[asterisk-bugs] [JIRA] (ASTERISK-25891) Crash using ODBC in mysql with heavy usage

[Ross Beer (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=230155#comment-230155 ] 

Ross Beer commented on ASTERISK-25891:
--------------------------------------

Carlos: Threading=0 reduced the number of crashes however I have upgraded my CentOS unixODBC to 2.3.4 and the latest mysql-odbc-connector to see if this resolves the issue fully.

> Crash using ODBC in mysql with heavy usage
> ------------------------------------------
>
>                 Key: ASTERISK-25891
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25891
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_odbc
>    Affects Versions: 13.8.0
>         Environment: debian jessie 8.4 (KVM virtual machine)
>            Reporter: Carlos Oliva
>            Assignee: Unassigned
>         Attachments: backtrace1.txt, backtrace2.txt, backtrace3.txt, bt_libmysql5_7.txt
>
>
> testing release 13.8.0 I found crashes making heavy use of ODBC with mysql. This issue seems to not happen in 13.7.2 release.
> We make a heavy usage of mysql using ODBC, dialplan functions and CEL. The isse seems to happen with 4 or 5 calls using queues, cel logging to mysql and lots of database calls in the dialplan.
>  I think maybe related to Change-Id: I37a84def5ea4ddf93868ce8105f39de078297fbf (res_odbc: Remove connection management) because it directly affects to odbc connection settings. 
> I will attach some backtraces where you can see clearly the issue is related to odbc and libmysqlclient.so.18



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