There is a problem with that, though---routers drop at HWM just like pubs. Same 
issue.

> On Jan 25, 2014, at 4:55 AM, Michael Scofield <[email protected]> wrote:
> 
> I think this may be achieved by the following arch:
> 
> 1. Establish 2 ROUTER sockets, router #1 is responsible for receiving 
> incoming requests, and router #2 is connected to router #1;
> 
> 2. Establish a DEALER socket per thread, and connect to router #2. And upon 
> connected, tell router #2 its interested "topic".
> 
> 3. Whenever a request comes in, router #1 just send it to router #2. Router 
> #2 send the message to different thread through the DEALER socket according 
> to the DEALER socket's interested "topic" and the message's type.
> 
> I believe the above arch is some pattern in the guide (however, I just can't 
> recall it). 
> 
>> On 2014年01月16日 23:54, Lindley French wrote:
>> A problem I was wrestling with was, how do I deal with a TCP connection 
>> where messages of different types may arrive, and may need to be dealt with 
>> in different threads? The TCP socket can't be touched directly by multiple 
>> threads, of course. The obvious solution was to immediately forward messages 
>> arriving on the TCP socket to an inproc socket.
>> 
>> I then took it one step further: why not make that inproc socket a PUB 
>> socket and make the first part of each message be a topic identifier, so 
>> that whichever thread knows how to deal with a particular message can just 
>> subscribe to it and ignore the rest?
>> 
>> That's a great design, right up until I try to do it with the TCP socket 
>> being a ROUTER. Now, no matter what the first part of the sent message is, 
>> the identity will end up being the first part on the receiving end. The 
>> PUB/SUB won't work without some tweaking.
>> 
>> I don't want to just drop the identity; that's useful information. I could 
>> swap the first two parts; that will work, but it's unintuitive and could 
>> cause confusion down the road.
>> 
>> Any other ideas?
>> 
>> 
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