Re: [vserver] VServer and Multicasting

From: Michael S. Zick <>
Date: Fri 21 Jan 2011 - 14:02:24 GMT
Message-Id: <>

On Fri January 21 2011, Furgerot Julien wrote:
> On Fri, Jan 14, 2011 at 5:47 PM, Herbert Poetzl <> wrote:
> > services binding to inside a Linux-VServer guest
> > will be automagically limited to the assigned IP addresses,
> > which in turn means, if you assign different IP addresses
> > to different guests, they will live happily side by side
> > even if the services inside the guests bind to
> You are right, I have tested when the VM is bound to one IP address
> and it works fine !
> However, in my configuration each VServer is bound to many IP
> addresses in order to be able to receive/send from/to many multicast
> addresses that are allocated on demand. Thus, I was wondering whether
> it is any hint so that to restrict sockets on to be bound to
> only one of these associated IP addresses ? Is there any patch that
> can overcome this problem ?

Why not just run a vserver per multicast address?

Your whatever-it-is application is probably running an instance
per multicast address anyway (perhaps as a thread).

If you "hashify" the on-disk files, you'll only have a single
copy of those files (on-disk and in-memory) -
So even running a few hundred context-per-address vservers would
probably not be all that resource intensive.

> Again, thank you for all,
> Julien
Received on Fri Jan 21 14:02:40 2011

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