[aprssig] Centralised message server

[Andrew Rich]

Just did an experiment, loaded up a mysql table with a message.

Went for a drive and the message was delivered on heard.

Now to work on the message numbers and acks.

Seems effiecient to only try on heard and kill on ack.

Andrew VK4TEC

----- Original Message ----- 
From: "Lynn W. Deffenbaugh (Mr)" <ldeffenb at homeside.to>
To: "TAPR APRS Mailing List" <aprssig at tapr.org>
Sent: Saturday, November 21, 2009 12:50 PM
Subject: Re: [aprssig] Centralised message server


> Keith VE7GDH wrote:
>> Personally, I don't think it's a good idea for some server to hold
>> messages for later delivery. The sender should send the message and
>> get an ACK... or not. We all know that no ACK doesn't necessarily mean
>> the recipient didn't get the message, but an ACK does mean that they
>> definitely did. Clients like UI-View can send a message <n> times and
>> then "retry on heard" if necessary. If it's the original sender
>> sending or re-sending the message, it's them that's receiving the ACK.
>> I think it would add a layer of complication if they had to check
>> elsewhere to see if an ACK had been sent by the recipient.
>>
>
> Your preference is exactly the reason for the message from the server
> offering to buffer and retry (not everyone is running UI-View or keeps
> it online for "retry on heard" to work) as well as offering the 3rd
> option to never offer again to that station.  I definitely wouldn't want
> a server delivering MY messages later unless I gave it permission to -
> on each and every occurrance.
>
> As for the "check elsewhere for the ack", that'd be a good addition to
> my proposed design.  When a buffered message is finally delivered to (or
> denied by) the recipient, a positive acknowledge could be sent back to
> the originator (and automatically buffered) indicating that the message
> was (or was not) delivered along with a date/time stamp.
>
> Lynn (D) - KJ4ERJ
>
>
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