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xen-devel
Re: [Xen-devel] RFC: "local" communications
Rik van Riel wrote:
Hi,
When combining clustering with cluster storage, the situation
arises where virtual machines are not only managed by the cluster
software, but also need to participate in the cluster software
themselves...
In order for this to work better, it would be good if there
was a way for software in a domU to communicate with software
on the local dom0 - so after being migrated elsewhere, a guest
would start talking to the new dom0 automatically.
Now what I'm not sure about is, what would be the best way to
do this?
Should it be some virtual device analogous to the virtual
network driver, or should we have some other kind of socket
for node local communications ?
What kind of approach would the Xen community (that's you, if
you read this far) prefer ?
I can only speak for myself, but I'd personally like to see a small
userspace library that established a datagram connection between two
domains (using an event channel and a shared page) that could be reused
for many applications.
If it could be used with normal read/write calls that would be even
better (although first thought is that that would require a daemon).
Regards,
Anthony Liguori
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