Hello Andy -
There has been some work done on the session database recently and Mike has
added some indexing and a modified query for MySQL that includes a "limit 1"
when searching for an address.
You should upgrade to Radiator 2.18 (plus patches).
I have also copied Mike on this mail so he can give you the details.
cheers
Hugh
On Tuesday 17 April 2001 20:33, Andy De Petter wrote:
> Hello,
>
> I'm having a bit of a problem with the session database, on Radiator
> 2.17.1. I have 2 radius servers running, sharing a remote SQL database for
> all active sessions. The authentication of clients, also happens through
> remote SQL databases, on different machines than the session db.
>
> Now, when the session database is enabled, I have a very high amount of UDP
> packets (mostly accounting) dropped, between the access servers, and the
> radius servers. When disabling it, nearly no packets are dropped. The
> session database, runs on a high-end Sun Enterprise server, with plenty of
> CPU and memory, and is dedicated to the session db (MySQL). The load on
> the session db server, is nearly nothing, and the SQL server isn't showing
> any performance problems. Also the load on the radius servers, isn't
> rising, after enabling the session db.
>
> At first sight, this doesn't really seem to be a network problem, as there
> is a direct dedicated line, between access servers, and radius servers.
>
> Something, that might be interesting aswell, is that the incoming/outgoing
> traffic multiplies by 5, when enabling the session database, and outgoing
> traffic is nearly half of incoming traffic.... while without the session
> database, in/outgoing traffic is approx. equal to eachother.
>
> I know this might sound a bit confusing, and might require you to read the
> problem a few times, before understanding it .. but it's really odd, and at
> the moment, I can't afford to enable the session db, due to the packetloss
> between access servers and radius servers in that case :-/
>
> -Andy
>
> --
> "For nothing can seem foul to those that win."
> - Henry IV, Pt1, Act 5, Sc 1
>
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