got a lot less when I started removing the iso medias from vm's.
When I do have this lockup, I could fix it by doing a 'umount -l /mnt/vps-isos'. I
don't think this was specific to libvirt as a ls -l /mnt/vps-isos would 'hang'
also.