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Re: [Qemu-devel] migration network requirements

From: Dr. David Alan Gilbert
Subject: Re: [Qemu-devel] migration network requirements
Date: Wed, 20 May 2015 10:21:19 +0100
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 
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:

> Any ideas are appreciated :) Thanks!

How is it failing?


> -- 
> Alexey
Dr. David Alan Gilbert / address@hidden / Manchester, UK

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