[OpenSIPS-Users] ERROR:core:proto_udp_send

[Dawid Mielnik]

Hi Liviu,

Thanks for your answer!

I am still somehow trying to relate this to the rest_client problems
context as it happened in exact same time (the errors have not been oberved
in other situations even with higher traffic).
I do not know internals of OpenSIPS - but is it possible that this is
somehow related to receive buffers ? That is, OpenSIPS threads are busy
waiting for rest_get responses (which have long delays) which leads to slow
processing of incoming traffic and hence these errors ?
Or is this not related in any way?

Thanks,
Dawid


On Thu, Jul 27, 2017 at 11:07 AM, Răzvan Crainea <razvan at opensips.org>
wrote:

> Hi, Dawid!
>
> I think the error appears when the Networking send buffers are full. If
> your system has enough resources, you can try to increase the memory used
> by the buffers[1].
>
> [1] https://www.cyberciti.biz/faq/linux-tcp-tuning/
>
> Best regards,
>
> Răzvan Crainea
> OpenSIPS Solutionswww.opensips-solutions.com
>
> On 07/26/2017 08:21 PM, Dawid Mielnik wrote:
>
> Hi Liviu,
>
> Exact version info:
>
> version: opensips 2.2.2 (x86_64/linux)
> flags: STATS: On, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC,
> F_MALLOC, FAST_LOCK-ADAPTIVE_WAIT
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
> MAX_URI_SIZE 1024, BUF_SIZE 65535
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> git revision: 9eb177d
> main.c compiled on 11:43:55 Nov  3 2016 with gcc 4.4.7
>
> BR,
> Dawid
>
> On Wed, Jul 26, 2017 at 7:09 PM, Liviu Chircu <liviu at opensips.org> wrote:
>
>> Hi Dawid,
>>
>> This seems to have been fixed a long time ago [1], so I'm a bit puzzled.
>> Just to be 100% sure, can you try to locate the exact binary path your
>> OpenSIPS service is running on, and figure out the exact version that way?
>> (e.g. output of "/usr/local/sbin/opensips -V")
>>
>> [1]: https://github.com/OpenSIPS/opensips/commit/d3aaf44c
>>
>> Liviu Chircu
>> OpenSIPS Developerhttp://www.opensips-solutions.com
>>
>> On 26.07.2017 19:11, Dawid Mielnik wrote:
>>
>> Hi All,
>>
>> Can you help me understand the cause of these error messages ?
>>
>> [...]
>> Jul 26 09:56:00.259767 ERR 32258  ERROR:core:proto_udp_send:
>> sendto(sock,0x7fb4817b3ba8,563,0,0x7fb484c23f10,16): Resource
>> temporarily unavailable(11)
>> Jul 26 09:56:00.259813 ERR 32258  ERROR:core:proto_udp_send:
>> sendto(sock,0x7fb4817b3ba8,563,0,0x7fb484c23f10,16): Resource
>> temporarily unavailable(11)
>> Jul 26 09:56:00.259822 ERR 32258  ERROR:core:proto_udp_send:
>> sendto(sock,0x7fb4817b3ba8,563,0,0x7fb484c23f10,16): Resource
>> temporarily unavailable(11)
>> Jul 26 09:56:00.259831 ERR 32258  ERROR:core:proto_udp_send:
>> sendto(sock,0x7fb4817b3ba8,563,0,0x7fb484c23f10,16): Resource
>> temporarily unavailable(11)
>> Jul 26 09:56:00.259839 ERR 32258  ERROR:core:proto_udp_send:
>> sendto(sock,0x7fb4817b3ba8,563,0,0x7fb484c23f10,16): Resource
>> temporarily unavailable(11)
>> Jul 26 09:56:00.259847 ERR 32258  ERROR:core:proto_udp_send:
>> sendto(sock,0x7fb4817b3ba8,563,0,0x7fb484c23f10,16): Resource
>> temporarily unavailable(11)
>> [...]
>>
>>
>> Opensips 2.2.2.
>> I am also using rest_client - for each call, before being proxied, an
>> http request is made by rest_client. Before and during this time the http
>> server was overloaded and took quite long time. I am suspecting that this
>> is linked to it but would like to understand how exactly.
>>
>> Thanks,
>> Dawid
>>
>>
>>
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