On Tue, Jan 18, 2022 at 03:38:26PM +0100, Peter Krempa wrote:
The existence of the unix socket path is used by the remote driver to determine whether modular daemons are in use, so if the socket file stays behind and the user decided to switch from modular to monolithic daemon which was socket activated, the remote driver will insist on picking '/var/run/libvirt/virtqemud-sock', even when it's no longer in use:
# systemctl start libvirtd.service # virsh list Id Name State --------------------
# systemctl stop libvirtd.service Warning: Stopping libvirtd.service, but it can still be activated by: libvirtd.socket libvirtd-ro.socket libvirtd-admin.socket # systemctl start virtqemud.socket # virsh list Id Name State --------------------
# systemctl stop virtqemud.socket # systemctl start libvirtd.service # virsh list error: failed to connect to the hypervisor error: Failed to connect socket to '/var/run/libvirt/virtqemud-sock': Connection refused
# virsh -c 'qemu:///system?socket=/var/run/libvirt/libvirt-sock' list Id Name State --------------------
Fix this by instructing systemd to delete the socket file when deactivating the unit file for the socket.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> ---
Yes, please, I've hit this a few times already in the past couple of days. However - the service may still remain running when you stop the socket and as the man page states, it should still be possible to communicate with the service via the filesystem node, e.g. doing 'virsh list'. But I agree this is very annoying and I don't particularly like wiping /run/libvirt whenever I want to switch :( . Erik I'm still inclined to ACK the patch though...