I know that there was planned downtime yesterday (see http://groups.google.com/group/google-appengine-downtime-notify if you aren't monitoring it already) as part of their plan to try and fix their datastore performance issues (mentioned here http://googleappengine.blogspot.com/2010/07/upcoming-datastore-downtime.html). It sounds to me like the problems your facing are very much linked to these changes!
On Jul 8, 10:39 am, Marc Guillemot <[email protected]> wrote: > Hi, > > yesterday my application worked just fine. Today data isn't reachable > with a simple query anymore (data is here, I can find it through the > Data Viewer). > > Here is the exception thrown: > ---------------- > Uncaught exception from servlet > The primary key for mymodel.JarData is an unencoded string but the key > of the corresponding entity in the datastore does not have a name. You > may want to either change the primary key to be an encoded string (add > the "gae.encoded-pk" extension), change the primary key to be of type > com.google.appengine.api.datastore.Key, or, if you're certain that this > class will never have a parent, change the primary key to be of type Long. > org.datanucleus.store.appengine.FatalNucleusUserException: The primary > key for mymodel.JarData is an unencoded string but the key of the > corresponding entity in the datastore does not have a name. You may > want to either change the primary key to be an encoded string (add the > "gae.encoded-pk" extension), change the primary key to be of type > com.google.appengine.api.datastore.Key, or, if you're certain that this > class will never have a parent, change the primary key to be of type Long. > at > org.datanucleus.store.appengine.DatastoreFieldManager.fetchStringPKField(DatastoreFieldManager.java:246) > at > org.datanucleus.store.appengine.DatastoreFieldManager.fetchStringField(DatastoreFieldManager.java:192) > at > org.datanucleus.state.AbstractStateManager.replacingStringField(AbstractStateManager.java:1180) > .... > ---------------- > > My question: how can it happen, that changes in DataStore have such > breaking consequences? And how often will it happen? > > Cheers, > Marc. > -- > Blog:http://mguillem.wordpress.com -- 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.
