[zeromq-dev] Queuing to multiple workers and receiving multiple responses as a single multi-part message.

[John Smith]

Hello,

I have a particular use case which I am not sure how to handle.  I want to
send a single request to many workers and have that message processed in
parallel by each worker.  Each worker should then send a response which
should make its way back to the originator of the request.  I've attached a
diagram which should hopefully explain what i'm on about.

I thought I could set it up using a forwarder and a req/xrep socket.  When
send the message "0" (0x30) from the req socket, my xreq sockets receives:

"\x00\xC8s\x7F\xAB\xD8\x8DI\xD6\xB1\x98\xFD\xA7\xECO.L"
""
"\x00\xC8s\x7F\xAB\xD8\x8DI\xD6\xB1\x98\xFD\xA7\xECO.L"
"0"

as a multi-part message.  I'm not sure what these fields mean, but is the
first part the to address, the next part should be the from address, then a
blank, then the message?  If so, then I don't know the return address to
send my message back to.

Any ideas on how to accomplish this with zmq?

Thanks,
Dave
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