[SR-Users] CPS

[Sergiu Pojoga]

I have not until now that you recommended it, looks much simpler indeed,
thanks.

Although, so far I can't seem to hit a pipe limit. If I watch pl.stats, no
matter what *timer_interval* I set, the counter increases to 1 upon a call
then back to 0 the next second.

root at proxy:/# watch -n 1 -d kamcmd pl.stats
PIPE: id=65.39.XX.XX load=0 counter=0

Say I wanted 1 call per minute pipe, what would be the 'timer_interval' and
pl_check limit?

On Mon, Jul 9, 2018 at 2:47 PM Alex Balashov <abalashov at evaristesys.com>
wrote:

> Have you considered using pipelimit for this? It's as simple as:
>
>    if(!pl_check("$avp(customer_id)", "TAILDROP", "$avp(cps_limit)")) {
>        pl_drop();
>        exit;
>    }
>
> There was a time when that wasn't possible because pipes couldn't easily
> be created dynamically for a given customer ID or whatever, and htable
> was the preferred vehicle for that. That has changed, and nowadays it's
> a lot simpler. :-)
>
> -- Alex
>
> On Mon, Jul 09, 2018 at 02:41:44PM -0400, Sergiu Pojoga wrote:
>
> > Hi folks,
> >
> > Trying to implement CPS throttling based on this
> > <
> https://lists.kamailio.org/pipermail/sr-users/2013-September/079713.html
> >article,
> > having some trouble.
> >
> > modparam("htable", "htable", "rhs=>size=32;initval=0;autoexpire=300;"
> > modparam("htable", "htable", "rhm=>size=32;initval=0;autoexpire=1800;")
> >
> > route[CPS] {
> > $var(rateHashSec) = $si+":sec:"+$timef(%Y/%m/%d_%H_%M_%S);
> > $var(rateHashMin) = $si+":min:"+$timef(%Y/%m/%d_%H_%M_00);
> > xlog("L_INFO", "var(rateHashSec)=$var(rateHashSec);
> > var(rateHashMin)=$var(rateHashMin)\n");
> > $var(ratePerSec) = $shtinc(rhs=>$var(rateHashSec));
> > $var(ratePerMin) = $shtinc(rhm=>$var(rateHashMin));
> > xlog("L_INFO", "var(ratePerSec)=$var(ratePerSec);
> > var(ratePerMin)=$var(ratePerMin)\n");
> > $var(limitPerSec) = 1;
> > $var(limitPerMin) = 1;
> >
> > if ($var(ratePerSec) > $var(limitPerSec) || $var(ratePerMin) >
> > $var(limitPerMin)) {
> >                         xlog("L_INFO", "CPS Limit on IP $si\n");
> >                         send_reply("503", "CPS Limit on IP $si");
> >                         exit;
> > }
> >
> > }
> >
> > Logs show hashes are created but *$var(ratePerSec/Min)* won't increment
> no
> > matter how many calls I place per second or minute:
> >
> > Jul  9 14:35:52 proxy /usr/local/sbin/kamailio[1484]: INFO: <script>:
> > var(rateHashSec)=65.39.XX.XX:sec:2018/07/09_14_35_52;
> > var(rateHashMin)=65.39.XX.XX:min:2018/07/09_14_35_00
> > Jul  9 14:35:52 proxy /usr/local/sbin/kamailio[1484]: INFO: <script>:
> > var(ratePerSec)=0; var(ratePerMin)=0
> >
> > Much obliged.
> > --Sergiu
>
> > _______________________________________________
> > Kamailio (SER) - Users Mailing List
> > sr-users at lists.kamailio.org
> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
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>
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