Re: [zeromq-dev] Failed to use zeromq2.2 to communicate with zeromq4.0.1

2013-11-26 Thread Pieter Hintjens
When a DEALER sends a message with one frame to a ROUTER, the ROUTER will deliver two frames; the identity, then the message. This is the same on 2.2 and 3.2 and 4.0. Your test code sends Hello without a training null byte and then tries to print the string. It also tries to print the identity

[zeromq-dev] Retrieving IP and Port number from connecting client

2013-11-26 Thread Mathias Hablützel
Hello, I was wondering if it was possible to somehow retrieve the IP and port from a connecting client in libzmq/czmq? thanks Mathias pgpjFWjjHLkvE.pgp Description: PGP signature ___ zeromq-dev mailing list zeromq-dev@lists.zeromq.org

[zeromq-dev] When unreliability is desired

2013-11-26 Thread Lindley French
I have a networking application that I'd like to use ZeroMQ in. However, my use-case demands minimum latency even at the expense of lost messages. I'm weary of using ZeroMQ's TCP transport because if packets are dropped, TCP will block further messages until it has retransmitted the last one, and

Re: [zeromq-dev] When unreliability is desired

2013-11-26 Thread Pieter Hintjens
Hi Lindley, The right solution would be to make a UDP transport for ZeroMQ. It's not a trivial project but could start with, for instance, just pub/sub (like PGM). It might be worth looking at Crossroads.io for that, which is abandoned but had afair a UDP transport, and shared the same original

Re: [zeromq-dev] Announce: libzmq/4.0.2 stable released

2013-11-26 Thread MinRK
I also cut pyzmq-14.0.1 yesterday, which bundles 4.0.3. On Sun, Nov 24, 2013 at 11:50 PM, Pieter Hintjens p...@imatix.com wrote: Hi all, There was a failing test case in 4.0.2 (error in a new test case, not the library), so we made a 4.0.3 release to fix that. Same place as usual. Sorry

Re: [zeromq-dev] Failed to use zeromq2.2 to communicate with zeromq4.0.1

2013-11-26 Thread 舒友村
Hi, Pieter Thanks for your immediate reply...I know that there are two frame which ROUTER would receive when DEALER peer send a message to ROUTER, the first frame is identity, and the second frame is my sent content..but I find that if the message sent from zeromq4.0.3 to zeromq2.2, two