[Interest] QSqlDatabase

Andre Somers andre at familiesomers.nl
Wed May 8 07:46:46 CEST 2013

Op 7-5-2013 18:06, Duane schreef:
> I don't think this is a Qt error, nor an error in our apps as nothing
> has chanced in them.  I'm assuming it something else affecting the
> server.  We aren't the only application on this database.  I need some
> way to find what is causing it.  I am adding some debugging to report
> the database errors but the .err file from mysql shows no errors so I am
> not optimistic.
You might want to investigate the stability of your network connection 
between your server and your client.


>>> One thing that I noticed, we have multiple apps and on this installation
>>> one set of apps is running using Qt4.5.1  and another set is using
>>> 4.7.1.  They both use the plugins for MySql.  I'm wondering if there
>>> could be some issue with that?
>> No, it shouldn't be.
> I don't think so either.  I have checked a couple of other installations
> that don't have this problem and they are set up similarly.  I notice
> that the others ones have a higher number of max connections so I'm
> looking at that. I've increased the number and asked their IT guys to do
> "show processlist" if this happens again.
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