[Freeswitch-users] too many stacked extensions

sagar malam sagarmalam at gmail.com
Thu Mar 14 16:46:31 UTC 2019 

Any update on this?
I am also facing same issue using XML dialplan when CPS is above 50.

On Tue, Mar 12, 2019 at 3:27 AM Brian West <brian at freeswitch.com> wrote:

> Can you email me a full working sample that can trigger this scenario?
>
> /b
>
>
> On Mon, Mar 11, 2019 at 3:32 PM Grant Bagdasarian <gb at cm.nl> wrote:
>
>> Hi Brian,
>>
>>
>>
>> The following string (some fields changed for security reasons) is passed
>> to the freeswitch.Session function for originating the call.
>>
>> {originate_timeout='60',ignore_early_media='false',origination_uuid='b4cd3cec-ba43-4e52-82eb-6f8ac11f6850',origination_caller_id_name='XXXXXXXXXXXXX',origination_caller_id_number='XXXXXXXXXXXXX',return_ring_ready='true',sip_cid_type='pid',origination_privacy='hide_name:screen',sip_h_X-Custom-Header1
>> ='1111',sip_h_X-Custom-Header2='222',sip_h_X-Custom-Header3
>> ='abcde',sip_h_X-Custom-Header4='1'}sofia/local_eth0/XXXXXXXXX at X.X.X.X
>> :5060"
>>
>>
>>
>> We actually pass a JSON object to the pyrun application as arguments
>> which contains more data we need during the call, like which files to play,
>> etc.
>>
>> The Originate String above is contained inside this JSON. Please let me
>> know to which originateCommand you were referring.
>>
>>
>>
>> Are the origination variables treated as extensions? The
>> X-Customer-Headers may vary in amount passed (Usually 4 or 5), the rest of
>> the variables are always there, sometimes with different values.
>>
>>
>>
>> Thanks and regards,
>>
>>
>>
>> Grant
>>
>>
>>
>> *From:* FreeSWITCH-users <freeswitch-users-bounces at lists.freeswitch.org> *On
>> Behalf Of *Brian West
>> *Sent:* maandag 11 maart 2019 18:27
>> *To:* FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
>> *Subject:* Re: [Freeswitch-users] too many stacked extensions
>>
>>
>>
>> What are you passing in originateCommand?
>>
>>
>>
>> /b
>>
>>
>>
>>
>>
>> On Mon, Mar 11, 2019 at 8:00 AM Grant Bagdasarian <gb at cm.nl> wrote:
>>
>> Hello,
>>
>>
>>
>> We’ve recently upgraded some of our servers to 1.8.5 and are now
>> occasionally experiencing the error “too many stacked extensions” for some
>> calls.
>>
>> According to Jira this has been patched since 1.8.1, but perhaps this is
>> due to some other scenario being triggered.
>>
>>
>>
>> We’re using ESL (bgapi command) to spawn a python script which in turn
>> does an originate.
>>
>>
>>
>> See below a snippet of the cli output.
>>
>> As far as I can tell, this doesn’t have any real consequences resource
>> consumption wise (CPU and memory), only the disk will get hammered in the
>> case when logging to syslog.
>>
>> Also, I haven’t been able to reproduce this myself, but I’m still in the
>> process of doing more testing.
>>
>> It seems to be happening before the call is connected to the destination.
>>
>>
>>
>> Any ideas how to properly debug this and find out what’s triggering this?
>>
>> I’ve tried the following:
>>
>>    - Monitoring all ESL events
>>    - fsctl debug_level 10
>>    - sofia loglevel all 9
>>
>>
>>
>> They all output a lot of debugging information, which does get
>> overwhelming.
>>
>>
>>
>> In a nutshell, this is the flow:
>>
>> ESL:
>>
>> bgapi pyrun app originateCommand
>>
>>
>>
>> Python:
>>
>> session = freeswitch.Session(originateCommand)
>>
>> session.execute("wait_for_answer")
>>
>> session.streamFile(file)
>>
>>
>>
>> 2019-03-11 12:58:08.133457 [ALERT] switch_core_session.c:1047 Send signal
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 [BREAK]
>>
>> 2019-03-11 12:58:08.133457 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.133457 [ALERT] switch_core_state_machine.c:705
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread wake state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.133457 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.133457 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.133457 [ALERT] switch_core_state_machine.c:701
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread sleep state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.153454 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.173495 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.193453 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.213458 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.233455 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.253489 [ALERT] switch_core_session.c:1047 Send signal
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 [BREAK]
>>
>> 2019-03-11 12:58:08.253489 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.253489 [ALERT] switch_core_state_machine.c:705
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread wake state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.253489 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.253489 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.253489 [ALERT] switch_core_state_machine.c:701
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread sleep state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.273448 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.293454 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.313459 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.333443 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.353456 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.373450 [ALERT] switch_core_session.c:1047 Send signal
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 [BREAK]
>>
>> 2019-03-11 12:58:08.373450 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.373450 [ALERT] switch_core_state_machine.c:705
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread wake state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.373450 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.373450 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.373450 [ALERT] switch_core_state_machine.c:701
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread sleep state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.393440 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.413450 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.433452 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.453461 [ERR] switch_ivr.c:904 Error sofia/local_eth0/
>> 00393421615027 at 10.14.26.10:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.473474 [ALERT] switch_core_session.c:1047 Send signal
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 [BREAK]
>>
>> 2019-03-11 12:58:08.473474 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.473474 [ALERT] switch_core_state_machine.c:705
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread wake state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.473474 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.473474 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.473474 [ALERT] switch_core_state_machine.c:701
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 session thread sleep state:
>> CS_SOFT_EXECUTE!
>>
>> 2019-03-11 12:58:08.493452 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.513447 [ALERT] switch_rtp.c:7695
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio timeout
>>
>> 2019-03-11 12:58:08.513447 [ALERT] switch_rtp.c:1584
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio stat 99.00 301/302 flaws:
>> 1 mos: 4.49 v: 0.11 0.11/1.78
>>
>> 2019-03-11 12:58:08.513447 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.533439 [ALERT] switch_rtp.c:7695
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio timeout
>>
>> 2019-03-11 12:58:08.533439 [ALERT] switch_rtp.c:1565
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio 2 consecutive flaws,
>> adding 2 flaw penalty
>>
>> 2019-03-11 12:58:08.533439 [ALERT] switch_rtp.c:1584
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio stat 98.00 298/302 flaws:
>> 4 mos: 4.48 v: 0.11 0.11/1.78
>>
>> 2019-03-11 12:58:08.533439 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.553450 [ALERT] switch_rtp.c:7695
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio timeout
>>
>> 2019-03-11 12:58:08.553450 [ALERT] switch_rtp.c:1565
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio 3 consecutive flaws,
>> adding 2 flaw penalty
>>
>> 2019-03-11 12:58:08.553450 [ALERT] switch_rtp.c:1584
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio stat 97.00 295/302 flaws:
>> 7 mos: 4.47 v: 0.11 0.11/1.78
>>
>> 2019-03-11 12:58:08.553450 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.573441 [ALERT] switch_rtp.c:7695
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio timeout
>>
>> 2019-03-11 12:58:08.573441 [ALERT] switch_rtp.c:1565
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio 4 consecutive flaws,
>> adding 2 flaw penalty
>>
>> 2019-03-11 12:58:08.573441 [ALERT] switch_rtp.c:1584
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio stat 96.00 292/302 flaws:
>> 10 mos: 4.46 v: 0.11 0.11/1.78
>>
>> 2019-03-11 12:58:08.573441 [ERR] switch_ivr.c:904 Error
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 too many stacked extensions
>>
>> 2019-03-11 12:58:08.593450 [ALERT] switch_rtp.c:7695
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio timeout
>>
>> 2019-03-11 12:58:08.593450 [ALERT] switch_rtp.c:1565
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio 5 consecutive flaws,
>> adding 2 flaw penalty
>>
>> 2019-03-11 12:58:08.593450 [ALERT] switch_rtp.c:1584
>> sofia/local_eth0/XXXXXXXXXX at X.X.X.X:5060 audio stat 95.00 289/302 flaws:
>> 13 mos: 4.44 v: 0.11 0.11/1.78
>>
>>
>>
>> Regards,
>>
>>
>>
>> Grant
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Services
>> sales at freeswitch.com
>> https://freeswitch.com
>>
>> Official FreeSWITCH Sites
>> https://freeswitch.com/oss
>> https://freeswitch.org/confluence
>> https://cluecon.com
>>
>> FreeSWITCH-users mailing list
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>>
>>
>>
>>
>> --
>>
>>
>>
>> Brian West | Co-founder and Developer
>>
>> Need Commercial support? email sales at freeswitch.com
>>
>> FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
>> <https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>
>>
>> Email: brian at freeswitch.com
>>
>> Mobile: 918-424-9378
>>
>> Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>
>>
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>> ------------------------------
>>
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>>
>> This email was sent outside of your organisation
>> ------------------------------
>> _________________________________________________________________________
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>> https://freeswitch.com
>>
>> Official FreeSWITCH Sites
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>>
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>> https://freeswitch.com
>
>
>
> --
>
> Brian West | Co-founder and Developer
>
> Need Commercial support? email sales at freeswitch.com
>
> FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
> <https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>
>
> Email: brian at freeswitch.com
>
> Mobile: 918-424-9378
>
> Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>
>
> [image: https://www.facebook.com/signalwireinc?src=email]
> <https://www.facebook.com/freeswitch> [image:
> https://twitter.com/freeswitch] <https://twitter.com/freeswitch>
> _________________________________________________________________________
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
>
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-- 
Thanks,

Sagar
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