[zeromq-dev] ROUTER sockets and IDENTITY

[Pieter Hintjens]

You're right, the reconnection will be refused the right to reuse the
identity. We could change this if you can find a sensible semantic.

-Pieter

On Thu, Jun 27, 2013 at 4:20 PM, Mark Barbisan <Mark.Barbisan at evault.com> wrote:
> Hello,
>
> ZeroMQ supports multiple NICs for its sockets. If a client gets disconnected with queued messages, it will automatically try to reconnect with the other available NICs. However, there is a problem if the client has set its socket identity (using ZMQ_IDENTITY). The identity does not change upon reconnect. A server with a ROUTER socket that receives the new client's connection will see the same ZMQ_IDENTITY again. However, since the new incoming connection uses a different address (due to a different NIC) but has the same identity, the ROUTER socket will automatically place it into a list of "anonymous" connections. The client has no way of receiving responses.
>
> Does ZeroMQ provide a facility to reassign identities for the clients of ROUTER sockets?
>
> Thanks,
>
> - Mark.
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