Chuck, yes, some clients need replies (and use REQ), other do not (and use PUSH).
I am aware of DEALER and I understand that it is proper (at least documented) way to accomplish my goal, but 1. REQ and PUSH look more natural and elegant than all this fuss with DEALER. 2. I have some already developed clients use PUSH and would prefer to keep the code intact. That is why I wonder if it is eligible to pair PUSH and ROUTER sockets. Thanks. 13.11.2012, 20:33, "Chuck Remes" <[email protected]>: > No, you should not use PUSH and ROUTER together. Your use-case mentions that > *some* clients need to send a reply. A PUSH socket is send-only so you would > never be able to receive those replies. > > I recommend that you use DEALER and ROUTER sockets for your use-case. See > this article for some important details. > > http://www.zeromq.org/tutorials:dealer-and-router > > There is no requirement that a ROUTER socket must reply to a DEALER socket. > You could have 95% of communications be unidirectional and the 5% that > require replies would be bidirectional. > > Perhaps you would like to explain your requirements in more detail and we can > provide more guidance on socket and pattern choice. > > cr > > On Nov 13, 2012, at 10:22 AM, Ilja Golshtein <[email protected]> wrote: > >> Hello, List! >> >> Is it eligible to pair PUSH and ROUTER sockets? >> >> I have clients send requests require answers and >> clients who send some data to server and do not expect a response. >> It seems technically possible to have either PUSH or REQ at client side >> and serve both types of input by ROUTER socket. >> >> When ROUTER receives data, it looks like >> routing parts, then empty part, then application data in case of REQ and >> routing parts (which is useless) just before application data in case of >> PUSH. >> Assuming the first application part is not empty, everything seems Ok. >> >> Advantages >> 1. No poll at server side. >> 2. One TCP port to open and to keep in mind. >> >> Caveats? >> >> zeromq 2.2, linux. >> >> -- >> Best regards >> Ilja Golshtein >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev -- Best regards Ilja Golshtein _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
