I think you might be a little confused about the difference between
appengine's
transaction in a distributed environment and an enterprise 2-phase
transaction
in a more classic client server architecture?
appengine uses a distributed datastore, so entities are stored all
over the place by
Hi friends...!
Am new to Google app engine
Am deploying projects in GAE using Java codes
But i dont know how to use Spreadsheet api in that
Can we use spreadsheet api...?
If so please tell me how...?
Thanks in advance.
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Hi Rambo,
First update appengine-web.xml by adding
system-properties
property name=com.google.gdata.DisableCookieHandler value=true/
/system-properties
Also refer to the simple steps from Google
http://code.google.com/apis/spreadsheets/data/2.0/developers_guide_java.html
Thanks
George
Hello,
I have the following
Class Party {
@Long id;
KeyTenant tenantKey;
String firstname;
}
Party p = new Party();
KeyTenant tenantKey = new KeyTenant(Tenant.class, mmc);
p.setTenantKey(tenantKey);
// create a Party in empty namespace
KeyParty partyKey = ofy.put(p);
Now, I do the following,
I tried using the mapper with namespace entities. The mapper fails to run
and complains
com.google.appengine.tools.mapreduce.MapReduceServlet handleCommand:
Got exception while running command
java.lang.RuntimeException: Got an IOException while trying to make splits
Caused by:
Hi coders,
I have a little quandary here - I'm in the early stages of developing an app
that in essence, manages the details of companies. The 'main' objects as it
were, are accounts (ie a client of ours - it's a bit like a CRM system)
I decided to use the company name as the unique ID, but
I have tried using deferred tasks in Apache Wicket.
They do indeed run, but I cannot access the bulk of my data exchange
code since it needs the context of an application and/or a session to
work.
I have reverted to using enqueued tasks to fire up a web page and do
my processing from there. But
My config: Eclipse Version: 3.6.2 / Windows 7 64 Bits
I carefully followed all the instructions to install the AppEngine eclipse
plug-in and to execute the sample app. However I am getting the following
problem.
Any help very much appreciated.
Cheers
Jun 2, 2011 2:03:08 PM
This is the classic synthetic key vs natural key debate, and the
general consensus is that synthetic keys are almost always the way to
go. For exactly the reasons you describe. Yup, I think you answered
your own question :-)
Jeff
On Thu, Jun 2, 2011 at 4:21 AM, Drew Spencer
I dont see anything wrong with your xml file.
I was able to deploy my backends here is my code
?xml version=1.0 encoding=UTF-8?
backends
backend name=mybackend
classB2/class
instances5/instances
options
dynamictrue/dynamic
Hi,
Using mapper i am trying to allocate id's to the entities which are already
in the name space. And i am using appengine-java-sdk-1.5.0.
But when i run the mapper its throwing the exception. And i could not find
what is the reason and also unable to stop the mapper ? what is this
exception ?
Hi experts,
I'v build a web application with three entry points so far:
registration
login
start page
As you can imagine I want to (or have to) be able to dynamically redirect a
user - depending on his authentication/session validation, etc. - to the
correct entry point, regardless which
Hi everyone:
I try to access spreadsheets in my app and get the following error.
The app works fine as I deploy it in GAE but always get errors in dev
mode.
Can anyone helps? I will appreciate a lot.
java.lang.NoClassDefFoundError: com/google/gdata/util/
AuthenticationException
at
Hi All,
I am new to Google App Engine. I was trying to add task to queue.
Its adding task to queue but task never gets executed.
To add task to queue, i did following steps.
1) created queue.xml as...
queue-entries
queue
namereadwebsitequeue/name
rate20/s/rate
Not sure if this is the best pattern for using the backend to be
honest. I would suggest that you don't use the backend for end user
web requests. Here are a couple of alternatives:
- Trigger the backend process using a task so it is independent of the
client web request. Indicate to the end user
Most every GWT app has only one entry point not counting the static html in
the war file.
The three pages you described are commonly set up as separate panels/views
that are dynamically placed into a main div within single page load.
You may want to read up on using
Please do a search when you ask a question:
https://groups.google.com/forum/#!searchin/google-appengine/SMS$20account$20already$20verified
https://groups.google.com/forum/#!searchin/google-appengine/SMS$20account$20already$20verified
http://code.google.com/appengine/kb/sms.html
Ikai,
thanks for your reply. I already did a search and I did not find the answer
to my problem.
On other posts, one of the developer there told the person that they fixed
it and to try again.
I have Verizon in the US and I have received numerous SMS messages before,
even a calendar reminder a
Hi,
Did you specifically read
http://code.google.com/appengine/docs/java/tools/localunittesting.html#Writing_Task_Queue_Tests
for local tests
Via the provided sample, you can access the scheduling params of your
task
regards
didier
On Jun 2, 2:04 pm, ramesh chiluverirame...@gmail.com wrote:
Hi,
Did you check the source code at
http://appengine-mapreduce.googlecode.com/svn/trunk/java/src/com/google/appengine/tools/mapreduce/AppEngineJobContext.java
the comments at the point where exception is thron may help you
understand why you get it
regards
didier
On Jun 2, 7:00 pm, Santosh
Hi,
the beauty (or the horror...) of Java apps with GWT is that you can
stay alway in the same page: so, you don't need multiple urls with
redirects between them by any mean.
You can just programmatically decide in the java code of your unique
servlet which content you decide to put on the page.
Hi all:
I'm Using GAE 1.5.0 java, reproduct the bug is easy:
protected void doGet( HttpServletRequest req, HttpServletResponse resp )
throws ServletException, IOException
{
UserService userService = UserServiceFactory.getUserService();
if( !userService.isUserLoggedIn() )
Greg D wrote a while ago:
I know I haven't been responding in this thread a lot but I've been reading
what everyone is saying and working with the team here to map out some of the
details in light of this. I'll post next week with another update on the
additional aspects that are finalized
On Thu, Jun 2, 2011 at 6:24 PM, Sergey Schetinin ser...@maluke.com wrote:
Greg D wrote a while ago:
I know I haven't been responding in this thread a lot but I've been
reading what everyone is saying and working with the team here to map out
some of the details in light of this. I'll post
On 2 June 2011 16:01, Vinuth Madinur vinuth.madi...@gmail.com wrote:
On Thu, Jun 2, 2011 at 6:24 PM, Sergey Schetinin ser...@maluke.com wrote:
Greg D wrote a while ago:
I know I haven't been responding in this thread a lot but I've been
reading what everyone is saying and working with the
If I configure my app to respond to mail, is there any way to prevent a
malicious user from spamming that address to drive up my incoming bandwidth
and cpu costs? Also, is there a message size limit when sending to the app?
Thanks!
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By asp.net is slow, and efficient language, are you comparing with java?
the only language that will has concurrency support in GAE atm.
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You can protect yourself from spam/filter messages by using a gmail/google
apps mail box to forward the message to your application.
The message size seems to have no limit, even for attachments (I tested up
to 10mb).
On Thu, Jun 2, 2011 at 10:38 AM, J C ciho...@gmail.com wrote:
If I configure
Security through obscurity is really the only way?
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Isn't it prudent to say that GAE will do all the loadbalancing for you
when they have more datacenters overseas?
On Jun 1, 10:45 am, Geoffrey Spear geoffsp...@gmail.com wrote:
On Jun 1, 1:32 pm, prasanna pjaganat...@gmail.com wrote:
Hi
Is there a way to specify the preferred location where
I want to know if I can allow a second account (other than me, the app
owner) to be able to deploy an app on my behalf.
The main purpose would be to have an app (an online IDE) deploy a
customer app without asking for his login/pass info (safety reasons).
Thanks in advance!
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On Thu, Jun 2, 2011 at 8:52 AM, Jonathan Chen tamasia...@gmail.com wrote:
Isn't it prudent to say that GAE will do all the loadbalancing for you
when they have more datacenters overseas?
I wouldn't count on this happening anytime soon. It would be
difficult to maintain application performance
Yep, you can achieve this through Administration Permissions in your
app dashboard.
The account has to be a google account AFAIK.
On Thu, Jun 2, 2011 at 1:22 PM, roberto.cr roberto...@gmail.com wrote:
I want to know if I can allow a second account (other than me, the app
owner) to be able to
*Thank you* Moishe. Problem solved - I was going batty, being
convinced it was a problem with my code...
- Ben
On May 17, 9:06 am, Moishe mois...@google.com wrote:
Hi there. You've discovered a bug in the dev_appserver; this case
should work fine in production and will be fixed in 1.5.1.
Hi to the Google support team,
We keep getting lots of quota exceeded messages:
QuotaExceededError.QUOTA_EXCEEDED @ ; trigger:'You have exceeded the
quota in the following categories : RequestsPerMinute. Please retry
your request after 30 seconds.'
Could you increase the limit?
Thanks
Yaron
Hi,
I'm using URLConnection interface to make http requests to an
endpoint. Unfortunately that endpoint takes more than 10 seconds to
respond to my request. As I could test, and read in the specs, the GAE
limits the connection timeout to 10 seconds.
Is there any way where I can avoid or raise
Hi, wrote a new app 2 days ago and realised that I need to tweak one
feature and that needed a kind of query needing composite index. Added
that index manually but that index shows building for more than 24
hours now. My entity hardly 10-15 rows. Other entities of my app are
also very tiny.
Hi all, hopefully this is a simple one.
I'm trying to get a long running process started on a backend, and are
using the following to attempt to start it.
taskparams = {
'params': {
'system': 'netsuite',
},
'url': %s %
Hello Google App Engine,
Hope that you are well.
The Google Directions Widget is no longer working correctly on my
church's Web site at:
http://triumphantchurch.org/contactus.html
It worked fined initially, but for some reason it is not working now.
To make sure, I cut-and-pasted the the
Hi everyone,
I'm currently working on a project whose login system is entirely based on
Google Login.
Thats is, sessions, datastore, and so on.
I would like to use Facebook Login (Connect with facebook).
So my questions are:
1. Is it possible to substitute Google Login with Facebook Login?
2.
It's possible to implement a SSO (single sign on) with SAML. Its also
possible to use a federated login with OpenID or OAuth.
I didn't tried the federated login option yet, but it should be a lot easier
to implement than SAML (wich lacks of documentation)
Have a look here:
Easier but undocumented. All right! Thank you so much for your answer.
I'll take a look at this material, and let you know how it goes :)
On Jun 2, 2011, at 1:55 PM, Felipe Meirelles wrote:
It's possible to implement a SSO (single sign on) with SAML. Its also
possible to use a federated login
Actualy, SAML is the one that lacks of docs. Thats why I think OAuth/OpenID
is easier to start. Reading what I wrote realy leads to understand the
other way :b
On Thu, Jun 2, 2011 at 2:57 PM, Hery Ratsimihah aeonzam...@gmail.comwrote:
Easier but undocumented. All right! Thank you so much for
Hey Mark,
Backends support in dev_appserver is currently experimental, and while most
things work, Task Queues are something that's fairly broken at the moment.
When you run with --backends, the dev_appserver divides itself into
multiple processes, and all tasks are currently run by Remote
On Jun 2, 7:54 am, J C ciho...@gmail.com wrote:
Security through obscurity is really the only way?
You make it sound like a bad thing. All security is through obscurity.
Even RSA encryption is only as good as not knowing the key to decode
it. Whoever started that Security through Obscurity
Not all security is through obscurity. I have a 800 pound Gorrilla who
guards my server. Now that I told you that, it's not obscurity, it's
Brutish Strength. Well that and he is really good at configuring a Pix
Firewall, he got his CNE while learning ASL.
-Brandon
-Original Message-
Hello,
I would like to expose one of my backend so it accepts client requests. I
configured it adding public option. Everything works fine via
backendName.appName.appspot.com. Now I wont to point my custom domain to that
backend. I tried to do so the way it described in documentation of adding
Hi,
Thanks for reply. I found reason why it get stuck: it was running out of memory.
I have investigated my code and could not find any reasons of memory leak.
Moreover, I created very simple backend that mimics behavior of my original one
and still experienced the leak. What I did is i
About link with reference to logging api.. Are there anything like this in Java?
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This isn't really an example of security via obscurity. Assume the incoming
email handler is some random value - that could be considered your shared
secret. A more precise definition can be found here:
http://en.wikipedia.org/wiki/Kerckhoffs's_Principle. Even if an attacker
knows you're doing
Hi Greg,
2nd next week ending :)
Any update for us?
Regards,
Vanni
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I recently started using channels in one of my apps (python).
Everything seems to work as expected but I noticed my CPU working very
hard (MacOS). With the DEBUG on I see several channel polling messages
per second.
I am wondering whether this is normal or I should start digging on
what I am
As of a few hours ago, I've been getting quite a few 500 errors and deadline
exceeded exceptions, but my code has not changed at all. When requests do
actually go through, the response times are very high, (20-25 seconds) but
the cpu ms used is very low, which leads me to believe that the
Also, getting 500 errors (deadline) on a missing favicon instead of a 404.
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Imagine that I was a greedy business manager at Google. Then I would cram in
100 instances into each GAE server with one (multicore) CPU. That's 100 *
0.08 * 24 * 30 = $5,760 per month for each server. How's that for profit
margin? Larry Page would of course be very glad. Not.
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