Hi Andreas,

Firstly, thanks for you patience, what you've said sounds very good for me,
but I still have some doubts (or some worries):

a) Does Kannel allways store a message before contacting a SMSC and
vice-versa an Application?  Is this true for SMS-MT, SMS-MO and DLR
messages?
b) If I send 100000 messages to Kannel at 100 messages/second but the target
SMSC receives at just 5 messages/second, Does Kannel enqueue all messages
and submit them at the lower speed?  Will the bottlenecked messages be
handled in ram memory or the store file?
c) What are the differences between stable version 1.0.3 and development
version 1.1.6 regarding messages persistence?

Forgive some many questions.

Best regards.

-----Original Message-----
From: Andreas Fink [mailto:[EMAIL PROTECTED]]
Sent: sexta-feira, 17 de maio de 2002 19:56
To: Mauricio Ramos
Cc: [EMAIL PROTECTED]
Subject: Re: Serious concern about persistence in Kannel
Importance: High


><<
>I was evaluating the Kannel 1.0.3 (software itself and userguide.html) and
>realized such functionality isn't there, is it?  Now I want to move to
1.1.6
>but reading its userguide.html I understood there is persistence only in
DLR
>messages through a mysql database.>>

This is for keeping track of matching DLR's to their URL when they come
back.
You should take a look at the store file feautre, this is your crash 
saver if kannel ever crashes (which it very rarely does).

Using MySQL for DLR is recommended for large volumes. Of course you 
can also do the same thing in your application because the chances 
that a message gets lost on the way is minimal and would only be 
possible during a few miliseconds between the submission to kannel 
and the submission to the SMSC and vice versa. Also if kannel crashes 
before sending the ACK to the SMSC the SMSC will keep the message 
stored.

And at the end kannel's access log gives you tracking possibilities.

-- 

Andreas Fink
Fink-Consulting

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