[Spce-user] Suddenly many SIP-Accounts are "busy" (Concurrent max calls exceeded)
Alex Lutay
alutay at sipwise.com
Mon Apr 26 06:53:57 EDT 2021
Hi all,
What is the NGCP version here?
The Redis counters issues used to be fixed ~2 years ago.
I do not recall any such issues with commercial customers for years.
Tnx!
On 4/22/21 4:11 PM, Walter Klomp via Spce-user wrote:
> Hi Thomas. Indeed this is a redis issue which you have to flush. But
> check if proxy is crashing because that will also wreak havoc with the
> counters. If for instance I make a change in the config which results in
> restarting of kamailio proxy I have to reset the redis database as well,
> or all counters are off. This may need to be fixed by the Sipwise
> developers.
>
> On Thu, 22 Apr 2021 at 21:16, Matthias Hohl <matthias.hohl at telematica.at
> <mailto:matthias.hohl at telematica.at>> wrote:
>
> __ __
>
> Hallo Thomas,____
>
> __ __
>
> I just know this problem in correlation to redis counter.____
>
> After flush the redisdb counter, it was fine.____
>
> I am not sure if a system reboot also clear the redis counter too,
> but maybe this helps you a bit:____
>
> __ __
>
> Searching for the problem:____
>
> |# cat /var/log/ngcp/kamailio-proxy.log | grep -i 'concurrent'||____|
>
> |__ __|
>
> Solution:____
>
> |# redis-cli -n 3 FLUSHDB____|
>
> __ __
>
> __ __
>
> Or try this:____
>
> # ngcp-dlgcnt-check____
>
> you will see the list of hanging calls that should be clean____
>
> ____
>
> # ngcp-dlgcnt-check -r____
>
> You will remove those calls from dialog list and decrease the
> counters properly.____
>
> __ __
>
> Lg____
>
> __ __
>
> __ __
>
> *Von:*Thomas Georg via Spce-user <spce-user at lists.sipwise.com
> <mailto:spce-user at lists.sipwise.com>>
> *Gesendet:* Donnerstag, 22. April 2021 13:18
> *An:* spce-user at lists.sipwise.com <mailto:spce-user at lists.sipwise.com>
> *Betreff:* [Spce-user] Suddenly many SIP-Accounts are "busy"
> (Concurrent max calls exceeded)____
>
> __ __
>
> Hi,____
>
> __ __
>
> since 3 hours our customers complain about busy lines (in and
> outgoing).____
>
> This happens to customers who have „max concurrent calls“ set.____
>
> I tried with one customer which definitively did no call during this
> test and I always got the message „Concurrent max calls[2]
> exceeded[10]“ until i raised the limit to 10 or above then a call
> was possible.____
>
> We recognized that at exactly at 11:00 the answer seizure rate felt
> from 62% to 55%. Since then we also get complaints.____
>
> I restarted the system but the problem is still there.____
>
> __ __
>
> We currently set all complaining customers to more concurrent calls,
> but this should be only a workaround.____
>
> __ __
>
> What can I do to debug this? Is there a possibility to show the
> „real“ current calls per user/total?____
>
> __ __
>
> Regards____
>
> Thomas
>
> ____
>
> __ __
>
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>
> Warmest Regards,
>
> <https://myrepublic.com.sg/>
>
> *Walter Klomp*
> Head of Voice & Systems
> MyRepublic Limited
> T: +65 6816 1120
> F: +65 6717 2031
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--
Alex Lutay
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