[SR-Users] CPS

[Sergiu Pojoga]

Figured it out eventually, thanks for the tip Alex.

Cheers
--Sergiu

On Mon, Jul 9, 2018 at 4:14 PM Sergiu Pojoga <pojogas at 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 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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>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>
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