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I have seen it mentioned that ZMQ supports a many-to-many PUB/SUB relation.

In this case what I would like is to have multiple subscribers to multiple publishers, (this is for a common bus style application), however what I am confused about is how to physically implement it since I have also seen it mentioned that there can only be a single bind and multiple connections to that bound socket.

Thus I am slightly confused as to how to achieve this.

I have seen that pgm may be a way to acheive this (since all members would connect to the same multicast address), but I am not sure how to physically do that...

user3666197
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Cjen1
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1 Answers1

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Q : how to physically implement it

A PUB_A on a Computer A PUB_A.bind()-s, any SUB may .connect() there, onto A

A PUB_B on a Computer B PUB_B.bind()-s, any SUB may .connect() there, onto B

A rev_PUB_C on any host rev_PUB_C.connect()-s to a few or many SUB-s, who've had a previously successful SUB_xyz.bind() onto their respective local address(es)

And the merry-go-round goes on, as the distributed system designer likes it to let the show evolve.

halfer
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user3666197
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  • So literally just call connect from a subscriber to on each of the publishers addresses? – Cjen1 Oct 30 '19 at 13:17
  • **Roger, exactly that** [ or may similarly let, with legal and mirrored setup & fully functional result, let some `SUB`-s do also their own **`.bind()`** and also let all the respective `PUB`-s **`.connect()`** to This Herd of { Normal | Reversed | Dual-Mode } `SUB`-s ] ...... that's cool either :o) – user3666197 Oct 30 '19 at 15:03