Figured it out eventually, thanks for the tip Alex.

Cheers --Sergiu

On Mon, Jul 9, 2018 at 4:14 PM Sergiu Pojoga pojogas@gmail.com wrote:

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@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@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@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 sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users