[SR-Users] Kamailio stops processing requests over UDP

[Daniel-Constantin Mierla]

On 03.09.19 09:54, Juha Heinanen wrote:
> Juha Heinanen writes:
>
>> Here is two traps taken about 8 minutes apart during the same freeze:
>>
>> https://box.tutpro.com/tmp/gdb_kamailio_20190902_120249
>> https://box.tutpro.com/tmp/gdb_kamailio_20190902_121032
>>
>> During the freeze, it was possible to make MySQL queries to accounting
>> table using mysql cli command.
> Looks like 8 UDP receivers are waiting for futexlock and 8 are in
> udp_rcv_loop.  Those that are waiting for the lock are processing the
> same reply.  Same in both traps.
>
> There is also mysql ping going on by timer process.

Yesterday I started a trip and didn't get the time to look over the last
two traces, I should be able to do it later today.

In the first trace, the ping-pong looked like internally in the
libmysqlclient library before doing the acc insert, probably to wake
up/be sure connection is alive, and that seemed to be stuck.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda