[zeromq-dev] Fwd: Beginner question with respect to zmq_proxy

Fri Dec 28 11:54:36 CET 2012

If anyone read this solution and wondered like I did about backwards
compatibility, the zmq FAQ goes into a bit more detail about it here:

http://www.zeromq.org/area:faq#toc6

It sounds like this shouldn't be an issue going forwards (i.e. backwards
compatibility is an aim)

Andy

On 27 December 2012 18:19, Nishant Mittal <nmittal at rblt.com> wrote:

> upgrading the version to 3.2.2 fixed the issue.
>
> thanks to everyone for chiming in :)
>
>
> On Thu, Dec 27, 2012 at 11:47 AM, Nishant Mittal <nmittal at rblt.com> wrote:
>
>> Andy, taotetek on IRC suggested to try telnet.. and i confirmed telnet
>> works in both directions.. so it couldnt be the firewall.. rt?
>>
>> pieterh thinks it could be the version mismatch on the 2 machines.. 1 has
>> 3.2.0 and the other (my machine) has 3.2.2
>>
>> I am going to upgrade the version and see if that fixes this.
>>
>> thanks
>>
>>
>> On Thu, Dec 27, 2012 at 11:45 AM, Andy Ballingall TF <
>> ballingall at thefoundry.co.uk> wrote:
>>
>>> ... and
>>>
>>> sudo service iptables start
>>>
>>> restarts the firewall again, I should add!
>>>
>>> On 27 December 2012 16:44, Andy Ballingall TF
>>> <ballingall at thefoundry.co.uk> wrote:
>>> > On 27 December 2012 16:16, Nishant Mittal <nmittal at rblt.com> wrote:
>>> >> they are on the same network.. i can check if Ubuntu firewalls are
>>> playing a
>>> >> role..
>>> > The easiest thing to do (if safe to do so) would be to temporarily
>>> > switch off the firewall entirely. If it starts working, then that's
>>> > the reason! If you're using iptables, try:
>>> >
>>> > sudo service iptables stop
>>> >
>>> > ...on both machines. If the problem persists, (and your firewall is
>>> > iptables), then the problem is elsewhere.
>>> >
>>> > Andy
>>> >
>>> >>
>>> >>
>>> >> On Thu, Dec 27, 2012 at 11:13 AM, Andy Ballingall TF
>>> >> <ballingall at thefoundry.co.uk> wrote:
>>> >>>
>>> >>> Could it be a firewall issue?
>>> >>>
>>> >>> On 27 December 2012 16:03, Nishant Mittal <nmittal at rblt.com> wrote:
>>> >>> > Apostolis, client knows how to resolve 'nishant' and the request is
>>> >>> > actually
>>> >>> > coming to the worker.. its the response thats not going back.
>>> >>> > and i tried with IP as well, same result.
>>> >>> >
>>> >>> > thanks
>>> >>> >
>>> >>> >
>>> >>> >
>>> >>> > On Thu, Dec 27, 2012 at 10:36 AM, Apostolis Xekoukoulotakis
>>> >>> > <xekoukou at gmail.com> wrote:
>>> >>> >>
>>> >>> >> How can the client know what "nishant" means? Put the ip address
>>> >>> >> instead.
>>> >>> >>
>>> >>> >> 2012/12/26 Nishant Mittal <nmittal at rblt.com>
>>> >>> >>>
>>> >>> >>> Hi All,
>>> >>> >>> I have a zmq_proxy device with ROUTER and DEALER in the front
>>> and back
>>> >>> >>> (attached code broker.c)
>>> >>> >>> router binds to tcp://*:5551 and dealer binds to tcp://*:6551
>>> >>> >>> the client connects to router with a REQ socket as
>>> tcp://nishant:5551
>>> >>> >>> and
>>> >>> >>> worker connects to dealer with a REP socket as tcp://nishant:6551
>>> >>> >>> where
>>> >>> >>> nishant is the hostname of the machine..
>>> >>> >>>
>>> >>> >>> the above works fine
>>> >>> >>>
>>> >>> >>> however, if I move the client to another machine.. the worker
>>> sees the
>>> >>> >>> request but the client doesn't get any response.. what am I doing
>>> >>> >>> wrong?
>>> >>> >>>
>>> >>> >>> thanks in advance for your help.
>>> >>> >>>
>>> >>> >>> --
>>> >>> >>> Nishant Mittal
>>> >>> >>>
>>> >>> >>>
>>> >>> >>> _______________________________________________
>>> >>> >>> zeromq-dev mailing list
>>> >>> >>> zeromq-dev at lists.zeromq.org
>>> >>> >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>> >>> >>>
>>> >>> >>
>>> >>> >>
>>> >>> >>
>>> >>> >> --
>>> >>> >>
>>> >>> >>
>>> >>> >> Sincerely yours,
>>> >>> >>
>>> >>> >>      Apostolis Xekoukoulotakis
>>> >>> >>
>>> >>> >>
>>> >>> >> _______________________________________________
>>> >>> >> zeromq-dev mailing list
>>> >>> >> zeromq-dev at lists.zeromq.org
>>> >>> >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>> >>> >>
>>> >>> >
>>> >>> >
>>> >>> > _______________________________________________
>>> >>> > zeromq-dev mailing list
>>> >>> > zeromq-dev at lists.zeromq.org
>>> >>> > http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>> >>> >
>>> >>>
>>> >>>
>>> >>>
>>> >>> --
>>> >>> Andy Ballingall
>>> >>> Senior Software Engineer
>>> >>>
>>> >>> The Foundry
>>> >>> 6th Floor, The Communications Building,
>>> >>> 48, Leicester Square,
>>> >>> London, WC2H 7LT, UK
>>> >>> Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
>>> >>> Web: http://www.thefoundry.co.uk/
>>> >>>
>>> >>> The Foundry Visionmongers Ltd.
>>> >>> Registered in England and Wales No: 4642027
>>> >>> _______________________________________________
>>> >>> zeromq-dev mailing list
>>> >>> zeromq-dev at lists.zeromq.org
>>> >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> --
>>> >> Nishant Mittal
>>> >> Director, Product Development
>>> >> Rosenblatt Securities Inc.
>>> >> 20 Broad Street
>>> >> New York, NY 10005
>>> >>
>>> >> Direct: 212-607-3159
>>> >> Mobile: 646-504-2629
>>> >>
>>> >> _______________________________________________
>>> >> zeromq-dev mailing list
>>> >> zeromq-dev at lists.zeromq.org
>>> >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>> >>
>>> >
>>> >
>>> >
>>> > --
>>> > Andy Ballingall
>>> > Senior Software Engineer
>>> >
>>> > The Foundry
>>> > 6th Floor, The Communications Building,
>>> > 48, Leicester Square,
>>> > London, WC2H 7LT, UK
>>> > Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
>>> > Web: http://www.thefoundry.co.uk/
>>> >
>>> > The Foundry Visionmongers Ltd.
>>> > Registered in England and Wales No: 4642027
>>>
>>>
>>>
>>> --
>>> Andy Ballingall
>>> Senior Software Engineer
>>>
>>> The Foundry
>>> 6th Floor, The Communications Building,
>>> 48, Leicester Square,
>>> London, WC2H 7LT, UK
>>> Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
>>> Web: http://www.thefoundry.co.uk/
>>>
>>> The Foundry Visionmongers Ltd.
>>> Registered in England and Wales No: 4642027
>>> _______________________________________________
>>> zeromq-dev mailing list
>>> zeromq-dev at lists.zeromq.org
>>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>>>
>>
>>
>>
>> --
>> *Nishant Mittal*
>> Director, Product Development
>> *Rosenblatt Securities Inc*.
>> 20 Broad Street
>> New York, NY 10005
>>
>> Direct: 212-607-3159
>> Mobile: 646-504-2629
>>
>
>
>
> --
> *Nishant Mittal*
> Director, Product Development
> *Rosenblatt Securities Inc*.
> 20 Broad Street
> New York, NY 10005
>
> Direct: 212-607-3159
> Mobile: 646-504-2629
>
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
> http://lists.zeromq.org/mailman/listinfo/zeromq-dev
>
>

-- 
Andy Ballingall
Senior Software Engineer

The Foundry
6th Floor, The Communications Building,
48, Leicester Square,
London, WC2H 7LT, UK
Tel: +44 (0)20 7968 6828 - Fax: +44 (0)20 7930 8906
Web: http://www.thefoundry.co.uk/

The Foundry Visionmongers Ltd.
Registered in England and Wales No: 4642027
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