On Wed, Feb 10, 2010 at 3:09 PM, Spines <[email protected]> wrote: > I get a deadlock on the development server. It happens about once > every 4 times I startup my app. It happens at PMF.<clinit>:11 the > first time I access my PMF class, which is just a copy paste of the > example PMF class from > http://code.google.com/appengine/docs/java/datastore/overview.html. > Deeper down the call tree I can see that it is hung at > Class.getDeclaredConstructors0. > > We fixed this bug recently but it did not make it into the upcoming 1.3.1 release. It should be fixed in the next release after that.
> What my app does is: upon loading of the home page, it simultaneously > sends 5 jquery requests to the app. Each request takes about a second > or two because it initializes a different thing, such as getting the > PMF, or loading Spring, etc. > > I'm not sure if it would also deadlock on the production app engine. > > No, this deadlock is limited to the DevAppServer. > Does anyone know what could cause this? Is the development server not > meant to handle multiple simultaneous requests? Could this also be a > potential situation on the production server? > > Note: When I do all of the initializations synchronously instead of > sending out requests simultaneously, everything works fine. > > That makes sense. Can you use that as a workaround until 1.3.2 is released? Feel free to file a bug in the issue tracker. We'll update it when the fix is rolled out. Thanks, Don -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" 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/google-appengine-java?hl=en.
