On Apr 3, 10:13 am, "Michael Bayer" <mike...@zzzcomputing.com> wrote: > Josh Winslow wrote: > > > On Apr 2, 9:21 pm, Michael Bayer <zzz...@gmail.com> wrote: > >> On Apr 2, 4:41 pm, Josh Winslow <jwins...@gmail.com> wrote: > > >> > This is the stack trace: > >> > ==================== > >> > ⇝ InvalidRequestError: The transaction is inactive due to a > >> rollback > >> > in a subtransaction. Issue rollback() to cancel the transaction. > >> > clear this > > >> you are squelching the original exception somewhere. this error > >> only occurs after an exception has already been raised, and the > >> Session is used again without resetting its state. > > > So this belongs on the Pylons list? Because it literally is the first > > possible query of the request. It only occurs in periods of high load > > and it seems like the contextual session is getting reused for a new > > web request. > > theres an error being raised likely in a previous request within the same > thread. it should be in your logs. > > Do your BaseController like this (and please get the pylons ppl to > document this if they haven't already): > > class BaseController(WSGIController): > > def __call__(self, environ, start_response): > """Invoke the Controller""" > try: > return WSGIController.__call__(self, environ, start_response) > except: > meta.Session.rollback() > raise > finally: > meta.Session.remove()
I already had the finally block set, though not the rollback on the exception. From my reading of the documentation at http://www.sqlalchemy.org/docs/05/session.html#contextual-thread-local-sessions it would appear that doing a remove in a finally block should be sufficient. I'll throw the except line in however, and see if that resolves the problem. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
