[OpenSIPS-Users] REG::Multiple TCP Connections to Same Destination.

[Bogdan-Andrei Iancu]

Hello Ravitez,

OK, so you see data being pending for reading from UAS - are you sure 
the outbound TCP is the bottleneck ? have you tried to set some 
thresholds on the script to see what the slowest part ? Maybe it is not 
TCP related.

Best regards,

Bogdan-Andrei Iancu
   OpenSIPS Founder and Developer
   http://www.opensips-solutions.com

OpenSIPS Summit May 2017 Amsterdam
   http://www.opensips.org/events/Summit-2017Amsterdam.html

On 05/11/2017 06:41 PM, Ravitez Ravi wrote:
> Hello Bogdan,
>           Good Day,
>           Congestion happens on the receive Q of opensips(UAS -> 
> opensips) when UAS tries to send ~3000 messages in one second.
>           and  i see multiple tcp_connections being created to the 
> same destination (SBC) but based on the logic only the recent or the 
> last connection is
>           being used,when tcp_async is used i see readQ 
> (USA->opensips) not being read (still see n number of bytes).
>           Thank you.
>
> Regards,
> Ravitez.D
>
>
> On Thu, May 11, 2017 at 4:13 AM, Bogdan-Andrei Iancu 
> <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>
>     Hello Ravitez,
>
>     yes, there will be only one connection between OpenSIPS and SBC,
>     which will be shared between all the SIP workers. In OpenSIPS TCP,
>     there is no concept of "connection per child". Still, what is the
>     kind of congestion you are experience ? could you provide here
>     some more details ?
>
>     Best regards,
>
>     Bogdan-Andrei Iancu
>        OpenSIPS Founder and Developer
>        http://www.opensips-solutions.com <http://www.opensips-solutions.com>
>
>     OpenSIPS Summit May 2017 Amsterdam
>        http://www.opensips.org/events/Summit-2017Amsterdam.html
>     <http://www.opensips.org/events/Summit-2017Amsterdam.html>
>
>     On 05/01/2017 05:48 PM, Ravitez Ravi wrote:
>>     Hi Bogdan,
>>                    Good Day,
>>                    Thank you for reaching out.
>>                    Considering the below example,though we have
>>     multiple UAC
>>                    opensips creates only one tcp connection to SBC
>>     which is valid because it only sees the SBC
>>                    but this creates congestion and in few scenarios
>>     opensips creates too many tcp connections(bug).
>>                    in order to solve this i was thinking if we can
>>     have 1 tcp connection per child.
>>                    Please share your thoughts.
>>                    Thank you.
>>     Inline image 1
>>     Regards,
>>     Ravitez.D
>>     On Mon, May 1, 2017 at 4:43 AM, Bogdan-Andrei Iancu
>>     <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>>
>>         Hi Ravitez, OpenSIPS is doing connection reusage, so, if
>>         there IP destination is the same, the existing connection
>>         will be used. Why do you want to change this ? Best regards,
>>
>>         Bogdan-Andrei Iancu
>>            OpenSIPS Founder and Developer
>>            http://www.opensips-solutions.com
>>         <http://www.opensips-solutions.com>
>>
>>         OpenSIPS Summit May 2017 Amsterdam
>>            http://www.opensips.org/events/Summit-2017Amsterdam.html
>>         <http://www.opensips.org/events/Summit-2017Amsterdam.html>
>>
>>         On 04/28/2017 07:28 AM, Ravitez Ravi wrote:
>>>         Hello,
>>>                I have been using opensips 1.11.5 as a proxy between
>>>         the application server and clients,things were fine as each
>>>         client had a dedicated tcp connection to opensips.
>>>                once i introduced SBC ,opensips has only one TCP
>>>         connection to SBC .would it be possible to create multiple
>>>         TCP connections to the same destination?.
>>>                 eg :
>>>                      Each child having a TCP connection to the same
>>>         destination.
>>>              from what i understand is if a tcp connection exists to
>>>         a destination opensips passes on the fd to a requesting
>>>         child to send data.
>>>              please share your thoughts.
>>>         Regards,
>>>         Ravitez.D
>>>
>>>         _______________________________________________
>>>         Users mailing list
>>>         Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>>>         http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>         <http://lists.opensips.org/cgi-bin/mailman/listinfo/users>
>>
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