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Re: [Qemu-devel] migration network requirements
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From: |
Dr. David Alan Gilbert |
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Subject: |
Re: [Qemu-devel] migration network requirements |
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Date: |
Wed, 20 May 2015 10:21:19 +0100 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
* Alexey Kardashevskiy (address@hidden) wrote:
> Hi!
>
> Recent bugreports from our testers at IBM about failed migration across USA
> (for example, from NY to TX) made me wonder - what are the actual basic
> requirements/expectations for migration?
Oh that's fun.
> In what network is it normally tested (I use 1Gb/10Gb local network without
> routers)?
That's also my main test, but in the end it's just a TCP stream, so lots of
bandwidth,
not that fussy about latency.
> Is there any reconnect/restart mechanism if the connection dropped (libvirt,
> qemu)?
No; one unbroken TCP connection; if you want some reconnect/restart
then tunnel the TCP oversomething that handles that.
> Is there any document describing network requirements (libvirt, qemu)?
Don't think so; libvirt has lots of different modes where it can
tunnel stuff as well, see:
http://www.libvirt.org/migration.html#transporttunnel
> Any ideas are appreciated :) Thanks!
How is it failing?
Dave
>
> --
> Alexey
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK