[zeromq-dev] which pattern to use

Michal Singer michal at leadspace.com
Mon Nov 5 12:58:14 CET 2012


Thanks for the fast replyJ

The problem with this that it uses ROUTER as broker as this is a
request-reply pattern and I don't want the reply to necessarily return to
the sender but instead to anyone which is listening in the same group of
senders.

 

From: zeromq-dev-bounces at lists.zeromq.org
[mailto:zeromq-dev-bounces at lists.zeromq.org] On Behalf Of Pieter Hintjens
Sent: Monday, November 05, 2012 12:14 PM
To: ZeroMQ development list
Subject: Re: [zeromq-dev] which pattern to use

 

You can probably base this off the Majordomo pattern.

 

On Mon, Nov 5, 2012 at 10:48 AM, Michal Singer <michal at leadspace.com> wrote:

Hi.

I am new with ZMQ. I am checking it out to use for a distributed system. I
am reading the guide but I can't find an exactly suited pattern for our
needs.

I need a pattern for:

.         a services oriented system: one which consists of groups of
service, let's say group A (A1, A2, A3,.), group B (B1,B2,B3,..), group
C(C1,C2,C3,.)

.         These services are like 'workers'

.         Each service from each group can send a request to one service
from each of the other groups

.         The reply from the destination service can go to any of the other
services from the sending group

 

Something like this:

 

A1 (send request to)->B2 (send reply to)->A2 (send request to )->C1 (send
reply to )->A1

 

 

It is some sort of a push-pull where any service should have a 'PUSH' and
'PULL' socket.

It is also some kind of a dealer to dealer type of a pattern, though it is
important that the reply can return to any of the sending group.

 

I got to chapter 6 and couldn't find any good examples of the PUSH-PULL
pattern and it seems like I need one to fully cover all scenarios of
reliability and so on.

 

What should I do?

 

Thanks in advance, Michal

 


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