Hi Max,
Could you please provide input on the following design:
We design for DataSource redundancy. For this we've built a flow which
obtains data from 2 sources: First from GAE DataSource using PreparedQuery
and if that fails (0.5sec timeout) from our backup service feed which we
access using
Currently hasNext() will block on the first batch of results. There is
currently no way to do what you are asking in Java.
On Tue, Dec 7, 2010 at 2:40 AM, Maxim Veksler ma...@vekslers.org wrote:
Hi Max,
Could you please provide input on the following design:
We design for DataSource
Thank you for the information.
We kinda expected that the current implementation will block...
In case anyone wonders our current worked out design is as following: Do
async get to EC2 (takes ~270ms) and right after that do blocking get to
datastore (with timeout of 300ms).
Because we know
i was taking a look at the 1.4.0 javadoc for AsyncDatastoreService. i
see the get, put and delete operations return a Future, but the
prepare methods return a naked PreparedQuery object, and it doesn't
look like PreparedQuery has any async get methods.
does the AsyncDatastoreService not support
Hi Luke,
First the awesome news:
As of 1.4.0, many queries are implicitly asynchronous. When you call
PreparedQuery.asIterable() or PreparedQuery.asIterator(), we initiate the
query in the background and then immediately return. This lets you do work
while the first batch of results is being
