If I'm reading the current status graphs correctly they're regularly seeing 1.5-2.5 second queries and 400ms direct fetches. That seems unbearably bad. Can anyone running mission critical apps on the platform comment?
Yeah we've been freaking out about this. We have our app used in the classroom, and have had several sessions disrupted because of this. Needless to say our customers were pissed. We're in the process of doing an emergency move over to EC2 because of these issues. That being said, I must admit that this is a really decent response on Google's part. Unfortunately the problems go deeper than just these latest problems…
Just wondering, are you porting to mySQL, Cassandra, or HBase? We're currently moving off app engine also, and would love to hear more about your final setup.