On Apr 26, 6:43 pm, edgarsmolow <[email protected]> wrote: > Someone pointed out this article about caching: > > http://entitycrisis.blogspot.com/2007/06/something-looks-like-pylons-... > > Turns out that there's an issue with SQLAlchemy leaving stuff around > from a previous request. Calling session.clear() before making a > request seems to fix the problem. I wonder if there's a setting > someone that can automatically accomplish the same thing, obviating > having to call session.clear() in nearly every controller.
When using SQLAlchemy's thread-scoped Session[1] (which could be considered the default when using SA from Pylons), you normally call Session.remove() in the base controller's call method, probably in a finally block. [1] http://www.sqlalchemy.org/docs/05/session.html#lifespan-of-a-contextual-session > Thanks. > Edgar > > On Apr 26, 6:31 pm, edgarsmolow <[email protected]> wrote: > > > No, I'm using MySQL 5.x. > > > > > OperationalError: (OperationalError) (2006, 'MySQL server has gone > > > > away') > > > Is there an issue with connection pools? > > > Edgar > > > On Apr 26, 5:56 pm, Wyatt Baldwin <[email protected]> wrote: > > > > > On Apr 26, 12:56 am, Wyatt Baldwin <[email protected]> > > > > wrote: > > > > > > On Apr 25, 7:14 pm, edgarsmolow <[email protected]> wrote: > > > > > > > Works fine on my workstation, but after deploying the site to our > > > > > > web > > > > > > server, I'm seeing a strange error. The first time I go to a page, > > > > > > unable to connect to the database which causes an error page to be > > > > > > displayed. Refresh the page, and voila! the page works just fine. > > > > > > > Does anyone know why it can't connect to the database during the > > > > > > initial visit to the page, but can connect after that? > > > > > > Most likely because that first request causes some initialization to > > > > > happen. > > > > On Apr 26, 8:28 am, edgarsmolow <[email protected]> wrote: > > > > > Wyatt, > > > > > It works just fine on my workstation. Could this be an issue in > > > > difference between .ini files? > > > > It's hard to say, but it's certainly possible. > > > > > An email is sent by the site when this occurs (i.e., often). This is > > > > the error: > > > > > OperationalError: (OperationalError) (2006, 'MySQL server has gone > > > > away') u'SELECT accounts.id AS accounts_id, accounts.acct_no AS > > > > accounts_acct_no, ................... > > > > Oh, you're using the Oracle Lite DB (Community Edition, I assume)? > > > That could be part of the problem, as it's got some annoying issues. > > > You might consider upgrading to the full Enterprise version. > > > > > Looks like for some reason the app is unable to connect to MySQL. It > > > > seems that, by refreshing the page, a connection is made and the error > > > > doesn't occur. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/pylons-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
