[zeromq-dev] Zeromq Paranoid Pirate & Majordomo examples.

KIU Shueng Chuan nixchuan at gmail.com
Sat Aug 23 23:28:23 CEST 2014


In your req2Router.cpp file, the RCVMORE socket option uses int64_t. It
changed from int64_t in zmq 2.2 to int in zmq 3.2.x and later.
On 24 Aug 2014 04:53, "Riskybiz" <riskybizlive at live.com> wrote:

> Dear 0MQ developers,
>
>
>
> For some months I've been trying to get the Paranoid Pirate & Majordomo
> patterns working so that I may study their operation and implement the
> principles in some new development work I have in mind.  What I would like
> to achieve is relatively simple.
>
>
>
> ·         Using 0MQ networking I would like several sources (REQ?) of
> time-series data to pass any accumulated time series data history to a
> central point (ROUTER?).
>
> ·         When the accumulated data history has been passed then the
> sources would pass real time updates to the central point; as and when the
> new data are generated.
>
> ·         I would like the data flows to be asynchronous and that the
> data sources 'push' data to the central point.
>
> ·         It is important that no data is lost due to slow joiner
> syndrome.  It is also important that the data arrives in the correct order;
> otherwise the data will be gobbledegook.
>
> ·         A facility to detect when data sources have died/gone away,
> heartbeating.
>
> ·         Preferably to I'd like to work in C++; it's familiar.
>
> ·         Windows 7 compatibility is essential, I am tied to using
> Windows it is where the data sources will run.
>
>
>
> In working through the problems getting Paranoid Pirate & Majordomo to
> work  I came to suspect that the problem lay in the REQ-ROUTER connection
> which is present in both the Paranoid Pirate and Majordomo patterns.  This
> stackoverflow question explains some of approaches I've tried:  Stackoverflow
> question
> <http://stackoverflow.com/questions/24597251/zeromq-issues-with-example-networking-patterns-paranoid-pirate-and-majordomo>
>
>
>
> I even tried building CZMQ on Windows 7 so that I could try the C language
> original versions of the Paranoid Pirate & Majordomo patterns.  Have you
> tried building CZMQ on Windows; it's just a nightmare?  The provided Visual
> Studio solution file just didn't work and the instructions are practically
> non-existent.  Searching the internet for help found  rocket scientists
> <http://lists.zeromq.org/pipermail/zeromq-dev/2013-October/022981.html>
>  proposing cross compilation as the solution; but where to start with
> that?  Really should it be that difficult?  All I could see there was
> another month of lost weekends.  So all in all that was a dead end.
>
>
>
> Seeking answers & further investigating REQ-ROUTER I discovered this
> example: simple req2Router example
> <http://thisthread.blogspot.co.uk/2012/05/very-simple-req-router-example.html>
> and built it into a working Windows program. The cpp  & header file code
> for it are here  req2Router cpp file <http://pastebin.com/g66mzGm9> and zmq2.h
> header file <http://pastebin.com/yti8jUEc> .
>
>
>
> What I discovered was that this simple req2Router program would function
> properly when linked against zeromq-2.2.0 but would *not* function when
> linked against zeromq-3.2.3 or zeromq-4.0.4.  N.B. When running tests I
> ensured that the corresponding libzmq.dll file was used from the relevant
> version of zeromq. Could this be the problem in getting the Paranoid Pirate
> & Majordomo examples to work; that the example code is zeromq version
> dependant?  Does anyone know why this might be the case? What has changed
> between versions which would affect the REQ-ROUTER functionality?
>
>
>
> I really am stuck and getting tangled with this and am losing time to it.
> I cannot move forward with the plan I have in mind until I can get working
> implementations of Paranoid Pirate,  Majordomo & Asynchronous Majordomo on
> Windows as a foundation on which to build.  It's doubly difficult because I
> want to learn from the examples but debugging them at the same time is
> testing to say the least.
>
>
>
> Is anyone able to help get these examples working with the latest versions
> of zeromq on Windows, not just for my sake but also for the next person who
> tries?  Surely I can't be the only person who needs or wants to try this?
>
>
>
> With thanks,
>
>
>
> Riskybiz.
>
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>
>
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