I'm not sure yet to where it is failing. Can you send the exception/trace
too? First step I do is check the ./war/WEB-INF/appengine-generated and see
if the file arrived from the upload, if its not there, the form url is not
working should be something like _ah If you can get the blobkey
Thanks Ikai, I'll open a new thread with this to see if anyone experienced
this problem.
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Hi,
I have been experiencing locks with task queues since last week, specially
when I use dynamic instances in my backends. During minutes, the CPU load
goes to 0% on all instances of a given backend that only processes task
queues; the queue keeps growing, but no single task is executed (and
Hello,
In the Presence sectiono of the Channel documentation, it says:
When you enable channel_presence, your application receives POSTs to the
following URL paths:
- POSTs to /_ah/channel/connected/ signal that the client has connected
to the channel and can receive messages.
-
Bump: I'll put it more simply:
Is there any other way of using external classes in
Eclipse-AppEngine-Projects other than copying their code into the project?
Regards,
Chris
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Thanks in advance for help with this newbie question.
The documentation states:
When an application running in the development server calls the Mail service
to send an email message, the message is printed to the log. The Java
development server does not send the email message.
What log is
Sorry if this is double-posted by I waited 24 hours and never saw the
original...
I'm working with GAE and GWT using Java and I have a couple of questions
that I hope someone can point to some documentation or a good example to
answer.
In my application I need to upload a simple text file
I'm having some issues using the Blobstore and FileServices and wonder if
someone could point me at some documentation or samples?
I have a GAE app with an uploader service and I can upload text files from
my app (using a FormPanel with a GWT FileUploader) with not problems. I can
see the
Hi,
We are developing GAE app with using XMPP service. This GAE app communicates
with XMPP bots which is associated with gmail account through
talk.google.com XMPP server.
GAE --(XMPP message as request)- XMPP Bot on Desktop -(XMPP
message as response) GAE
We have been
Hi,
i want to host an SMS application on GAE . All my traffic comes
from SMS GATEWAY with a single IP address.
Is that fine ? or Will there be any problems like unusual traffic
errors or any other issues ?
thanks in advance,
ravi.
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I posted a question yesterday but after 24 hours it hadn't shown up... just
reposted. Sorry if it is a double-post.
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Any one has suggestions on this? GAE doc says A datastore property can have
more than one value. In JDO, this is represented by a single field with a
Collection type, where the collection is of one of the core value
I found an answer:
http://blog.christoffer.me/2011/01/sharing-code-between-multiple-java.html
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Even though it is the same channel, when i call the create method
(let's say i hit refresh on my browser, and the channel is created at
page load) my Channel Api quota for created channels rises...
On Jul 27, 7:01 am, Moishe mois...@google.com wrote:
Answers below:
On Jul 26, 10:21 am,
Frooti,
It will work fine, you just have to be aware of the URLFetch service
limitations, if you're going to communicate with the SMS gateway through
http request / response, then the limitation is that your request / response
should not take more than 10 seconds, but you can also try another
Hi Jayr,
Thanks for your reply Jayr . I will make my question more clear. My
users send queries through SMS which will be routed to my app from SMS
GATEWAY(single IP address) . My app processes those queries and reply back
through SMS (again through SMS GATEWAY) .I can reply using URL
Hi Yann,
I'm running an older version of Jersey on app engine (1.3) which runs
fine.
One tip that I can give you is not to use classpath scanning as you do
now. Just create an Application and register that in your web xml
(it's easier to debug too). That will give you better start up
performance
Hi Hugo,
Thanks for your answer. I put indeed the right package name in the web.xml,
I also tried with the parent packages but without success. I going to try
your solution and let you know how it goes.
Yann
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The gist of the discussion is:
- Idle Dynamic Instances get traffic in priority over Idle Always On Instances.
- People have shown in the thread that 'Max Idle Instance' knob could
be used to workaround this behavior by preventing too many Dynamic
Instances from spawning.
- This is not really
Most probably, the user id you are using for the app upload does not
have the rights to the application.
In the App Engine Console, go to Administration - Permissions.
Here you can setup the permissions.
Hope this helps.
Sam
On Wed, Jul 27, 2011 at 2:13 AM, Peter Liu tinyee...@gmail.com
By user id I meant - Your Google ID.
On Wed, Jul 27, 2011 at 2:43 PM, Sameer Lodha sams...@gmail.com wrote:
Most probably, the user id you are using for the app upload does not
have the rights to the application.
In the App Engine Console, go to Administration - Permissions.
Here you can
It seems like the service is moving in a direction in which devs will
have to adjust many knobs, rather than have Google handle it
automagically in the background.
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Hi,
I am searching for sample program for DeferredTask,
also document for DeferredTask is not very descriptive.
Any sample program would be really appreciated.
Regards
Suresh Babu G
http://www.accountingguru.in/
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Can you give an example? Because that approach would seem to be unreliable in
a two-writer scenario.
On Jul 26, 2011, at 10:11 PM, Robert Kluin wrote:
Well, I generally put revision numbers on my entities. In my
transctions, before the update, I check that the revision number
currently on
I think Google will provide a reasonably fair pricing model. I heard about
how Groupon takes 50% of the money and pay their business partners with a 90
days delay. That sounds disgustingly greedy to me. And the person who
mentioned that then said that Google has a similar service where they
That does it! I forgot I logged into another account.
The error from the creation process and the error message from the
deployment is confusing.
On Jul 27, 5:14 pm, Sameer Lodha sams...@gmail.com wrote:
By user id I meant - Your Google ID.
On Wed, Jul 27, 2011 at 2:43 PM, Sameer Lodha
This is a bit of an advanced question for the experts with regards to Keys,
IDs, Models and the db.allocate_ids() functionality - those who can answer
it won't need much more explanation, so apologies if it doesn't make much
sense to everyone else (but you may want to file it away in case you
Forgot one extra question about the docs
Key docs say
quote
href='http://code.google.com/appengine/docs/python/datastore/keyclass.html#Key_from_path'
Key.from_path(kind, id_or_name, parent=none, namespace=None, **kwds)
[snip]
For example, the following call creates a key for an entity of
I'm thinking about using the Mail API for a password retrieval service
which probably would exceed the Mail API Calls limit pr. day.
The recipients will be requesting individual emails at different times
during a day. So no bulk mail.
Each password retrieval will require one call to the Mail API.
So today at 8:42 PM CST I'm trying to login into the appengine dashboard and
I'm unable to do so. I loging and all I'm getting is an error saying 302
Moved
The document has moved here. Anyone having this same issue? I have tried
Chrome, IE, Opera. Chrome says too many redirects, IE just
Hi, I am designing the architecture for an enterprise application that
should be designed to be able to handle a big number of users and for big
traffic loads and therefor I have been doing some research on scalability
and n-tier architectures. I found this blog post to have many good points
Hello,
I do this query in Datastore viewer -- select from +
MyClass.class.getName() + WHERE id = KEY('MyClass', 415011)
and it works.
But how do I do this in java?
Thank you
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Hello! I activated appengine with my personal phone on my business/
Google apps account (chris...@bakedon.com).
Because of that, I cannot activate my personal account
(mad...@gmail.com) because it says the number is already in use with
another account.
Is there some way I can activate/verify my
Hi Everyone,
Im using the channel api for
developing a simple multiplayer game. In order to get the user
presence im handling the posts on /_ah/channel/disconnected/ and /_ah/
channel/connected/ and writing it to the database using models in the
google app
Hi, i'm modeling a social network, i use to create a table with the
relations like (userid,friendid)
but in nosql, im planning to simple add a list of id to each user,
like User { ListInteger firends }.
Is this wrong(it works, but and the performance) ?
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I had the same thing happen to me today. After a short while it
worked so maybe it needs to propagate through the system? Did you
receive the email stating it had been created?
I tried several other things so its possible one of those other things
did the trick.
On Jul 26, 1:43 pm, Peter Liu
Hi,
You can look at this post on stackoverflow to have a few more info! The most
known issues are:
- the limit of 5000 elements per list
- the famous index explosion issue (last GAE version tells that index
explosion won't happen but I don't know exactly what it means)
Pascal
On Tue, Jul 26,
You have 1,700,000 calls free per day when you enable billing.
http://code.google.com/appengine/docs/quotas.html#Mail
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Actually the latter knobs I listed were suggestion from the community
but feel free to raise a different voice.
The only knobs Google provide so far are:
- maximum number of idle instances
- minimum pending latency
See http://code.google.com/appengine/docs/adminconsole/performancesettings.html
Ok, thanks! This is not a proble since facebook have this limit too. But for
Followers a have to implement some workarround for this(since followers is a
more big number); Any ideas? Thanks
2011/7/27 Pascal Voitot Dev pascal.voitot@gmail.com
Hi,
You can look at this post on stackoverflow
You could copy the followers (a very light entity) as child entities of your
parent! In this way, followers and parent user will be in the same entity
group and can be retrieved in the same transaction! But you can't retrieve
more than 1000 entities in a single request so you need to manage
Personally I wouldn't include third_party packages in the repository, but
write a README file pointing the releases of what projects i need. It
depends.
My structure:
static/images/...
static/css/...
static/js/...
static/favicon.ico
static/robots.txt
templates/...
conf/... This is a
Hi Peter,
It would be good to see what was the first error you were receiving. But on
regards the second one, the error is not confusing it just means you were
trying to deploy an app from a google account that did not was an
owner/developer of the app ID, therefore that application did not
Oops, and if I need external libraries I usually create a third_party folder
containing all the files.
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Is it possible for a channel (Channel API) to be created in one instance
(frontend) and used in a backend instance? I've tried sharing the channel
id using memcache, but the Backend instance's channel messages just do not
arrive at the client. The client does receive an instance from the
A little correction, you could fetch more than 1000 results (the limit has
been disposed time ago) but it's not recommendable have more than 200/300
results (more or less, for perfomance). I strongly recommend you seeing this
video about ListProperty, fan-outs, etc (Google I/O 2009):
And for followers, you could too shard the lists. You can have several
entities, each with, about 100 results or so (or 1000, or 2000, I prefer 100
for easy of serializing/deserializing). All these would have the user as
ancestor. When listing, take only one entity, deserializing its lists
http://appengine.google.com/waitlist/sms_issues
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Hi Jose.
The gwt compilation is set to OBFUSCATED, Log level: Info
I was seeing the Modules permutation directory above the WAR folder
and they have a average of 1MB each,
and the DEPLOY folder that contains the same folders of the modules
have many files .symbolMap each folder.
So for
Ok, Thanks! I catch it. This solved my problem
I was wondering , this is ok for listing users and etc, but the hard thig
is, when the user post a message i will have to send this message to 200.000
users. How would i select this users to append this feed into their
profiles?
Thanks again.
Hi Rodrigo,
Because this is an issue related to how GWT compiles, I'll recommend you
post your question on the GWT
group: https://groups.google.com/forum/#!forum/google-web-toolkit
If you don't find any help there, just follow up here to see what else I can
do.
Hope this helps!
Best,
Jose
Hugo,
It worked like a charm, thanks a lot for your help about this, you saved my
day (week ?).
Cheers
Yann
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Hello Hariprasath,
I recommend you first try it with the new release 1.5.2. Channel Api wasn't
working for me in 1.5.1 and got fixed with the new release.
Also, tokens expire after 2 hours.
Jhonny Everson
Creator of the 'Taking a Break' iPhone app for Facebook and Twitter
I purchased 3 Always-On instances.
My site is under construction with no traffic.
When I hit my site, GAE fires up a new dynamic instance to service the
request when there are 3 idle instances!
My app starts in 2.0 seconds (using stripes)
But GAE takes 9.4 seconds to reply (why?).
Really annoying.
We have a proxy that needs to send the client's IP address to GAE.
We tried setting a custom HTTP header of X-client-ip, but that seems
to get filtered by GAE.
We could include the info in use User-Agent, but that seems hack-ish.
The doc (http://code.google.com/appengine/docs/java/runtime.html )
So, there's a couple of things going on here. I'll see if I can help explain.
The first is that with 1.5.2 we changed how resident instances work,
so that if a dynamic instance existed, the scheduler would prefer an
idle dynamic instance to an idle resident instance. Further, if a
resident
Yup, I'm here but leaving tomorrow morning and have dinner plans for
tonight, so I won't be able to get together for this trip. As far as
other App Engine staff goes, Andrew from the Go team is here if you
wanted to reach out to him as he's doing a talk called A Tour of Go.
Brian, who is on the
Hi
I assume due to the capilisation you used you are referring to Java examples
(which I can't help with) but in case your
interested in python - have a look at http://blog.notdot.net/tag/deferred
Rgds
T
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And of course http://code.google.com/appengine/articles/deferred.html
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Wow... so many users.. Perhaps asking the Google+ guys.. =)
The only idea I have right now, is use taskqueues (or in the same request,
it depends on latency) to create a «notification», referencing the post, and
the users. Then, list the most recents notifications for the user. Delete
the old
If you always get modify put within a transaction how would it be
unreliable?
Rgds
Tim
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I would put money on a schema change and there are entities in the datastore
with different types for the same property name ;-)
I am pretty sure the Stats only identify candidate kinds to download and not
the actual property name/types during the download.
Tim
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I thought one thing and I said something completely differente -.-' I meant
having a model, with the same key_id/key_name as the post and a list of
users (say 4000/4500). When that super-start with 200.000 followers post
something, run a taskqueue and save several models with the info. Then,
Hi,
I have put up my first Financial portfolio management app on GAE + Python
I would be glad to receive some valuable feedback from the community
regarding its performance / Usability / User Experience.
and how to make it better (performance wise)
The URL is http://biz6001.appspot.com
Hi there,
I've been using GAE for at least 2 years now and host about 5 websites with
it.
(All of which I can usually access via one or two accounts.)
As of about 10 minutes ago when I attempt to logon using the standard:
appengine.google.com/a/website-name
It is now reporting:
The libs directory is probably a good idea. In some cases I do include 3rd
party libs in source control, it makes it dead simple to clone and start dev
right away.
Robert
On Jul 26, 2011 3:42 AM, Vasyl Nakvasiuk vax...@gmail.com wrote:
What about your structure of python project? Where do you
Hi,
This is the whole point in app engine is that all of these things are
already handled. Just write your app using Google's app engine sdk.
Check out the getting started docs, they give an overview of this.
Robert
On Jul 27, 2011 11:14 AM, Robert Åkerblom-Andersson robert@gmail.com
Hi all,
We are building an Application that we hope to run on AppEngine, it
will feature iOS and Android clients as well as a Web, Mobile Web
interfaces. The native mobile applications will use the REST services
to communicate with the server.
The Application is a member based application, and
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