Google Cloud Endpoint performance

Question

What is the performance of Google Cloud Endpoints? In my case a large blob is being transferred. Size is anywhere from 1MB to 8MB. It seems to take about 5 to 10 minutes with my broadband speed being about 1Mb upload.

Note this is being done from a Java client calling an endpoint. The object being transferred looks like this:

public class Item
{
   String type;
   byte[] data;
}

On the java client side, the code looks like this:

Item item = new Item( type, s );
MyItem.Builder builder = new MyItem.Builder( new NetHttpTransport(), new GsonFactory(), null );
service = builder.build();

PutItem putItem = service.putItem( item );
putItem.execute();

Why does it take so long to send one of these up to an endpoint? Is it the JSON parsing that is slowing it down? Any ideas on how to speed this up?

Answer 1

Endpoints is just a wrapper around HTTP requests made to Java servlets (you mention java on client, so I'll make the assumption of java on the server).

This will introduce a very small, fixed, overhead, but the transfer speed of a large blob should be no different whether you are using endpoints or not.

As noted by Gilberto, you should probably consider using Google Cloud Storage (GCS api is slowly replacing the blobstore API). You can use it to upload directly to storage and remove the burden on your GAE app.