[asterisk-dev] write my self app. Debug

info at magnussolution.com info at magnussolution.com
Wed Sep 12 18:10:38 CDT 2018

thanks for you help.

I try use backtrace. But I no a expert. 

I using cents 7 64x

gdb -se "asterisk" -ex "bt full" -ex "thread apply all bt" --batch -c core.13414 > /tmp/backtrace.txt

warning: exec file is newer than core file.
Missing separate debuginfo for /usr/lib64/libmyodbc5.so

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Missing separate debuginfo for /usr/lib64/libmyodbc5.so
Core was generated by `asterisk -vvvvvvvg'.
Program terminated with signal 11, Segmentation fault.
#0  ast_odbc_release_obj (obj=0x0) at res_odbc.c:712
712		struct odbc_class *class = obj->parent;

to use ODBC on centos7 and mariaDB 10 I install it

yum -y remove mysql-connector-odbc
yum -y localinstall --nogpgcheck http://dev.mysql.com/get/Downloads/Connector-ODBC/5.3/mysql-connector-odbc-5.3.11-1.el7.x86_64.rpm
ln -s /usr/lib64/libmyodbc5w.so  /usr/lib64/libmyodbc5.so 

> On 12 Sep 2018, at 19:28, Alex Villací­s Lasso <a_villacis at palosanto.com> wrote:
> El 12/9/18 a las 14:33, info at magnussolution.com escribió:
>> that’s correct. I wrote a ael context with func_odbc and this work very well.
>> But, using my app_mbilling.c work more faster than ael and func_odbc.
>> example:
>> agi 15 CPS
>> ael-func_odbc 30 CPS
>> native application 50 CPS
> Have you tried yet FastAGI? Ordinary AGI is slowed down by the spawning of an entire process per call. FastAGI just requires a daemon that listens to requests on a TCP/IP port. This is way less invasive than writing a whole new Asterisk application in C. Any bottlenecks would now be located in the FastAGI server and could be tuned without touching the Asterisk core.
> As an aside, just a wild guess, but I think the crashes could be due to one or more race conditions, and the proper locking required to solve them would slow down your C application to the ael-func_odbc level.
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