[zeromq-dev] UDP message with zeromq 2.0beta

[Martin Sustrik]

Guo,

> Hi Martin, I am trying the simple test program for udp, and I setup a 
> simple pair of server/client on my machine. Out of 10 messages, I only 
> get like 4 or 5 messages successfully received. I understand that UDP 
> doesn't guarantee that all message to be delivered , but I think the 
> success rate is just too low. Did you see the same for your testing?

There's no real storage for the messages on the network switch or 
elsewhere, so you won't get historical messages. For example: Send a 
message, close the sender application. Open the receiver application, 
ask for message => you'll get nothing. You have to have both 
applications running to guarantee lossless semantics.

Martin