App Engine Local Datastore Content Does Not Persist

I'm running some basic test code, with web.py and GAE (Windows 7, Python27). The form enables messages to be posted to the datastore. When I stop the app and run it again, any da

Solution 1:

As of 1.6.4, we stopped saving the datastore after every write. This method did not work when simulating the transactional model found in the High Replication Datastore (you would lose the last couple writes). It is also horribly inefficient. We changed it so the datastore dev stub flushes all writes and saves its state on shut down. It sounds like the dev_appserver is not shutting down correctly. You should see:

Applying all pending transactions and saving the datastore

in the logs when shutting down the server (see source code and source code). If you don't, it means that the dev_appserver is not being shut down cleanly (with a TERM signal or KeyInterrupt).