google-cloud-datastore

In the past month, our Java Google App Engine Standard Web App started getting strange errors at seemingly random times (see stack trace below). Around this time we made the following changes: Switch from Java7 runtime to Java8/Jetty9 runtime (which allowed us more flexibility in linking to a 3rd party payments library). Switch to deploying with the Google Cloud SDK, instead of the separate Google App Engine SDK. Yesterday we experienced 3 periods with errors. One of these occurred from 0530PST to about 0600PST on Feb 28. Suddenly all attempts to load from the database started failing: com

I am looking for nosql key value stores that also provide for storing/maintaining relationships between stored entities. I know Google App Engine's datastore allows for owned and unowned relationships between entities. Does any of the popular nosql store's provide something similar? Even though most of them are schema less, are there methods to appropriate relationships onto a key value store? It belongs to the core features of graph databases to provide support for relationships between entities. Typically, you model your entities as nodes and the relationships as relationships/edges in the

I'm trying to use Mobile Backend Starter in my Android application. In order to do that I need to store some data in the Datastore. I'm using the provided object CloudEntity but I can only consistently insert and read String . That's the example code I used to send data: CloudEntity entity = new CloudEntity(TEST_KIND_NAME); entity.put(KEY_DATE, new Date(System.currentTimeMillis())); entity.put(KEY_CALENDAR, Calendar.getInstance()); entity.put(KEY_LONG, Long.valueOf(Long.MAX_VALUE)); entity.put(KEY_INTEGER, Integer.valueOf(Integer.MAX_VALUE)); getCloudBackend().insert(entity, simpleHandler);

Okay, I have watched the video and read the articles in the App Engine documentation (including Using the High Replication Datastore ). However I am still completely confused on the practical usage of it. I understand the benefits (from the video) and they sound great. But what I am lacking is a few practical examples. There are plenty of master/slave examples on the web, but very little illustrating (with proper documentation) the high replication datastore. The guestbook code example used in the Using the High Replication Datastore article illustrates the ancestor key by adding a new

Trying to store utf-8 into datastore and getting error : Traceback (most recent call last): File "/sinfo/google_appengine/google/appengine/ext/webapp/__init__.py", line 511, in __call__ handler.get(*groups) File "/sinfo/siteinfo/siteinfo.py", line 1911, in get seoEntity.put() File "/sinfo/google_appengine/google/appengine/ext/db/__init__.py", line 833, in put return datastore.Put(self._entity, rpc=rpc) File "/sinfo/google_appengine/google/appengine/api/datastore.py", line 275, in Put req.entity_list().extend([e._ToPb() for e in entities]) File "/sinfo/google_appengine/google/appengine/api