[messaging] Group messaging consistency under resource constraints

Trevor Perrin trevp at trevp.net
Fri Oct 10 09:09:34 PDT 2014

On Fri, Oct 10, 2014 at 3:34 AM, Ximin Luo <infinity0 at pwned.gg> wrote:
> On 10/10/14 10:24, Trevor Perrin wrote:
>> It would be good to have an algorithm that works for transports where
>> there isn't a server seeing all messages and providing reliable
>> retransmission (e.g. SMS, Google Cloud Messaging, email, Pond).  But
>> even where a server is available for this, the reliability you're
>> asking for is costly.
> I *have* an algorithm that works without a central server. I did not try to optimise for "least messages", or "small message sizes", though - because I don't know what I should be optimising for.

In an asynchronous setting you can't assume other parties are online
to retransmit.  With no central server to retransmit, how does your
algorithm work?


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