[google-appengine] 500 error

[Anuja Deshmukh]

Hello,
I had created a simple application with a jsp page and a servlet. It gets 
deployed on Google app engine successfully. after that a browser will open. 
but in browser i m able
to see only html page.. when i try for jsp or servlet it gives 500 error 
(server not found try after 30 sec). What it means ?

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[google-appengine] How to Connect through TCP/IP to Google AppEngine Sandbox

[Raghu rao]

Hi,

Pls let us know how to communicate between an embedded 
application(micro-controller based  small firm factor device- firmware 
driven)to Google App Engine app through TCP/IP. is it possible to create 
any listen socket in Google App Engine Sand box Environment. 

Regards,
Raghu Nandan.H

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Re: [google-appengine] How to Connect through TCP/IP to Google AppEngine Sandbox

[Barry Hunter]

In short: no.

Can only contact a appengine instance, via HTTP. Although there are a few
convenience services that will turn other communications into a HTTP
message, so can react on Appengine.

If you truely want to receive non HTTP messages, AppEngine is almost
certainly not the right place.

Could perhaps use Compute Engine instead, which gives you a fairly
tranditional Virtual Machines, these could open listening sockets.

Or could have a hybrid solution, a 'front end' that receives messages as
required, and dispatches HTTP messages to your appengine application (to do
what ever with).



On 24 April 2014 12:23, Raghu rao  wrote:

> Hi,
>
> Pls let us know how to communicate between an embedded
> application(micro-controller based  small firm factor device- firmware
> driven)to Google App Engine app through TCP/IP. is it possible to create
> any listen socket in Google App Engine Sand box Environment.
>
> Regards,
> Raghu Nandan.H
>
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[google-appengine] Static file referenced by handler not found: static/jquery-2.0.3.min.map

[saintthor]

what cause this warning?

i use jquery in page, did't refer any jquery-2.0.3.min.map.

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[google-appengine] Re: App Engine pricing details

[Ayush Verma]

I enabled billing through the old console as well, Its working now. 

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[google-appengine] Re: "Recipients Emailed" count very large

[Rik]

Thanks, James. Mine's looking normal today as well.

On Wednesday, April 23, 2014 11:35:27 PM UTC-7, James Foster wrote:
>
> Mine looks normal.
>
> On Thursday, April 24, 2014 8:15:50 AM UTC+10, Rik wrote:
>>
>> The quota table on my app's dashboard page is indicating that today my 
>> app sent over 10,000 emails using the GAE mail API-- that's more than 
>> 1,000x what it usually sends in a day.
>>
>> Looking at analytics events and logs, I can find no evidence that this 
>> many emails were actually sent, so I think it's just a dashboard bug. 
>> Anyone else experiencing this?
>>
>

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Re: [google-appengine] Google App Engine Task Queue not working with eclipse plugin: org.quartz.SchedulerConfigException: Unable to instantiate class load helper class

[Vinny P]

On Tue, Apr 15, 2014 at 12:06 AM, shivang sarawagi <
visiontechni...@gmail.com> wrote:

> The screenshot for jars attached
>
>

I don't see a screenshot attached to your email, can you resend the
attachment or a link to it?


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] How to Connect through TCP/IP to Google AppEngine Sandbox

[Vinny P]

On Thu, Apr 24, 2014 at 6:23 AM, Raghu rao  wrote:

> Pls let us know how to communicate between an embedded
> application(micro-controller based  small firm factor device- firmware
> driven)to Google App Engine app through TCP/IP. is it possible to create
> any listen socket in Google App Engine Sand box Environment.
>


As Barry said, there's no way to open up listening sockets on App Engine.

But some microcontrollers have enough space to host a tiny web server (see
this SO post for
examples);
what you can do is run a web server on your device, then have App Engine
periodically poll the server for data.


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] 500 error

[Vinny P]

On Thu, Apr 24, 2014 at 2:40 AM, Anuja Deshmukh 
 wrote:

> I had created a simple application with a jsp page and a servlet. It gets
> deployed on Google app engine successfully. after that a browser will open.
> but in browser i m able
> to see only html page.. when i try for jsp or servlet it gives 500 error
> (server not found try after 30 sec). What it means ?
>



A 500 error is not a "not found" error (that's 404). HTTP 500 is a generic
Internal Server Error explanation. There's too little information to
explain why the error is occurring; can you look into App Engine logging
and see if any errors pop up there?


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] change verification settings

[Vinny P]

On Thu, Apr 10, 2014 at 10:16 AM, Rachel  wrote:

> I am a new developer and the application I created requires a  text
> verification step  for every login using the admin google account and
> password. How do I change this setting? IS this an app engine issue or do I
> adjust these configurations within my application settings?
>


Usually this only happens once, when you first create a new application ID.
Can you try creating a new application and see if the problem repeats
itself for that ID? Have you used your current phone number to verify any
other accounts/applications?


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] javax.persistence.PersistenceException: No persistence providers available for "transactions-optional" after trying the following discovered implementations: org.datanucleus.api

[Vinny P]

On Wed, Apr 9, 2014 at 6:11 AM, Aadil Farooqui 
 wrote:

> I am new using Google App Engine, I am following the tutorial
> http://www.vogella.com/tutorials/GoogleAppEngineJava/article.html to
> learn
>


That tutorial is quite old, and I don't believe the author supports it
anymore.

I suggest using the official Java tutorial, available at
https://developers.google.com/appengine/docs/java/gettingstarted/introduction.
>From there you can investigate further sample applications at
https://github.com/GoogleCloudPlatform/


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] Re: Google CCS Server implementation for GCM (Google Cloud Messaging)

[Vinny P]

On Tue, Apr 15, 2014 at 1:22 AM, Devwrat Lad  wrote:

> Still Google app Engine dont support java smack library now ?
>


Smack uses certain classes that aren't included on the App Engine JRE
whitelist, so no you can't run Smack at the moment. If you do need to run
Smack I would suggest looking into Managed VMs (
https://developers.google.com/cloud/managed-vms ) where you have more
freedom to run applications, but still keeping access to App Engine
resources.


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] Email feedback loop notifications when emails are marked as spam

[Vinny P]

On Wed, Apr 23, 2014 at 2:11 AM, Waleed Abdulla  wrote:

> The top email APIs (like Sendgrid and Amazon SES) notify applications when
> an email bounces or is marked as spam. They know when an email is marked as
> spam through email feedback loop agreements with major email client
> providers.
>
> App Engine notifies 
> applications 
> when
> an email bounces back. But is there a way to know if an email was marked as
> spam? Do those bounce notifications cover spam reports as well? The
> documentation does not include a lot of details about the type of
> notifications we get (soft bounces, hard bounces, spam reports, ...etc.).
>
> Can anyone shed some light?
>


Some (a small minority of) mail servers will bounce back emails regarded as
spam; most will simply silently delete spam emails or route them into the
user's spam folder. So no, the bounce mechanism doesn't report spam details.

If you're concerned about your emails being marked as spam, consider
utilizing the SendGrid-Google App Engine integration and sending your
emails from SendGrid servers. You'll have better access to analytics; see
an explanation here:
https://developers.google.com/appengine/docs/python/mail/sendgrid



-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com

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Re: [google-appengine] Static file referenced by handler not found: static/jquery-2.0.3.min.map

[Vinny P]

Does your log look like this: http://imgur.com/uePke5W ?

If so, then something in your web pages is requesting that file, and App
Engine can't find it within your application. Specifically, a
*min.map*file is a sourcemap: someone is looking at your web pages
with Chrome's
developer tools or similar. You can find the map file and place it in your
application, see the details of how to do this
here.
Note this: Normal users will not need the sourcemap data, it's only needed
for debugging JS code via development tools.


-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com




On Thu, Apr 24, 2014 at 8:48 AM, saintthor  wrote:

> what cause this warning?
>
> i use jquery in page, did't refer any jquery-2.0.3.min.map.
>

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[google-appengine] Re: Request to not use Maven in GAE

[Gilberto Torrezan Filho]

I'd like to express my opinion about Maven as well: please continue 
supporting it to make the development and deployment as much IDE agnostic 
as possible.

... and make the GPE work seamlessly with Maven projects - today we have 
configuration issues and workarounds to make everything work together.

On Monday, April 21, 2014 3:51:16 PM UTC-3, Mike D wrote:
>
> It seems like Maven is working its way into GAE.  I would like to make my 
> preference known to the GAE team.  I prefer to not use Maven.  I find it 
> better to expand upon the GPE and simply provide documentation for how to 
> set up a configuration.
>

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Re: [google-appengine] Google Cloud Endpoint initialization

[Gilberto Torrezan Filho]

Let me see if I understood correctly: are you saying a instance of my 
entire VM are launched every time a request is handled by the GCE engine? 
All my singleton classes (DAOs, default values, some utilities) are 
reinstantiated each request?

I don't save sensitive state in memory (I use Memcache/Datastore for that), 
but some objects cloud be reused among requests, the way it works on 
regular GAE frontend requests.

On Wednesday, April 23, 2014 4:13:52 AM UTC-3, Vinny P wrote:
>
> On Wed, Apr 16, 2014 at 8:37 PM, Mike D 
> > wrote:
>
>> I have some initialization stuff that I'd like to do before GCE can be 
>> used.  How would I do this?  I tried creating a ServletContextListener and 
>> then calling a static method on my GCE but that doesn't work.  In debugging 
>> I can see that the GCEs static variables are not set when a method is 
>> invoked.
>>
>
>
> Endpoints applications are slightly different than normal web 
> applications; as you remarked in your post, static variables don't retain 
> their values. 
>
> If you need to do initialization, you should handle init separately 
> (perhaps as part of a cron job) and save the results into the 
> datastore/cloud storage/cloud SQL.
>   
>  
> -
> -Vinny P
> Technology & Media Advisor
> Chicago, IL
>
> App Engine Code Samples: http://www.learntogoogleit.com
>  
>

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Re: [google-appengine] Google Cloud Endpoint initialization

[Vinny P]

No. Instances don't get reloaded per request with Endpoints. That would be
a terrible waste of resources.

Sorry, I probably should have clarified/explained more in my previous
email, but I was in a bit of a rush when I wrote that. Endpoints doesn't
support static methods ( see this article, scroll down to the API Methods
header)
unless they're marked as private. When OP tried to run his static
method,
it may not have run or failed off.

In addition, I cheated a little bit on the answer and noted that the OP
cross-posted his question to
SO,
where he said that he needed data tables precomputed during init. That's
something that really needs to be moved to a regular cron or similar.

@OP/Mike: Can you post a simple test case?




-
-Vinny P
Technology & Media Advisor
Chicago, IL

App Engine Code Samples: http://www.learntogoogleit.com




On Thu, Apr 24, 2014 at 12:50 PM, Gilberto Torrezan Filho <
gilberto.torre...@gmail.com> wrote:

> Let me see if I understood correctly: are you saying a instance of my
> entire VM are launched every time a request is handled by the GCE engine?
> All my singleton classes (DAOs, default values, some utilities) are
> reinstantiated each request?
>
> I don't save sensitive state in memory (I use Memcache/Datastore for
> that), but some objects cloud be reused among requests, the way it works on
> regular GAE frontend requests.
>
> On Wednesday, April 23, 2014 4:13:52 AM UTC-3, Vinny P wrote:
>>
>> On Wed, Apr 16, 2014 at 8:37 PM, Mike D  wrote:
>>
>> I have some initialization stuff that I'd like to do before GCE can be
>>> used.  How would I do this?  I tried creating a ServletContextListener and
>>> then calling a static method on my GCE but that doesn't work.  In debugging
>>> I can see that the GCEs static variables are not set when a method is
>>> invoked.
>>>
>>
>>
>> Endpoints applications are slightly different than normal web
>> applications; as you remarked in your post, static variables don't retain
>> their values.
>>
>> If you need to do initialization, you should handle init separately
>> (perhaps as part of a cron job) and save the results into the
>> datastore/cloud storage/cloud SQL.
>>
>>
>> -
>> -Vinny P
>> Technology & Media Advisor
>> Chicago, IL
>>
>> App Engine Code Samples: http://www.learntogoogleit.com
>>
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[google-appengine] Delete (clean all) datastore after High Replication Datastore Migration

[poke]

How to delete (clean all) datastore after High Replication Datastore 
Migration ?
Datastore admin is disabled .

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