udp sockets and proxy servers

[Sergey Komarov]

Hello Arran, Alan and colleagues!


> Hmmm, well that's problematic.  Could you open a GitHub issue.
> > -Arran
>

Ok, done. I opened issue at Github: "FreeRadius 3.0.9 tries to open more
and more sockets for proxy server until crash" #1155

I understand thats FR is free software but I hope may be someone helps we
with a patch or advise should I try to build 3.1.x or other versions to get
CoA proxy stable with lots of home servers. Thank you in advance for your
help!


Best Regards, Serge Komaroff


> > > I'm tring to run 3.0.9 configuration with about ~1500 clients and home
> > > servers (as I have about 1500 WLCs in the network and I try to proxy
> CoA
> > > packet to WLCs via radius).
> > >
> > > Radius server tries to open as many sockets as possible doing like
> that:
> > >
> > > Info:  ... adding new socket proxy address * port 46527
> > > Info:  ... adding new socket proxy address * port 38003
> > >
> > > It happens slowly or fast and it depends of load as I see it... And
> then
> > > after about 256 sockets server quits from running with error:
> >
> >   Is that with TLS?  Or TCP?  We didn't predict that people would use 256
> > or more clients with CoA and TCP.
> >
> >   But it *should* work for UDP.  There's no reason for it to open many
> > proxy sockets.  It just needs one or two.
> >
> >   Alan DeKok.
> >
>
> Hello Alan! The case is that I'm using UDP only, no any TLS now, just
> common pap/sql and Acc Req/Accept/CoA Proxy... SQL sockets is ok and no
> overflow there (it even close some connections to DB when don't need it).
>


> But it looks like FR tries to create as many sockets as home servers and it
> happen slowly - depends on load. When I limit to 200 home servers - it
> stopped to create sockets at number about 153... In case it overcome 256 it
> drops soon with that error...
>
>
> Best Regards, Serge Komaroff
>