[libvirt] [PATCH v4 0/4] Implement migrate-getmaxdowntime command

[John Ferlan]

On 08/17/2017 06:17 PM, Scott Garfinkle wrote:
> Currently, the maximum tolerable downtime for a domain being migrated is
> write-only. This patch implements a way to query that value nondestructively.
> 
> I've tried to incorporate the feedback from v3; however, I've left alone a
> couple of places where the feedback would have diverged from parallelism with
> the existing migrate-setdowntime help/info. Also, since the main use of this
> new command is likely to be (as in virt-manager) in combination with 
> migrate-setmaxdowntime, I don't think it's going to really help to add an
> options to report this in some other unit other than milliseconds.
> 
> To-do: Ought to revisit setmaxdowntime to use the new preferred qemu interface.
> 
> Changes from [v3]:
> 
> * Incorporated suggestions, including adding an error message
> * Added a patch to the news.xml file
> 
> [v1} https://www.redhat.com/archives/libvir-list/2017-July/msg00908.html
> [v2} https://www.redhat.com/archives/libvir-list/2017-July/msg01010.html
> [v3} https://www.redhat.com/archives/libvir-list/2017-July/msg01301.html
> 
> Scott Garfinkle (4)
>     Add virDomainMigrateGetMaxDowntime public API
>     qemu: Implement virDomainMigrateGetMaxDowntime
>     virsh: Add support for virDomainMigrateGetMaxDowntime
>     docs: document migrate-getmaxdowntime support
> 
> ---
>  docs/news.xml                    | 10 +++++++
>  include/libvirt/libvirt-domain.h |  4 +++
>  src/driver-hypervisor.h          |  6 +++++
>  src/libvirt-domain.c             | 41 ++++++++++++++++++++++++++++
>  src/libvirt_public.syms          |  4 +++
>  src/qemu/qemu_driver.c           | 58 ++++++++++++++++++++++++++++++++++++++++
>  src/qemu/qemu_monitor.h          |  3 +++
>  src/qemu/qemu_monitor_json.c     |  4 +++
>  src/remote/remote_driver.c       |  1 +
>  src/remote/remote_protocol.x     | 16 ++++++++++-
>  src/remote_protocol-structs      |  8 ++++++
>  tools/virsh-domain.c             | 42 +++++++++++++++++++++++++++++
>  tools/virsh.pod                  |  6 +++++
>  13 files changed, 202 insertions(+), 1 deletion(-)
> 
> --
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This is now pushed - I also generated/sent python and perl binding patches.

Tks -

John