Hello Russell -
The first thing to do is look at a trace 4 debug in Radiator with
LogMicroseconds enabled (requires Time-Hires from CPAN).
This will show you immediately how long each processing step is taking.
The usual cause of this sort of problem is a slow database, probably due to a
very large number of records in the accounting table resulting in very long
insert times.
See section 5.6.38 in the Radiator 4.11 reference manual ("doc/ref.pdf").
regards
Hugh
On 11 Jun 2013, at 09:12, Russell Fulton wrote:
> Hi
>
> We are using radiator (on linux) to collect accounting data from Cisco WISMs
> (wireless infrastructure). I have verified that the accounting data is being
> received by the radiator machines but a fair portion never makes it to the
> database. Looking at the stats I see that there are a large number of drops
> during peak times.
>
> I am trying to work out what is causing the drops. CPU is sitting at well
> under 5% (mostly %1) the back end database is hosting many other databases
> that are not experiencing problems.
>
> I would really like some hints as to where to start diagnosing this issue. I
> suspect that the issue has been there since the system was installed. These
> machines were originally meant to do the authentication as well as the
> accounting but at go live got these same problems under load and it was
> decided to switch authentication to MS radius.
>
> I am a security analysis with a lot of UNIX/Linux experience and I have root
> access to the radiator boxes (4 of them).
>
> Russell
>
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--
Hugh Irvine
h...@open.com.au
Radiator: the most portable, flexible and configurable RADIUS server
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TTLS, PEAP, TNC, WiMAX, RSA, Vasco, Yubikey, MOTP, HOTP, TOTP,
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Full source on Unix, Windows, MacOSX, Solaris, VMS, NetWare etc.
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