[zeromq-dev] Many to many
justin at affinix.com
Sun Feb 17 08:33:51 CET 2013
Bind vs connect is independent of socket type. You can bind a SUB socket and
connect many PUB sockets to it.
So, you could have each service bind a PUB socket and a SUB socket, and then
connect each to all other services' SUB sockets and PUB sockets respectively.
On Sunday, February 17, 2013 07:22:27 AM Lee Sylvester wrote:
> Thank you for your reply, Witney, but I need it the other way. I need a sub
> socket to be connected to multiple pub endpoints... This is because every
> instance will have a single publisher, telling all who is interested about
> events, but that same service will want to list to an arbitrary number of
> other services for their events. Essentially, I'd be forming a type of
> mesh, where each service has two endpoint (pub and sub) and all connect to
> all. I knew pub could connect to many, as it binds, but I'm guessing the
> subs cannot connect to many?
> Thanks loads,
> Sent from my iPhone
> On 17 Feb 2013, at 05:18, Whitney Jackson <whjackson at gmail.com> wrote:
> > > Is it possible for a sub socket to bind to multiple pub sockets?
> > Yes. You can call bind and/or connect on a socket as many times at you
> > like.>
> > > If so, where is there an example of this?
> > Here's an example from the guide where a pub socket is bound to multiple
> > endpoints:
> > http://zguide.zeromq.org/page:all#Getting-the-Message-Out
> > If you connect a sub socket to multiple endpoints then it gets a message
> > whenever any of the publishers to which it's connected send.>
> > On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester <lee.sylvester at gmail.com>
> >> Hey guys,
> >> So, I want to do a many to many pubsub. I already have a discovery
> >> mechanism and logging, but what I need is for a service to bind to a pub
> >> socket and subscribe to a set list of instances of itself on the server
> >> and other servers. The Zyre framework, although awesome, seems a little
> >> large for my needs as I already have a number of the features it
> >> supplies built in to my framework. Is it possible for a sub socket to
> >> bind to multiple pub sockets? If so, where is there an example of this?
> >> Can I also add a pub socket to listen to when all is already running?
> >> Thanks,
> >> Lee
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