[SR-Users] Fwd: pv_buffer_size config value actually ignored?

Enrico Bandiera enrico.bandiera at cloud.timenet.it
Thu Feb 14 09:00:51 CET 2019


Thank you Daniel, setting it to 8192 solved the issue.

Cheers,
Enrico.

Il giorno mer 13 feb 2019 alle ore 22:18 Daniel-Constantin Mierla <
miconda at gmail.com> ha scritto:

> Hello,
>
> you actually need to set the modparam for it:
>
>   -
> https://www.kamailio.org/docs/modules/stable/modules/xlog.html#xlog.p.buf_size
>
> xlog module is using its own buffer, not the one from pv core file.
>
> Cheers,
> Daniel
> On 13.02.19 21:36, Enrico Bandiera wrote:
>
> Hi, could it be caused by this?
>
>
> https://github.com/kamailio/kamailio/blob/master/src/modules/xlog/xlog.c#L65
>
> I tried to increment it, recompiled kamailio and the error doesn't show up
> anymore
>
> Thanks,
> Enrico
>
>
>
> Il giorno mer 13 feb 2019 alle ore 17:29 Enrico Bandiera <
> enrico.bandiera at cloud.timenet.it> ha scritto:
>
>> Hello Daniel, here are the logs:
>>
>> 29(46) ERROR: <core> [core/pvapi.c:1457]: pv_printf(): no more space for
>> spec value - printed:7 token:5131 buffer:4096
>> 29(46) ERROR: <core> [core/pvapi.c:1467]: pv_printf(): buffer overflow --
>> increase the buffer size...
>> 29(46) ERROR: <core> [core/pvapi.c:1457]: pv_printf(): no more space for
>> spec value - printed:7 token:5129 buffer:4096
>> 29(46) ERROR: <core> [core/pvapi.c:1467]: pv_printf(): buffer overflow --
>> increase the buffer size...
>>
>> Thanks,
>> Enrico
>>
>>
>> Il giorno mer 13 feb 2019 alle ore 09:45 Daniel-Constantin Mierla <
>> miconda at gmail.com> ha scritto:
>>
>>> Hello,
>>>
>>> I pushed a patch to print more details about printed size, current token
>>> size and overall output buffer size in those error log messages -- the
>>> commit:
>>>
>>>   *
>>> https://github.com/kamailio/kamailio/commit/44e48809a608d4de46d61198137cd669c6a4763f
>>>
>>> Can you try with this patch and send again here on mailing list the
>>> error log messages?
>>>
>>> Cheers,
>>> Daniel
>>> On 13.02.19 09:20, Enrico Bandiera wrote:
>>>
>>>
>>>
>>> ---------- Forwarded message ---------
>>> From: Enrico Bandiera <enrico.bandiera at cloud.timenet.it>
>>> Date: mer 13 feb 2019 alle ore 09:18
>>> Subject: Re: [SR-Users] pv_buffer_size config value actually ignored?
>>> To: Daniel-Constantin Mierla <miconda at gmail.com>
>>>
>>>
>>> Hello Daniel, yes we do use that $avp for a log line which is actually a
>>> big json, the $avp is composed by multiple jansson_append calls and at the
>>> end an xlog() calls prints it
>>> Could it also be that I'm miscalculating because of the encoding? 4K
>>> utf8 characters could be more than 4K (but I don't think there are so many
>>> multibytes characters to let it reach the 8K limit)
>>>
>>> Il giorno mer 13 feb 2019 alle ore 09:15 Daniel-Constantin Mierla <
>>> miconda at gmail.com> ha scritto:
>>>
>>>> Hello,
>>>>
>>>> where do you use that avp, because for the avp value itself, that
>>>> buffer is not used -- avp values are stored in shared memory.
>>>>
>>>> Do you use that avp in xlog() or other functions parameters?
>>>>
>>>> Cheers,
>>>> Daniel
>>>> On 13.02.19 09:10, Enrico Bandiera wrote:
>>>>
>>>> Hi, I'm having some strange issues with a somewhat big $avp value, when
>>>> it reaches a size of about 4K I get this error:
>>>>
>>>> 29(47) ERROR: <core> [core/pvapi.c:1452]: pv_printf(): no more space
>>>> for spec value
>>>> 29(47) ERROR: <core> [core/pvapi.c:1461]: pv_printf(): buffer overflow
>>>> – increase the buffer size...
>>>>
>>>> In the docs I read that the default pv_buffer_size is 8K, I still tried
>>>> to enforce it to something bigger and checked the logs to be sure it was
>>>> set:
>>>>
>>>> 0(384) DEBUG: <core> [core/pvapi.c:2062]: pv_init_buffer(): PV print
>>>> buffer initialized to [40][16384]
>>>>
>>>> But still when reaching the 4K size inside the $avp that error comes
>>>> out, is there any limit I'm not aware of?
>>>>
>>>> Thanks,
>>>> Enrico.
>>>>
>>>> _______________________________________________
>>>> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>> --
>>>> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
>>>> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com
>>>> Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com
>>>>
>>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>> --
>>> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
>>> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com
>>> Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com
>>>
>>> --
> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com
> Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com
>
>
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