[OpenSIPS-Users] Load Balancing

[Bogdan-Andrei Iancu]

Hi Jorge,

The errors you mentioned are not LB related at all it seems that your 
rtpproxy is not answering (and opensips blocking in communication with it).

To try to see what is your slowest part in the script, you can do script 
troubleshooting via exec_msg_threashold (see 
http://www.opensips.org/Resources/DocsCoreFcn18#toc49) - this will list 
you the most time consuming functions from the script if the threshold 
is hit.

Regarding the DB, I suggest db_mode 2 (delayed) as it has a lower impact 
on performance.

Regards,

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


On 12/07/2012 12:53 AM, Jorge Ortea wrote:
> Hello Bogdan-Andrei,
>
>
> When I said that load_balance function returns null I meant that after 
> run it $du is null.
>
> These are some errors just before that load_balance function fails:
>
> ERROR:mediaproxy:send_command: did timeout waiting for an answer
> ERROR:uri:check_username: No authorized credentials found (error in 
> scripts)
> ERROR:uri:check_username: Call {www,proxy}_authorize before calling 
> check_* functions!
>
> I don't know if these errors mean anything for you. My OpenSIPS 
> version is 1.6.4-2
>
>
> Parsing your words I think that perhaps OpenSIPS+Mediaproxy hasn't 
> hardware resources enough . Further db_mode parameter of dialog module 
> is 1-REALTIME, Can be it detrimental to performance too?
>
> My DB is MySQL 5.1 with Engine=MyISAM. Is there any document about 
> optimal configuration parameters for mysql ?
>
>
> Very much Thanks.
> Regards.
>
>
> ------------------------------------------------------------------------
> Date: Thu, 6 Dec 2012 15:33:27 +0200
> From: bogdan at opensips.org
> To: users at lists.opensips.org
> CC: darham at hotmail.com
> Subject: Re: [OpenSIPS-Users] Load Balancing
>
> Hi Jorge,
>
> LB modules is quite stable, maybe the status was not updated.
>
> I cannot comment on the issues you had with the throughput as LB 
> depends on Dialog, dialog uses DB, so it really depends on how good is 
> your configuration.
>
> LB function cannot return NULL, but a negative return code if no 
> destination was selected - the logs should indicate you the nature of 
> the failure. It is all about reading logs :)
>
> Now, about DR - with 1.8 you can spread the load over multiple GWs in 
> the same rule - simply put all the GWs in a list in the rule and when 
> doing do_routing, use the W (weight parameter).
>
> Regards,
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
> On 12/06/2012 02:11 PM, Jorge Ortea wrote:
>
>     Hi all,
>
>     I have a voip platform with OpenSIPS and several asterisk behind.
>     I'm using Load-Balancer module, but I don't seem very reliable,
>     sometimes when take place very much CPS, load_balance function
>     returns null.
>
>     I noticed that Load-Balancer module has beta status, perhaps that
>     is why this module has not enough stability. However, I don't know
>     how can I reach distribute calls on platform, Drouting module does
>     not seem can to do it, this module flood delivers up to the next,
>     Am I right?
>
>     What other option can offer OpenSIPS?
>
>     Thanks.
>     Regards.
>
>
>     _______________________________________________
>     Users mailing list
>     Users at lists.opensips.org  <mailto:Users at lists.opensips.org>
>     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20121207/f19ab452/attachment.htm>