How can I avoid the delay of the GoogleAppEngine DataStore?

Question

I am new to App Engine and wrote a sample application. If I create or update an object:

Entity record = new Entity(...);
... set properties
DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
datastore.put(record);

and then redirect to the page where the new or updated object is displayed

resp.sendRedirect("MainPage.jsp");

where is the following code executed

DatastoreService datastore =
DatastoreServiceFactory.getDatastoreService();   
Query query = new Query(...).addSort(..., Query.SortDirection.DESCENDING); 
List<Entity> entities = datastore.prepare(query).asList(FetchOptions.Builder.withLimit(20));

The new entry is not in the list. The page refreshes (as shown in the timeline), but a new record or a change to an existing record is only displayed after a delay of up to several seconds when I refresh the page.

How can this be avoided? Is it possible that the DataStore is not suitable for such a thing?

I am using GAE's local Eclipse test environment with Windows XP 64.

Answer 1

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Answer 2

GAE, - Memcache ( DataStore ).