Hi Pieter, Thank you for the quick response.
The behaviour I was thinking about would be very simple: when the router socket encounters a connection with an already taken identity, it allows the new connection to assume that identity. >From my very limited knowledge of the code, it seems that the router socket >maintains a map of the identity to a pair of pipes that can have queued >messages. So hopefully this 'identity switch' would maintain these queues. >That is, any queued messages would have to be transferred to the queues for >the new connection, rather than just dropping them. This new behaviour could be enabled via a new flag for zmq_setsockopt. However, it would have to assume a trusted/secured network. What do you think? - Mark. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Pieter Hintjens Sent: June-27-13 2:05 PM To: ZeroMQ development list Subject: Re: [zeromq-dev] ROUTER sockets and IDENTITY 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 <[email protected]> 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. > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
