[SR-Users] Intermittent error seen when using a python script in kamailio

Fri Apr 1 15:40:13 CEST 2022

Any thoughts on this?

Pozdrawiam / Best regards,
Wojtek

On Fri, Feb 25, 2022 at 9:30 AM Wojciech Kopciewicz <
wojciech.kopciewicz at motorolasolutions.com> wrote:

> Hi Daniel,
>
> This is still a development setup so the traffic is very small - a few
> calls a day.
> It seems that the issue can be seen during first calls after some
> inactivity.
>
> Pozdrawiam / Best regards,
> Wojtek
>
>
> On Wed, Feb 23, 2022 at 2:11 PM Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>> Hello,
>>
>> how often they show up and is there high volume of traffic at that moment?
>>
>> Cheers,
>> Daniel
>> On 23.02.22 11:44, Wojciech Kopciewicz wrote:
>>
>> Hi,
>>
>> Yes, those values are hard-coded strings.
>>
>> Pozdrawiam / Best regards,
>> Wojtek
>>
>>
>> On Wed, Feb 23, 2022 at 8:25 AM Daniel-Constantin Mierla <
>> miconda at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> do you check that header_name parameter set for KSR.hdr.is_present() is
>>> a string value?
>>>
>>> Cheers,
>>> Daniel
>>> On 22.02.22 15:36, Wojciech Kopciewicz wrote:
>>>
>>> Hi,
>>>
>>> Intermittently we are observing the following error when checking if
>>> given header is present in SIP INVITE:
>>>
>>> SystemError: returned a result with an error set
>>>
>>> The complete stack trace is (some names redacted):
>>> 11(28) ERROR: {1 195 INVITE nMHZDN.10nOIDt4ldOwz5cqz0XnMepA9}
>>> app_python3 [python_support.c:156]: python_handle_exception(): apy_exec:
>>> modify_headers((null)): Unhandled exception in the Python code:
>>> TypeError: an integer is required (got type NoneType)
>>>
>>> The above exception was the direct cause of the following exception:
>>>
>>> Traceback (most recent call last):
>>> File "/etc/kamailio/kamailio.py", line 25, in modify_headers
>>> self.modify_header("SomeHeader")
>>> File "/etc/kamailio/kamailio.py", line 29, in modify_header
>>> present = KSR.hdr.is_present(header_name)
>>> SystemError: returned a result with an error set
>>>
>>> Kamailio version (kamailio -v output):
>>>
>>> version: kamailio 5.4.6 (x86_64/linux)
>>>
>>> flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS,
>>> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC,
>>> F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT,
>>> USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST,
>>> HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
>>> ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE
>>> 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
>>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
>>> id: unknown
>>> compiled with gcc 8.3.0
>>>
>>> Operation system: Linux kamailio-5c7484c74d-vhhr8 5.4.0-1056-azure
>>> #58~18.04.1-Ubuntu SMP Wed Jul 28 23:14:18 UTC 2021 x86_64 GNU/Linux
>>>
>>> Are you able to help me find the root cause of this issue?
>>> Pozdrawiam / Best regards,
>>> Wojtek
>>>
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>> --
>> Daniel-Constantin Mierla -- www.asipto.com <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.asipto.com&d=DwMDaQ&c=q3cDpHe1hF8lXU5EFjNM_C93KOmcBXCBnhee2v6PYlc&r=RsXkMe6sb2-9yHQUV8KP4MrUtS9gOAiWNJa5xB5cLRjcZVaHW3sjBwy6Fjb928KS&m=ciUm5591lbERv9MC6e_pLveQYX7zQZLMLzi4r2na0WG0tvcJeJNOtw77DQ7-OgGU&s=zJFtVCAWufSwSehp6pvpr04uyL6lD3FGqDeaFPv944I&e=>www.twitter.com/miconda <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.twitter.com_miconda&d=DwMDaQ&c=q3cDpHe1hF8lXU5EFjNM_C93KOmcBXCBnhee2v6PYlc&r=RsXkMe6sb2-9yHQUV8KP4MrUtS9gOAiWNJa5xB5cLRjcZVaHW3sjBwy6Fjb928KS&m=ciUm5591lbERv9MC6e_pLveQYX7zQZLMLzi4r2na0WG0tvcJeJNOtw77DQ7-OgGU&s=qUYXpFu_MBwO--p70pHIPCfpxAjJtZr3uBK5K-mGvFA&e=> -- www.linkedin.com/in/miconda <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.linkedin.com_in_miconda&d=DwMDaQ&c=q3cDpHe1hF8lXU5EFjNM_C93KOmcBXCBnhee2v6PYlc&r=RsXkMe6sb2-9yHQUV8KP4MrUtS9gOAiWNJa5xB5cLRjcZVaHW3sjBwy6Fjb928KS&m=ciUm5591lbERv9MC6e_pLveQYX7zQZLMLzi4r2na0WG0tvcJeJNOtw77DQ7-OgGU&s=9swPTb_vUy_tOOdA5cLpzqwo46lZcq49D8HfUU5nukk&e=>
>> Kamailio Advanced Training - Online
>>   Mar 28-31, 2022 (Europe Timezone)
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