freeradius load and message handling

[Arran Cudbard-Bell]

> On Jun 14, 2016, at 4:00 PM, liran kessel <lirankessel at gmail.com> wrote:
> 
> Hi,
> 
> 
> we have a freeradius server collecting accounting events from a few Nokia GGSN’s and are storing them into the MySQL DB.
> 
> Now that we have activated all messages we are receiving around 20K messages a minute, and have started seeing these events in the radius.log
> 
> Tue Jun 14 22:53:33 2016 : Info: WARNING: Please check the configuration file. 	The value for 'max_requests' is probably set too low.
> 
> it was originally set to 1024, when we increased it and set it to 4096 the amount of such events was reduced but still didn’t disappear.
> If we set it higher (6100 for  example) we start getting these errors
> 
> Tue Jun 14 21:30:02 2016 : Error: Received conflicting packet from client localhost port 41935 - ID: 200 due to unfinished request 192178.  Giving up on old request.
> 
> why does this event appear? what would be the best way to manage this situation?
> 
> The server has 8 Cores and 4GB of RAM.
> It seems that the CPU isn’t overly loaded, but our RAM is almost completely used by the Radius and Mysql processes.

Use version 4.0 (in about three months time), or get a faster database.

-Arran

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