On 12/03/2013 04:19 AM, William MARTIN wrote: > I have read some mails on the mailing-list about that. > > What's the actual status of mognrel2-1.9 about that ? > Does they have any data flux control to regulate data stream from > handler to m2 ? I.E Sending file with size in Go. > > If yes, does someone have a sample code about that ?
Hi William, The way you do outbound flow control with m2 is to use the control port, and this is the case regardless of version (even 1.9). The only change in 1.9 is that you can now specify a different control port per server by setting the control_port field on the server objects in the config, which is nice if you run multiple m2 instances. Flow control for uploads is newly possible in 1.9 using acknowledgements via zmq. Someday I'd like to look at making outbound flow control work this way too, but currently you must use the control port. For reference, you can check out my m2adapter project, which converts m2's protocol to "ZHTTP" (http://rfc.zeromq.org/spec:33). It fully handles inbound/outbound flow control as well as HTTP versioning stuff (persistence, chunking). For outbound flow control it periodically queries the control port. https://github.com/fanout/pushpin/tree/master/m2adapter Justin
