Hi Luca,
Would also advise you to read the book "Programming Google App Engine"
by Dan Sanderson (Google engineer) full of technical stuff that you
will not find elsewhere on the net.
regards
didier
On May 1, 12:26 am, Brandon Donnelson wrote:
> http://labs.google.com/papers/bigtable.html- her
Hi I ran into the following issue while running a joined query between a
Date range through JDO, is there any work around for this??
org.datanucleus.store.appengine.query.DatastoreQuery$UnsupportedDatastoreFeatureException:
Problem with query =
:fromDate && d.date <= :toDate && userId == :use
http://labs.google.com/papers/bigtable.html - here is a good read
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Demo to test my point:
http://demogwtcanvas.appspot.com - Demo
http://code.google.com/p/gwt-examples/source/browse/trunk/DemoGwtCanvas/src/org/gonevertical/democanvas/client/UploadImage.java
- source code for it
Brandon Donnelson
http://gwt-examples.googlecode.com
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App Engine has been abstracting all their implementation details away
from the developer, which is great. I'm however a little curious in
knowing how their infrastructure works... not only how it works but
also how it scales geographically. Living in Europe this has a strong
impact on my decision t
I can't send base64 encoded data to the blobstore
(Content-Transfer-Encoding: base64 ). The blobstore isn't decoding the data
correctly. It saves the data as plaintext (base64 string)
I thought I had this working the other day, but today, I can't seem to find
whats going wrong with it. My uploa
http://code.google.com/appengine/docs/java/overview.html :
The JVM runs in a secured "sandbox" environment to isolate your application
for service and security. The sandbox ensures that apps can only perform
actions that do not interfere with the performance and scalability of other
apps. For i
Hi,
You can't multithead directly in GAE: it's forbidden.
You rather gain parallelism via queued tasks.
You don't really care in the servers are multi-core or not: gae starts
more jvms automatically when needed.
regards
didier
On Apr 30, 6:14 pm, hadf wrote:
> Hello,
>
> Are GAE servers mult
Hello,
Are GAE servers multicore ? I mean, do we have gain of performance
when using mutithreading ?
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To u
What I do is use userService.createLoginURL("/replaceMeInJs"), then in my
javascript, I replace /replaceMeInJs it when ever I need it and also have to
change the return trip method. I have to make sure its encoded properly too.
This is what I do in my GWT app when I need it. This is probably ove
I haven't seen a profile api yet. If there was, I would like something like
that too. I think they need a friends api too.
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http://code.google.com/appengine/docs/java/config/queue.html#Queue_Definitions
- add a queue.xml?
Brandon
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I'm wondering if the task was retrying due to exception thrown. One way I
found the task will stick to the que for longer period of time.
http://code.google.com/appengine/docs/java/config/queue.html#Configuring_Retry_Attempts_for_Failed_Tasks
- looks like you setup a que xml. I haven't tried t
I have not mentioned any retry count...so i guess whatever the default one
is being used. (Actually i never want to retry if one fails next one will
take care .. Do you know how to never retry a task.)
On Sat, Apr 30, 2011 at 3:48 PM, Brandon Donnelson
wrote:
> Did they have a high retry count?
Did they have a high retry count?
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google-appengine-java+uns
Hello
Does somebody know, how the XMPP service distributes incoming XMPP messages
if multiple instances of the receiving application have been started?
Will the message be received by all instances or by only one instance?
Thanks for any information
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