DeadLineExceededError, IOExceptions

[Rashmi S]

Found this in the log file:

This request caused a new process to be started for your application, and thus caused your application code to be loaded for the first time. This request may thus take longer and use more CPU than a typical request for your application.

What does this mean? My deployed project on appspot keeps failing.. 

[Katayoon (Cloud Platform Support)]

In high spike situations, Google App Engine would anticipate traffic(due to spike) and makes a few instance ready for you. The exact configuration for spinning up and winding down would be based on your appengine-web.xml configuration file(for Java). You may take a look at “Managing App Resources” documentation for a general overview on how to control the idling instances.

The general DeadLineExceededError can have many causes. There is a likelihood that a new instance loading is too slow to handle the requests. Hence, warmup request would resolve the issue.