[zeromq-dev] Brokerless State Synchronization

Pieter Hintjens ph at imatix.com
Fri Jan 18 00:15:37 CET 2013

You might enjoy the Zyre framework, from Chapter 8 of the Guide; it
doesn't do distributed state but it does provide much of the chat
architecture you want. Nodes are fully interconnected; it's aimed at
local groups (e.g. clouds).


On Thu, Jan 17, 2013 at 9:23 PM, Evan Todd <et1337 at gmail.com> wrote:
> I'm working on a system analogous to a chat service. It has the following
> requirements:
> - Must be brokerless and able to add or lose nodes without corrupting the
> state
> - Each chatroom holds a max of X users which can be connected to different
> nodes in the cluster
> - Upon accepting a client connection, we have to find a chatroom that is
> neither full nor empty, or create a new one
> I originally solved this with the Clone pattern, so each node kept a full
> in-memory list of all the chatrooms, and a broker kept them in sync. The
> guide doesn't cover the decentralized version of this though. What would
> that look like? Or better yet, is there a solution that doesn't involve
> state synchronization?
> Thanks,
> ~Evan
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