date:20100219

datanucleus,

I have created SMSUser class like this



@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class SMSUser
{

  @PrimaryKey
  @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
  public Key UserId;

  @Persistent
  public User sUser;

  @Persistent
  public String ContractPerson;


  @Persistent
  public String Company;

  @Persistent
  public String Address;

.


What i have changed is, instead of get/set method, i have used public
members. Does it make any difference???


On Feb 19, 1:49 pm, datanucleus andy_jeffer...@yahoo.com wrote:
  PS: I have added pm.close(); after pm.makePersistent(u);
  still it does not update the record...

 Why should it ? You have gone and updated fields directly so how does
 the object *know* that it has been updated ? Either mark the class
 updating the fields as @PersistenceAware, or update via setters

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[appengine-java] Re: Editing records in datastore (using JAVA)

Dear Alexander Arendar ,

I have tried it. My listing deleting and adding works fine... Just
getting stuck in editing part..

On Feb 19, 1:53 pm, Alexander Arendar alexander.aren...@gmail.com
wrote:
Hi Manjoor,

you should also call after all these pm.close() and you'll see the result :)
JDO persist the object really at the moment when you are closing the
persistence manager.

On Fri, Feb 19, 2010 at 7:44 AM, Manjoor manjoora...@gmail.com wrote:
Thanks for the reply but it does not work. Have a look at this.

I have checked it in debugger, It successfuly fetch desired record.
but after changing it does not saved. No error :(

SMSUser u = pm.getObjectById(SMSUser.class,tu.UserId);
u.ContractPerson =
req.getParameter(ContractPerson);
u.Company = req.getParameter(Company);
u.Address = req.getParameter(Address);
u.Phone = req.getParameter(Phone);
pm.makePersistent(u);

On Feb 19, 12:15 am, Jake jbrooko...@cast.org wrote:
The Google App Engine instructions focus on JDO for the datastore
implementation. JDO doesn't have the traditional update function.
You either modify it and close the persistence manager that returned
the object (it knows it changed and updates accordingly) or you just
persist the object again with the same ID to overwrite it.

See:
http://code.google.com/appengine/docs/java/datastore/creatinggettinga...

I believe JPA has an update feature, but if you're new to it I suggest
JDO since it has better documentation in GAE.

Jake

On Feb 18, 10:55 am, Manjoor manjoora...@gmail.com wrote:

I have been searching for sample java program to add,editand delete
records. I found many example showing how to add and delete records
but not a single about editing. Do anyone have a sample source link to
show how toedita record ???- Hide quoted text -

- Show quoted text -

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Re: [appengine-java] Re: web.xml Question in GAE

2010-02-19 Thread nicolas melendez

Hi now it works, but there was a strange behaviour here (maybe a bug)  but i
can't reproduce it anymore.
The problem was that /* url-pattern didn't work, but /mp3Rapidshare/*
worked.

Here is how i Fix it:

the original web.xml was:

?xml version=1.0 encoding=utf-8?
web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xmlns=http://java.sun.com/xml/ns/javaee;
xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5
filter
filter-name*WicketFilter*/filter-name
filter-classorg.apache.wicket.protocol.http.*WicketFilter*
/filter-class
init-param
param-nameapplicationClassName/param-name
param-valuenm.mp3rapidshare.WicketApplication/param-value
/init-param
/filter

filter-mapping
filter-name*WicketFilter*/filter-name
url-pattern/mp3Rapidshare/*/url-pattern
/filter-mapping

filter-mapping
filter-name*WicketFilter*/filter-name
url-pattern/*/url-pattern
/filter-mapping
/web-app

here the filter-name and the filter-class have the same name at the end.
So i changed to filter-name *WicketFilter1* /filter-name and it worked!

the new web.xml:
?xml version=1.0 encoding=utf-8?
web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xmlns=http://java.sun.com/xml/ns/javaee;
xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5
filter
filter-name*WicketFilter1*/filter-name
filter-classorg.apache.wicket.protocol.http.*WicketFilter*
/filter-class
init-param
param-nameapplicationClassName/param-name
param-valuenm.mp3rapidshare.WicketApplication/param-value
/init-param
/filter

filter-mapping
filter-name*WicketFilter1*/filter-name
url-pattern/mp3Rapidshare/*/url-pattern
/filter-mapping

filter-mapping
filter-name*WicketFilter1*/filter-name
url-pattern/*/url-pattern
/filter-mapping
/web-app

And then i tried to reproduce a possible Bug, Replacing the web.xml with the
last from muy SVN:
The same Web.xml that didn't work, now works: (Strange!!)

?xml version=1.0 encoding=utf-8?
web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xmlns=http://java.sun.com/xml/ns/javaee;
xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5
filter
filter-name*WicketFilter*/filter-name
filter-classorg.apache.wicket.protocol.http.*WicketFilter*
/filter-class
init-param
param-nameapplicationClassName/param-name
param-valuenm.mp3rapidshare.WicketApplication/param-value
/init-param
/filter

filter-mapping
filter-nameWicketFilter/filter-name
url-pattern/mp3Rapidshare/*/url-pattern
/filter-mapping

filter-mapping
filter-name*WicketFilter*/filter-name
url-pattern/*/url-pattern
/filter-mapping
/web-app

But, now it works, so i can continue developing.
So Thanks a lot
NM









On Fri, Feb 19, 2010 at 8:18 AM, Ian Marshall ianmarshall...@gmail.comwrote:

 Hello there,

 A fellow Wicket user! I use the following filter mappings in my
 web.xml, which work for me; they might work for you too...

  filter-mapping
filter-nameWicketApplication/filter-name
url-pattern/wicket/*/url-pattern
  /filter-mapping

  !--  This must be after the similar block for /wicket/*  --
  filter-mapping
filter-nameWicketApplication/filter-name
 url-pattern/*/url-pattern
  /filter-mapping


 Do let us know how you get on.

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Re: [appengine-java] Re: web.xml Question in GAE

2010-02-19 Thread nicolas melendez

Ian Marshall
Thanks for your reply!
NM


On Fri, Feb 19, 2010 at 9:52 AM, nicolas melendez nfmelen...@gmail.comwrote:

 Hi now it works, but there was a strange behaviour here (maybe a bug)  but
 i can't reproduce it anymore.
 The problem was that /* url-pattern didn't work, but /mp3Rapidshare/*
 worked.

 Here is how i Fix it:

 the original web.xml was:


 ?xml version=1.0 encoding=utf-8?
 web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
 xmlns=http://java.sun.com/xml/ns/javaee;
 xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
 xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5
 filter
 filter-name*WicketFilter*/filter-name
 filter-classorg.apache.wicket.protocol.http.*WicketFilter*
 /filter-class
 init-param
 param-nameapplicationClassName/param-name
 param-valuenm.mp3rapidshare.WicketApplication/param-value
 /init-param
 /filter

 filter-mapping
 filter-name*WicketFilter*/filter-name
 url-pattern/mp3Rapidshare/*/url-pattern
 /filter-mapping

 filter-mapping
 filter-name*WicketFilter*/filter-name

 url-pattern/*/url-pattern
 /filter-mapping
 /web-app

 here the filter-name and the filter-class have the same name at the
 end.
 So i changed to filter-name *WicketFilter1* /filter-name and it
 worked!

 the new web.xml:

 ?xml version=1.0 encoding=utf-8?
 web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
 xmlns=http://java.sun.com/xml/ns/javaee;
 xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
 xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5
 filter
 filter-name*WicketFilter1*/filter-name

 filter-classorg.apache.wicket.protocol.http.*WicketFilter*
 /filter-class
 init-param
 param-nameapplicationClassName/param-name
 param-valuenm.mp3rapidshare.WicketApplication/param-value
 /init-param
 /filter

 filter-mapping
 filter-name*WicketFilter1*/filter-name
 url-pattern/mp3Rapidshare/*/url-pattern
 /filter-mapping

 filter-mapping
 filter-name*WicketFilter1*/filter-name

 url-pattern/*/url-pattern
 /filter-mapping
 /web-app

 And then i tried to reproduce a possible Bug, Replacing the web.xml with
 the last from muy SVN:
 The same Web.xml that didn't work, now works: (Strange!!)


 ?xml version=1.0 encoding=utf-8?
 web-app xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
 xmlns=http://java.sun.com/xml/ns/javaee;
 xmlns:web=http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd;
 xsi:schemaLocation=http://java.sun.com/xml/ns/javaee
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd; version=2.5
 filter
 filter-name*WicketFilter*/filter-name
 filter-classorg.apache.wicket.protocol.http.*WicketFilter*
 /filter-class
 init-param
 param-nameapplicationClassName/param-name
 param-valuenm.mp3rapidshare.WicketApplication/param-value
 /init-param
 /filter

 filter-mapping
 filter-nameWicketFilter/filter-name
 url-pattern/mp3Rapidshare/*/url-pattern
 /filter-mapping

 filter-mapping
 filter-name*WicketFilter*/filter-name

 url-pattern/*/url-pattern
 /filter-mapping
 /web-app

 But, now it works, so i can continue developing.
 So Thanks a lot
 NM










 On Fri, Feb 19, 2010 at 8:18 AM, Ian Marshall ianmarshall...@gmail.comwrote:

 Hello there,

 A fellow Wicket user! I use the following filter mappings in my
 web.xml, which work for me; they might work for you too...

  filter-mapping
filter-nameWicketApplication/filter-name
url-pattern/wicket/*/url-pattern
  /filter-mapping

  !--  This must be after the similar block for /wicket/*  --
  filter-mapping
filter-nameWicketApplication/filter-name
 url-pattern/*/url-pattern
  /filter-mapping


 Do let us know how you get on.

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[appengine-java] Re: Editing records in datastore (using JAVA)

datanucleus,

Please can you show me how a setter tell JDO that it is called and JDO
need to update it???
I am sorry but i am new to java. (Just for app-engine)



On Feb 19, 1:49 pm, datanucleus andy_jeffer...@yahoo.com wrote:
  PS: I have added pm.close(); after pm.makePersistent(u);
  still it does not update the record...

 Why should it ? You have gone and updated fields directly so how does
 the object *know* that it has been updated ? Either mark the class
 updating the fields as @PersistenceAware, or update via setters

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[appengine-java] Map Reduce

2010-02-19 Thread John Patterson

Hi, I am curious about what will be possible with the planned map  
reduce functionality.  Could this be used as the basis of a free text  
search or facetted break down of search results?


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[appengine-java] Re: Editing records in datastore (using JAVA)

Dear Sushama Khadilkar,

I am trying my hand in JDO..I have not thought to using JPA yet


On Feb 19, 12:10 pm, Sushama Khadilkar sush.khadil...@gmail.com
wrote:
 If you want to update the record using EntityManager , then just use
 em.merge(Object).
 This the link to the 
 Example::http://www.javabeat.net/articles/81-jpa-in-netbeans-61-4.html

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[appengine-java] Re: web.xml Question in GAE

2010-02-19 Thread Ian Marshall

You're welcome. It's amazing how a prod from someone else can get the
coding moving again, even if the prod was not completely on target!

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Re: [appengine-java] Re: vs-accounting.appspot.com - datastore viewer error

2010-02-19 Thread aswath satrasala

Hello Toby
I am still not able to use the 'Datastore Viewer'.
It simply displays message
Server Error

A server error has occurred.

I cleaned up my entities that are using PhoneNumber, Email etc.

-Aswath

On Sat, Feb 6, 2010 at 1:06 AM, Toby Reyelts to...@google.com wrote:

You have an empty property of type e-mail, and that makes the datastore
viewer unhappy. You need to either use a different type that can be
non-empty (like String), or have non-empty e-mails.

On Thu, Feb 4, 2010 at 10:25 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

My application is running fine.

I am still getting the datastore viewer error.What can we do in this
scenario. How can we get support?

-Aswath

On Mon, Feb 1, 2010 at 12:36 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello GAE team,
I am still not able to use the DataStore viewer for my app-id
'vs-accounting'

Thanks
-Aswath

On Thu, Jan 28, 2010 at 11:08 AM, aswath satrasala
aswath.satras...@gmail.com wrote:

Local file:
datastore-indexes

!-- Used 2 times in query history --
datastore-index kind=Tenant ancestor=true source=auto
property name=tenants_INTEGER_IDX direction=asc/
/datastore-index

!-- Used 1 time in query history --
datastore-index kind=Party ancestor=true source=auto
property name=partys_INTEGER_IDX direction=asc/
/datastore-index

!-- Used 1 time in query history --
datastore-index kind=SecurityGroup ancestor=true source=auto

property name=secGrpList_INTEGER_IDX direction=asc/
/datastore-index

datastore-index kind=PartyRole ancestor=true source=auto
property name=partyRoles_INTEGER_IDX direction=asc/
/datastore-index

/datastore-indexes

Production:
Party partys_INTEGER_IDX ▲
Includes ancestors
*Serving*
PartyRole partyRoles_INTEGER_IDX ▲
Includes ancestors
*Serving*
SecurityGroup secGrpList_INTEGER_IDX ▲
Includes ancestors
*Serving*
Tenant tenants_INTEGER_IDX ▲
Includes ancestors

12hrs ago , the secGrpList_INTEGER_IDX was not shown on the production
admin console. Now, it is showing up.

The datastore viewer is still responding back error page.

-Aswath

On Thu, Jan 28, 2010 at 2:48 AM, Ikai L (Google) ika...@google.comwrote:

What does you local indexes file look like? Can you post the indexes
listed in your production admin console?

On Tue, Jan 26, 2010 at 11:24 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello GAE team,
Further observations made while testing the app. I am not able to
write entities to the datastore. Upon examining the logs, I found the
following error.

com.veersoft.action.CreateTenantAction doCreate:
com.google.appengine.api.datastore.DatastoreNeedIndexException:

no matching index found..
datastore-index kind=SecurityGroup ancestor=true source=manual
property name=secGrpList_INTEGER_IDX direction=asc/

/datastore-index

The application is fine on the local develpment server.

-Aswath

On Tue, Jan 26, 2010 at 8:51 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello,
My app-id is vs-accounting.

I login into appengine.google.com. I choose the above application.
Then I click on the datastore viewer.
I get the error

Server Error

A server error has occurred.

Return to Applications screen » https://appengine.google.com/

-Aswath

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Re: [appengine-java] update to sdk1.3.1

2010-02-19 Thread Miguel Méndez

No, it won't auto-update today.  The following link explains how to switch
the SDK that a project is using:
http://code.google.com/eclipse/docs/using_sdks.html.

On Thu, Feb 18, 2010 at 11:46 PM, AJ Chen ajc...@web2express.org wrote:

 I ran an update from eclipse. The sdk1.3.1 is installed in the
 eclipse/plugin dir, but the sdk in my existing GAE project still points to
 the old version 1.3.0.  Should the update automatically update the existing
 project? if not, how to change it manually?
 thanks,
 -aj

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[appengine-java] A List property - Can we filter 'null' and '[null]' values separately ?

2010-02-19 Thread vbart

Hello,

I'm using low-level datastore API and its Query class to filter
entities.
I put two entities to datastore: the first has set a property 'list'
to null and the second has the same property set to [null] (a list
containing one null value).

The following query will find both of them - that's ok:
  new Query(MyEntity).addFilter( list, Query.FilterOperator.EQUAL,
null)

But is there a way (using GAE API only) to filter only the first
entity or only the second one ?
The full code is on my blog: 
http://vaclavb.blogspot.com/2010/02/lists-and-nulls-in-google-app-engine.html

Vaclav

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Re: [appengine-java] Re: vs-accounting.appspot.com - datastore viewer error

2010-02-19 Thread Toby Reyelts

You still have phone entities that are empty.

On Fri, Feb 19, 2010 at 8:40 AM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello Toby
I am still not able to use the 'Datastore Viewer'.
It simply displays message

Server Error

A server error has occurred.

I cleaned up my entities that are using PhoneNumber, Email etc.

-Aswath

On Sat, Feb 6, 2010 at 1:06 AM, Toby Reyelts to...@google.com wrote:

You have an empty property of type e-mail, and that makes the datastore
viewer unhappy. You need to either use a different type that can be
non-empty (like String), or have non-empty e-mails.

On Thu, Feb 4, 2010 at 10:25 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

My application is running fine.

I am still getting the datastore viewer error.What can we do in this
scenario. How can we get support?

-Aswath

On Mon, Feb 1, 2010 at 12:36 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello GAE team,
I am still not able to use the DataStore viewer for my app-id
'vs-accounting'

Thanks
-Aswath

On Thu, Jan 28, 2010 at 11:08 AM, aswath satrasala
aswath.satras...@gmail.com wrote:

Local file:
datastore-indexes

!-- Used 2 times in query history --
datastore-index kind=Tenant ancestor=true source=auto
property name=tenants_INTEGER_IDX direction=asc/
/datastore-index

!-- Used 1 time in query history --
datastore-index kind=Party ancestor=true source=auto
property name=partys_INTEGER_IDX direction=asc/
/datastore-index

!-- Used 1 time in query history --
datastore-index kind=SecurityGroup ancestor=true
source=auto

property name=secGrpList_INTEGER_IDX direction=asc/
/datastore-index

datastore-index kind=PartyRole ancestor=true source=auto
property name=partyRoles_INTEGER_IDX direction=asc/
/datastore-index

/datastore-indexes

12hrs ago , the secGrpList_INTEGER_IDX was not shown on the
production admin console. Now, it is showing up.

The datastore viewer is still responding back error page.

-Aswath

On Thu, Jan 28, 2010 at 2:48 AM, Ikai L (Google) ika...@google.comwrote:

What does you local indexes file look like? Can you post the indexes
listed in your production admin console?

On Tue, Jan 26, 2010 at 11:24 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello GAE team,
Further observations made while testing the app. I am not able to
write entities to the datastore. Upon examining the logs, I found the
following error.

com.veersoft.action.CreateTenantAction doCreate:
com.google.appengine.api.datastore.DatastoreNeedIndexException:

no matching index found..
datastore-index kind=SecurityGroup ancestor=true source=manual
property name=secGrpList_INTEGER_IDX direction=asc/

/datastore-index

The application is fine on the local develpment server.

-Aswath

On Tue, Jan 26, 2010 at 8:51 PM, aswath satrasala
aswath.satras...@gmail.com wrote:

Hello,
My app-id is vs-accounting.

I login into appengine.google.com. I choose the above application.
Then I click on the datastore viewer.
I get the error

Server Error

A server error has occurred.

Return to Applications screen » https://appengine.google.com/

-Aswath

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[appengine-java] Re: JavaMail doesn't work

2010-02-19 Thread A1programmer

JavaMail works fine once the app is deployed to App Engine.

http://code.google.com/appengine/docs/java/mail/usingjavamail.html


On Feb 18, 10:08 am, Raghu visuma...@gmail.com wrote:
 Hi All,

 I struck at JavaMail application. I tested remotely and locally also.
 It's not working. please help me. Please share a simple servlet if
 possible

 thanks

 raghu

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Re: [appengine-java] Re: web.xml Question in GAE

2010-02-19 Thread Don Schwarz

I think the problem is that you had an index.html file in your web
application, and static files always override filters and servlets in App
Engine. See the second paragraph of:

http://code.google.com/appengine/docs/java/gettingstarted/staticfiles.html

You can either remove the index.html (sounds like that's what you did,
possibly without being aware of it), or you can specify your own
welcome-file-list that doesn't include index.html.

On Fri, Feb 19, 2010 at 7:30 AM, Ian Marshall ianmarshall...@gmail.comwrote:

You're welcome. It's amazing how a prod from someone else can get the
coding moving again, even if the prod was not completely on target!

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Re: [appengine-java] A List property - Can we filter 'null' and '[null]' values separately ?

2010-02-19 Thread Scott Hernandez

To summarize the issue, you cannot search for a null (list) if you
store a null value in any instance of that (list) property. This is
due to the way indexing is done for lists/arrays in the datastore.

The short answer is no. You will have to store another property as a
marker that you have a null list/array rather than a list/array that
contains a null entry.

In Objectify (http://code.google.com/p/objectify-appengine) we have a
feature that doesn't store null entries for @Embedded
collection/arrays; instead we store another property which keeps track
of which entries in that collection are null. Then you can search for
any collection that has null entries, but at the moment you can't
search for a null/empty collection (since we don't store them, or any
marker property indicating the difference between null/empty for that
collection). We have plans to add support for differentiating between
null/empty collections in queries, and it will be pretty easy to use,
but we are waiting on more people needing that feature.

Here are some discussions relating directly to this issue on the
Objectify group:
http://groups.google.com/group/objectify-appengine/browse_thread/thread/c05efb6943387eb4

On Fri, Feb 19, 2010 at 7:36 AM, vbart vaclav.barta...@spolecne.cz wrote:
 Hello,

 I'm using low-level datastore API and its Query class to filter
 entities.
 I put two entities to datastore: the first has set a property 'list'
 to null and the second has the same property set to [null] (a list
 containing one null value).

 The following query will find both of them - that's ok:
  new Query(MyEntity).addFilter( list, Query.FilterOperator.EQUAL,
 null)

 But is there a way (using GAE API only) to filter only the first
 entity or only the second one ?
 The full code is on my blog: 
 http://vaclavb.blogspot.com/2010/02/lists-and-nulls-in-google-app-engine.html

 Vaclav

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Re: [appengine-java] Editing records in datastore (using JAVA)

2010-02-19 Thread Scott Hernandez

If you would like a very simple interface to the app engine datastore
(not JPA/JDO) then Objectify might be for you. It doesn't sound like
you need to use JDO/JPA. Here is an example of exactly what you want:
http://code.google.com/p/objectify-appengine/wiki/IntroductionToObjectify#Basic_Operations:_Get,_Put,_Delete

Notice that the Car is created, stored, then (can be) retrieved,
changed, and stored again:

Car porche = new Car(2FAST, red);
ofy.put(porche);

... you can use the same instance, or get it at another time; it will
be the same object

// Change some data and write it
porche.color = blue;
ofy.put(porche);

The simplicity is that you only store (put) and retrieve (get) objects
from the datastore. There is no disconnected state, or any issues
therein (no merging or reconnecting existing objects to some manager).
It is simple, easy, and works with regular (POJO) objects. There isn't
any special gotchas or explicit order to storing parent or children
(just that you do :) . it works just as you should expect a simple
persistence framework to work.

On Thu, Feb 18, 2010 at 7:55 AM, Manjoor manjoora...@gmail.com wrote:
I have been searching for sample java program to add, edit and delete
records. I found many example showing how to add and delete records
but not a single about editing. Do anyone have a sample source link to
show how to edit a record ???

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[appengine-java] cron job or scheduled tasks

2010-02-19 Thread nag

i have a leave database having
casual leaves 1.5

i need it will automatically add 1.5 at every month 15Th
ex
   Date  casual Leaves
on jan 14   0
  jan 15  1.5
  jan 30  1.5
feb 141.5
Feb 15   3.0


can any one help how to achieve this...
Please dont refer code.google.com/appengine/java
i cant understand how to achieve this from there

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[appengine-java] What CPU times should I expect in the logs?

2010-02-19 Thread Blake

I'm relatively new to GAE.  My queries so far have for single entities
with owned relationships, queried by key, which has been great - no
orange or red screaming in my logs.  More recently, I've been working
on a simple page that does this:

1. get a list of 10 of the user's Following entities - each contain
a key to an object the user is following, and some extra metadata
about the relationship

2. get each of the ObjectBeingFollowed entities by key in the
Following entity

Easy enough to get working, but the logs are screaming at me with CPU
times up around 0.5-1.0 seconds.  Is this just what to expect?  Do you
guys have pages that always return red or orange log messages?

Thanks!

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[appengine-java] Using GAE Platform Outside of Google

2010-02-19 Thread Greg Marine

Hello All!

I am evaluating GAE/Java for some of my projects and came across a
scenario I can't seem to find any information on. I am porting an
application I would normally have available through GAE, but have a
client who wants to keep everything housed onsite. I'm assuming the
development server would not be appropriate for such an
implementation. So, is there a version of GAE available to install on
a server in such an environment or can the GAE classes be used in
another servlet container such as Tomcat? This would also be the case
if someone were to want to use the software offline using localhost. I
understand this isn't exactly an ideal scenario. However, I thought I
would at least ask.

Thank you,
Greg

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[appengine-java] Re: Google maps geocoder responds with 620 error since last nights server maintenance

2010-02-19 Thread Anders

Same problem here. No problems for 4 months with unchanged mapping
code and as of the last day mostly 620 results.

I am running on the python appengine but as previously said this is
probably an issue with the geocoder IP limit.

On 19 Feb, 07:21, Ivan Pardo trux...@gmail.com wrote:
 ive entered this is a bug on the maps api bug tracker.  ive tried on 2
 google apps accounts and ive asked others to confirm.  it looks like
 geocoding is impossible from google apps servers.

 On Feb 18, 6:25 pm, Ivan Pardo trux...@gmail.com wrote:

  At least now I can be certain that it's not a problem with my code.  I
  can only hope that Google can fix this problem ASAP, as my application
  is absolutely useless without a working geocoder.

  On Feb 18, 5:44 pm, Jeff Schnitzer j...@infohazard.org wrote:

   I'm also seeing 620 errors for most (possibly all) of my reverse
   geocode requests.

   Jeff

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Re: [appengine-java] What CPU times should I expect in the logs?

2010-02-19 Thread John Patterson

You could try to batch the get of your ObjectBeingFollowed entities
so you only do two gets. Is most of your cpu time api_cpu?

On 19 Feb 2010, at 12:29, Blake wrote:

I'm relatively new to GAE. My queries so far have for single entities
with owned relationships, queried by key, which has been great - no
orange or red screaming in my logs. More recently, I've been working
on a simple page that does this:

1. get a list of 10 of the user's Following entities - each contain
a key to an object the user is following, and some extra metadata
about the relationship

2. get each of the ObjectBeingFollowed entities by key in the
Following entity

Easy enough to get working, but the logs are screaming at me with CPU
times up around 0.5-1.0 seconds. Is this just what to expect? Do you
guys have pages that always return red or orange log messages?

Thanks!

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Re: [appengine-java] Parsing files uses too much cpu loading

2010-02-19 Thread John Patterson

I see about 10 times that cpu usage when loading data so that is not  
unusual.  I imagine most of your cpu is api_cpu?  Index creation seems  
to be the main culprit so turning off indexing on properties you don't  
need to query on is a good start.


On 19 Feb 2010, at 04:31, novarse wrote:


Hello,
I'm trying to get data from csv files into my datastore tables. My app
is showing cpu loadings of
30356ms 20023cpu_ms 11480api_cpu_ms from the dash board and I was
wondering if someone could see how I could improve this situation. I'm
pretty new to Java.


sample line from file:
-470,16/12/2008 0:00:00,125

this parses the file:
private void processEvents(String fileName) {
try {
previousLineNumber = 0;
i = 1;
file = new File(fileName);
CSVParser shredder = new CSVParser(new 
FileInputStream(file));
while ((t = shredder.nextValue()) != null) {
if (previousLineNumber != 
shredder.getLastLineNumber()) {
if (previousLineNumber != 0) { // save 
event
saveData(jdoEvent);
}
previousLineNumber = 
shredder.getLastLineNumber();
i = 1;
} else
i++;
switch (i) {
case 1:

jdoEvent.setPKeyEventID(Long.parseLong(t));
break;
case 2:
try {
Date d = processDate(t);
jdoEvent.setDate(d);
} catch (ParseException e) {

System.out.println(e.getMessage());
}
break;
case 3:

jdoEvent.setFKeyRaceDescription(Long.parseLong(t));
break;
}
}

if (previousLineNumber != 0) {
saveData(jdoEvent);
}
} catch (Exception e) {
System.err.println(e.getMessage());
}
}


this saves the object:
private J void saveData(J jdoObject) {
PersistenceManager pm = PMF.get().getPersistenceManager();
try {
pm.makePersistent(jdoObject);
} finally {
pm.close();
}
}


this is my data object:

package com.myproj.client;

import java.util.Date;

import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.IdentityType;
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;

import com.google.gwt.user.client.rpc.IsSerializable;

@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class JdoEvent implements IsSerializable {

@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long pKeyEventID;

@Persistent
private Date date;

@Persistent
private Long fKeyRaceDescription;

public JdoEvent() {

}

public void setDate(Date date) {
this.date = date;
}

public Date getDate() {
return date;
}

public void setPKeyEventID(Long pKeyEventID) {
this.pKeyEventID = pKeyEventID;
}

public Long getPKeyEventID() {
return pKeyEventID;
}

public void setFKeyRaceDescription(Long fKeyRaceDescription) {
this.fKeyRaceDescription = fKeyRaceDescription;
}

public Long getFKeyRaceDescription() {
return fKeyRaceDescription;
}

public String getValues() {
return getPKeyEventID() + ;   + getFKeyRaceDescription() + ;  

+ getDate();
}

}


Thank you

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Re: [appengine-java] Re: Google maps geocoder responds with 620 error since last nights server maintenance

2010-02-19 Thread Jeff Schnitzer

It helps to have some links... please star these issues!

http://code.google.com/p/googleappengine/issues/detail?id=2806

http://code.google.com/p/gmaps-api-issues/issues/detail?id=2186

This problem is a really big deal, several features of my app depend
on reverse geocodes.  It looks like a simple whitelisting issue,
shouldn't be too hard to fix!

Jeff

On Fri, Feb 19, 2010 at 12:26 AM, Anders anders.ny...@gmail.com wrote:
 Same problem here. No problems for 4 months with unchanged mapping
 code and as of the last day mostly 620 results.

 I am running on the python appengine but as previously said this is
 probably an issue with the geocoder IP limit.

 On 19 Feb, 07:21, Ivan Pardo trux...@gmail.com wrote:
 ive entered this is a bug on the maps api bug tracker.  ive tried on 2
 google apps accounts and ive asked others to confirm.  it looks like
 geocoding is impossible from google apps servers.

 On Feb 18, 6:25 pm, Ivan Pardo trux...@gmail.com wrote:

  At least now I can be certain that it's not a problem with my code.  I
  can only hope that Google can fix this problem ASAP, as my application
  is absolutely useless without a working geocoder.

  On Feb 18, 5:44 pm, Jeff Schnitzer j...@infohazard.org wrote:

   I'm also seeing 620 errors for most (possibly all) of my reverse
   geocode requests.

   Jeff

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Re: [appengine-java] Re: Google maps geocoder responds with 620 error since last nights server maintenance

Hey guys,

I just wanted to let everyone know that I'm working on this. Stay tuned.
I'll post to this thread when I have updates.

On Fri, Feb 19, 2010 at 10:51 AM, Jeff Schnitzer j...@infohazard.orgwrote:

It helps to have some links... please star these issues!

http://code.google.com/p/googleappengine/issues/detail?id=2806

http://code.google.com/p/gmaps-api-issues/issues/detail?id=2186

This problem is a really big deal, several features of my app depend
on reverse geocodes. It looks like a simple whitelisting issue,
shouldn't be too hard to fix!

Jeff

On Fri, Feb 19, 2010 at 12:26 AM, Anders anders.ny...@gmail.com wrote:
Same problem here. No problems for 4 months with unchanged mapping
code and as of the last day mostly 620 results.

I am running on the python appengine but as previously said this is
probably an issue with the geocoder IP limit.

On 19 Feb, 07:21, Ivan Pardo trux...@gmail.com wrote:
ive entered this is a bug on the maps api bug tracker. ive tried on 2
google apps accounts and ive asked others to confirm. it looks like
geocoding is impossible from google apps servers.

On Feb 18, 6:25 pm, Ivan Pardo trux...@gmail.com wrote:

At least now I can be certain that it's not a problem with my code. I
can only hope that Google can fix this problem ASAP, as my application
is absolutely useless without a working geocoder.

On Feb 18, 5:44 pm, Jeff Schnitzer j...@infohazard.org wrote:

I'm also seeing 620 errors for most (possibly all) of my reverse
geocode requests.

Jeff

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Re: [appengine-java] Re: Google maps geocoder responds with 620 error since last nights server maintenance

I think there's a version in the main group. I'll post to that one first if
it exists.

On Fri, Feb 19, 2010 at 10:56 AM, Ikai L (Google) ika...@google.com wrote:

Hey guys,

I just wanted to let everyone know that I'm working on this. Stay tuned.
I'll post to this thread when I have updates.

On Fri, Feb 19, 2010 at 10:51 AM, Jeff Schnitzer j...@infohazard.orgwrote:

It helps to have some links... please star these issues!

http://code.google.com/p/googleappengine/issues/detail?id=2806

http://code.google.com/p/gmaps-api-issues/issues/detail?id=2186

This problem is a really big deal, several features of my app depend
on reverse geocodes. It looks like a simple whitelisting issue,
shouldn't be too hard to fix!

Jeff

On Fri, Feb 19, 2010 at 12:26 AM, Anders anders.ny...@gmail.com wrote:
Same problem here. No problems for 4 months with unchanged mapping
code and as of the last day mostly 620 results.

I am running on the python appengine but as previously said this is
probably an issue with the geocoder IP limit.

On Feb 18, 6:25 pm, Ivan Pardo trux...@gmail.com wrote:

At least now I can be certain that it's not a problem with my code.
I
can only hope that Google can fix this problem ASAP, as my
application
is absolutely useless without a working geocoder.

On Feb 18, 5:44 pm, Jeff Schnitzer j...@infohazard.org wrote:

I'm also seeing 620 errors for most (possibly all) of my reverse
geocode requests.

Jeff

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Re: [appengine-java] Using GAE Platform Outside of Google

2010-02-19 Thread Jeff Schnitzer

There is this:

http://appscale.cs.ucsb.edu/
http://code.google.com/p/appscale/

I have no idea how mature or stable it is.

Jeff

On Thu, Feb 18, 2010 at 2:58 PM, Greg Marine gregmar...@iccnet.org wrote:
 Hello All!

 I am evaluating GAE/Java for some of my projects and came across a
 scenario I can't seem to find any information on. I am porting an
 application I would normally have available through GAE, but have a
 client who wants to keep everything housed onsite. I'm assuming the
 development server would not be appropriate for such an
 implementation. So, is there a version of GAE available to install on
 a server in such an environment or can the GAE classes be used in
 another servlet container such as Tomcat? This would also be the case
 if someone were to want to use the software offline using localhost. I
 understand this isn't exactly an ideal scenario. However, I thought I
 would at least ask.

 Thank you,
 Greg

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[appengine-java] Re: App Engine and Spring slow start up

2010-02-19 Thread luijar

I believe my development environment was on 1.3.0. That might be
something to look at, although it seems that probably it's a very
small overhead, do you have any metrics that would give some evidence
as to how much overhead is offline precompilation adding?

Thanks

On Feb 18, 2:04 pm, Don Schwarz schwa...@google.com wrote:
Have you deployed your application with the 1.3.1 SDK? That release turned
on offline precompilation by default, which is an optimization that may
help.

On Thu, Feb 18, 2010 at 7:59 AM, Alex chasov...@gmail.com wrote:
Hi,

It appeared that long init problem is well known for Grails users:
http://jira.codehaus.org/browse/GRAILSPLUGINS-1736

I wasted couple of weeks to create app I cannot run. Hope that
SpringSource and Google can solve the issue.

On Feb 17, 7:41 pm, Stephan Hartmann hartm...@metamesh.de wrote:
The problem is that the initialization of your app takes longer than 30
seconds.
Pinging your app doesn't help when the app is restarted due to
redeployment
or maintenance, or when high traffic demands a second instance.

You should try to reduce your startup time.

regards,
Stephan

2010/2/17 luijar luis.j.aten...@gmail.com

Great, all of our projects are Spring enabled lol. But I guess it's
good that we are not the only ones seeing this, hopefully it gets a
little more visibility. We have a cron job (1 min) that tries to keep
our application alive by hitting a URL, but it does not do a very good
job. It's frustrating and we don't even have access to the 500 page to
tell the user to retry or go somewhere else.

On Feb 17, 11:21 am, oth other...@gmail.com wrote:
Yes we have seen this problem a lot. Per our tests, an application
becomes idle after a minute of non activity. So, the unfortunate
reality is that you need to keep your app alive by simulating
activity
on it. Or go the non Spring route.

Thanks

On Feb 16, 4:14 pm, luijar luis.j.aten...@gmail.com wrote:

Hello Google App Engine forum,

We have been seeing ever since we deployed our applications
(currently 3 of them) that when our application instances become
idle
(they have not been hit for x amount of seconds) subsequent
requests
return with a 500 response. Logs show a hard deadline exceeded
error

com.google.apphosting.runtime.HardDeadlineExceededError: This
request
(32306ebe63b71ab0) started at 2010/02/12 20:39:11.984 UTC and was
still executing at 2010/02/12 20:39:41.225 UTC.
at

com.google.appengine.runtime.Request.process-32306ebe63b71ab0(Request.java)

And the first line of the log message has the following :

02-12 12:39PM 14.088

javax.servlet.ServletContext log: Initializing Spring root
WebApplicationContext

Question:
Has anyone else seen this behavior? How long does it take for an
application instance to become idle?

Thanks

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[appengine-java] Re: Google Apps Support in GAE

2010-02-19 Thread Peter Ondruska

I use http://code.google.com/p/gdata-java-client/

On Feb 19, 5:16 pm, g3 insight insigh...@gmail.com wrote:
 I want to provide Google Apps search and document upload service in my
 GAE application.
 Is there any API/Service can support this function in GAE application?

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Re: [appengine-java] Re: Google maps geocoder responds with 620 error since last nights server maintenance

The configuration changes have been made and should be live shortly if not
immediately. Can you check and let me know if they are working? I'd give it
about ~30 minutes if it doesn't work right away.

On Fri, Feb 19, 2010 at 10:56 AM, Ikai L (Google) ika...@google.com wrote:

I think there's a version in the main group. I'll post to that one first if
it exists.

On Fri, Feb 19, 2010 at 10:56 AM, Ikai L (Google) ika...@google.comwrote:

Hey guys,

I just wanted to let everyone know that I'm working on this. Stay tuned.
I'll post to this thread when I have updates.

On Fri, Feb 19, 2010 at 10:51 AM, Jeff Schnitzer j...@infohazard.orgwrote:

It helps to have some links... please star these issues!

http://code.google.com/p/googleappengine/issues/detail?id=2806

http://code.google.com/p/gmaps-api-issues/issues/detail?id=2186

This problem is a really big deal, several features of my app depend
on reverse geocodes. It looks like a simple whitelisting issue,
shouldn't be too hard to fix!

Jeff

On Fri, Feb 19, 2010 at 12:26 AM, Anders anders.ny...@gmail.com wrote:
Same problem here. No problems for 4 months with unchanged mapping
code and as of the last day mostly 620 results.

I am running on the python appengine but as previously said this is
probably an issue with the geocoder IP limit.

On Feb 18, 6:25 pm, Ivan Pardo trux...@gmail.com wrote:

At least now I can be certain that it's not a problem with my code.
I
can only hope that Google can fix this problem ASAP, as my
application
is absolutely useless without a working geocoder.

On Feb 18, 5:44 pm, Jeff Schnitzer j...@infohazard.org wrote:

I'm also seeing 620 errors for most (possibly all) of my reverse
geocode requests.

Jeff

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Re: [appengine-java] Re: Compass on Google App Engine

2010-02-19 Thread yjun hu

i have a blog with compass on GAE, and i implement the searchable function
here..
http://hapeblog.appspot.com/

On Thu, Feb 18, 2010 at 2:11 AM, a.maza andr.m...@gmail.com wrote:

did you experience the problems in production environment or already
in the development environment?

May the indexing problem be avoided when using task queues? what do
you think?

On 17 Feb., 18:30, Raphael André Bauer raphael.andre.ba...@gmail.com
wrote:
On Wed, Feb 17, 2010 at 3:42 PM, John Patterson jdpatter...@gmail.com
wrote:
I thought I read somewhere on this list that compass and lucene cannot
perform well on the datastore due to the number of index segments that
need
to be read for every query?

i could not get it up and running one month ago with a large datset. i
know the compass people are working hard to resolve issues with the
gae, but i doubt (technically) that lucene is able to run properly on
the app engine datastore (please correct me).

it might, however, run well with a smaller dataset (100megs, offline
indexing, and/or using an index file in the war folder)...

ra!

On 17 Feb 2010, at 21:23, a.maza wrote:

checkout the latest source from compass. The last commit removes the
Referencable interface.

On 17 Feb., 14:36, Raphael André Bauer raphael.andre.ba...@gmail.com

wrote:

On Tue, Feb 16, 2010 at 8:15 AM, yonny yon...@googlemail.com
wrote:

Hello Folks,
I think deploying a compass app on gae is not possible because the
core compass interface extends javax.naming.Referenceable which is
not
on google's whitelist.I encoutered a similar problem when I call
buildCompass() It throws a NoClassDefFoundError on
org.compass.core.impl.DefaultCompass Any thoughts?? anyone?

follow this
one:http://www.kimchy.org/searchable-google-appengine-with-compass/
ra

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Re: [appengine-java] Problem whit upload form multipart

2010-02-19 Thread yjun hu

maybe this will be helpful
http://hapeblog.appspot.com/blog.shtml?id=2002

On Wed, Feb 17, 2010 at 1:01 PM, John Patterson jdpatter...@gmail.comwrote:

 Do you have a different version of the jar in your lib directory to the one
 on your build path?


 On 17 Feb 2010, at 09:11, NIko Judo wrote:

  Hola he probado el codigo siguiente para recibir un formulario
 multipart en mi aplicacion :

 Test folowing code

 import org.apache.commons.fileupload.FileItemStream;
 import org.apache.commons.fileupload.FileItemIterator;
 import org.apache.commons.fileupload.servlet.ServletFileUpload;

 import java.io.InputStream;
 import java.io.IOException;
 import java.util.logging.Logger;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public class FileUpload extends HttpServlet {
  private static final Logger log =
 Logger.getLogger(FileUpload.class.getName());


  public void doPost(HttpServletRequest req, HttpServletResponse res)
 throws ServletException, IOException {
   try {
 ServletFileUpload upload = new ServletFileUpload();
 res.setContentType(text/plain);

 FileItemIterator iterator = upload.getItemIterator(req);
 while (iterator.hasNext()) {
   FileItemStream item = iterator.next();
   InputStream stream = item.openStream();

   if (item.isFormField()) {
 log.warning(Got a form field:  + item.getFieldName());
   } else {
 log.warning(Got an uploaded file:  + item.getFieldName() +
 , name =  + item.getName());

 // You now have the filename (item.getName() and the
 // contents (which you can read from stream).  Here we just
 // print them back out to the servlet output stream, but you
 // will probably want to do something more interesting (for
 // example, wrap them in a Blob and commit them to the
 // datastore).
 int len;
 byte[] buffer = new byte[8192];
 while ((len = stream.read(buffer, 0, buffer.length)) != -1)
 {
   res.getOutputStream().write(buffer, 0, len);
 }
   }
 }
   } catch (Exception ex) {
 throw new ServletException(ex);
   }
  }


   @Override
   protected void doGet(HttpServletRequest request,
 HttpServletResponse response)
   throws ServletException, IOException {

   }



 }

 el caso es que simpre me da un error cuando envio el formulario con
 image

 folowing error :

 Error for /FileUpload
 java.lang.NoSuchMethodError:

 org.apache.commons.fileupload.servlet.ServletFileUpload.getItemIterator(Ljavax/
 servlet/http/HttpServletRequest;)Lorg/apache/commons/fileupload/
 FileItemIterator;
at com.ubicacion.servlet.FileUpload.doPost(FileUpload.java:32)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at
 org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
 487)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1093)
at

 com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:
 97)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1084)
at

 com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
 35)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1084)
at

 com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
 43)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1084)
at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
 360)
at
 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
 216)
at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
 181)
at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
 712)
at
 org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
 405)
at

 com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:
 238)
at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at
 org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 506)
at org.mortbay.jetty.HttpConnection
 $RequestHandler.headerComplete(HttpConnection.java:830)
at

 com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
 76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at

 com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
 135)

Re: [appengine-java] log4j init fails

2010-02-19 Thread Rusty Wright


I think you can simply put the log4j.properties file in the WEB-INF/classes dir and you 
don't need any appengine-web.xml stuff for it.  Log4j looks for its configuration file 
on the classpath which means it looks in WEB-INF/classes (and also in all of 
the jars in the lib directory).


AJ Chen wrote:

I have  log4j config in appengine-web.xml,
system-properties
property name=java.util.logging.config.file 
value=WEB-INF/logging.properties/
property name=log4j.configuration 
value=file:WEB-INF/classes/log4j.properties/
property name=monitor.config.file 
value=WEB-INF/monitor.properties/

/system-properties
   
but GAE still complains about it:

log4j:WARN No appenders could be found for logger (DataNucleus.Connection).
log4j:WARN Please initialize the log4j system properly.

Is there anything else that should be set?

thanks,
-aj

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Re: [appengine-java] Re: Google maps geocoder responds with 620 error since last nights server maintenance

2010-02-19 Thread Jeff Schnitzer

It doesn't seem to be working.

Not only am I still seeing a ton of 620s, but half the time I'm also
getting something that doesn't parse as JSON.  It contains an
unexpected ''.  I'm guessing it's some sort of error message getting
rendered in html or xml.

org.codehaus.jackson.JsonParseException: Unexpected character (''
(code 60)): expected a valid value (number, String, array, object,
'true', 'false' or 'null')
 at [Source: java.io.bytearrayinputstr...@908faf; line: 1, column: 2]

When I try the same URL from my desktop, it works fine.

Jeff

On Fri, Feb 19, 2010 at 2:16 PM, Ikai L (Google) ika...@google.com wrote:
 The configuration changes have been made and should be live shortly if not
 immediately. Can you check and let me know if they are working? I'd give it
 about ~30 minutes if it doesn't work right away.

 On Fri, Feb 19, 2010 at 10:56 AM, Ikai L (Google) ika...@google.com wrote:

 I think there's a version in the main group. I'll post to that one first
 if it exists.

 On Fri, Feb 19, 2010 at 10:56 AM, Ikai L (Google) ika...@google.com
 wrote:

 Hey guys,
 I just wanted to let everyone know that I'm working on this. Stay tuned.
 I'll post to this thread when I have updates.

 On Fri, Feb 19, 2010 at 10:51 AM, Jeff Schnitzer j...@infohazard.org
 wrote:

 It helps to have some links... please star these issues!

 http://code.google.com/p/googleappengine/issues/detail?id=2806

 http://code.google.com/p/gmaps-api-issues/issues/detail?id=2186

 This problem is a really big deal, several features of my app depend
 on reverse geocodes.  It looks like a simple whitelisting issue,
 shouldn't be too hard to fix!

 Jeff

 On Fri, Feb 19, 2010 at 12:26 AM, Anders anders.ny...@gmail.com wrote:
  Same problem here. No problems for 4 months with unchanged mapping
  code and as of the last day mostly 620 results.
 
  I am running on the python appengine but as previously said this is
  probably an issue with the geocoder IP limit.
 
  On 19 Feb, 07:21, Ivan Pardo trux...@gmail.com wrote:
  ive entered this is a bug on the maps api bug tracker.  ive tried on
  2
  google apps accounts and ive asked others to confirm.  it looks like
  geocoding is impossible from google apps servers.
 
  On Feb 18, 6:25 pm, Ivan Pardo trux...@gmail.com wrote:
 
   At least now I can be certain that it's not a problem with my code.
    I
   can only hope that Google can fix this problem ASAP, as my
   application
   is absolutely useless without a working geocoder.
 
   On Feb 18, 5:44 pm, Jeff Schnitzer j...@infohazard.org wrote:
 
I'm also seeing 620 errors for most (possibly all) of my reverse
geocode requests.
 
Jeff
 
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 http://googleappengine.blogspot.com | http://twitter.com/app_engine



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 Developer Programs Engineer, Google App Engine
 http://googleappengine.blogspot.com | http://twitter.com/app_engine



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[appengine-java] Re: Parsing files uses too much cpu loading

2010-02-19 Thread Blake

Create a task (for the task queue) - we'll call it SomeTaskServlet
that imports a section of the file between two line numbers that are
passed into it.

In this task above, here's what you'd do:
1. count how many lines are in the file - let's say 105
2. divide that by ten (make sure to handle the remainder!!)
3. kick off/queue 10 SomeTaskServlet tasks:
   - lines 1-10
   - lines 11-20
   - lines 21-30
   ...
   - lines 100-105
4. Make sure that your queued task is idempotent (http://
en.wikipedia.org/wiki/Idempotence), and to throw an exception if
there's a problem.  That way, the queue processor will retry it on
error, and you'll never have to worry about a thing.

The one big gotcha is that you really should know how many records you
have to process up front, or you'll have a hard time knowing when to
stop chunking.  This is tough when you're dealing with databases in
App Engine, because (afaik), you can't SELECT COUNT(*), but you're
working with a file.

Simple!

If that file grows, and you wanna make sure you're scalable, then the
SomeTaskServlet handles a max number of lines - say 10.  If the range
that was passed into it is larger than 10, then queue off the work
that it was given into 10 batches back to another instance of itself.
By the time you have a small enough batch, you'll have a chunk of data
that you can process in 1/10 second.  I'd recommend giving this task
its own queue so you can throttle it so that you don't eat up your
dynamic concurrent thread count (or whatever they call that).

Reply whether this makes sense.  I just did this to import 5,000
records from another system via REST.  The first several rounds keep
forking off more and more threads to chunk the data down into smaller
bits.  At the end, each of the hundreds of threads has SUCH a small
job to do, you can throttle it, and they retry themselves on error.

- Blake

On Feb 18, 4:31 pm, novarse stephenmwi...@gmail.com wrote:
 Hello,
 I'm trying to get data from csv files into my datastore tables. My app
 is showing cpu loadings of
  30356ms 20023cpu_ms 11480api_cpu_ms from the dash board and I was
 wondering if someone could see how I could improve this situation. I'm
 pretty new to Java.

 sample line from file:
 -470,16/12/2008 0:00:00,125

 this parses the file:
         private void processEvents(String fileName) {
                 try {
                         previousLineNumber = 0;
                         i = 1;
                         file = new File(fileName);
                         CSVParser shredder = new CSVParser(new 
 FileInputStream(file));
                         while ((t = shredder.nextValue()) != null) {
                                 if (previousLineNumber != 
 shredder.getLastLineNumber()) {
                                         if (previousLineNumber != 0) { // 
 save event
                                                 saveData(jdoEvent);
                                         }
                                         previousLineNumber = 
 shredder.getLastLineNumber();
                                         i = 1;
                                 } else
                                         i++;
                                 switch (i) {
                                 case 1:
                                         
 jdoEvent.setPKeyEventID(Long.parseLong(t));
                                         break;
                                 case 2:
                                         try {
                                                 Date d = processDate(t);
                                                 jdoEvent.setDate(d);
                                         } catch (ParseException e) {
                                                 
 System.out.println(e.getMessage());
                                         }
                                         break;
                                 case 3:
                                         
 jdoEvent.setFKeyRaceDescription(Long.parseLong(t));
                                         break;
                                 }
                         }

                         if (previousLineNumber != 0) {
                                 saveData(jdoEvent);
                         }
                 } catch (Exception e) {
                         System.err.println(e.getMessage());
                 }
         }

 this saves the object:
         private J void saveData(J jdoObject) {
                 PersistenceManager pm = PMF.get().getPersistenceManager();
                 try {
                         pm.makePersistent(jdoObject);
                 } finally {
                         pm.close();
                 }
         }

 this is my data object:

 package com.myproj.client;

 import java.util.Date;

 import javax.jdo.annotations.IdGeneratorStrategy;
 import javax.jdo.annotations.IdentityType;
 import javax.jdo.annotations.PersistenceCapable;
 import javax.jdo.annotations.Persistent;
 import

[appengine-java] Re: Using GAE Platform Outside of Google

2010-02-19 Thread Greg Marine

Thanks Jeff! I'll have a look at this. I really appreciate it!

Greg

On Feb 19, 1:59 pm, Jeff Schnitzer j...@infohazard.org wrote:
 There is this:

 http://appscale.cs.ucsb.edu/http://code.google.com/p/appscale/

 I have no idea how mature or stable it is.

 JeffOn Thu, Feb 18, 2010 at 2:58 PM, Greg Marine gregmar...@iccnet.org 
 wrote:
  Hello All!

  I am evaluating GAE/Java for some of my projects and came across a
  scenario I can't seem to find any information on. I am porting an
  application I would normally have available through GAE, but have a
  client who wants to keep everything housed onsite. I'm assuming the
  development server would not be appropriate for such an
  implementation. So, is there a version of GAE available to install on
  a server in such an environment or can the GAE classes be used in
  another servlet container such as Tomcat? This would also be the case
  if someone were to want to use the software offline using localhost. I
  understand this isn't exactly an ideal scenario. However, I thought I
  would at least ask.

  Thank you,
  Greg

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Re: [appengine-java] Null Pointer Exception at the time of transaction commit.

2010-02-19 Thread Sushama Khadilkar

Thanks,
But i'm not getting wat are u saying so can u plz explain clearly...

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[appengine-java] Re: What CPU times should I expect in the logs?

2010-02-19 Thread Blake

Thanks John.  I did do that, but after reading the documentation, it
seems that if you query for 10 objects with || key=='abc' ||
key=='def' || key=='ghi', then it'll actually perform 10 queries
under the hood.

I'm noticing a lot of slow-down in my app from these GAE exceptions
that I think are due to my app starting up in new JVMs.  That might be
part of the problem.  The other part is that my entities were a little
screwy.  I flattened the children into the parent since there's always
three children, and each child only has a couple properties.  That
helped.

After that, I implemented caching, which makes it scream now.  I'm
caching the display DTOs rather than the entities, because just
building the DTOs was taking about 250 cpu ms.

So, with *nothing* in cache, my original takes 2 cpu seconds, 1 api
second. With the supporting entities in cache, it comes down to 800ms/
500ms.  After cleaning up my query and the entities as mentioned
above, I brought that down to 500ms/200.  And then, after caching the
objects I'm querying for here, I'm down to 50-90 cpu ms with no API
ms.

Okay, as I was finishing this post, I hit the app a few more times...
It's funny/frustrating how sporadic the system is.  Sometimes the
optimized path still takes up to 7 seconds, just to pull from
cache!!!  A few more refreshes and it's back down to 55 cpu ms and no
api ms.

Oh well, I guess this is just the nature of the beast.  Some users are
going to have pages take a few seconds to load at times, but at least
I know that if I had to scale this up, it would still work, right? :)

On Feb 19, 1:36 pm, John Patterson jdpatter...@gmail.com wrote:
 You could try to batch the get of your ObjectBeingFollowed entities  
 so you only do two gets.  Is most of your cpu time api_cpu?

 On 19 Feb 2010, at 12:29, Blake wrote:



  I'm relatively new to GAE.  My queries so far have for single entities
  with owned relationships, queried by key, which has been great - no
  orange or red screaming in my logs.  More recently, I've been working
  on a simple page that does this:

  1. get a list of 10 of the user's Following entities - each contain
  a key to an object the user is following, and some extra metadata
  about the relationship

  2. get each of the ObjectBeingFollowed entities by key in the
  Following entity

  Easy enough to get working, but the logs are screaming at me with CPU
  times up around 0.5-1.0 seconds.  Is this just what to expect?  Do you
  guys have pages that always return red or orange log messages?

  Thanks!

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[google-appengine] Re: how to upgrade my sdk from 1.3.0 to 1.3.1 in eclipse

2010-02-19 Thread Seth

For some reason, I also continue to get this warning from my Eclipse.
I have run the upgrade via the normal Eclipse software update, and it
claims I have the latest 1.3.1 version.  However, I still see the
following notice when I start up the embedded server via Eclipse:


There is a new version of the SDK available.
---
Latest SDK:
Release: 1.3.1
Timestamp: Mon Feb 08 13:00:41 HST 2010
API versions: [1.0]

---
Your SDK:
Release: 1.3.0
Timestamp: Mon Dec 14 08:47:37 HST 2009
API versions: [1.0]

---
Please visit http://code.google.com/appengine for the latest SDK.


On Feb 18, 12:46 pm, Ikai L (Google) ika...@google.com wrote:
 The SDK update works for me. SDK 1.3.1 is available. Can you check again?

 On Tue, Feb 16, 2010 at 1:01 PM, Warren Goldman 
 warren.gold...@gmail.comwrote:





  Receiving this message when debugging my google app in eclipse;

  
  There is a new version of the SDK available.
  ---
  Latest SDK:
  Release: 1.3.1
  Timestamp: Mon Feb 08 17:00:41 CST 2010
  API versions: [1.0]

  ---
  Your SDK:
  Release: 1.3.0
  Timestamp: Mon Dec 14 12:47:37 CST 2009
  API versions: [1.0]

  ---
  Please visithttp://code.google.com/appenginefor the latest SDK.
  

  Not sure what to do about this.

  Using this update url in eclipse (galileo 3.5);
 http://dl.google.com/eclipse/plugin/3.5(doing update has no affect)

  The download of the sdk for 1.3.1 (http://
  googleappengine.googlecode.com/files/appengine-java-sdk-1.3.1.zip) is
  quite different that 1.3.0  folder structure in eclipse
  has folder com.google.appengine.eclipse.sdkbundle.
  1.3.0_1.3.0.v200912141120
  in plugins dir.

  any help is appreciated.

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 Enginehttp://googleappengine.blogspot.com|http://twitter.com/app_engine

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[google-appengine] Re: how to upgrade my sdk from 1.3.0 to 1.3.1 in eclipse

2010-02-19 Thread Seth

Try manually uninstalling all your google plugins.

If you are using Galileo (as it sounds like you are because you
mentioned the 3.5 plugin repository), then you can use this link:

http://eclipse.dzone.com/articles/ten-tips-installing-plugins

which helps you uninstall plugins.  Then, reinstall the Google plugins
as normal.

On Feb 16, 11:01 am, Warren Goldman warren.gold...@gmail.com wrote:
 Receiving this message when debugging my google app in eclipse;

 
 There is a new version of the SDK available.
 ---
 Latest SDK:
 Release: 1.3.1
 Timestamp: Mon Feb 08 17:00:41 CST 2010
 API versions: [1.0]

 ---
 Your SDK:
 Release: 1.3.0
 Timestamp: Mon Dec 14 12:47:37 CST 2009
 API versions: [1.0]

 ---
 Please visithttp://code.google.com/appenginefor the latest SDK.
 

 Not sure what to do about this.

 Using this update url in eclipse (galileo 
 3.5);http://dl.google.com/eclipse/plugin/3.5(doing update has no affect)

 The download of the sdk for 1.3.1 (http://
 googleappengine.googlecode.com/files/appengine-java-sdk-1.3.1.zip) is
 quite different that 1.3.0  folder structure in eclipse
 has folder com.google.appengine.eclipse.sdkbundle.
 1.3.0_1.3.0.v200912141120
 in plugins dir.

 any help is appreciated.

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[google-appengine] Re: how to upgrade my sdk from 1.3.0 to 1.3.1 in eclipse

2010-02-19 Thread Seth

So I tried what I said, and I'm not in any better shape.

I uninstalled all the google plugins, restarted, and then reinstalled
the google plugins (gwt, appengine).

Now when I try to start my webapp from within Eclipse, I get this
error:

Error occurred during initialization of VM
agent library failed to init: instrument
Error opening zip file or JAR manifest missing : /Users/sethladd/
eclipse/plugins/com.google.appengine.eclipse.sdkbundle.
1.3.0_1.3.0.v200912141120/appengine-java-sdk-1.3.0/lib/agent/appengine-
agent.jar

Not sure why it's trying to reference 1.3.0

Might have to uninstall Eclipse and try a completely fresh install.

On Feb 18, 10:24 pm, Seth sethl...@gmail.com wrote:
 Try manually uninstalling all your google plugins.

 If you are using Galileo (as it sounds like you are because you
 mentioned the 3.5 plugin repository), then you can use this link:

 http://eclipse.dzone.com/articles/ten-tips-installing-plugins

 which helps you uninstall plugins.  Then, reinstall the Google plugins
 as normal.

 On Feb 16, 11:01 am, Warren Goldman warren.gold...@gmail.com wrote:



  Receiving this message when debugging my google app in eclipse;

  
  There is a new version of the SDK available.
  ---
  Latest SDK:
  Release: 1.3.1
  Timestamp: Mon Feb 08 17:00:41 CST 2010
  API versions: [1.0]

  ---
  Your SDK:
  Release: 1.3.0
  Timestamp: Mon Dec 14 12:47:37 CST 2009
  API versions: [1.0]

  ---
  Please visithttp://code.google.com/appengineforthe latest SDK.
  

  Not sure what to do about this.

  Using this update url in eclipse (galileo 
  3.5);http://dl.google.com/eclipse/plugin/3.5(doingupdate has no affect)

  The download of the sdk for 1.3.1 (http://
  googleappengine.googlecode.com/files/appengine-java-sdk-1.3.1.zip) is
  quite different that 1.3.0  folder structure in eclipse
  has folder com.google.appengine.eclipse.sdkbundle.
  1.3.0_1.3.0.v200912141120
  in plugins dir.

  any help is appreciated.

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Re: [google-appengine] GAE/J Low Level API Transaction management.

2010-02-19 Thread Patrick Twohig

I had that suspicion, but, I wasn't 100% sure. I wonder if it's an issue
that shows up in production or just local datastore.

Pat.

On Thu, Feb 18, 2010 at 1:34 PM, Jeff Schnitzer j...@infohazard.org wrote:

I just created a unit test for this case (there wasn't one before) and
sure enough, it fails. Looks like a bug in appengine. Create an
issue, I'll star it.

The failing unit test is the last one in this file:

http://code.google.com/p/objectify-appengine/source/browse/trunk/src/com/googlecode/ob
jectify/test/QueryTests.java

FWIW, our implementation is the ancestor() method:

http://code.google.com/p/objectify-appengine/source/browse/trunk/src/com/googlecode/objectify/impl/QueryImpl.java

Javadocs are on the interface class:

http://objectify-appengine.googlecode.com/svn/trunk/javadoc/com/googlecode/objectify/Query.html

Jeff

On Thu, Feb 18, 2010 at 11:22 AM, Patrick Twohig
patr...@namazustudios.com wrote:
Duly noted. However, I'm not about to rewrite a bulk of my code over a
single issue I'm having. At the time I started this, I hadn't realized
Objectify existed and tried using JDO which turned out to be a gigantic
nightmare, so I slimmed it down and wrote my own wrapper similar to
Objectify. Right now the only pressing issue is that ancestor queries
aren't working as expected and it's driving me nuts. Could you perhaps
point me to some source in Objectify that executes an ancestor query that
I
may be able to see?

On Wed, Feb 17, 2010 at 10:05 PM, Jeff Schnitzer j...@infohazard.org
wrote:

The documentation I wrote up here might help:

http://code.google.com/p/objectify-appengine/wiki/Concepts

You might consider using something like Objectify (or Twig, or
SimpleDS, etc) instead of the Low-Level API.

Jeff

On Wed, Feb 17, 2010 at 9:23 PM, Patrick Twohig
patr...@namazustudios.com wrote:
Aside from the Javadocs, does there exist any further documentation on
the
GAE/J low-level API. I've had a handfull of issues with it so far and
I'm
at a bit of a loss. I'm having trouble with ancestor queries.
Specifically, I'm not getting any child entities when I look for
objects
with no kind specified and just an ancestor. However, the equivalent
code
in python performs as expected.

I was also curious how GAE/J organizes transactions. From what I
gather
in
the documentation, each transaction is organized in a ThreadLocal
stack.
Every time you call DatastoreService.beginTransaction() it creates a
new
transaction, pushes it on the thread local stack then when it's done,
it's
popped of. I was curious if it may be possible to add a method that
can
provide the current transaction given a particular key somehow.

--
Patrick H. Twohig.

Namazu Studios
P.O. Box 34161
San Diego, CA 92163-4161

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[google-appengine] indexes in building state for quite a while ...

2010-02-19 Thread Prawyn

Hi,
I updated set of indexes and it was in building state for more
than one and half days now. I tried to use vacuum_indexes but it
didn't solve the
problem.. Any help guys..

My app id is os247test

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[google-appengine] Re: Google maps usage

The only thing you can do to address your problem is through some kind
of ajax, which is quite feasible if you have to plot your values once
a minute or so.

Happy coding ;)

Nick

On Feb 18, 12:25 pm, Avis developer sivaram.subb...@gmail.com wrote:
 I need to develop a application which uses a GPS mobile to get the
 latitude and longitude coordinates of a person and plot in Google
 maps. I will be using google AppEngine to deploy the site, so i will
 be using datastore provided by GAE. I need to know how to plot the
 values in maps asynchronously , i.e as the value in the datastore
 changes,without the user requesting again and again through the
 browser, it needs to be updated asynchronously like cricinfo does for
 updating scores  . What event should i use to the above cause..  Am a
 beginner in programming, so pls consider my level n help me..

 thanks for the reply in advance

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[google-appengine] Re: pygooglechart

Sure you can after installing the library and including the files in
your application provided this library does not depend on anything but
python.
Also since data passing mechanism for google visualization api is
quite easy to implement in python you can avoid the burden of one more
import and write your own interface.
For an example of using visualization api from gae you can take a look
at:  http://www.geognos.com/geo/en/cc/no.html#Economy
Unfortunately i did not have the time to document the code but feel
free to examine the page source code and the relative javascript
files.

Happy coding;)



On Feb 18, 2:30 pm, Massimiliano massimiliano.pietr...@gmail.com
wrote:
 Dear All,
 I'm trying to learn using python and Google App Engine. Can I use this
 library on the appengine? Just importing this in the python application
 (from pygooglechart import *)?

 Massimiliano

 --

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[google-appengine] Error 500 on Datastore Viewer

2010-02-19 Thread Stefano Ciccarelli

In the last couple of hours every time I try to access the Datastore
Viewer or the Datastore Statistics I get always the error 500.

Someone could help me? Thx.

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Re: [google-appengine] Re: pygooglechart

2010-02-19 Thread Massimiliano

Sure you can after installing the library on my PC?

2010/2/19 nickmilon nickmi...@gmail.com

 Sure you can after installing the library and including the files in
 your application provided this library does not depend on anything but
 python.
 Also since data passing mechanism for google visualization api is
 quite easy to implement in python you can avoid the burden of one more
 import and write your own interface.
 For an example of using visualization api from gae you can take a look
 at:  http://www.geognos.com/geo/en/cc/no.html#Economy
 Unfortunately i did not have the time to document the code but feel
 free to examine the page source code and the relative javascript
 files.

 Happy coding;)



 On Feb 18, 2:30 pm, Massimiliano massimiliano.pietr...@gmail.com
 wrote:
  Dear All,
  I'm trying to learn using python and Google App Engine. Can I use this
  library on the appengine? Just importing this in the python application
  (from pygooglechart import *)?
 
  Massimiliano
 
  --
 
  My email: massimiliano.pietr...@gmail.com
  My Google Wave: massimiliano.pietr...@googlewave.com

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[google-appengine] Re: Strange traffic Charts after the last maintenance

2010-02-19 Thread matic

I can also confirm that the problem is fixed.

On Feb 19, 4:12 am, gwstuff gwsa...@gmail.com wrote:
 OK. The request chat in my dashboard just spiked into the normal
 range:http://corewars.org/spike.png. Looks like this problem is
 fixed.

 On Feb 18, 8:51 pm, gwstuff gwsa...@gmail.com wrote:



  Confirmed. My request/second rate has changed from 1.5-2.5 to 0.5-1.0
  on an average. I chart my request data separately and can see that the
  load is the same as before, so this has something to do with the
  calculation.

  Sapan

  On Feb 18, 3:05 pm, matic mytix.m...@gmail.com wrote:

   After the last GAE maintenance yesterday, our traffic (req/sec)
   lowered dramatically and all the charts (req/sec, milisec/req, errors/
   sec) are very 
   strange:http://img.skitch.com/20100218-bqfa4pdhgefyf6hir8e3swbwq7.jpg
   Is this just a charts problem or is something seriously wrong?

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[google-appengine] Model class of a Query instance?

2010-02-19 Thread Nickolas Daskalou

Is there an official way to get the Model class from a Query instance? I
had a look through the online docs and couldn't find anything.

In the SDK code however, the Model class of a Query instance can be
retrieved from the _model_class attribute of the Query instance, eg:

q = MyModel.all()

model_class = q._model_class # == MyModel

I don't really want to do it this way because since this is not documented
anywhere, I'm afraid that this implementation may change in the future.

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Re: [google-appengine] Re: Question on key design: Datastore errors and tablets

On Fri, Feb 19, 2010 at 12:28 AM, peterk peter.ke...@gmail.com wrote:

What about keynames like:

counter_standard_dbf
counter_standard_clo

or would something like

dbfo01la_counter_standard
clo091b_counter_standard

work better?

I'm thinking of cases where you may use keynames that can in some way
be constructed/predicted for fast access later.
like..username_counter_standard

Would the common pre-fix or post-fix make for close distribution? :|

Either one will work fine - Bigtable will split tablets based on key to
ensure no tablet gets too big. Long identical prefixes just mean that the
split will be based on later characters in the string.

What's important for key distribution for really high update rates is the
distribution of key names/IDs for those updates: If they all go to a single
tablet (eg, they make up a small proportion of the total range of IDs you're
employing), they will be limited by what that tablet server can support. If
they are widely spread out within the range you're using, regardless of what
that range is, you'll be fine.

-Nick Johnson

On Feb 18, 5:59 pm, Nick Johnson (Google) nick.john...@google.com
wrote:
Hi Eli,

Using a randomly generated ID like a uuid is perfectly satisfactory to
achieve an even distribution.

On Wed, Feb 17, 2010 at 7:02 PM, Eli Jones eli.jo...@gmail.com wrote:
I understand the process of evenly distributing IDs since they are
Integer
values.. is there a canonized appengine way to evenly distribute
key_names?

Just make sure key_name1 and key_name2 don't have their i-th letters
too
close too eachother? How far is far enough?

Does doing even distribution matter if you aren't using auto-generated
IDs?

It certainly can - if you insert, in order, , aaab, aaac, etc,
you'll encounter the same problem at very high volumes as you'd see with
auto generated IDs.

-Nick Johnson

Thanks for information.

On Wed, Feb 17, 2010 at 1:32 PM, Nick Johnson (Google)
nick.john...@google.com wrote:

Hi Ulrich,

On Wed, Feb 17, 2010 at 5:30 PM, Ulrich mierendo...@googlemail.com
wrote:

Hi,

I have read the following
Timeouts due to datastore issues --- [...] The most common example
of
this occurs when you are rapidly inserting a large number of entities
of the same kind, with auto-generated IDs. In this case, most inserts
hit the same range of the same tablet, and the single tablet server
is
overwhelmed with writes. [...] If this does affect your app, the
easiest solution is to use more evenly distributed IDs instead of the
auto-allocated ones [...]
(

http://code.google.com/appengine/articles/handling_datastore_errors.html
)

Let's say I am having a model Parent and a model Child. For
Parent
entities, I use key names that are evenly distributed. For Child
entities, I use auto-generated key IDs and _no_ key names, but all
Child entities are children of Parent entities, so the paths to the
children contain the evenly distributes key names of the parents.
If I have many write operations on children that are in the same
entity group, the described error could occur. But what happens if my
write operations are on children that are in different entity groups?
Their IDs are auto-generated and not evenly distributed, but their
paths contain the evenly distributed key names.

Good question! The point being made in the article refers to the
global
distribution of the complete key, so writes to these children will be
well
distributed, and you won't have to worry about this source of
contention.

-Nick Johnson

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Number:
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[google-appengine] Re: MMS to Email Gateway failures

2010-02-19 Thread A1programmer

This is still not working.

I may also point out that when I do get emails that are sent from app
engine, to me phone as SMS, they are from a huge string, like so:

3-
yf9swuod0qgjsotigskxxoloi.iusjkxxoiq.yosvyutmsgor@apphosting.bounces.google.com

Therefore, I think this is something that Google needs to fix,
including fixing SPF records (or whatever).  It would be nice if the
email actually appeared to be from who's sending it.

- Derrick

On Feb 17, 10:25 pm, Andrew Chilton andychil...@gmail.com wrote:
 Hi Derrick,

 On 18 February 2010 10:20, A1programmer derrick.simp...@gmail.com wrote:

  [snip]
  Does anyone have any idea why this may be, or can offer suggestions?
  As it looks now, if I can get this to work nicely on another platform,
  I'm going to have to move my stuff off of my GAE (paid account).

 Might this 
 help?http://www.google.com/support/a/bin/answer.py?hl=enanswer=33786

 It might help it look less like spam (if indeed that is what is happening).

 Cheers,
 Andy

 --
 contact: Andrew Chilton
 website:http://www.chilts.org/blog/

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[google-appengine] Re: Question on key design: Datastore errors and tablets

2010-02-19 Thread peterk

Thanks Nick, I understand now. So I guess the easiest thing to do is
to have a random component in your keynames...at least for apps I'm
considering I don't think I'd have any other way to reasonably ensure
the range of keynames in a given (batch) update were well distributed.

On Feb 19, 11:58 am, Nick Johnson (Google) nick.john...@google.com
wrote:
 On Fri, Feb 19, 2010 at 12:28 AM, peterk peter.ke...@gmail.com wrote:
  What about keynames like:

  counter_standard_dbf
  counter_standard_clo

  or would something like

  dbfo01la_counter_standard
  clo091b_counter_standard

  work better?

  I'm thinking of cases where you may use keynames that can in some way
  be constructed/predicted for fast access later.
  like..username_counter_standard

  Would the common pre-fix or post-fix make for close distribution? :|

 Either one will work fine - Bigtable will split tablets based on key to
 ensure no tablet gets too big. Long identical prefixes just mean that the
 split will be based on later characters in the string.

 What's important for key distribution for really high update rates is the
 distribution of key names/IDs for those updates: If they all go to a single
 tablet (eg, they make up a small proportion of the total range of IDs you're
 employing), they will be limited by what that tablet server can support. If
 they are widely spread out within the range you're using, regardless of what
 that range is, you'll be fine.

 -Nick Johnson







  On Feb 18, 5:59 pm, Nick Johnson (Google) nick.john...@google.com
  wrote:
   Hi Eli,

   Using a randomly generated ID like a uuid is perfectly satisfactory to
   achieve an even distribution.

   On Wed, Feb 17, 2010 at 7:02 PM, Eli Jones eli.jo...@gmail.com wrote:
I understand the process of evenly distributing IDs since they are
  Integer
values.. is there a canonized appengine way to evenly distribute
  key_names?

Just make sure key_name1 and key_name2 don't have their i-th letters
  too
close too eachother? How far is far enough?

Does doing even distribution matter if you aren't using auto-generated
  IDs?

   It certainly can - if you insert, in order, , aaab, aaac, etc,
   you'll encounter the same problem at very high volumes as you'd see with
   auto generated IDs.

   -Nick Johnson

Thanks for information.

On Wed, Feb 17, 2010 at 1:32 PM, Nick Johnson (Google) 
nick.john...@google.com wrote:

Hi Ulrich,

On Wed, Feb 17, 2010 at 5:30 PM, Ulrich mierendo...@googlemail.com
  wrote:

Hi,

I have read the following
Timeouts due to datastore issues --- [...] The most common example
  of
this occurs when you are rapidly inserting a large number of entities
of the same kind, with auto-generated IDs. In this case, most inserts
hit the same range of the same tablet, and the single tablet server
  is
overwhelmed with writes. [...] If this does affect your app, the
easiest solution is to use more evenly distributed IDs instead of the
auto-allocated ones  [...]
(

 http://code.google.com/appengine/articles/handling_datastore_errors.html
)

Let's say I am having a model Parent and a model Child. For
  Parent
entities, I use key names that are evenly distributed. For Child
entities, I use auto-generated key IDs and _no_ key names, but all
Child entities are children of Parent entities, so the paths to the
children contain the evenly distributes key names of the parents.
If I have many write operations on children that are in the same
entity group, the described error could occur. But what happens if my
write operations are on children that are in different entity groups?
Their IDs are auto-generated and not evenly distributed, but their
paths contain the evenly distributed key names.

Good question! The point being made in the article refers to the
  global
distribution of the complete key, so writes to these children will be
  well
distributed, and you won't have to worry about this source of
  contention.

-Nick Johnson

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  Number:
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Re: [google-appengine] Re: Question on key design: Datastore errors and tablets

Hi Peter,

On Fri, Feb 19, 2010 at 1:04 PM, peterk peter.ke...@gmail.com wrote:

Thanks Nick, I understand now. So I guess the easiest thing to do is
to have a random component in your keynames...at least for apps I'm
considering I don't think I'd have any other way to reasonably ensure
the range of keynames in a given (batch) update were well distributed.

Bear in mind that you only have to even worry about this if you're expecting
hundreds of QPS of inserts to the same model.

If you are in this situation, hashing some stable information from your
model may be sufficient to generate a well distributed key name.

-Nick Johnson

On Feb 19, 11:58 am, Nick Johnson (Google) nick.john...@google.com
wrote:
On Fri, Feb 19, 2010 at 12:28 AM, peterk peter.ke...@gmail.com wrote:
What about keynames like:

counter_standard_dbf
counter_standard_clo

or would something like

dbfo01la_counter_standard
clo091b_counter_standard

work better?

I'm thinking of cases where you may use keynames that can in some way
be constructed/predicted for fast access later.
like..username_counter_standard

Would the common pre-fix or post-fix make for close distribution? :|

What's important for key distribution for really high update rates is the
distribution of key names/IDs for those updates: If they all go to a
single
tablet (eg, they make up a small proportion of the total range of IDs
you're
employing), they will be limited by what that tablet server can support.
If
they are widely spread out within the range you're using, regardless of
what
that range is, you'll be fine.

-Nick Johnson

On Feb 18, 5:59 pm, Nick Johnson (Google) nick.john...@google.com
wrote:
Hi Eli,

Using a randomly generated ID like a uuid is perfectly satisfactory
to
achieve an even distribution.

On Wed, Feb 17, 2010 at 7:02 PM, Eli Jones eli.jo...@gmail.com
wrote:
I understand the process of evenly distributing IDs since they are
Integer
values.. is there a canonized appengine way to evenly distribute
key_names?

Just make sure key_name1 and key_name2 don't have their i-th
letters
too
close too eachother? How far is far enough?

Does doing even distribution matter if you aren't using
auto-generated
IDs?

It certainly can - if you insert, in order, , aaab, aaac,
etc,
you'll encounter the same problem at very high volumes as you'd see
with
auto generated IDs.

-Nick Johnson

Thanks for information.

On Wed, Feb 17, 2010 at 1:32 PM, Nick Johnson (Google)
nick.john...@google.com wrote:

Hi Ulrich,

On Wed, Feb 17, 2010 at 5:30 PM, Ulrich
mierendo...@googlemail.com
wrote:

Hi,

I have read the following
Timeouts due to datastore issues --- [...] The most common
example
of
this occurs when you are rapidly inserting a large number of
entities
of the same kind, with auto-generated IDs. In this case, most
inserts
hit the same range of the same tablet, and the single tablet
server
is
overwhelmed with writes. [...] If this does affect your app, the
easiest solution is to use more evenly distributed IDs instead of
the
auto-allocated ones [...]
(

http://code.google.com/appengine/articles/handling_datastore_errors.html
)

Let's say I am having a model Parent and a model Child. For
Parent
entities, I use key names that are evenly distributed. For Child
entities, I use auto-generated key IDs and _no_ key names, but
all
Child entities are children of Parent entities, so the paths to
the
children contain the evenly distributes key names of the parents.
If I have many write operations on children that are in the same
entity group, the described error could occur. But what happens
if my
write operations are on children that are in different entity
groups?
Their IDs are auto-generated and not evenly distributed, but
their
paths contain the evenly distributed key names.

Good question! The point being made in the article refers to the
global
distribution of the complete key, so writes to these children will
be
well
distributed, and you won't have to worry about this source of
contention.

-Nick Johnson

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[google-appengine] Error while deleting a version

2010-02-19 Thread Satya

My App Id is teluguobserver

Presently I have 2 versions of code deployed. Version 2 and 3.

When I am trying to delete the version 2, I am getting server error
without any details.
Server Error
A server error has occurred.

Please help me in deleting this version.

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[google-appengine] Re: Question on key design: Datastore errors and tablets

2010-02-19 Thread peterk

Say I did a batch update of 500 entities all of the same model...could
this breach the '100s of qps' requirement that could lead to tablets
getting too hot? I've seen benches (http://blog.dantup.com/pi/
bm_put_perf.png) that show 500 entities being batch put in ~4s which
suggests an average put rate that might be in the 100+ per second in
such a case.

Or would that be 'ok'? :) I'm guessing if I were in a situation where
multiple such batch updates could be occurring simultaneously or in a
tight timeframe, then I'd be more likely to run into this...depending
on how busy my app became, I'd possibly need to start doing that (i.e.
lots of such large batch updates happening in short timeframes).


On Feb 19, 1:12 pm, Nick Johnson (Google) nick.john...@google.com
wrote:
 Hi Peter,

 On Fri, Feb 19, 2010 at 1:04 PM, peterk peter.ke...@gmail.com wrote:
  Thanks Nick, I understand now. So I guess the easiest thing to do is
  to have a random component in your keynames...at least for apps I'm
  considering I don't think I'd have any other way to reasonably ensure
  the range of keynames in a given (batch) update were well distributed.

 Bear in mind that you only have to even worry about this if you're expecting
 hundreds of QPS of inserts to the same model.

 If you are in this situation, hashing some stable information from your
 model may be sufficient to generate a well distributed key name.

 -Nick Johnson





  On Feb 19, 11:58 am, Nick Johnson (Google) nick.john...@google.com
  wrote:
   On Fri, Feb 19, 2010 at 12:28 AM, peterk peter.ke...@gmail.com wrote:
What about keynames like:

counter_standard_dbf
counter_standard_clo

or would something like

dbfo01la_counter_standard
clo091b_counter_standard

work better?

I'm thinking of cases where you may use keynames that can in some way
be constructed/predicted for fast access later.
like..username_counter_standard

Would the common pre-fix or post-fix make for close distribution? :|

   Either one will work fine - Bigtable will split tablets based on key to
   ensure no tablet gets too big. Long identical prefixes just mean that the
   split will be based on later characters in the string.

   What's important for key distribution for really high update rates is the
   distribution of key names/IDs for those updates: If they all go to a
  single
   tablet (eg, they make up a small proportion of the total range of IDs
  you're
   employing), they will be limited by what that tablet server can support.
  If
   they are widely spread out within the range you're using, regardless of
  what
   that range is, you'll be fine.

   -Nick Johnson

On Feb 18, 5:59 pm, Nick Johnson (Google) nick.john...@google.com
wrote:
 Hi Eli,

 Using a randomly generated ID like a uuid is perfectly satisfactory
  to
 achieve an even distribution.

 On Wed, Feb 17, 2010 at 7:02 PM, Eli Jones eli.jo...@gmail.com
  wrote:
  I understand the process of evenly distributing IDs since they are
Integer
  values.. is there a canonized appengine way to evenly distribute
key_names?

  Just make sure key_name1 and key_name2 don't have their i-th
  letters
too
  close too eachother? How far is far enough?

  Does doing even distribution matter if you aren't using
  auto-generated
IDs?

 It certainly can - if you insert, in order, , aaab, aaac,
  etc,
 you'll encounter the same problem at very high volumes as you'd see
  with
 auto generated IDs.

 -Nick Johnson

  Thanks for information.

  On Wed, Feb 17, 2010 at 1:32 PM, Nick Johnson (Google) 
  nick.john...@google.com wrote:

  Hi Ulrich,

  On Wed, Feb 17, 2010 at 5:30 PM, Ulrich 
  mierendo...@googlemail.com
wrote:

  Hi,

  I have read the following
  Timeouts due to datastore issues --- [...] The most common
  example
of
  this occurs when you are rapidly inserting a large number of
  entities
  of the same kind, with auto-generated IDs. In this case, most
  inserts
  hit the same range of the same tablet, and the single tablet
  server
is
  overwhelmed with writes. [...] If this does affect your app, the
  easiest solution is to use more evenly distributed IDs instead of
  the
  auto-allocated ones  [...]
  (

 http://code.google.com/appengine/articles/handling_datastore_errors.html
  )

  Let's say I am having a model Parent and a model Child. For
Parent
  entities, I use key names that are evenly distributed. For Child
  entities, I use auto-generated key IDs and _no_ key names, but
  all
  Child entities are children of Parent entities, so the paths to
  the
  children contain the evenly distributes key names of the parents.
  If I have many write operations on children that are in the same
  entity group, the described error could occur. But what happens
  if my
  write operations are on children that

Re: [google-appengine] Model class of a Query instance?

2010-02-19 Thread Nickolas Daskalou

Hi Nick,

I have something like this:


class Foo(db.Model):
  name = db.StringProperty()
  ...

class Bar(db.Model):
  foo = db.ReferenceProperty(Foo, collection_name='bars')
  foo_name = db.StringProperty()

class Baz(db.Model):
  foo = db.ReferenceProperty(Foo, collection_name='bazs')
  foo_name = db.StringProperty()


I have added a hook in my application which calls a post_put() method on all
instances that are put() into the Datastore (after they are put, obviously).

In the post_put() of a Foo entity, I want to get all reverse referenced
Bar and Baz entities, and update their foo_name with the Foo entity's name.
However, I only need to update the Bar and Baz entities who's foo_name value
!= the Foo entity's name. So I could do something like:


class Foo(db.Model):
  ...
  def post_put():
for collection_name in ('bars', 'bazs'):
  q = getattr(self, collection_name)
  q.filter('foo_name !=', self.name)
  # Fetch, then update.


This works fine, except I need to add a new index each time I do this, since
q has two filters, one equality (an implied filter('foo =', self)) and one
inequality.

Instead, I would like to get the Model class associated with each
collection_name and just add one inequality filter, ie:


class Foo(db.Model):
  ...
  def post_put():
for collection_name in ('bars', 'bazs'):
  model_class = self.get_model_class_for_collection(collection_name)
  q = model_class.all().filter('foo_name !=', self.name)
  # Fetch, then update.
  def get_model_class_for_collection(collection_name):
q = getattr(self, collection_name)
return q.model_class() # This is the Query method I want


This way I do not need to create a new index each time I do this.

Can you suggest a similar no-new-index way of doing this?

I also thought about doing this (only get_model_class_for_collection() has
changed):


class Foo(db.Model):
  ...
  def post_put():
for collection_name in ('bars','bazs'):
  model_class = self.get_model_class_for_collection(collection_name)
  q = model_class.all().filter('foo_name !=', self.name)
  # Fetch, then update.
  def get_model_class_for_collection(collection_name):
q = getattr(self, collection_name)
entity = g.get()
return entity.__class__


Forgetting about the extra Datastore get() required, the method above could
cause problems when it comes to PolyModel entities, because (correct me if I
am wrong) when PolyModel entities come back from the Datastore they are
instances of the deepest subclass in the entity's inheritance chain, so
returning entity.__class__ (in the last line above) will limit the results
of the query (with the single inequality filter) to entity's of the original
entity's PolyModel subclass. I hope that makes sense.

Nick, I would love to get your ideas on this. Also, I'm no Python expert so
if I'm overcomplicating things please let me know.

Cheers,

Nick


On 19 February 2010 22:50, Nick Johnson (Google) nick.john...@google.comwrote:

 Hi Nickolas,

 There's no public interface for this. Why do you need to do it?

 -Nick Johnson

 On Fri, Feb 19, 2010 at 11:28 AM, Nickolas Daskalou n...@daskalou.comwrote:

 Is there an official way to get the Model class from a Query instance? I
 had a look through the online docs and couldn't find anything.

 In the SDK code however, the Model class of a Query instance can be
 retrieved from the _model_class attribute of the Query instance, eg:

 q = MyModel.all()
 
 model_class = q._model_class # == MyModel

 I don't really want to do it this way because since this is not documented
 anywhere, I'm afraid that this implementation may change in the future.

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Re: [google-appengine] Problems with my AppEngine Account

2010-02-19 Thread Guido Kämper

Hi Ikai,

i deaktivated the account in the meanwhile, but I decided to give it a
further chance and re-registered today. But it's still the same:
* I can create an application, but afterwards I don't see it in the
apps list. eg. exclamation-iphone

I already reset the IP address of my domain to point to the server, I
used before. I wanted to use Google app-engine, because I wanted to
have a well scaling homepage. But all in all I probably won't use it,
as it is not even possible for me to upload the app..

thank you,
Guido

Am 17.02.2010 um 22:46 schrieb Ikai L (Google):

Guido, are you still having issues with this?

2010/2/12 Guido Kämper g...@spreadshirt.net
Hello,

I have a serious problem with my app engine account. Seems to be
related to rights management issues or login problems.

I added one application without problems, I could upload it using
appcfg.sh update

But now I made some changes at the domain and added the application
to Google Apps. First I got redirect errors, when accessing the
Appengine portal - these problems somehow got solved. The app works
as expected,it is now available at www.exclamation.de.

But: I am not allowed to update the application with further
versions. Output:

403 Forbidden
You do not have permission to modify this app (app_id=u'exclam123').

And: If I add a new application, I get the message, that I don't
have access to the new application, and it does not show up in the
applications overview. But the count of available applications (10
at account creation) was decreased by 1.

I am writing from my second email address, as the MX records of my
primary email address is currently changing to google mail.
Unfortunately I already wrote the group admin of this group, because
I could not find any contact information for server problems.

Is anyone in this group able to help me with my problems? The
account is gk(at)exclamation.de

Or can anyone give me a contact info of the google administration?

thank you very much,
Guido

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[google-appengine] must i install Visual Studio for python ssl module?

2010-02-19 Thread saintthor

for ssl module, i downloaded ssl-1.15.tar.gz from 
http://pypi.python.org/pypi/ssl.
but it is source, no exe file. i tried to install it, message as
below.

D:\Python25\ssl-1.15setup.py install
running install
running build
running build_py
running build_ext
building 'ssl._ssl2' extension
error: Python was built with Visual Studio version 7.1, and extensions
need to b
e built with the same version of the compiler, but it isn't installed.

where can i get a exe file or how can i install this module in other
way?

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Re: [google-appengine] Model class of a Query instance?

Hi Nickolas,

On Fri, Feb 19, 2010 at 2:14 PM, Nickolas Daskalou n...@daskalou.comwrote:

 Hi Nick,

 I have something like this:


 class Foo(db.Model):
   name = db.StringProperty()
   ...

 class Bar(db.Model):
   foo = db.ReferenceProperty(Foo, collection_name='bars')
   foo_name = db.StringProperty()

 class Baz(db.Model):
   foo = db.ReferenceProperty(Foo, collection_name='bazs')
   foo_name = db.StringProperty()


 I have added a hook in my application which calls a post_put() method on
 all instances that are put() into the Datastore (after they are put,
 obviously).

 In the post_put() of a Foo entity, I want to get all reverse referenced
 Bar and Baz entities, and update their foo_name with the Foo entity's name.
 However, I only need to update the Bar and Baz entities who's foo_name value
 != the Foo entity's name.


Will this be an all-or-nothing proposition? Eg, if the put of 'foo' changed
the foo_name, they'll all need updating, otherwise none of them will? In
that case, you'd be better off checking if it's changed, and updating them
all (without the inequality filter) if it did change.


 So I could do something like:


 class Foo(db.Model):
   ...
   def post_put():
 for collection_name in ('bars', 'bazs'):
   q = getattr(self, collection_name)
   q.filter('foo_name !=', self.name)
   # Fetch, then update.


 This works fine, except I need to add a new index each time I do this,
 since q has two filters, one equality (an implied filter('foo =', self))
 and one inequality.

 Instead, I would like to get the Model class associated with each
 collection_name and just add one inequality filter, ie:


 class Foo(db.Model):
   ...
   def post_put():
 for collection_name in ('bars', 'bazs'):
   model_class = self.get_model_class_for_collection(collection_name)
   q = model_class.all().filter('foo_name !=', self.name)
   # Fetch, then update.
   def get_model_class_for_collection(collection_name):
 q = getattr(self, collection_name)
 return q.model_class() # This is the Query method I want


 This way I do not need to create a new index each time I do this.


The above will change every single Bar and Baz entity that doesn't match
foo's entity name, though, including those that have nothing to do with the
foo you modified.



 Can you suggest a similar no-new-index way of doing this?


Depending on how many Bar and Baz entities there are per Foo, you could just
drop the inequality and filter them out once they're fetched.



 I also thought about doing this (only get_model_class_for_collection() has
 changed):


 class Foo(db.Model):
   ...
   def post_put():
 for collection_name in ('bars','bazs'):
   model_class = self.get_model_class_for_collection(collection_name)
   q = model_class.all().filter('foo_name !=', self.name)
   # Fetch, then update.
   def get_model_class_for_collection(collection_name):
 q = getattr(self, collection_name)
 entity = g.get()
 return entity.__class__


Given that you're already hard-coding in the list of collections, you could
avoid the need for a 'get_model_class_for_collection' method by replacing
the loop with:

for model_class in (Bar, Baz):



 Forgetting about the extra Datastore get() required, the method above could
 cause problems when it comes to PolyModel entities, because (correct me if I
 am wrong) when PolyModel entities come back from the Datastore they are
 instances of the deepest subclass in the entity's inheritance chain, so
 returning entity.__class__ (in the last line above) will limit the results
 of the query (with the single inequality filter) to entity's of the original
 entity's PolyModel subclass. I hope that makes sense.

 Nick, I would love to get your ideas on this. Also, I'm no Python expert so
 if I'm overcomplicating things please let me know.

 Cheers,

 Nick


 On 19 February 2010 22:50, Nick Johnson (Google) 
 nick.john...@google.comwrote:

 Hi Nickolas,

 There's no public interface for this. Why do you need to do it?

 -Nick Johnson

 On Fri, Feb 19, 2010 at 11:28 AM, Nickolas Daskalou n...@daskalou.comwrote:

 Is there an official way to get the Model class from a Query
 instance? I had a look through the online docs and couldn't find anything.

 In the SDK code however, the Model class of a Query instance can be
 retrieved from the _model_class attribute of the Query instance, eg:

 q = MyModel.all()
 
 model_class = q._model_class # == MyModel

 I don't really want to do it this way because since this is not
 documented anywhere, I'm afraid that this implementation may change in the
 future.

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Re: [google-appengine] Re: Question on key design: Datastore errors and tablets

Hi peterk,

On Fri, Feb 19, 2010 at 2:02 PM, peterk peter.ke...@gmail.com wrote:

 Say I did a batch update of 500 entities all of the same model...could
 this breach the '100s of qps' requirement that could lead to tablets
 getting too hot? I've seen benches (http://blog.dantup.com/pi/
 bm_put_perf.png) that show 500 entities being batch put in ~4s which
 suggests an average put rate that might be in the 100+ per second in
 such a case.


Only if you're doing such puts at a high rate. It's the sustained rate that
matters, not the instantaneous rate.

-Nick Johnson



 Or would that be 'ok'? :) I'm guessing if I were in a situation where
 multiple such batch updates could be occurring simultaneously or in a
 tight timeframe, then I'd be more likely to run into this...depending
 on how busy my app became, I'd possibly need to start doing that (i.e.
 lots of such large batch updates happening in short timeframes).


 On Feb 19, 1:12 pm, Nick Johnson (Google) nick.john...@google.com
 wrote:
  Hi Peter,
 
  On Fri, Feb 19, 2010 at 1:04 PM, peterk peter.ke...@gmail.com wrote:
   Thanks Nick, I understand now. So I guess the easiest thing to do is
   to have a random component in your keynames...at least for apps I'm
   considering I don't think I'd have any other way to reasonably ensure
   the range of keynames in a given (batch) update were well distributed.
 
  Bear in mind that you only have to even worry about this if you're
 expecting
  hundreds of QPS of inserts to the same model.
 
  If you are in this situation, hashing some stable information from your
  model may be sufficient to generate a well distributed key name.
 
  -Nick Johnson
 
 
 
 
 
   On Feb 19, 11:58 am, Nick Johnson (Google) nick.john...@google.com
   wrote:
On Fri, Feb 19, 2010 at 12:28 AM, peterk peter.ke...@gmail.com
 wrote:
 What about keynames like:
 
 counter_standard_dbf
 counter_standard_clo
 
 or would something like
 
 dbfo01la_counter_standard
 clo091b_counter_standard
 
 work better?
 
 I'm thinking of cases where you may use keynames that can in some
 way
 be constructed/predicted for fast access later.
 like..username_counter_standard
 
 Would the common pre-fix or post-fix make for close distribution?
 :|
 
Either one will work fine - Bigtable will split tablets based on key
 to
ensure no tablet gets too big. Long identical prefixes just mean that
 the
split will be based on later characters in the string.
 
What's important for key distribution for really high update rates is
 the
distribution of key names/IDs for those updates: If they all go to a
   single
tablet (eg, they make up a small proportion of the total range of IDs
   you're
employing), they will be limited by what that tablet server can
 support.
   If
they are widely spread out within the range you're using, regardless
 of
   what
that range is, you'll be fine.
 
-Nick Johnson
 
 On Feb 18, 5:59 pm, Nick Johnson (Google) 
 nick.john...@google.com
 wrote:
  Hi Eli,
 
  Using a randomly generated ID like a uuid is perfectly
 satisfactory
   to
  achieve an even distribution.
 
  On Wed, Feb 17, 2010 at 7:02 PM, Eli Jones eli.jo...@gmail.com
   wrote:
   I understand the process of evenly distributing IDs since they
 are
 Integer
   values.. is there a canonized appengine way to evenly
 distribute
 key_names?
 
   Just make sure key_name1 and key_name2 don't have their i-th
   letters
 too
   close too eachother? How far is far enough?
 
   Does doing even distribution matter if you aren't using
   auto-generated
 IDs?
 
  It certainly can - if you insert, in order, , aaab,
 aaac,
   etc,
  you'll encounter the same problem at very high volumes as you'd
 see
   with
  auto generated IDs.
 
  -Nick Johnson
 
   Thanks for information.
 
   On Wed, Feb 17, 2010 at 1:32 PM, Nick Johnson (Google) 
   nick.john...@google.com wrote:
 
   Hi Ulrich,
 
   On Wed, Feb 17, 2010 at 5:30 PM, Ulrich 
   mierendo...@googlemail.com
 wrote:
 
   Hi,
 
   I have read the following
   Timeouts due to datastore issues --- [...] The most common
   example
 of
   this occurs when you are rapidly inserting a large number of
   entities
   of the same kind, with auto-generated IDs. In this case, most
   inserts
   hit the same range of the same tablet, and the single tablet
   server
 is
   overwhelmed with writes. [...] If this does affect your app,
 the
   easiest solution is to use more evenly distributed IDs
 instead of
   the
   auto-allocated ones  [...]
   (
 
  
 http://code.google.com/appengine/articles/handling_datastore_errors.html
   )
 
   Let's say I am having a model Parent and a model Child.
 For
 Parent
   entities, I use key names that are evenly distributed. For
 Child
   entities, I use auto-generated key

[google-appengine] Local datastore is slow once loaded up, any suggestions?

2010-02-19 Thread obvious

I've loaded up a local datastore with 40,000+ entries.  Unfortunately,
recalling any data from it at all is very slow on my fairly new
Macbook Pro.  Any suggestions on speeding things up, short of buying a
new piece of hardware?

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Re: [google-appengine] Local datastore is slow once loaded up, any suggestions?

Hi,

Unfortunately, the App Engine SDK datastore isn't really designed for
testing with such a large amount of data. You should try testing with a much
smaller dataset, if that's remotely possible.

-Nick Johnson


On Fri, Feb 19, 2010 at 5:19 PM, obvious c...@obviousdiversion.com wrote:

 I've loaded up a local datastore with 40,000+ entries.  Unfortunately,
 recalling any data from it at all is very slow on my fairly new
 Macbook Pro.  Any suggestions on speeding things up, short of buying a
 new piece of hardware?

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Re: [google-appengine] Re: Lucene/Compass

2010-02-19 Thread Patrick Twohig

I run it in my app that's on the App Engine right now, app's in staging so
I have it blocked off to people not in my domain. Shay Banon has a video
clip of it running on his blog, and then I submitted a patch to the compass
project that prevents transactions from butting heads when writing the index
to the datastore. I've seen it working with mine own two eyes, as they
say. It's also listed as working in the will it play in app engine
page. Unfortunately, I'm concerned about the scalability of it. It seems
to take quite a while to index a single object and every so often the search
index gets corrupted because a request to index an object gets shut down by
a deadline exceeded exception. I try to recover by rolling back the work in
progress and releasing all locks, but the request still gets terminated
before that can happen. This is with 4-5 users using it just to do
testing/tuning of the app. I can't imagine how it would work under any
actual load. It's also using quite a bit of CPU usage.

On Wed, Feb 17, 2010 at 7:21 AM, uo yon...@googlemail.com wrote:

I too encountered challenges and I still cante believe anyone runs
compass on gae... on close inspection of some of the core compass
classes like org.compass.core.Compass implements
javax.naming.referenceable which isnt in Google's whitelist.

On Feb 16, 3:33 am, Patrick Twohig patr...@namazustudios.com wrote:
Yeah. I know. The beta version of Compass supports GAE

On Mon, Feb 15, 2010 at 1:13 AM, Tonny 12br...@gmail.com wrote:
Not having access to the file system on GAE will prevent you from
using the out-of-the-box Lucene Index implementations (which uses the
filesystem).

On Feb 13, 12:40 am, Patrick Twohig patr...@namazustudios.com wrote:
I was curious if anybody is using Lucene and Compass and how well it
works
in the app engine. I've seen some other posts indicating that it
actually
manages to handle quite a bit of data, but I was curious if anybody
else
out
there could attest to how well it works.

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Re: [google-appengine] Protobuf Version on GAE

Hi Davide,

The Protocol Buffers we use on App Engine are built using a different
version of the Protocol Buffer library to the one that was open sourced. If
you want to use Protocol Buffers yourself, you'll need to include the
library with your app.

-Nick Johnson

On Thu, Feb 18, 2010 at 2:44 PM, Davide Cerbo davidece...@gmail.com wrote:

Hi everyone,

someone use Google Protobuf on GAE? And know what version is installed? I
have deploy a project that use it and I have the follow exception:

java.lang.NoSuchMethodError:
com.google.protobuf.Descriptors$FileDescriptor.internalBuildGeneratedFileFrom(Ljava/lang/String;[Lcom/google/protobuf/Descriptors$FileDescriptor;Lcom/google/protobuf/Descriptors$FileDescriptor$InternalDescriptorAssigner;)V

Searching around the web I've found that is a problem of version. I use
version 2.2.0 while GAE doesn't use it :(

I have deployed it with my WAR but it is ignored.

Someone can tell me what version user GAE?

Thanks in advance.

Davide

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Re: [google-appengine] implementing asynchronous http in java

2010-02-19 Thread Conor Power

apologies if I'm a little vague in my reply but I remember receiving
something similar when I first started using the URLFetchService and I think
it was related to the fact that I had imported the incorrect classes for
HTTPRequest or header or something like like. I think I just chose the first
one offered to me by the IDE ...

It was a while ago so I hope I'm not sending you on a wild goose chase.


On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 
david.jonathan.nel...@gmail.com wrote:

 Hi,

 I'm trying to implement async http in java.  Here is the important
 part of the code:

for (String urlString : urls)
{
// TODO: try and get rid of these two heap
 allocations
url = new URL(urlString);
request = new HTTPRequest(url);
request.addHeader(userAgentHeader);
request.addHeader(authorizationHeader);
request.addHeader(acceptEncodingHeader);
request.addHeader(acceptCharsetHeader);


 responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(request));
apiCallsMade++;
}
for (FutureHTTPResponse futureResponse :
 responses)
{
parseResponse(new
 String(futureResponse.get().getContent()));
}

 I keep getting this error:  com.google.apphosting.api.ApiProxy
 $CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
 was not found..  I looked around for any jars that were missing from
 the classpath but didn't see anything missing.  Do you know which jar
 that code is in?  I googled the error and also searched through this
 group but found nothing.

 Thanks,
 David

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[google-appengine] Datastore Viewer gql query problem

2010-02-19 Thread Stefano

Hi everybody,

frow a few days a simply gql query such as this one will throw an
exception.
SELECT * FROM Station order by synced

Synced it's just a not null timestamp field.

Since it's happening in the admin panel I don't have any log
explaining why it's not working anymore.

https://appengine.google.com/datastore/explorer?submitted=1app_id=prezzi-benzinaviewby=gqlkind=Stationquery=SELECT+*+FROM+Station+order+by+synced

Stefano

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[google-appengine] problem with working on google app engine

2010-02-19 Thread Bhavana

i have installed my google app engine and did a program of hello
world,but while i am making changes on this during run time no changes
is reflected and i am getting the same output as previous..please help
me out

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[google-appengine] Documentation contribution

2010-02-19 Thread Alexander Orlov

I'd like to add an important detail to 
http://code.google.com/appengine/docs/java/config/cron.html
How can I do it? I haven't found any accessible SVN/Wiki version of
this page.

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[google-appengine] Datastore Statistics page not updating (over 3 days now)

Is there a backlog on getting Datastore Statistics calculated?

When I go to the Datastore Statistics page for my application, it
indicates that Last Updated = 3 days, 3:35:42 ago

Which is accurate since there are no stats for entities or Models created
since then.

Is anyone else having this issue or am I the only lucky one?

IF this is not related to the Maintenance performed earlier this week, then
it could be related to the fact that I generated a new Model with ALOT of
new entities (around 500,000) the night before Maintenance .. so much so
that my Total Stored Data jumped from .03 to .27 GB (granted, all of the
properties on the entities are Indexed=False).

Could the addition of so much new data make Statistics take a long time to
update?

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[google-appengine] Re: Problems with my AppEngine Account

2010-02-19 Thread Wooble

Try logging in at http://appengine.google.com/a/spreadshirt.net

On Feb 19, 10:03 am, Guido Kämper g...@spreadshirt.net wrote:
 Hi Ikai,

 i deaktivated the account in the meanwhile, but I decided to give it a  
 further chance and re-registered today. But it's still the same:
 * I can create an application, but afterwards I don't see it in the  
 apps list. eg. exclamation-iphone

 I already reset the IP address of my domain to point to the server, I  
 used before. I wanted to use Google app-engine, because I wanted to  
 have a well scaling homepage. But all in all I probably won't use it,  
 as it is not even possible for me to upload the app..

 thank you,
 Guido

 Am 17.02.2010 um 22:46 schrieb Ikai L (Google):



  Guido, are you still having issues with this?

  2010/2/12 Guido Kämper g...@spreadshirt.net
  Hello,

  I have a serious problem with my app engine account. Seems to be  
  related to rights management issues or login problems.

  I added one application without problems, I could upload it using  
  appcfg.sh update

  But now I made some changes at the domain and added the application  
  to Google Apps. First I got redirect errors, when accessing the  
  Appengine portal - these problems somehow got solved. The app works  
  as expected,it is now available atwww.exclamation.de.

  But: I am not allowed to update the application with further  
  versions. Output:
  403 Forbidden
  You do not have permission to modify this app (app_id=u'exclam123').

  And: If I add a new application, I get the message, that I don't  
  have access to the new application, and it does not show up in the  
  applications overview. But the count of available applications (10  
  at account creation) was decreased by 1.

  I am writing from my second email address, as the MX records of my  
  primary email address is currently changing to google mail.  
  Unfortunately I already wrote the group admin of this group, because  
  I could not find any contact information for server problems.

  Is anyone in this group able to help me with my problems? The  
  account is gk(at)exclamation.de

  Or can anyone give me a contact info of the google administration?

  thank you very much,
  Guido

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[google-appengine] Re: first app upload - blank page

2010-02-19 Thread ameyp

I'm having the same issue. I have three different scripts in the same
file, one which is mapped to /, one to /blog and one to /blog/
admin/
My app.yaml has the following handlers:

handlers:
- url: /static
  static_dir: static

- url: /favicon.ico
  static_files: static/favicon.ico
  upload: static/favicon.ico

- url: /about-me
  static_files: static/about-me.html
  upload: static/about-me.html

- url: /blog
  script: blog.py

- url: /blog/admin
  script: admin.py
  login: required

- url: /blog/admin/.*
  script: admin.py
  login: required

- url: /blog/.*
  script: blog.py

- url: /.*
  script: site.py

and site.py has:

class FrontPageHandler(webapp.RequestHandler):
def get(self):
self.response.out.write(
  html
body
  Hello
/body
  /html)

application = webapp.WSGIApplication(
[('/', FrontPageHandler)],
debug=True)

def main():
util.run_wsgi_app(application)

if __name__ == __main__:
main()

/ Works fine on local server, shows a blank page on appengine's
server. /blog and /blog/admin work fine. Please help, I've been going
at this for the past two hours :(

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[google-appengine] Google Data Store

2010-02-19 Thread Prasad

hi
I have just started to learn Google datastore. I am just doin one
small application as an experiment and tht needs a database and for
this reason I am using datastore. I just have a fundamental doubt.
Does for small application and few queries will need to pay. I mean is
it free and if yes how much i.e what is the limit? I read that it is
CPU time how is that calculated?

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[google-appengine] Google Data Store

2010-02-19 Thread Prasad

hi
I have just started to learn Google datastore. I am just doin one
small application as an experiment and tht needs a database and for
this reason I am using datastore. I just have a fundamental doubt.
Does for small application and few queries will need to pay. I mean is
it free and if yes how much i.e what is the limit? I read that it is
CPU time how is that calculated?

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[google-appengine] Re: Google Data Store

2010-02-19 Thread Wooble



On Feb 19, 1:35 pm, Prasad pra...@rediffmail.com wrote:
 hi
 I have just started to learn Google datastore. I am just doin one
 small application as an experiment and tht needs a database and for
 this reason I am using datastore. I just have a fundamental doubt.
 Does for small application and few queries will need to pay. I mean is
 it free and if yes how much i.e what is the limit? I read that it is
 CPU time how is that calculated?

If it's really a small application, it will almost certainly be
free.  If you don't enable billing, it's free regardless, you'd just
start hitting over quota exceptions once the quota was used up.  I
believe all of the free quotas are intended to work within the 1.3
million requests per day for typical applications.  IMO if you're
seeing a significant % of that you're probably outside of most
reasonable definitions of small. :)

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Re: [google-appengine] Documentation contribution

What's the detail? Create a new issue in our issues tracker and post the
link:

http://code.google.com/p/googleappengine/issues/list

On Thu, Feb 18, 2010 at 10:14 PM, Alexander Orlov alexander.or...@loxal.net
 wrote:

 I'd like to add an important detail to
 http://code.google.com/appengine/docs/java/config/cron.html
 How can I do it? I haven't found any accessible SVN/Wiki version of
 this page.

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[google-appengine] Re: pygooglechart

Yes in your PC - follow the instructions of the library for that.
Later on I will take a look at the library my self.


On Feb 19, 1:09 pm, Massimiliano massimiliano.pietr...@gmail.com
wrote:
 Sure you can after installing the library on my PC?

 2010/2/19 nickmilon nickmi...@gmail.com





  Sure you can after installing the library and including the files in
  your application provided this library does not depend on anything but
  python.
  Also since data passing mechanism for google visualization api is
  quite easy to implement in python you can avoid the burden of one more
  import and write your own interface.
  For an example of using visualization api from gae you can take a look
  at:  http://www.geognos.com/geo/en/cc/no.html#Economy
  Unfortunately i did not have the time to document the code but feel
  free to examine the page source code and the relative javascript
  files.

  Happy coding;)

  On Feb 18, 2:30 pm, Massimiliano massimiliano.pietr...@gmail.com
  wrote:
   Dear All,
   I'm trying to learn using python and Google App Engine. Can I use this
   library on the appengine? Just importing this in the python application
   (from pygooglechart import *)?

   Massimiliano

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Re: [google-appengine] must i install Visual Studio for python ssl module?

You could download the free version of Visual Studio and then try to compile
it with that.. but... you'd be on your own figuring out how to get it to
compile after installing Visual Studio.

On Fri, Feb 19, 2010 at 10:39 AM, saintthor saintt...@gmail.com wrote:

for ssl module, i downloaded ssl-1.15.tar.gz from
http://pypi.python.org/pypi/ssl.
but it is source, no exe file. i tried to install it, message as
below.

D:\Python25\ssl-1.15setup.py install
running install
running build
running build_py
running build_ext
building 'ssl._ssl2' extension
error: Python was built with Visual Studio version 7.1, and extensions
need to b
e built with the same version of the compiler, but it isn't installed.

where can i get a exe file or how can i install this module in other
way?

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[google-appengine] Re: implementing asynchronous http in java

guess I'll post on stackoverflow...

On Feb 19, 7:33 am, Conor Power iamco...@gmail.com wrote:
 apologies if I'm a little vague in my reply but I remember receiving
 something similar when I first started using the URLFetchService and I think
 it was related to the fact that I had imported the incorrect classes for
 HTTPRequest or header or something like like. I think I just chose the first
 one offered to me by the IDE ...

 It was a while ago so I hope I'm not sending you on a wild goose chase.

 On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 



 david.jonathan.nel...@gmail.com wrote:
  Hi,

  I'm trying to implement async http in java.  Here is the important
  part of the code:

                         for (String urlString : urls)
                         {
                                 // TODO: try and get rid of these two heap
  allocations
                                 url = new URL(urlString);
                                 request = new HTTPRequest(url);
                                 request.addHeader(userAgentHeader);
                                 request.addHeader(authorizationHeader);
                                 request.addHeader(acceptEncodingHeader);
                                 request.addHeader(acceptCharsetHeader);

  responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(reques 
  t));
                                 apiCallsMade++;
                         }
                         for (FutureHTTPResponse futureResponse :
  responses)
                         {
                                 parseResponse(new
  String(futureResponse.get().getContent()));
                         }

  I keep getting this error:  com.google.apphosting.api.ApiProxy
  $CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
  was not found..  I looked around for any jars that were missing from
  the classpath but didn't see anything missing.  Do you know which jar
  that code is in?  I googled the error and also searched through this
  group but found nothing.

  Thanks,
  David

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[google-appengine] Re: implementing asynchronous http in java

weird, I get the same error even when I pin objects and call urlfetch
synchronously:

url = new URL(urlString);
request = new HTTPRequest(url);
request.addHeader(userAgentHeader);
request.addHeader(authorizationHeader);
request.addHeader(acceptEncodingHeader);
request.addHeader(acceptCharsetHeader);
// undo pinning after debug
HTTPResponse response = 
urlFetchService.fetch(request);
byte[] responseBytes = response.getContent();
String responseString = new 
String(responseBytes);
parseResponse(responseString);
apiCallsMade++;

On Feb 19, 7:33 am, Conor Power iamco...@gmail.com wrote:
 apologies if I'm a little vague in my reply but I remember receiving
 something similar when I first started using the URLFetchService and I think
 it was related to the fact that I had imported the incorrect classes for
 HTTPRequest or header or something like like. I think I just chose the first
 one offered to me by the IDE ...

 It was a while ago so I hope I'm not sending you on a wild goose chase.

 On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 



 david.jonathan.nel...@gmail.com wrote:
  Hi,

  I'm trying to implement async http in java.  Here is the important
  part of the code:

                         for (String urlString : urls)
                         {
                                 // TODO: try and get rid of these two heap
  allocations
                                 url = new URL(urlString);
                                 request = new HTTPRequest(url);
                                 request.addHeader(userAgentHeader);
                                 request.addHeader(authorizationHeader);
                                 request.addHeader(acceptEncodingHeader);
                                 request.addHeader(acceptCharsetHeader);

  responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(reques 
  t));
                                 apiCallsMade++;
                         }
                         for (FutureHTTPResponse futureResponse :
  responses)
                         {
                                 parseResponse(new
  String(futureResponse.get().getContent()));
                         }

  I keep getting this error:  com.google.apphosting.api.ApiProxy
  $CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
  was not found..  I looked around for any jars that were missing from
  the classpath but didn't see anything missing.  Do you know which jar
  that code is in?  I googled the error and also searched through this
  group but found nothing.

  Thanks,
  David

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Re: [google-appengine] Re: implementing asynchronous http in java

I don't code in Java.. but my guess is you're making a silly mistake in
there somewhere..

Copy pasting some other person's posted code from the Java AppEngine group I
see it done this way:

URL url = new URL(urlStr);
URLFetchService urlFetchService =
URLFetchServiceFactory.getURLFetchService();
HTTPRequest httpRequest = new
HTTPRequest(url, HTTPMethod.GET,followRedirects());
HTTPResponse response = urlFetchService.fetch(httpRequest);

On Fri, Feb 19, 2010 at 4:27 PM, davidnelson 
david.jonathan.nel...@gmail.com wrote:

 weird, I get the same error even when I pin objects and call urlfetch
 synchronously:

url = new URL(urlString);
request = new HTTPRequest(url);
request.addHeader(userAgentHeader);
request.addHeader(authorizationHeader);
request.addHeader(acceptEncodingHeader);
request.addHeader(acceptCharsetHeader);
 // undo pinning after debug
HTTPResponse response =
 urlFetchService.fetch(request);
byte[] responseBytes =
 response.getContent();
String responseString = new
 String(responseBytes);
parseResponse(responseString);
apiCallsMade++;

 On Feb 19, 7:33 am, Conor Power iamco...@gmail.com wrote:
  apologies if I'm a little vague in my reply but I remember receiving
  something similar when I first started using the URLFetchService and I
 think
  it was related to the fact that I had imported the incorrect classes for
  HTTPRequest or header or something like like. I think I just chose the
 first
  one offered to me by the IDE ...
 
  It was a while ago so I hope I'm not sending you on a wild goose chase.
 
  On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 
 
 
 
  david.jonathan.nel...@gmail.com wrote:
   Hi,
 
   I'm trying to implement async http in java.  Here is the important
   part of the code:
 
  for (String urlString : urls)
  {
  // TODO: try and get rid of these two
 heap
   allocations
  url = new URL(urlString);
  request = new HTTPRequest(url);
  request.addHeader(userAgentHeader);
  request.addHeader(authorizationHeader);
  request.addHeader(acceptEncodingHeader);
  request.addHeader(acceptCharsetHeader);
 
  
 responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(reques
 t));
  apiCallsMade++;
  }
  for (FutureHTTPResponse futureResponse :
   responses)
  {
  parseResponse(new
   String(futureResponse.get().getContent()));
  }
 
   I keep getting this error:  com.google.apphosting.api.ApiProxy
   $CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
   was not found..  I looked around for any jars that were missing from
   the classpath but didn't see anything missing.  Do you know which jar
   that code is in?  I googled the error and also searched through this
   group but found nothing.
 
   Thanks,
   David
 
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[google-appengine] Re: pygooglechart

I have taken a look in the library.

It seems it imports the following python packages

import os
import urllib
import math
import random
import re

Now I am not sure it will work on GAE since as far as I know math is a
wraper around c math and this is no no in GAE.
Hope some body else who is more familiar with the above libraries can
advice.

Happy coding ;-)


Yes in your PC - follow the instructions of the library for that so
you ca test it with the local server.
Also include the whole library on your project files so it will be
uploaded in GAE.


On Feb 19, 10:21 pm, nickmilon nickmi...@gmail.com wrote:
 Yes in your PC - follow the instructions of the library for that.
 Later on I will take a look at the library my self.

 On Feb 19, 1:09 pm, Massimiliano massimiliano.pietr...@gmail.com
 wrote:



  Sure you can after installing the library on my PC?

  2010/2/19 nickmilon nickmi...@gmail.com

   Sure you can after installing the library and including the files in
   your application provided this library does not depend on anything but
   python.
   Also since data passing mechanism for google visualization api is
   quite easy to implement in python you can avoid the burden of one more
   import and write your own interface.
   For an example of using visualization api from gae you can take a look
   at:  http://www.geognos.com/geo/en/cc/no.html#Economy
   Unfortunately i did not have the time to document the code but feel
   free to examine the page source code and the relative javascript
   files.

   Happy coding;)

   On Feb 18, 2:30 pm, Massimiliano massimiliano.pietr...@gmail.com
   wrote:
Dear All,
I'm trying to learn using python and Google App Engine. Can I use this
library on the appengine? Just importing this in the python application
(from pygooglechart import *)?

Massimiliano

--

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[google-appengine] Re: implementing asynchronous http in java

At this point I'm feeling not so smart :-(

I can't even get synchronous urlfetch to work via the low level api:

URL url = new URL(http://www.google.com;);
URLFetchService urlFetchService =
URLFetchServiceFactory.getURLFetchService();
FetchOptions options = 
FetchOptions.Builder.followRedirects();
HTTPRequest httpRequest = new
HTTPRequest(url, HTTPMethod.GET,options);
HTTPResponse response = 
urlFetchService.fetch(httpRequest);

it throws a nullpointerexception with no stack trace and no source
code available to debug it.

On Feb 19, 1:37 pm, Eli Jones eli.jo...@gmail.com wrote:
 I don't code in Java.. but my guess is you're making a silly mistake in
 there somewhere..

 Copy pasting some other person's posted code from the Java AppEngine group I
 see it done this way:

 URL url = new URL(urlStr);
 URLFetchService urlFetchService =
 URLFetchServiceFactory.getURLFetchService();
 HTTPRequest httpRequest = new
 HTTPRequest(url, HTTPMethod.GET,followRedirects());
 HTTPResponse response = urlFetchService.fetch(httpRequest);

 On Fri, Feb 19, 2010 at 4:27 PM, davidnelson 



 david.jonathan.nel...@gmail.com wrote:
  weird, I get the same error even when I pin objects and call urlfetch
  synchronously:

                                 url = new URL(urlString);
                                 request = new HTTPRequest(url);
                                 request.addHeader(userAgentHeader);
                                 request.addHeader(authorizationHeader);
                                 request.addHeader(acceptEncodingHeader);
                                 request.addHeader(acceptCharsetHeader);
                                  // undo pinning after debug
                                 HTTPResponse response =
  urlFetchService.fetch(request);
                                 byte[] responseBytes =
  response.getContent();
                                 String responseString = new
  String(responseBytes);
                                 parseResponse(responseString);
                                 apiCallsMade++;

  On Feb 19, 7:33 am, Conor Power iamco...@gmail.com wrote:
   apologies if I'm a little vague in my reply but I remember receiving
   something similar when I first started using the URLFetchService and I
  think
   it was related to the fact that I had imported the incorrect classes for
   HTTPRequest or header or something like like. I think I just chose the
  first
   one offered to me by the IDE ...

   It was a while ago so I hope I'm not sending you on a wild goose chase.

   On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 

   david.jonathan.nel...@gmail.com wrote:
Hi,

I'm trying to implement async http in java.  Here is the important
part of the code:

                       for (String urlString : urls)
                       {
                               // TODO: try and get rid of these two
  heap
allocations
                               url = new URL(urlString);
                               request = new HTTPRequest(url);
                               request.addHeader(userAgentHeader);
                               request.addHeader(authorizationHeader);
                               request.addHeader(acceptEncodingHeader);
                               request.addHeader(acceptCharsetHeader);

  responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(reques
  t));
                               apiCallsMade++;
                       }
                       for (FutureHTTPResponse futureResponse :
responses)
                       {
                               parseResponse(new
String(futureResponse.get().getContent()));
                       }

I keep getting this error:  com.google.apphosting.api.ApiProxy
$CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
was not found..  I looked around for any jars that were missing from
the classpath but didn't see anything missing.  Do you know which jar
that code is in?  I googled the error and also searched through this
group but found nothing.

Thanks,
David

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[google-appengine] Re: implementing asynchronous http in java

more info, I tried using the app engine version 1.3.0 and that's when
I get nullpointerexceptions.  switching back to 1.3.1 and I get the
first exception I initially posted, sync or async.

On Feb 19, 1:37 pm, Eli Jones eli.jo...@gmail.com wrote:
 I don't code in Java.. but my guess is you're making a silly mistake in
 there somewhere..

 Copy pasting some other person's posted code from the Java AppEngine group I
 see it done this way:

 URL url = new URL(urlStr);
 URLFetchService urlFetchService =
 URLFetchServiceFactory.getURLFetchService();
 HTTPRequest httpRequest = new
 HTTPRequest(url, HTTPMethod.GET,followRedirects());
 HTTPResponse response = urlFetchService.fetch(httpRequest);

 On Fri, Feb 19, 2010 at 4:27 PM, davidnelson 



 david.jonathan.nel...@gmail.com wrote:
  weird, I get the same error even when I pin objects and call urlfetch
  synchronously:

                                 url = new URL(urlString);
                                 request = new HTTPRequest(url);
                                 request.addHeader(userAgentHeader);
                                 request.addHeader(authorizationHeader);
                                 request.addHeader(acceptEncodingHeader);
                                 request.addHeader(acceptCharsetHeader);
                                  // undo pinning after debug
                                 HTTPResponse response =
  urlFetchService.fetch(request);
                                 byte[] responseBytes =
  response.getContent();
                                 String responseString = new
  String(responseBytes);
                                 parseResponse(responseString);
                                 apiCallsMade++;

  On Feb 19, 7:33 am, Conor Power iamco...@gmail.com wrote:
   apologies if I'm a little vague in my reply but I remember receiving
   something similar when I first started using the URLFetchService and I
  think
   it was related to the fact that I had imported the incorrect classes for
   HTTPRequest or header or something like like. I think I just chose the
  first
   one offered to me by the IDE ...

   It was a while ago so I hope I'm not sending you on a wild goose chase.

   On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 

   david.jonathan.nel...@gmail.com wrote:
Hi,

I'm trying to implement async http in java.  Here is the important
part of the code:

                       for (String urlString : urls)
                       {
                               // TODO: try and get rid of these two
  heap
allocations
                               url = new URL(urlString);
                               request = new HTTPRequest(url);
                               request.addHeader(userAgentHeader);
                               request.addHeader(authorizationHeader);
                               request.addHeader(acceptEncodingHeader);
                               request.addHeader(acceptCharsetHeader);

  responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(reques
  t));
                               apiCallsMade++;
                       }
                       for (FutureHTTPResponse futureResponse :
responses)
                       {
                               parseResponse(new
String(futureResponse.get().getContent()));
                       }

I keep getting this error:  com.google.apphosting.api.ApiProxy
$CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
was not found..  I looked around for any jars that were missing from
the classpath but didn't see anything missing.  Do you know which jar
that code is in?  I googled the error and also searched through this
group but found nothing.

Thanks,
David

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[google-appengine] Re: implementing asynchronous http in java

problem solved.  I was referencing the app engine/gwt project from a
console app.  apparently you can't do this.  when I debug it as a
google app project, it works.   hope this minor pain and lesson will
help someone else someday.  thanks, David

On Feb 19, 2:13 pm, davidnelson david.jonathan.nel...@gmail.com
wrote:
 more info, I tried using the app engine version 1.3.0 and that's when
 I get nullpointerexceptions.  switching back to 1.3.1 and I get the
 first exception I initially posted, sync or async.

 On Feb 19, 1:37 pm, Eli Jones eli.jo...@gmail.com wrote:



  I don't code in Java.. but my guess is you're making a silly mistake in
  there somewhere..

  Copy pasting some other person's posted code from the Java AppEngine group I
  see it done this way:

  URL url = new URL(urlStr);
  URLFetchService urlFetchService =
  URLFetchServiceFactory.getURLFetchService();
  HTTPRequest httpRequest = new
  HTTPRequest(url, HTTPMethod.GET,followRedirects());
  HTTPResponse response = urlFetchService.fetch(httpRequest);

  On Fri, Feb 19, 2010 at 4:27 PM, davidnelson 

  david.jonathan.nel...@gmail.com wrote:
   weird, I get the same error even when I pin objects and call urlfetch
   synchronously:

                                  url = new URL(urlString);
                                  request = new HTTPRequest(url);
                                  request.addHeader(userAgentHeader);
                                  request.addHeader(authorizationHeader);
                                  request.addHeader(acceptEncodingHeader);
                                  request.addHeader(acceptCharsetHeader);
                                   // undo pinning after debug
                                  HTTPResponse response =
   urlFetchService.fetch(request);
                                  byte[] responseBytes =
   response.getContent();
                                  String responseString = new
   String(responseBytes);
                                  parseResponse(responseString);
                                  apiCallsMade++;

   On Feb 19, 7:33 am, Conor Power iamco...@gmail.com wrote:
apologies if I'm a little vague in my reply but I remember receiving
something similar when I first started using the URLFetchService and I
   think
it was related to the fact that I had imported the incorrect classes for
HTTPRequest or header or something like like. I think I just chose the
   first
one offered to me by the IDE ...

It was a while ago so I hope I'm not sending you on a wild goose chase.

On Fri, Feb 19, 2010 at 4:52 AM, davidnelson 

david.jonathan.nel...@gmail.com wrote:
 Hi,

 I'm trying to implement async http in java.  Here is the important
 part of the code:

                        for (String urlString : urls)
                        {
                                // TODO: try and get rid of these two
   heap
 allocations
                                url = new URL(urlString);
                                request = new HTTPRequest(url);
                                request.addHeader(userAgentHeader);
                                request.addHeader(authorizationHeader);
                                
 request.addHeader(acceptEncodingHeader);
                                request.addHeader(acceptCharsetHeader);

   responses.add(URLFetchServiceFactory.getURLFetchService().fetchAsync(reques
   t));
                                apiCallsMade++;
                        }
                        for (FutureHTTPResponse futureResponse :
 responses)
                        {
                                parseResponse(new
 String(futureResponse.get().getContent()));
                        }

 I keep getting this error:  com.google.apphosting.api.ApiProxy
 $CallNotFoundException: The API package 'urlfetch' or call 'Fetch()'
 was not found..  I looked around for any jars that were missing from
 the classpath but didn't see anything missing.  Do you know which jar
 that code is in?  I googled the error and also searched through this
 group but found nothing.

 Thanks,
 David

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[google-appengine] HELP! Stored Data Quota Weirdness- My Site is Down!

Yesterday after I updated our quotas though Google checkout because we
were regularly getting close to some of our limits.

About 1am last night, my site started throwing  OverQuotaError: The
API call datastore_v3.Put() required more quota than is available.

This morning I quickly jumped online and purchased more allowance,
thinking we had a spike in traffic and my new quotas have kicked in
but it seems my site is still throwing the error.

Also, It seems that i'm able to store data now, but other users
cannot. Are admins treated differently?

Also, My dashboard seem a little weird as its Free Quota Bar is
siting on 0 for stored data?
http://www.imged.org/121/capture0.png

One other question, is there a better place than this for me to
contact a Google support staff to help? Is there such a thing?

Jay.

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[google-appengine] Re: pygooglechart

2010-02-19 Thread Sylvain

I think it's easier not to use a lib for Google Chart.
Each time I tried to use one, I spent a lot of time to understand /
debug it.

There is a good example how to use GChart from scratch here :
http://gpxplot.googlecode.com/svn/trunk/gpxplot.py

And there is a perfect func to generate extended data :

def google_ext_encode(i):
Google Charts' extended encoding,
see http://code.google.com/apis/chart/mappings.html#extended_values;
enc='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
enc=enc+enc.lower()+'0123456789-.'
i=int(i)%4096 # modulo 4096
figure=enc[int(i/len(enc))]+enc[int(i%len(enc))]
return figure

I think this is the only thing you need.


On Feb 19, 10:39 pm, nickmilon nickmi...@gmail.com wrote:
 I have taken a look in the library.

 It seems it imports the following python packages

 import os
 import urllib
 import math
 import random
 import re

 Now I am not sure it will work on GAE since as far as I know math is a
 wraper around c math and this is no no in GAE.
 Hope some body else who is more familiar with the above libraries can
 advice.

 Happy coding ;-)

 Yes in your PC - follow the instructions of the library for that so
 you ca test it with the local server.
 Also include the whole library on your project files so it will be
 uploaded in GAE.

 On Feb 19, 10:21 pm, nickmilon nickmi...@gmail.com wrote:

  Yes in your PC - follow the instructions of the library for that.
  Later on I will take a look at the library my self.

  On Feb 19, 1:09 pm, Massimiliano massimiliano.pietr...@gmail.com
  wrote:

   Sure you can after installing the library on my PC?

   2010/2/19 nickmilon nickmi...@gmail.com

Sure you can after installing the library and including the files in
your application provided this library does not depend on anything but
python.
Also since data passing mechanism for google visualization api is
quite easy to implement in python you can avoid the burden of one more
import and write your own interface.
For an example of using visualization api from gae you can take a look
at:  http://www.geognos.com/geo/en/cc/no.html#Economy
Unfortunately i did not have the time to document the code but feel
free to examine the page source code and the relative javascript
files.

Happy coding;)

On Feb 18, 2:30 pm, Massimiliano massimiliano.pietr...@gmail.com
wrote:
 Dear All,
 I'm trying to learn using python and Google App Engine. Can I use this
 library on the appengine? Just importing this in the python 
 application
 (from pygooglechart import *)?

 Massimiliano

 --

 My email: massimiliano.pietr...@gmail.com
 My Google Wave: massimiliano.pietr...@googlewave.com

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[google-appengine] Re: HELP! Stored Data Quota Weirdness- My Site is Down!

Also note that the dashboard reports total stored data in the database
as 1GB when there should be about 6 gig of data.

On Feb 20, 9:54 am, jay kyburz@gmail.com wrote:
 Yesterday after I updated our quotas though Google checkout because we
 were regularly getting close to some of our limits.

 About 1am last night, my site started throwing  OverQuotaError: The
 API call datastore_v3.Put() required more quota than is available.

 This morning I quickly jumped online and purchased more allowance,
 thinking we had a spike in traffic and my new quotas have kicked in
 but it seems my site is still throwing the error.

 Also, It seems that i'm able to store data now, but other users
 cannot. Are admins treated differently?

 Also, My dashboard seem a little weird as its Free Quota Bar is
 siting on 0 for stored data?http://www.imged.org/121/capture0.png

 One other question, is there a better place than this for me to
 contact a Google support staff to help? Is there such a thing?

 Jay.

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Re: [google-appengine] Re: HELP! Stored Data Quota Weirdness- My Site is Down!

Well, the screencapture you posted is just reflecting that.. 1 GB out of 400
GB is much less than 1%.. so.. it just shows 0% usage (or that is my guess).

Though, I have bee seeing wierd behaviour with the Total Stored Data
number.. like you, mine was showing less usage that was there. (It showed
.03 GB when I was using .27 GB.. it eventually corrected itself).

On Fri, Feb 19, 2010 at 6:04 PM, jay kyburz@gmail.com wrote:

Also note that the dashboard reports total stored data in the database
as 1GB when there should be about 6 gig of data.

On Feb 20, 9:54 am, jay kyburz@gmail.com wrote:
Yesterday after I updated our quotas though Google checkout because we
were regularly getting close to some of our limits.

About 1am last night, my site started throwing OverQuotaError: The
API call datastore_v3.Put() required more quota than is available.

This morning I quickly jumped online and purchased more allowance,
thinking we had a spike in traffic and my new quotas have kicked in
but it seems my site is still throwing the error.

Also, It seems that i'm able to store data now, but other users
cannot. Are admins treated differently?

Also, My dashboard seem a little weird as its Free Quota Bar is
siting on 0 for stored data?http://www.imged.org/121/capture0.png

One other question, is there a better place than this for me to
contact a Google support staff to help? Is there such a thing?

Jay.

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[google-appengine] Re: HELP! Stored Data Quota Weirdness- My Site is Down!

is it possible that I'm experiencing the same problem as these people
here..

http://groups.google.com/group/google-appengine/browse_thread/thread/d9553ff5a42ce122/e9cc07c63aedb65c?lnk=gstq=Over+Quota+Error#e9cc07c63aedb65c

On Feb 20, 10:04 am, jay kyburz@gmail.com wrote:
Also note that the dashboard reports total stored data in the database
as 1GB when there should be about 6 gig of data.

On Feb 20, 9:54 am, jay kyburz@gmail.com wrote:

Yesterday after I updated our quotas though Google checkout because we
were regularly getting close to some of our limits.

About 1am last night, my site started throwing OverQuotaError: The
API call datastore_v3.Put() required more quota than is available.

This morning I quickly jumped online and purchased more allowance,
thinking we had a spike in traffic and my new quotas have kicked in
but it seems my site is still throwing the error.

Also, It seems that i'm able to store data now, but other users
cannot. Are admins treated differently?

Also, My dashboard seem a little weird as its Free Quota Bar is
siting on 0 for stored data?http://www.imged.org/121/capture0.png

One other question, is there a better place than this for me to
contact a Google support staff to help? Is there such a thing?

Jay.

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[google-appengine] Application Logs

2010-02-19 Thread Sandeep

My output from System.out is not showing under INFO in the Admin
Console Logs. Has anyone else faced similar issue?

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[google-appengine] Re: HELP! Stored Data Quota Weirdness- My Site is Down!


hah, oh yeah I was confused because it wan't reporting any of my data
in the datastore.

On Feb 20, 10:12 am, Eli Jones eli.jo...@gmail.com wrote:
 Well, the screencapture you posted is just reflecting that.. 1 GB out of 400
 GB is much less than 1%.. so.. it just shows 0% usage (or that is my guess).

 Though, I have bee seeing wierd behaviour with the Total Stored Data
 number.. like you, mine was showing less usage that was there.  (It showed
 .03 GB when I was using .27 GB.. it eventually corrected itself).



 On Fri, Feb 19, 2010 at 6:04 PM, jay kyburz@gmail.com wrote:
  Also note that the dashboard reports total stored data in the database
  as 1GB when there should be about 6 gig of data.

  On Feb 20, 9:54 am, jay kyburz@gmail.com wrote:
   Yesterday after I updated our quotas though Google checkout because we
   were regularly getting close to some of our limits.

   About 1am last night, my site started throwing  OverQuotaError: The
   API call datastore_v3.Put() required more quota than is available.

   This morning I quickly jumped online and purchased more allowance,
   thinking we had a spike in traffic and my new quotas have kicked in
   but it seems my site is still throwing the error.

   Also, It seems that i'm able to store data now, but other users
   cannot. Are admins treated differently?

   Also, My dashboard seem a little weird as its Free Quota Bar is
   siting on 0 for stored data?http://www.imged.org/121/capture0.png

   One other question, is there a better place than this for me to
   contact a Google support staff to help? Is there such a thing?

   Jay.

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  e...@googlegroups.com
  .
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 http://groups.google.com/group/google-appengine?hl=en.

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[google-appengine] Re: Datastore Statistics page not updating (over 3 days now)

Hmm.. I suppose I could have hit the 1MB limit for stats that is mentioned
here:

http://code.google.com/appengine/kb/adminconsole.html#datastore_stats

http://code.google.com/appengine/kb/adminconsole.html#datastore_statsIs
there a rule of thumb for estimating stats usage?  I'm at .3 GB of Datastore
usage so that would mean that somewhere around 0.3% of that went to stats..
which pushed me over the limit possibly?

I have only 5 defined Models that are in use.. and those models have a total
of 16 defined properties and 12 of those properties have indexed=False.

Anyway, this is low on the pile of important issues.. but it'll be nice when
I can keep an eye on stats for my entities since it helps me optimize any
poorly defined models.

On Fri, Feb 19, 2010 at 1:17 PM, Eli Jones eli.jo...@gmail.com wrote:

 Is there a backlog on getting Datastore Statistics calculated?

 When I go to the Datastore Statistics page for my application, it
 indicates that Last Updated = 3 days, 3:35:42 ago

 Which is accurate since there are no stats for entities or Models created
 since then.

 Is anyone else having this issue or am I the only lucky one?

 IF this is not related to the Maintenance performed earlier this week, then
 it could be related to the fact that I generated a new Model with ALOT of
 new entities (around 500,000) the night before Maintenance .. so much so
 that my Total Stored Data jumped from .03 to .27 GB (granted, all of the
 properties on the entities are Indexed=False).

 Could the addition of so much new data make Statistics take a long time to
 update?


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[google-appengine] Re: Datastore Statistics page not updating (over 3 days now)

Hooray, the magic appengine elves have updated my stats.

Thank you App Engine Infrastructure.

On Fri, Feb 19, 2010 at 7:16 PM, Eli Jones eli.jo...@gmail.com wrote:

 Hmm.. I suppose I could have hit the 1MB limit for stats that is mentioned
 here:

 http://code.google.com/appengine/kb/adminconsole.html#datastore_stats

 http://code.google.com/appengine/kb/adminconsole.html#datastore_statsIs
 there a rule of thumb for estimating stats usage?  I'm at .3 GB of Datastore
 usage so that would mean that somewhere around 0.3% of that went to stats..
 which pushed me over the limit possibly?

 I have only 5 defined Models that are in use.. and those models have a
 total of 16 defined properties and 12 of those properties have
 indexed=False.

 Anyway, this is low on the pile of important issues.. but it'll be nice
 when I can keep an eye on stats for my entities since it helps me optimize
 any poorly defined models.


 On Fri, Feb 19, 2010 at 1:17 PM, Eli Jones eli.jo...@gmail.com wrote:

 Is there a backlog on getting Datastore Statistics calculated?

 When I go to the Datastore Statistics page for my application, it
 indicates that Last Updated = 3 days, 3:35:42 ago

 Which is accurate since there are no stats for entities or Models created
 since then.

 Is anyone else having this issue or am I the only lucky one?

 IF this is not related to the Maintenance performed earlier this week,
 then it could be related to the fact that I generated a new Model with ALOT
 of new entities (around 500,000) the night before Maintenance .. so much so
 that my Total Stored Data jumped from .03 to .27 GB (granted, all of the
 properties on the entities are Indexed=False).

 Could the addition of so much new data make Statistics take a long time to
 update?




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Re: [google-appengine] Local datastore is slow once loaded up, any suggestions?

I noticed this issue as well when working from a bulkloaded backup up my
live datastore (around the same number of entities). For me, it seems that
db.delete() takes forever.. db.puts() seem tolerable. (I'm on Windows).

I see that Nick is indicating that this may just be the way it is.

It'd be nice to do offline processing and development working against a
snapshot of my current datastore.. but I'm not going to whine too much for
that. I'd rather the App Engine Team keep focusing on sweetening the live
store.

One potential way around this (if you reay, really wanted to use the
development environment with a large datastore).. you could cook up a way to
have the datastore stuff loaded into a global Dictionary object.. and you
could put(), delete() stuff from it while testing.

That might work well since the development environment seems to run only one
instance or thread or whatever they call it.. so as long as you didn't fill
up the memory, it seems that maybe the global object would be there for long
enough to do several tests..

Then again, you'd probably need uncoupled Models.. where no class was
related to any other one through references or ancestors or parents or
children etc. So, like I said, you'd have to really want to do this..

For me, this would work since I want to do lots of cycling through 10s of
thousands of entities.. updating and deleting them in memory (Model entities
are relate to others only through their key_names and not through any
defined properties)... then when I was done.. I could just have some process
sync the ram datastore with the one on disk.. and go have a beer or whatever
while it took its sweet time.

There be dragons in the details though.

On Fri, Feb 19, 2010 at 12:19 PM, obvious c...@obviousdiversion.com wrote:

I've loaded up a local datastore with 40,000+ entries. Unfortunately,
recalling any data from it at all is very slow on my fairly new
Macbook Pro. Any suggestions on speeding things up, short of buying a
new piece of hardware?

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Re: [google-appengine] Application Logs

Is there a reason you're using this mechanism instead of using the Logger?

http://code.google.com/appengine/articles/logging.html

http://code.google.com/appengine/articles/logging.htmlIn general, you
shouldn't rely on having access to STDOUT in production.

On Fri, Feb 19, 2010 at 3:57 PM, Sandeep sandeep.sath...@gmail.com wrote:

 My output from System.out is not showing under INFO in the Admin
 Console Logs. Has anyone else faced similar issue?

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-- 
Ikai Lan
Developer Programs Engineer, Google App Engine
http://googleappengine.blogspot.com | http://twitter.com/app_engine

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[google-appengine] Frustrating tutorials

2010-02-19 Thread Manny

several of the tutorials leave out steps that leave the reader very
very confused as to why the heck they dont work.
Mainly this- 
http://code.google.com/appengine/docs/java/datastore/creatinggettinganddeletingdata.html
fails to adress in anyway the difficulties of using Key or KeyFactory.
The error - The import com.google.appengine cannot be resolved
should be addressed.
If anyone has this working WITHOUT ANY HACKS let me know I keys to
JUST WORK. i'm just gonna use strings. This point of Frustration
encounted MUST be indicated
before wasting other peoples time trying to make their own keys
withought the source from appengine.

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Re: [google-appengine] Local datastore is slow once loaded up, any suggestions?