At 2017-12-16 09:26:32, "John Ferlan" <jferlan(a)redhat.com> wrote:
On 12/14/2017 06:16 AM, Chen Hanxiao wrote:
> From: Chen Hanxiao <chenhanxiao(a)gmail.com>
>
> Some services, such as Nova, check whether device was not found
> by errror messages "not found". [1]
error
>
> This patch unify logs of qemuDomainDetachDeviceLive, which will be helpful.
>
> [1]
https://github.com/openstack/nova/blob/master/nova/virt/libvirt/guest.py#...
>
> Signed-off-by: Chen Hanxiao <chenhanxiao(a)gmail.com>
> ---
> src/qemu/qemu_hotplug.c | 18 +++++++++++-------
> 1 file changed, 11 insertions(+), 7 deletions(-)
>
Something about a tool that parses the error message(s) looking for a
specific message string in English and needing to alter libvirt sources
to match that tools' needs strikes me as incorrect and a "slippery
slope" to follow.
I'm not in favor of this because we'll be constantly chasing these types
of bugs to match some other tools' (what I think is) incorrect means to
handle errors.
Agree.
But we don't have enough error code to cover all of scenario.
For qemuDomainDetachDeviceDiskLive, VIR_ERR_OPERATION_FAILED can be
"disk not found", also can be "cannot hot unplug multifunction PCI
device"
in the following call of qemuDomainDetachVirtioDiskDevice.
So the tools powered by libvirt had to find a workaround by
analyzing error messages...
Regards,
- Chen