10 Jul
2018
10 Jul
'18
2:11 a.m.
Figured it out eventually, thanks for the tip Alex.
Cheers
--Sergiu
On Mon, Jul 9, 2018 at 4:14 PM Sergiu Pojoga <pojogas(a)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(a)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
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--
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/
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