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<p>Hi everybody!<br>
<br>
I am testing spread toolkit to implement the comunication between<br>
Tills/PointOfSales systems and a store server for a store system and<br>
I have some dudes about the functionality and use of spread.<br>
<br>
First some facts about the enviroment:<br>
- All my tests are develop with spread 3.17.03 using the python wrapper<br>
(Spread Module 1.5).<br>
- For this first test I am running all the programs in the same machine.<br>
<br>
<br>
The system should not lost any of the PointOfSales sales information. The<br>
problem is that sometimes the network is down from few minutes to two days or more. I think that I should use SAFE_MESS type of messages,b ut in the test when I send more rapid that the other program can process the information the send call fail (-8 connection closed by spread). I suposse that the spread daemon don't save the messages in a persistent media so I can lost messages....<br>
<br>
-what should do to garantee that all the sales go to the store server???<br>
(without any losses and in the same order that the clients generate de information)<br>
-Should I insert into a DB on the client, send to the store server and insert<br>
in a DB??? (like a persistent Queues)<br>
-Can the receptor program ack the message after it process it? (to prevent<br>
power failures between the msg reception and its process)<br>
- Some hint/docs/ideas about the desing the comunication solution of this kind of systems (N info producers and 1 info receptor/processor)? <br>
<br>
<br>
<br>
Thanks in advance<br>
<br>
Sorry for my english<br>
<br>
--<br>
<br>
Eduardo Ferro Aldama<br>
Desarrollo TPVs (Gestión Stock)<br>
Tlf 91 5142101<br>
Ext:2101<br><br>
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