[zeromq-dev] Issue using zmq req-res with nodejs

Doron Somech somdoron at gmail.com
Sat May 14 12:37:22 CEST 2016


Pieter was working on new nodejs binding out of czmq, maybe you can use
that?

On Fri, May 13, 2016 at 8:50 AM, Prasad Ghawate <prasad.ghawate at anzu.org>
wrote:

> Hello,
>
>
>
> I am trying to get help on this past 2 days . We are using default request
> response Patten for communication between different modules  on the server
> after first deployment on GCP cloud, while load test we encounter issue
> where for multiple requests at a time to a modules stops receiving request
> at some point of time .
>
>
>
> Following are things we checked for this.
>
> 1.       Sample zmq req- response application as mentioned in below email
> (was able to reproduced the issue, responding module hangs and does not
> accept further requests.)
>
> 2.       Tired adding monitoring for socket event in sample ( didn’t
> help). https://www.npmjs.com/package/zmq
>
> 3.       Found no issues with memory and CPU usages .
>
> 4.       Tried Setting up ZMQ_HWM = 0, ZMQ_SWAP etc. for the sample
> program didn’t helped. http://api.zeromq.org/2-1:zmq-setsockopt
>
> 5.       Currently looking at http://zguide.zeromq.org/php:chapter4 for
> reliable request response Patten .
>
>
>
> Am I checking in right direction ? please suggest.
>
>
>
> Regards,
>
> Prasad.
>
>
>
> *From:* Prasad Ghawate [mailto:prasad.ghawate at anzu.org]
> *Sent:* Thursday, May 12, 2016 11:43 AM
> *To:* 'zeromq-dev at lists.zeromq.org' <zeromq-dev at lists.zeromq.org>
> *Subject:* Issue using zmq req-res with nodejs
>
>
>
> Hello,
>
>
>
> I am using zmq (request- response) with node js everything works well on
> my development Ubuntu machine. But when i deploy code on Cloud GCP server
> (Ubuntu). For multiple requests with pause of 100 ms the responder stops
> receiving  requests. PFA  Please help. I am using npm zmq v 2.15.1 on both
> dev and cloud server machine. I am using request response example from
> http://blog.rastating.com/using-zeromq-with-node-js/ For testing with 100
> Ms interval instead of 1000 ms .
>
> Requester :
>
> [image: cid:image001.jpg at 01D1AD05.7F96DC50]
>
> Responder :
>
> [image: cid:image002.png at 01D1AD05.7F96DC50]
>
> Regards,
>
> Prasad
>
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
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>
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