kopikopiko wrote:
> Thanks very much for your answers.
> 
> I svn'ed up to 2654 but am still seeing errors. The errors happen more
> frequently after the upgrade. What I'm getting back is:
> 
>   File "C:\Django\hodie\kron.py", line 109, in ?    db_save(this_inst)
>   File "C:\Django\hodie\kron.py", line 14, in db_save    obj.save()
>   File
> "c:\python24\lib\site-packages\Django-0.91-py2.4.egg\django\utils\functional.py",
> line 3, in _curried
>     return args[0](*(args[1:]+moreargs), **dict(kwargs.items() +
> morekwargs.items()))
>   File
> "c:\python24\lib\site-packages\Django-0.91-py2.4.egg\django\core\meta\__init__.py",
> line 1029, in method_save    db.db.commit()
>   File
> "c:\python24\lib\site-packages\Django-0.91-py2.4.egg\django\core\db\backe
> nds\mysql.py", line 76, in commit
>     self.connection.commit()
> _mysql_exceptions.OperationalError: (2013, 'Lost connection to MySQL
> server during query')

Could you send the Django error page you are getting? Just save the html 
and send it to me.

> I tried using try/except on the database save but the 2013 error killed
> my app anyway. I have now managed to work around it by setting a lock
> on writing to the database (using thread.allocate_lock() ) and this
> doesn't kill the application too much. As soon as I allow the thred to
> write to the database I get the errors and I suspect that it is
> simultaneous writes from the thread and the main programme that is
> triggering the error.

Please explain what you actually do. Now I am getting the impression 
that you have your own multithreaded program, which uses Django ORM. Am 
I right? Are we talking about a web site running on multithreaded WSGI 
host or a stand alone local program?

Thanks,

Eugene


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