[SR-Users] Re: Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls

On 15 Jan 2025, at 09:50, Igor Potjevlesch &lt;igor.potjevlesch(a)gmail.com&gt; wrote: Hello Olle, Do you mean there is a scale limit? Maybe because the counter is 32bits counter? Regards, Igor. De : Olle E. Johansson &lt;oej(a)edvina.net <mailto:oej@edvina.net>> Envoyé : mardi 14 janvier 2025 12:47 À : Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> Cc : Olle E Johansson &lt;oej(a)edvina.net <mailto:oej@edvina.net>>; Henning Westerholt &lt;hw(a)gilawa.com <mailto:hw@gilawa.com>>; Igor Potjevlesch &lt;igor.potjevlesch(a)gmail.com <mailto:igor.potjevlesch@gmail.com>> Objet : Re: [SR-Users] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls Note that SNMP counters wrap, so it may be expected behaviour. /O > On 14 Jan 2025, at 11:51, Igor Potjevlesch via sr-users &lt;sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> wrote: > > Hello Henning, > > Undertstood! Thank you. If there is nothing to do, we will move on the upgrade. > > Regards, > > Igor. > > De : Henning Westerholt &lt;hw(a)gilawa.com <mailto:hw@gilawa.com>> > Envoyé : lundi 13 janvier 2025 17:20 > À : 'Kamailio (SER) - Users Mailing List' &lt;sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> > Cc : Igor Potjevlesch &lt;igor.potjevlesch(a)gmail.com <mailto:igor.potjevlesch@gmail.com>> > Objet : RE: [SR-Users] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls > > Hello Igor, > > hard to say 100%, because it could be also caused from another module (the snmp modules also takes data from other sources I think). > > Generally, I would always of course recommended to use a maintained version in production. > > Cheers, > > Henning > > From: Igor Potjevlesch &lt;igor.potjevlesch(a)gmail.com <mailto:igor.potjevlesch@gmail.com>> > Sent: Montag, 13. Januar 2025 15:12 > To: Henning Westerholt &lt;hw(a)gilawa.com <mailto:hw@gilawa.com>>; 'Kamailio (SER) - Users Mailing List' &lt;sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> > Subject: RE: [SR-Users] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls > > Hello Henning, > > Thank you for your check. > Do you mean that even if we upgrade to the latest branch, we will probably face the same issue? > > Regards, > > Igor. > > De : Henning Westerholt &lt;hw(a)gilawa.com <mailto:hw@gilawa.com>> > Envoyé : lundi 13 janvier 2025 14:36 > À : Kamailio (SER) - Users Mailing List &lt;sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> > Cc : Igor Potjevlesch &lt;igor.potjevlesch(a)gmail.com <mailto:igor.potjevlesch@gmail.com>> > Objet : RE: [SR-Users] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls > > Hello Igor, > > this sounds like a bug to me. The 5.6.x branch is not supported anymore, but after I a quick look I did not spotted any recent bugfixes in the modules that could match. > > Cheers, > > Henning > > -- > Henning Westerholt – https://skalatan.de/blog/ > Kamailio services – https://gilawa.com <https://gilawa.com/> > > > From: Igor Potjevlesch via sr-users &lt;sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> > Sent: Montag, 13. Januar 2025 13:40 > To: sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> > Cc: Igor Potjevlesch &lt;igor.potjevlesch(a)gmail.com <mailto:igor.potjevlesch@gmail.com>> > Subject: [SR-Users] Module snmpstats reporting inconsistent call success metrics on intense peaks of failed calls > > Hello! > > We are plotting the call success rate on each of our proxies. > Using the Kamailio snmpstats module, we try to obtain three counters to plot them on a graph: > > Total Calls > Active Calls > Error Calls > > Most of the time, everything works well, and we obtain sensible values: > snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n > > .1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 309 -> Total Calls > .1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 95 -> Active Calls > .1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 214 -> Error calls > > However, when our proxies are facing intense peaks of failed calls in a short time span, sometimes, the "Error Calls" counter returns a value higher than "Total Calls". As a result, "Active Calls" suddenly reaches a value close to the maximum of a Gauge32 (because T o t a l C a l l s − E r r o r C a l l s < 0 ). > > snmpwalk -c mycommunity -v 2c W.X.Y.Z 1.3.6.1.4.1.34352.3.1.3.1.3.2 -O n > > .1.3.6.1.4.1.34352.3.1.3.1.3.2.1.0 = Gauge32: 153 -> Total Calls > .1.3.6.1.4.1.34352.3.1.3.1.3.2.2.0 = Gauge32: 4294967226 -> Active Calls > .1.3.6.1.4.1.34352.3.1.3.1.3.2.3.0 = Gauge32: 223 -> Error calls > > As a result, our graphs make no more sense. > > We are currently running kamailio 5.6.4. > > Any idea if it's a bug or a configuration issue? > > Regards, > > Igor. > > <image001.jpg> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > Sans virus.www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> > To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org <mailto:sr-users-leave@lists.kamailio.org> > Important: keep the mailing list in the recipients, do not reply only to the sender!