[RADIATOR] Issue with authentication and farmsize option

[Stefan Paetow (OpenSource)]

Hi Dubravko,

We don't quite do real-time monitoring, but we use Munin with a custom
plugin that pulls timings in every 5 minutes or so. I've inherited this
setup from someone who inherited it from the previous admins, but it does a
decent job giving me decent resolution on loads and response times.

Hope that helps.

Stefan


On Fri, 15 Apr 2022 at 10:43, Dubravko Penezic <dpenezic at srce.hr> wrote:

> Hi Stefan,
>
> thanks a lot for info and help , I will continue with test next week
> when my large number of user comeback from holidays :)
>
> Radar hardly support monitoring FarmSize all instance in real time, do
> you use that type of monitoring ?
>
> Regards,
> Dubravko
>
> On 4/14/22 02:16, Stefan Paetow (OpenSource) wrote:
> > Hi Dubravko,
> >
> > In the UK service, because we only have a limited number of processors
> > (with lscpu) on our new platform, we set our FarmSize to 3 times the
> > lscpu number, and it's certainly helped with throughput. So, I'd suggest
> > setting yours to 16, just to see how that improves the throughput?
> >
> > Our old hardware actually had 12 and 16 processors (with 24 and 32 cores
> > respectively) and in those instances we literally got away with just
> > running the number of lscpu instances in the FarmSize.
> >
> > Hope that helps.
> >
> > Stefan
> >
> >
> > On Tue, 12 Apr 2022 at 07:59, Dubravko Penezic <dpenezic at srce.hr
> > <mailto:dpenezic at srce.hr>> wrote:
> >
> >     Hi ,
> >
> >     we run latest RADIATOR on VM with 4 processor and 4G RAM, and have
> set
> >     FarmSize to 4 (actually that mean 4 spare RADIATOR instance),
> >     usually we
> >     have about 80 request on all 4 instance per second, how ever in some
> >     pick time we reach 150+ authentication per second. In that period we
> >     have issue.
> >
> >     In RADIATOR log we see no authentication request for second or two,
> >     then
> >     process continue normaly, and that may repeat few times in period of
> >     5-10 minutes ... then everything continue to work normally.
> >
> >     Any idea, suggestion ?
> >
> >     Regards,
> >     Dubravko Penezic
> >     SRCE
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