[Operators] Message delivery

Peter Kieser peter at kieser.ca
Mon Oct 28 20:54:46 UTC 2013

What servers currently support this? ejabbered doesn't: 


On 2013-10-28 3:17 AM, Kevin Smith wrote:
> On Mon, Oct 28, 2013 at 10:11 AM, Tomek Nagisa <kaworu at k2t.eu 
> <mailto:kaworu at k2t.eu>> wrote:
>     First my message on group, so hi everyone.
>     And now I have question, do we have any XEP that allows server
>     (and client) to know wherever message was received by client (and
>     server) on closest node?
>     Why do I need it, consider the following:
>     1. Connection is dropped because client's router exploded, but
>     client does not know about it (yet);
>     2. Client (or server) send some messages;
>     3. TCP-stack notices problem and drops faulty connection;
>     I know, exploding routers are not very common these days, but
>     connection drops does occur. And since there is a time window
>     between point 1 and 3 - messages are lost and nobody knows about
>     it. And this is serious problem in non-reliable networks.
>     So I want to do something like this:
>     * If message is sent
>     * on next hop, receiving entity must acknowledge it's reception
>     * if it does not do that it in (configurable) time, connection is
>     dropped, and:
>     ** if we are server, message will be left in offline queue and
>     redelivered when client  reconnects (or delivered to another
>     connected resource);
>     ** if we are client, we can inform user about the problem or put
>     message “on-hold” and try to redeliver it when connection will be
>     reestablished;
>     AMP would be nice for this but AMP works only on client->server
>     and does not provide "delivery/always" (or something like that)
>     condition.
> XEP-0198 is exactly what you need.
> /K

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