Task Queue have been behaving strangely from the last 24 hours. You can have a look at this thread as well - https://groups.google.com/d/topic/google-appengine/IjygaiOT0Ho/discussion and check your logs to see if you are facing those errors too.
The appengine team has seen that thread and they said they're on it. But I hope they see this one and check why the task queues are stuck. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.