Re: KVM call agenda for Mar 16

Juan Quintela
2010-03-16T09:18:07Z

Chris Wright <chrisw@redhat.com> wrote:
> Please send in any agenda items you are interested in covering.

Migration:
- flexible migration: I hope to sent an RFC patch on time for the
call. idea is to use subsections.

- callbacks. block migration introduced several callbacks:
* cancel()
* get_status()
* release()
in spice we need now another to callbacks: on_start() and on_end().
* on_start(): tells spice that migration has started (it will then
manage certificates, passwords, ... itself)
* on_end(): it is called when migration ends. spice use it to
transparently connect to the new host and user don't have to "reconnect"

- what to do on migration error:
- target side: libvirt folks want the program to print a message if
it fails. Current code spent 100% cpu time doing select on a closed
fd. (patches already on the list to make it wait without using
cpu).
- source side: current behaviour if migration fails is to stop the
vm. We have requests to make it continue (remember that this is
live migration). what to do? adding a paramenter like the block
layer:
migration_error=[stop|continue]
any better ideas.

- block migration: it added the set_params() callback, investigating
why. I think that it can be done with inside block_save_live(), but I
haven't investigated it fully yet.

Later, Juan.

> thanks,
> -chris