If you are using credit-based flow control then you shouldn’t care about the HWM settings. Set them to infinite.
cr On Aug 21, 2014, at 1:17 PM, Gabriel Sanchez <[email protected]> wrote: > Hi, > > I am trying to implement credit-based flow control from Chapter 7 of the > guide using ROUTER-DEALER. However, I am dropping messages on the ROUTER side > when reaching the SNDHWM. If I set the maximum amount of credits to a > fraction of the SNDHWM I don't drop any messages. I checked the code in > pipe.cpp and saw that the reader side of the pipe only notifies the writer > when it has read a multiple of the LWM. > > Does this mean that if the number of messages written by the ROUTER to a peer > pipe approaches the SNDHWM and in the meantime I get more credits before the > reader reaches the LWM I may drop messages? If so, are there any workarounds? > I was thinking of setting the maximum credit value to SNDHWM - LWM to ensure > that the number of messages written doesn't go above the SNDHWM. > > I am using libzmq 3.2.3 and I noticed that in newer versions there's a patch > for notifying the application when sending a message to a ROUTER fails. > > Thanks in advance > > Gabriel > _______________________________________________ > 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
