Hi, Agalya!

1) Regarding connection reuseoptimization,I haven't done any research on this topic. In other words, libcurl will be managing its connections through its default settings/ parameters, whichever they are. The module is mature enough, maybe now is a good time to lookinto thisfeature.


2) Since you're doing lots of obviously blocking operations (HTTP transfers), then you will definitely need more processes. However, I noticed lots of transfers are quickly completed, withoutrequiring async, so you don't want too many processes if all requests worklike that. Just tune according to your needs until you find a sweet spot. You could even share the performance results, I'd love to hear some feedback.

Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

On 19.09.2016 17:57, Ramachandran, Agalya (Contractor) wrote:

Hi team/Liviu,

Couple of  questions for clarification.

1)I see for every HTTP request(for both sync and async), TCP ports are being opened and closed.

Are we not using same port and pooling the request in a particular port if we are hitting simultaneous requests?

2)Children parameter in the config file - I understand the use case of this is to spawn multiple threads.

If we want to handle more load in OpenSIPS, we should increase this number correct?

So when increasing this number of children process we should take care of CPU utilization and according to the no of CPU and RAM we used in our Linux system.

Correct me if am wrong in my understanding of the above questions.

Regards,

Agalya

*From:*Liviu Chircu [mailto:li...@opensips.org]
*Sent:* Thursday, September 15, 2016 3:53 AM
*To:* Ramachandran, Agalya (Contractor) <agalya_ramachand...@comcast.com>; OpenSIPS users mailling list <users@lists.opensips.org>
*Subject:* Re: FW:[OpenSIPS-Users] Asynchronous operation for REST queries

On 14.09.2016 21:33, Ramachandran, Agalya (Contractor) wrote:

    Are you going to add one more parameter “connect_polling_interval”
    and what will be use case of it?

    Is it replacement for 10% wait time logic?

Yes.

    Also, I observed in the case of async call, it takes ~90 to 100ms
    to open the port itself. Is this expected behavior?

Yes.


Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

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