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

Fri Feb 25 09:30:27 CET 2022

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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