[Dev] Existing p2p systems for getting offline node back up to date?

[Ray Ryan]

This is an excerpt from a discussion on the Design list.  
<http://lists.osafoundation.org/pipermail/design/2002-November/ 
000896.html>

On Monday, November 11, 2002, at 02:36  PM, Jeremy Hylton wrote:

>>>>>> "MCF" == Mike C Fletcher <mcfletch@rogers.com> writes:
>
>   MCF> Regarding peer-to-peer sharing: There are a number of
>   MCF> message-passing system (Spread and the like) which support
>   MCF> synchronisation with hosts which may be offline at the moment
>   MCF> the message is sent (without a centralised server).
>
> Spread is not such a system.  Spread will deliver a message to every
> current group member and provides a variety of reliability
> guarantees.  In all cases, a message is delivered to currently active
> group members.  It does not store messages.
>
> Spread is a very nice package, regardless.

If Spread doesn't support this kind of thing (catching up on messages  
delivered while offline, or otherwise getting back in sync), what does?

Ray