On Tue, 2009-08-11 at 11:06 +0200, Spajderix wrote: > Hi! > > I've written a standalone script, which looks throught a table in db for > tasks to perform. It then starts subprocesses for each task it founds > using multiprocessing.Process class from python. Everything's fine when > there is one task, but when i try to start more subprocesses at once i get: > > OperationalError: (2013, 'Lost connection to MySQL server during query') > raise errorclass, errorvalue > OperationalError: (2006, 'MySQL server has gone away') > > I guess that this happens because all subprocesses share one connection, > and when one of them closes this connection, rest of subprocesses raises > an error.
That certainly sounds believable. We call close() explicitly, too, so that is why ongoing operations are interrupted in the middle. > Do you know a way to go round this problem? If you close the database connection, Django will open a new one the next time it needs it. So I suspect you can work around this by explicitly closing the connection immediately after you start a new process (in the new process). Then the process will get its own connection when you try to do something. Regards, Malcolm --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
