[Freeswitch-users] Lock wait timeout exceeded; try restarting transaction

[Lloyd Aloysius]

This is newly installed switch. Only one call and two registrations. I do
not do any queries against the DB. I do not see the problem again in last
24 hours. But want to know how to solve this issue.

Switch - 2 Quad Core / 24 GB Memory / 15RPM SCSI , DB - 2 Quad Core / 24 GB
Memory / 15RPM SCSI . Switch and DB connected through a cross over cable
directly. I do not think this related to a environment issue.

Thanks
Lloyd



On Tue, Jul 16, 2013 at 7:01 AM, Steven Ayre <steveayre at gmail.com> wrote:

> +1
>
> The error is the actual MySQL error, so yes it's definitely a lock timeout.
>
> This means two different queries were trying to access the same data at
> the same time. Normally one'll wait until the other is finished, but if it
> waits too long you get the lock timeout error.
>
> It can be caused by a query taking too long, or a transaction modifying
> the data but then taking too long before commit. To avoid that make sure
> MySQL is tuned correctly. Good indexes on the tables and good sizes for the
> cache buffers.
>
> Make sure you're using a proper index for the delete operation, I'd also
>> avoid ORs if possible.
>
>
> The query is part of mod_sofia, so isn't modifiable. Having a
> KEY(hostname,expires) on sip_dialogs may help though if it doesn't already
> exist (check with SHOW CREATE TABLE sip_dialogs).
>
> Avoid accessing sip_dialogs from any of your own code to minimise the
> number of things that might block each other.
>
> -Steve
>
>
>
> On 16 July 2013 06:48, Rafal Gwizdala <rafal.gwizdala at gmail.com> wrote:
>
>> I'd bet this is a lock timeout, caused by database operation taking too
>> long.
>> Make sure you're using a proper index for the delete operation, I'd also
>> avoid ORs if possible.
>> R
>>
>>
>> On Tue, Jul 16, 2013 at 4:21 AM, Lloyd Aloysius <lloyd.aloysius at gmail.com
>> > wrote:
>>
>>> Hi,
>>>
>>> I got the following error
>>>
>>> 2013-07-15 21:47:41.061450 [ERR] switch_odbc.c:514 ERR: [delete from
>>> sip_dialogs where (expires = -1 or (expires > 0 and expires <= 1373939087))
>>> and hostname='mydomain.com']
>>> [STATE: HY000 CODE 1205 ERROR: [unixODBC][MySQL][ODBC 5.1
>>> Driver][mysqld-5.5.32]Lock wait timeout exceeded; try restarting
>>> transaction]
>>>
>>> and the odbcinst.ini
>>>
>>> [MySQL]
>>> Description     = ODBC for MySQL
>>> Driver          = /usr/lib/libmyodbc5.so
>>> Setup           = /usr/lib/libodbcmyS.so
>>> Driver64        = /usr/lib64/libmyodbc5.so
>>> Setup64         = /usr/lib64/libodbcmyS.so
>>> FileUsage       = 1
>>> Threading       = 0
>>> UsageCount      = 1
>>>
>>> This is a mysql memory leak? How can fix this error?
>>>
>>> DB Server running with 24 GB memory and 2 Quad Core Xeon
>>>
>>>
>>> Thanks
>>> Lloyd
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> 
>>> 
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://wiki.freeswitch.org
>>> http://www.cluecon.com
>>>
>>> FreeSWITCH-users mailing list
>>> FreeSWITCH-users at lists.freeswitch.org
>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>>> http://www.freeswitch.org
>>>
>>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
>> FreeSWITCH-users at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20130717/a6035bf6/attachment-0001.html