Take a look at the setsockopt() call: ZMQ_IDENTITY: Set socket identity
The *ZMQ_IDENTITY* option shall set the identity of the specified *socket* when connecting to a ROUTER socket. The identity should be from 1 to 255 bytes long and may contain any values. If two clients use the same identity when connecting to a ROUTER, the results shall depend on the ZMQ_ROUTER_HANDOVER option setting. If that is not set (or set to the default of zero), the ROUTER socket shall reject clients trying to connect with an already-used identity. If that option is set to 1, the ROUTER socket shall hand-over the connection to the new client and disconnect the existing one. Option value type binary data Option value unit N/A Default value NULL Applicable socket types ZMQ_REQ, ZMQ_REP, ZMQ_ROUTER, ZMQ_DEALER. On Fri, Aug 24, 2018 at 2:28 PM, Sam Stein <sam.st...@tempustechnologies.com > wrote: > The documentation for a ROUTER socket says: “When receiving messages a > *ZMQ_ROUTER* socket shall prepend a message part containing the *identity* > of the originating peer to the message before passing it to the > application.” > > > > When our bound endpoint goes down, it drops currently pending requests to > a text file. > > > > <NEWREQUEST> > > 008000002D > > > > Hello world > > </NEWREQUEST> > > > > When we boot a new one, it can read these files, but it can’t identify the > client in question because the identifier was unique to the previous > socket. It has no concept of who this “008000002D” client is (or sends it > to a new client it has identified with this tag). > > > > The question is, can we force a ROUTER socket to use a unique identity > provided by the client instead of making one up on its own? > > > > Thank you, > > > > Sam Stein > > Software Developer > > > > Tempus Technologies, Inc. > > > > _______________________________________________ > zeromq-dev mailing list > zeromq-dev@lists.zeromq.org > https://lists.zeromq.org/mailman/listinfo/zeromq-dev > >
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