[SR-Users] lost sip messages

[Alex Balashov]

Thanks, Fred!

In my opinion this comes down to the DB queries. None of them should be taking an unreasonable amount of time (so much time that a normal-ish amount of workers will suffice), and there should not be too many of them. 

—
Sent from mobile, with due apologies for brevity and errors.

> On Aug 1, 2019, at 9:07 PM, Fred Posner <fred at palner.com> wrote:
> 
>> On 8/1/19 7:52 PM, jay binks wrote:
>> --snip--
>> I have removed pike, and replicated without pike loaded.
>> Just for clarity sake, adding more workers 100% fixed the issue.
>> What im really seeking is a way to monitor for this scenario so I can graph it and not get caught out by surprise.
>> In the last day or 2, ive found that some of the DB Queries in my kam config were taking longer than they should ( for a few reasons ), so this will be a largly contributing factor, however ... it still comes back to, how do I monitor for packets being dropped because there was no worker.
>> Thanks all
>> Jay
>> ...
> 
> Alex Balashov wrote a fantastic article on this:
> 
> http://www.evaristesys.com/blog/tuning-kamailio-for-high-throughput-and-performance/
> 
> Lots of good tips and explanations in there... with a tl/dr; being there's no straight forward answer to reaping maximum benefit.
> 
> For example, you're using DB... which many of us do. Are you using HTABLE to cache information that can be cached? Perhaps instead of running a query on every hit, you can run it every 5 min... or cache the password and save some lookups on authentication, etc.
> 
> Anyway, lots of ways of approaching this and the article above is a great place to start.
> 
> Fred Posner
> fred at qxork.com
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