date:20100602

Hello all
   can anybody please tell me how to implement simple one many
relation in java.I have user table and work table .Any user can do
many type of works.In user table i have userid but it is not primary
key of the user table.Then i have work table which has workid it is
also not primary key of the table.Normally in relation db we ca make
third table table which contains workid for every userid.What how can
we implement this thing appengine datastore.I want to have collection
all works in user object .can anybody please tell me how to define
this mapping?please note that in userid and workid are not primary
keys in both objects or tables.
Thanks in adavance.

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[appengine-java] Re: Security restrictions may not be entirely emulated errors in Dev mode with Spring 3.0 on 1.3.4

2010-06-02 Thread Bill


Okay, a few things I found out --

1.  The suggestion at 
http://code.google.com/p/googleappengine/issues/detail?id=2527
works quite well.  You'll find the afflicted appengine-agent.jar in
your eclipse plugins folder under
com.google.appengine.eclipse.sdkbundle.version/appengine-java-sdk-
version/lib/agent.  Use jarjar to fix internal refs to its own asm
code, completely compartmentalizing it away from everything else.
Ignore the ln -s suggestion, I have no idea what that's about except
possibly it's someone's idea to avoid renaming a file, and the
plugin.jar to plugin2.jar is just an example.  It's not really
relevant.
2.  It won't matter once you get this working.  Jetty will not be able
to find your hello.jsp.  I can't figure out why, but I believe it has
something to do with the URL pattern in web.xml.  I tried moving it
around without success.
3.  Both problems are non-issues on production.  I deployed the hello
app out there and everything just worked.  On one hand it's good, but
on the other, this drastically disimproves my build-test-turnaround
time.

On Jun 1, 10:56 pm, Andrew am2...@gmail.com wrote:
 Hi,

 I'm trying to get spring 3.0 up and running as per the blog post at

 http://www.ardentlord.com/apps/blog/show/829881-spring-3-0-on-google-...

 However I'm running into some issues when I try and start it up in
 Development (have not tried in production yet):

 The console is showing a stack of these messages:

 02/06/2010 2:50:19 AM
 com.google.appengine.tools.development.agent.impl.Transformer
 transform
 SEVERE: Unable to instrument
 org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator.
 Security restrictions may not be entirely emulated.
 java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.init(I)V

 However as far as I can tell the app is actually running.

 There was a thread in this group late last year that described a
 similar issue, and the suggested solution seemed to be to rename the
 plugin.jar file to plugin2.jar:

 http://groups.google.com.au/group/google-appengine-java/browse_thread...

 However the posters seemed to be using macs.  I am on Windows 7
 (Eclipse Galileo with the Google Plugin) and cannot locate this file -
 does anyone have any advice on where I may find it?

 Best regards,
 Andrew.

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[appengine-java] Re: JSP code debug: Compiled JSP location in local environment

2010-06-02 Thread Philip Tucker

FYI, on a Mac I found it in /var/folders/zz/zzzivhrRnAmviuee++-ZXU+
+NMs/-Tmp-/Jetty_127_0_0_1__war.g0qk00/jsp/org/apache/jsp

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[appengine-java] Failure to write objects to HttpSession - NotSerializableException : LazyResult

2010-06-02 Thread Shawn Draper

I am storing user-profile information in the data store and retrieving
with the following code:

public static User getUserByID ( String userName ) throws Exception
{
PersistenceManager mgr = PMF.getInstance
( ).getPersistenceManager ( );
Query query = mgr.newQuery ( User.class );
query.setFilter ( userName == param );
query.declareParameters ( String param );

try
{
List User results = (List User) query.execute
( userName );
Iterator User i = results.iterator ( );
if ( i.hasNext ( ) )
return mgr.detachCopy ( i.next ( ) );
else
throw new Exception ( Unable to locate user [ +
userName + ] );
}
finally
{
query.closeAll ( );
mgr.close ( );
}
}

I'm storing the data in the HttpSession object with the following
code:

req.getSession ( true ).setAttribute ( USER, user );
log ( Session data loaded.  Redirecting to  + nxtactn + ... );
resp.sendRedirect ( nxtactn );

The following Exception is thrown when the Servlet redirects.

/Login
java.lang.RuntimeException: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.LazyResult
at
com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
361)
at
com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(SessionManager.java:
341)
at com.google.apphosting.runtime.jetty.SessionManager
$AppEngineSession.save(SessionManager.java:162)
at
com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
41)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
43)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
418)
at
com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:
238)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
542)
at org.mortbay.jetty.HttpConnection
$RequestHandler.headerComplete(HttpConnection.java:923)
at
com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
135)
at
com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
250)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5838)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5836)
at
com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:
24)
at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
398)
at com.google.net.rpc.impl.Server$2.run(Server.java:852)
at
com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
56)
at
com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:
576)
at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
at com.google.net.rpc.impl.Server.processRequest(Server.java:369)
at
com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:
442)
at
com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
319)
at
com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
290)
at com.google.net.async.Connection.handleReadEvent(Connection.java:
474)
at
com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:
831)
at
com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
207)
at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
103)
at
com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:
251)
at com.google.apphosting.runtime.JavaRuntime
$RpcRunnable.run(JavaRuntime.java:413)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.NotSerializableException:
org.datanucleus.store.appengine.query.LazyResult

Re: [appengine-java] Security restrictions may not be entirely emulated errors in Dev mode with Spring 3.0 on 1.3.4

Originally, I'd thought something along the same lines, but this isn't the
case. In my running server there's no asm running in my application
classpath, environment, or lib/ext. It's only in GAE and my application.

On Wed, Jun 2, 2010 at 12:04 PM, Toby Reyelts to...@google.com wrote:

It looks like you have a version of ASM that is incompatible with the
dev_appserver's version hanging around. Do you have ASM in your JRE's
lib/ext folder?

On Tue, Jun 1, 2010 at 10:56 PM, Andrew am2...@gmail.com wrote:

Hi,

I'm trying to get spring 3.0 up and running as per the blog post at

http://www.ardentlord.com/apps/blog/show/829881-spring-3-0-on-google-app-engine

However I'm running into some issues when I try and start it up in
Development (have not tried in production yet):

The console is showing a stack of these messages:

However as far as I can tell the app is actually running.

There was a thread in this group late last year that described a
similar issue, and the suggested solution seemed to be to rename the
plugin.jar file to plugin2.jar:

http://groups.google.com.au/group/google-appengine-java/browse_thread/thread/5e34079b5b3d58a1/b6db94a2df4ea58c?lnk=gstq=Security+restrictions+may+not+be+entirely+emulated.#b6db94a2df4ea58c

However the posters seemed to be using macs. I am on Windows 7
(Eclipse Galileo with the Google Plugin) and cannot locate this file -
does anyone have any advice on where I may find it?

Best regards,
Andrew.

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Re: [appengine-java] MemCache expiring around once a day

There's very little cost to connecting to the datastore. If this is an
issue, I'd look at the low-level API for anything that could be a warm-up
request. The expensive part of this is initializing your
PersistenceManagerFactory/EntityManagerFactory, not establishing a datastore
connection.

On Tue, Jun 1, 2010 at 8:12 PM, Rahul Juneja rahul.jun...@gmail.com wrote:

Ikai,
The problem is that i am not sure when the values in the cache will be
accessed. but anyways i have implemented it in such a way that if the value
is not found in cache it goes to database to fetch it, but another issue
there is that if you are making the database connection first time after the
new jvm instance has been kicked off as it happens in Appengine, db
connection takes a while, sometimes around 6-7 seconds, which is kind of
slow.

Nicolas,
Thats the reason i am fetching the data if not found in cache.

Thanks,
Rahul

--
Rahul Juneja
http://techlabs.thoughtclicks.com

On Tue, Jun 1, 2010 at 9:41 PM, Ikai L (Google) ika...@google.com wrote:

The items will get flushed if they are not getting used. If you're using
items once every 24 hours ... you probably do not need a cache. Use the
datastore instead. Rather than prevent the items from being flushed, build
the ability to regenerate the cache into your system or don't even bother
with Memcache.

On Tue, Jun 1, 2010 at 6:24 PM, Rahul Juneja rahul.jun...@gmail.comwrote:

Ikai,

I think you are right that the cache values are expiring via LRU as
sometimes only some elements of the cache are flushed.
But the question is my cache only has 20-30 entries and out of that 10
least recently used entries are being flushed. Is there any way i can
prevent this flushing as i don't want to flush if the cache is so small
instead i want the cache only to flush LRU elements when the cache grows in
size to maybe 100,000 entries.

Any clues ?

Thanks,
Rahul

--
Rahul Juneja
http://techlabs.thoughtclicks.com

On Tue, Jun 1, 2010 at 6:56 PM, Ikai L (Google) ika...@google.comwrote:

No, there isn't a default expiration. How are you setting values to the
cache? Could you be expiring the items via LRU? That is - you're not using
the items in the cache, instead setting other items and pushing the older,
unused items out?

On Wed, May 26, 2010 at 6:43 PM, Rahul rahul.jun...@gmail.com wrote:

I have a memcache and not to mention it does live between different
jvm instances when new jvm instances starts, i can access the cache
but once a while i don't find any values in cache and this happened
twice in last 24 hours. Is there any default expiration which is less
then 24-48 hours which i am not aware of.

Any help or pointers on this is appreciated.

Thanks,
Rahul

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Reddit: http://www.reddit.com/r/appengine

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Re: [appengine-java] Using Task Queue while storing entities

Move method1() to a method inside a servlet invoked by the Task Queue, then
inside your servlet call queue.add().

On Tue, Jun 1, 2010 at 8:49 PM, drift elysium drift2elys...@gmail.comwrote:

 hi,

 I'd like to know how exactly I should include the code for TaskQueue.

 I saw this line in the docs.

 queue.add(url(/path?a=bc=d).method(Method.GET))


 So, if I have a servlet like this and if the method1() takes a longer time
 and so I want to implement TaskQueue on it. How do I do it? Someone please
 help!

 public class sampleServlet extends HttpServlet{


 public void doPost(HttpServletRequest req, HttpServletResponse resp)
 throws ServletException, IOException {


 ...

//calling the function method1()
method1();
..



 }


  public void method1(){

  //here the entities are persisted
  }
 }


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Reddit: http://www.reddit.com/r/appengine

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Re: [appengine-java] guest book appln throws exception

You're using a JRE instead of a JDK. There are a couple of posts about
these:

http://www.google.com/search?sourceid=chromeie=UTF-8q=Caused+by:+java.lang.ClassNotFoundException:com.sun.tools.javac.Main+servletqscrl=1

On Tue, Jun 1, 2010 at 10:37 PM, shanthi ramabhadran 77can...@gmail.comwrote:

 The guestbook sample appln throws exceptions , any one can solve my
 problem?

 HTTP ERROR: 500

 Unable to compile class for JSP

 Generated servlet error:
[javac] Caused by: java.lang.ClassNotFoundException:
 com.sun.tools.javac.Main
[javac] at java.net.URLClassLoader$1.run(Unknown Source)
[javac] at java.security.AccessController.doPrivileged(Native
 Method)
[javac] at java.net.URLClassLoader.findClass(Unknown Source)
[javac] at java.lang.ClassLoader.loadClass(Unknown Source)
[javac] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown
 Source)
[javac] at java.lang.ClassLoader.loadClass(Unknown Source)
[javac] Exception in thread main Could not find the main class:
 com.sun.tools.javac.Main.  Program will exit.



 RequestURI=/

 Caused by:

 org.apache.jasper.JasperException: Unable to compile class for JSP

 Generated servlet error:
[javac] Caused by: java.lang.ClassNotFoundException:
 com.sun.tools.javac.Main
[javac] at java.net.URLClassLoader$1.run(Unknown Source)
[javac] at java.security.AccessController.doPrivileged(Native
 Method)
[javac] at java.net.URLClassLoader.findClass(Unknown Source)
[javac] at java.lang.ClassLoader.loadClass(Unknown Source)
[javac] at sun.misc.Launcher$AppClassLoader.loadClass(Unknown
 Source)
[javac] at java.lang.ClassLoader.loadClass(Unknown Source)
[javac] Exception in thread main Could not find the main class:
 com.sun.tools.javac.Main.  Program will exit.




at

 org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:
 84)
at
 org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:
 332)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:
 412)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
at
 org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:
 511)
at
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
 295)
at
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:
 292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at
 com.google.appengine.tools.development.PrivilegedJspServlet.access
 $101(PrivilegedJspServlet.java:23)
at com.google.appengine.tools.development.PrivilegedJspServlet
 $2.run(PrivilegedJspServlet.java:59)
at java.security.AccessController.doPrivileged(Native Method)
at

 com.google.appengine.tools.development.PrivilegedJspServlet.service(PrivilegedJspServlet.java:
 57)
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.handle(ServletHandler.java:
 362)
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.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
 70)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at

 com.google.appengine.tools.development.StaticFileUtils.serveWelcomeFileAsForward(StaticFileUtils.java:
 80)
at

 com.google.appengine.tools.development.LocalResourceFileServlet.maybeServeWelcomeFile(LocalResourceFileServlet.java:
 254)
at

 com.google.appengine.tools.development.LocalResourceFileServlet.doGet(LocalResourceFileServlet.java:
 120)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
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.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
 51)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1084)
at

 com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
 43)
at

Re: [appengine-java] simple relation

Are you trying one-to-many or many-to-many? By using a third table it
sounds like you're trying to do many-to-many, not one-to-many.

As best I can determine, the only real way to do this in GAE is to have a
User class with a collection of string properties, containing the list of
all Work ids. In this case a bidirectional link would be probably quite
useful, so that a Work could be identified by its User id.

Here's a scenario: Retrieve User by user id. Then, retrieve all Works in
the list of work ids owned by the User.

Note that this is not true object composition, with a User containing a List
of Collection, but rather an indirect reference. This pattern is useful in
a lot of circumstances where you want to be able to break up your object
model into more modular deployable applications. On the other hand, I'd
hate to be completely boxed in by this restriction.

I'm just getting started with GAE so I'm very much not an expert. I'd love
to know anybody else's thoughts on the matter.

On Wed, Jun 2, 2010 at 12:10 AM, RAVINDER MAAN rsmaan...@gmail.com wrote:

Hello all
can anybody please tell me how to implement simple one many
relation in java.I have user table and work table .Any user can do
many type of works.In user table i have userid but it is not primary
key of the user table.Then i have work table which has workid it is
also not primary key of the table.Normally in relation db we ca make
third table table which contains workid for every userid.What how can
we implement this thing appengine datastore.I want to have collection
all works in user object .can anybody please tell me how to define
this mapping?please note that in userid and workid are not primary
keys in both objects or tables.
Thanks in adavance.

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Re: [appengine-java] Failure to write objects to HttpSession - NotSerializableException : LazyResult

The User isn't serializable. Are you using the standard User class or a
custom User class?

On Tue, Jun 1, 2010 at 8:03 PM, Shawn Draper smd0...@hotmail.com wrote:

 I am storing user-profile information in the data store and retrieving
 with the following code:

 public static User getUserByID ( String userName ) throws Exception
{
PersistenceManager mgr = PMF.getInstance
 ( ).getPersistenceManager ( );
Query query = mgr.newQuery ( User.class );
query.setFilter ( userName == param );
query.declareParameters ( String param );

try
{
List User results = (List User) query.execute
 ( userName );
Iterator User i = results.iterator ( );
if ( i.hasNext ( ) )
return mgr.detachCopy ( i.next ( ) );
else
throw new Exception ( Unable to locate user [ +
 userName + ] );
}
finally
{
query.closeAll ( );
mgr.close ( );
}
}

 I'm storing the data in the HttpSession object with the following
 code:

 req.getSession ( true ).setAttribute ( USER, user );
 log ( Session data loaded.  Redirecting to  + nxtactn + ... );
 resp.sendRedirect ( nxtactn );

 The following Exception is thrown when the Servlet redirects.

 /Login
 java.lang.RuntimeException: java.io.NotSerializableException:
 org.datanucleus.store.appengine.query.LazyResult
at

 com.google.apphosting.runtime.jetty.SessionManager.serialize(SessionManager.java:
 361)
at

 com.google.apphosting.runtime.jetty.SessionManager.createEntityForSession(SessionManager.java:
 341)
at com.google.apphosting.runtime.jetty.SessionManager
 $AppEngineSession.save(SessionManager.java:162)
at

 com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:
 41)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
at

 com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
 43)
at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
 388)
at
 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
 216)
at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
 182)
at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
 765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
 418)
at

 com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:
 238)
at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at
 org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 542)
at org.mortbay.jetty.HttpConnection
 $RequestHandler.headerComplete(HttpConnection.java:923)
at

 com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:
 76)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at

 com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:
 135)
at
 com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
 250)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
 $6.handleBlockingRequest(RuntimePb.java:5838)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
 $6.handleBlockingRequest(RuntimePb.java:5836)
at

 com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:
 24)
at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
 398)
at com.google.net.rpc.impl.Server$2.run(Server.java:852)
at
 com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
 56)
at

 com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:
 576)
at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
at com.google.net.rpc.impl.Server.processRequest(Server.java:369)
at

 com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:
 442)
at
 com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:
 319)
at
 com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:
 290)
at com.google.net.async.Connection.handleReadEvent(Connection.java:
 474)
at

 com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:
 831)
at
 com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
 207)
at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
 103)
at

[appengine-java] Dev Server: response.setHeader() has no effect

2010-06-02 Thread keyurva

On the dev server I call setHeader() on the response but it doesn't
seem to set it - coz when I call containsHeader() immediately after
calling setHeader() it returns false.

response.setHeader(Content-Encoding, gzip);
logger.info(response.containsHeader(Content-Encoding)); //prints
false

Is this a known issue? It used to work in previous versions of the
SDK. I'm using 1.3.4

Thanks,
Keyur

P.S.: I know that the production server gzips the content itself. As
much as I don't like it, no I don't set the Content-Encoding header in
production.

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Re: [appengine-java] simple relation

Thank you so much for your answer Bill
yes you are rite the way i wrote its many to many relation.Actually I
want relation as below

class User{
Long id;
String username;
ListWork workList;
}

class Work{
Long id;
String workname;
String username;

}
   you can see work class has username and user class too has username.In
both classes primary key is id. I just want to know is there any way to get
workList populated automatically on retrieval of user object.we can do it
with 2 queries easily.we can reteriev user first then we can retrieve work
object with second query.


On Wed, Jun 2, 2010 at 10:35 PM, Bill Milligan bill.milli...@gmail.comwrote:


 Are you trying one-to-many or many-to-many?  By using a third table it
 sounds like you're trying to do many-to-many, not one-to-many.

 As best I can determine, the only real way to do this in GAE is to have a
 User class with a collection of string properties, containing the list of
 all Work ids.  In this case a bidirectional link would be probably quite
 useful, so that a Work could be identified by its User id.

 Here's a scenario:  Retrieve User by user id.  Then, retrieve all Works in
 the list of work ids owned by the User.

 Note that this is not true object composition, with a User containing a
 List of Collection, but rather an indirect reference.  This pattern is
 useful in a lot of circumstances where you want to be able to break up your
 object model into more modular deployable applications.  On the other hand,
 I'd hate to be completely boxed in by this restriction.

 I'm just getting started with GAE so I'm very much not an expert.  I'd love
 to know anybody else's thoughts on the matter.

 On Wed, Jun 2, 2010 at 12:10 AM, RAVINDER MAAN rsmaan...@gmail.comwrote:

 Hello all
   can anybody please tell me how to implement simple one many
 relation in java.I have user table and work table .Any user can do
 many type of works.In user table i have userid but it is not primary
 key of the user table.Then i have work table which has workid it is
 also not primary key of the table.Normally in relation db we ca make
 third table table which contains workid for every userid.What how can
 we implement this thing appengine datastore.I want to have collection
 all works in user object .can anybody please tell me how to define
 this mapping?please note that in userid and workid are not primary
 keys in both objects or tables.
 Thanks in adavance.

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Re: [appengine-java] simple relation

I believe you're going to have to change this to

class User {
String name;
List String workNames; // or List Long workIds;
}

class Work {
String name;
String userName; // or Long userId;
}

This is actually you'd design this under the MDA paradigm, actually.  You
need to be able to change each independently of the other.  As far as
automatic population, like an ORM would do, I don't think this is
possible.  You'll have to do this manually.  Honestly, you won't lose much
by doing two queries.

On Wed, Jun 2, 2010 at 2:12 PM, RAVINDER MAAN rsmaan...@gmail.com wrote:

 Thank you so much for your answer Bill
 yes you are rite the way i wrote its many to many relation.Actually I
 want relation as below

 class User{
 Long id;
 String username;
 ListWork workList;
 }

 class Work{
 Long id;
 String workname;
 String username;

 }
you can see work class has username and user class too has username.In
 both classes primary key is id. I just want to know is there any way to get
 workList populated automatically on retrieval of user object.we can do it
 with 2 queries easily.we can reteriev user first then we can retrieve work
 object with second query.


 On Wed, Jun 2, 2010 at 10:35 PM, Bill Milligan bill.milli...@gmail.comwrote:


 Are you trying one-to-many or many-to-many?  By using a third table it
 sounds like you're trying to do many-to-many, not one-to-many.

 As best I can determine, the only real way to do this in GAE is to have a
 User class with a collection of string properties, containing the list of
 all Work ids.  In this case a bidirectional link would be probably quite
 useful, so that a Work could be identified by its User id.

 Here's a scenario:  Retrieve User by user id.  Then, retrieve all Works in
 the list of work ids owned by the User.

 Note that this is not true object composition, with a User containing a
 List of Collection, but rather an indirect reference.  This pattern is
 useful in a lot of circumstances where you want to be able to break up your
 object model into more modular deployable applications.  On the other hand,
 I'd hate to be completely boxed in by this restriction.

 I'm just getting started with GAE so I'm very much not an expert.  I'd
 love to know anybody else's thoughts on the matter.

 On Wed, Jun 2, 2010 at 12:10 AM, RAVINDER MAAN rsmaan...@gmail.comwrote:

 Hello all
   can anybody please tell me how to implement simple one many
 relation in java.I have user table and work table .Any user can do
 many type of works.In user table i have userid but it is not primary
 key of the user table.Then i have work table which has workid it is
 also not primary key of the table.Normally in relation db we ca make
 third table table which contains workid for every userid.What how can
 we implement this thing appengine datastore.I want to have collection
 all works in user object .can anybody please tell me how to define
 this mapping?please note that in userid and workid are not primary
 keys in both objects or tables.
 Thanks in adavance.

 --
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 .
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 http://groups.google.com/group/google-appengine-java?hl=en.


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 --
 Regards,
 Ravinder Singh Maan

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Re: [appengine-java] MemCache expiring around once a day

2010-06-02 Thread Rahul Juneja

Ikai,

Yes you are right the expensive part is initializing
the EntityManagerFactory in my case. Is there any way we can improve
the performance on that.

Thanks,
Rahul
--
Rahul Juneja
http://techlabs.thoughtclicks.com

On Wed, Jun 2, 2010 at 12:55 PM, Ikai L (Google) ika...@google.com wrote:

On Tue, Jun 1, 2010 at 8:12 PM, Rahul Juneja rahul.jun...@gmail.comwrote:

Nicolas,
Thats the reason i am fetching the data if not found in cache.

Thanks,
Rahul

--
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On Tue, Jun 1, 2010 at 9:41 PM, Ikai L (Google) ika...@google.comwrote:

On Tue, Jun 1, 2010 at 6:24 PM, Rahul Juneja rahul.jun...@gmail.comwrote:

Ikai,

Any clues ?

Thanks,
Rahul

--
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http://techlabs.thoughtclicks.com

On Tue, Jun 1, 2010 at 6:56 PM, Ikai L (Google) ika...@google.comwrote:

On Wed, May 26, 2010 at 6:43 PM, Rahul rahul.jun...@gmail.com wrote:

Any help or pointers on this is appreciated.

Thanks,
Rahul

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Twitter: http://twitter.com/app_engine
Reddit: http://www.reddit.com/r/appengine

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[appengine-java] Re: Problems enabling Second-level cache with JPA

2010-06-02 Thread Erik Bengtson

Fixed in datanucleus 2.1 http://www.jpox.org/servlet/jira/browse/NUCCORE-539

On 4 mai, 21:22, Sérgio Lopes slo...@gmail.com wrote:
Thanks for the reply.

And about citing GAE caveats: maybe that's a good idea to promote your
product (I can speak for myself: I never heard about datanucleus before GAE,
and it seems like a nice product).

About 1.1 support: although there is no more support, the current GAE
version + datanucleus-cache-1.1 should have worked?

Thanks in advance and congratulations for the product

On Tue, May 4, 2010 at 13:32, datanucleus andy_jeffer...@yahoo.com wrote:
And DataNucleus docs for v2.0, v2.1 don't mention GAE/J since GAE/J
doesn't work with them, and we've been given no timescales when it
will.
The DN v1.1 docs mention GAE/J, but we have absolutely no intention of
mentioning caveats to specifications necessary to run GAE/J - since we
see no major reason why the vast majority of JDO3 and JPA2 can't be
handled cleanly with a NoSQL datastore.

Can't help you with your issue since v1.1 is no longer supported,
except commercially

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Re: [appengine-java] Re: Security restrictions may not be entirely emulated errors in Dev mode with Spring 3.0 on 1.3.4

If you've gotten past point 2, I'd love to see it. Redeploying every time I
make a change is driving me batty.

On Wed, Jun 2, 2010 at 7:38 PM, Andrew am2...@gmail.com wrote:

Thank you very much Bill. The suggestion in point 1 worked a treat.

To answer your other questions, I am using asm 2.1 and spring 3.0.2.

My url pattern is:

url-pattern/*/url-pattern

When I said that the app was actually running, I meant that even
though there were those errors in the console, I was able to browse to
the hello world file and it gave me the expected output so it appeared
the errors actually hadn't stopped anything from working.

If you would like me to send you my eclipse project in a zip file
please let me know and I'm happy to do so.

Best regards,
Andrew.

On Jun 3, 12:04 am, Bill bill.milli...@gmail.com wrote:
Okay, a few things I found out --

1. The suggestion athttp://
code.google.com/p/googleappengine/issues/detail?id=2527
works quite well. You'll find the afflicted appengine-agent.jar in
your eclipse plugins folder under
com.google.appengine.eclipse.sdkbundle.version/appengine-java-sdk-
version/lib/agent. Use jarjar to fix internal refs to its own asm
code, completely compartmentalizing it away from everything else.
Ignore the ln -s suggestion, I have no idea what that's about except
possibly it's someone's idea to avoid renaming a file, and the
plugin.jar to plugin2.jar is just an example. It's not really
relevant.
2. It won't matter once you get this working. Jetty will not be able
to find your hello.jsp. I can't figure out why, but I believe it has
something to do with the URL pattern in web.xml. I tried moving it
around without success.
3. Both problems are non-issues on production. I deployed the hello
app out there and everything just worked. On one hand it's good, but
on the other, this drastically disimproves my build-test-turnaround
time.

On Jun 1, 10:56 pm, Andrew am2...@gmail.com wrote:

Hi,

I'm trying to get spring 3.0 up and running as per the blog post at

http://www.ardentlord.com/apps/blog/show/829881-spring-3-0-on-google-.
..

However I'm running into some issues when I try and start it up in
Development (have not tried in production yet):

The console is showing a stack of these messages:

02/06/2010 2:50:19 AM
com.google.appengine.tools.development.agent.impl.Transformer
transform
SEVERE: Unable to instrument

org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator.
Security restrictions may not be entirely emulated.
java.lang.NoSuchMethodError: org.objectweb.asm.ClassWriter.init(I)V

However as far as I can tell the app is actually running.

There was a thread in this group late last year that described a
similar issue, and the suggested solution seemed to be to rename the
plugin.jar file to plugin2.jar:

http://groups.google.com.au/group/google-appengine-java/browse_thread.
..

However the posters seemed to be using macs. I am on Windows 7
(Eclipse Galileo with the Google Plugin) and cannot locate this file -
does anyone have any advice on where I may find it?

Best regards,
Andrew.

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[appengine-java] Re: Security restrictions may not be entirely emulated errors in Dev mode with Spring 3.0 on 1.3.4

2010-06-02 Thread Andrew

Hi Bill,

Can you send me the steps to reproduce it so I can see if I am
observing the same thing please?

Regards,
Andrew.

On Jun 3, 10:32 am, Bill Milligan bill.milli...@gmail.com wrote:
 If you've gotten past point 2, I'd love to see it.  Redeploying every time I
 make a change is driving me batty.

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[appengine-java] timestamp check failed error

2010-06-02 Thread iodsfjoipsdfi ijsdpfijd

Hi,

I deployed some of my GAE apps to the production server some months
ago and it worked perfectly.
Recently I haven't been using GAE but now I have to.

When I try to deploy my app to the production server I always get this
error log:

Unable to update:
javax.net.ssl.SSLHandshakeException:
sun.security.validator.ValidatorException: PKIX path validation
failed: java.security.cert.CertPathValidatorException: timestamp check
failed
at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown
Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
at
com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown
Source)
at
com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown
Source)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown
Source)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown
Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown
Source)
at
com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown
Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown
Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown
Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown
Source)
at
sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown
Source)
at
sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown
Source)
at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(Unknown
Source)
at
com.google.appengine.tools.admin.ServerConnection.connect(ServerConnection.java:
338)
at
com.google.appengine.tools.admin.ServerConnection.send(ServerConnection.java:
133)
at
com.google.appengine.tools.admin.ServerConnection.post(ServerConnection.java:
82)
at
com.google.appengine.tools.admin.AppVersionUpload.send(AppVersionUpload.java:
532)
at
com.google.appengine.tools.admin.AppVersionUpload.beginTransaction(AppVersionUpload.java:
349)
at
com.google.appengine.tools.admin.AppVersionUpload.doUpload(AppVersionUpload.java:
111)
at
com.google.appengine.tools.admin.AppAdminImpl.update(AppAdminImpl.java:
56)
at
com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy(AppEngineBridgeImpl.java:
271)
at
com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace(DeployProjectJob.java:
145)
at
org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:
38)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: sun.security.validator.ValidatorException: PKIX path
validation failed: java.security.cert.CertPathValidatorException:
timestamp check failed
at sun.security.validator.PKIXValidator.doValidate(Unknown Source)
at sun.security.validator.PKIXValidator.doValidate(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown
Source)
at sun.security.validator.Validator.validate(Unknown Source)
at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(Unknown
Source)
at
com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown
Source)
at
com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown
Source)
... 23 more
Caused by: java.security.cert.CertPathValidatorException: timestamp
check failed
at
sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(Unknown
Source)
at
sun.security.provider.certpath.PKIXCertPathValidator.doValidate(Unknown
Source)
at
sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(Unknown
Source)
at java.security.cert.CertPathValidator.validate(Unknown Source)
... 30 more
Caused by: java.security.cert.CertificateNotYetValidException:
NotBefore: Fri Mar 05 04:06:05 CET 2010
at sun.security.x509.CertificateValidity.valid(Unknown Source)
at sun.security.x509.X509CertImpl.checkValidity(Unknown Source)
at
sun.security.provider.certpath.BasicChecker.verifyTimestamp(Unknown
Source)
at sun.security.provider.certpath.BasicChecker.check(Unknown Source)
  ... 34 more
What am I doing wrong?

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Re: [appengine-java] timestamp check failed error

If I had to guess: your system clock is off. Try syncing it with a network
time server and try again.

On Wed, Jun 2, 2010 at 6:57 PM, iodsfjoipsdfi ijsdpfijd 
gaefjga...@gmail.com wrote:

 Hi,

 I deployed some of my GAE apps to the production server some months
 ago and it worked perfectly.
 Recently I haven't been using GAE but now I have to.

 When I try to deploy my app to the production server I always get this
 error log:

 Unable to update:
 javax.net.ssl.SSLHandshakeException:
 sun.security.validator.ValidatorException: PKIX path validation
 failed: java.security.cert.CertPathValidatorException: timestamp check
 failed
at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown
 Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source)
at
 com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown
 Source)
at
 com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown
 Source)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown
 Source)
at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown
 Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown
 Source)
at
 com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown
 Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown
 Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown
 Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown
 Source)
at

 sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown
 Source)
at
 sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown
 Source)
at
 sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(Unknown
 Source)
at

 com.google.appengine.tools.admin.ServerConnection.connect(ServerConnection.java:
 338)
at

 com.google.appengine.tools.admin.ServerConnection.send(ServerConnection.java:
 133)
at

 com.google.appengine.tools.admin.ServerConnection.post(ServerConnection.java:
 82)
at

 com.google.appengine.tools.admin.AppVersionUpload.send(AppVersionUpload.java:
 532)
at

 com.google.appengine.tools.admin.AppVersionUpload.beginTransaction(AppVersionUpload.java:
 349)
at

 com.google.appengine.tools.admin.AppVersionUpload.doUpload(AppVersionUpload.java:
 111)
at
 com.google.appengine.tools.admin.AppAdminImpl.update(AppAdminImpl.java:
 56)
at

 com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy(AppEngineBridgeImpl.java:
 271)
at

 com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace(DeployProjectJob.java:
 145)
at

 org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:
 38)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
 Caused by: sun.security.validator.ValidatorException: PKIX path
 validation failed: java.security.cert.CertPathValidatorException:
 timestamp check failed
at sun.security.validator.PKIXValidator.doValidate(Unknown Source)
at sun.security.validator.PKIXValidator.doValidate(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown
 Source)
at sun.security.validator.Validator.validate(Unknown Source)
at
 com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(Unknown
 Source)
at

 com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown
 Source)
at

 com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown
 Source)
... 23 more
 Caused by: java.security.cert.CertPathValidatorException: timestamp
 check failed
at
 sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(Unknown
 Source)
at
 sun.security.provider.certpath.PKIXCertPathValidator.doValidate(Unknown
 Source)
at
 sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(Unknown
 Source)
at java.security.cert.CertPathValidator.validate(Unknown Source)
... 30 more
 Caused by: java.security.cert.CertificateNotYetValidException:
 NotBefore: Fri Mar 05 04:06:05 CET 2010
at sun.security.x509.CertificateValidity.valid(Unknown Source)
at sun.security.x509.X509CertImpl.checkValidity(Unknown Source)
at
 sun.security.provider.certpath.BasicChecker.verifyTimestamp(Unknown
 Source)
at sun.security.provider.certpath.BasicChecker.check(Unknown Source)
  ... 34 more
 What am I doing wrong?

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[appengine-java] Re: Spring Roo + GWT Demo

2010-06-02 Thread Roger Itai

You can search Deploy to Google App Engine on this post
http://blog.springsource.com/2010/06/02/using-springsource-tool-suite-2-3-3-m1-with-roo-and-gwt/

On 28 maio, 15:44, caritos ecari...@gmail.com wrote:
Looking for documentation to deploy Spring Roo + GWT + STS on GAE.

On May 28, 11:03 am, geoaxis geoa...@gmail.com wrote:

Hello,
I believe that portions of the code for GWT is already in the GWT
release.

You can try out theROOspecific stuff with STS (screen cast
herehttp://www.thescreencast.com/2010/05/how-to-gwt-roo.html)

--
Shahzada Hatim
@geoaxis on twitter, irc.freenode.net/#spring

On May 23, 5:44 pm, yonny yon...@googlemail.com wrote:

Hi all,
Has the code for theroo+gwt demo at Google IO by Ben Alex and
Bruce Johnson been provided for download.. I'd like to have a look at
how they implemented the relationships.Any help would be gratly
appreciated.Thanks

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[appengine-java] the support to JPA

2010-06-02 Thread Tao

Hi everyone

in the tuto, why there is so few articles with JPA?

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[appengine-java] Uploading to blobstore gives OutOfMemoryError

2010-06-02 Thread Jean Hsu

Hi all,

I am trying to set up a basic file upload to blobstore,  but I get
this OutOfMemoryError:

WARNING: Error for /_ah/upload/
aghvbWdkcmVzc3IcCxIVX19CbG9iVXBsb2FkU2Vzc2lvbl9fGMACDA
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2786)
at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:71)
at
javax.mail.internet.MimeMultipart.readTillFirstBoundary(MimeMultipart.java:
316)
at javax.mail.internet.MimeMultipart.parse(MimeMultipart.java:186)
at javax.mail.internet.MimeMultipart.getCount(MimeMultipart.java:109)
at
com.google.appengine.api.blobstore.dev.UploadBlobServlet.handleUpload(UploadBlobServlet.java:
135)
at com.google.appengine.api.blobstore.dev.UploadBlobServlet.access
$000(UploadBlobServlet.java:72)
at com.google.appengine.api.blobstore.dev.UploadBlobServlet
$1.run(UploadBlobServlet.java:100)
at java.security.AccessController.doPrivileged(Native Method)
at
com.google.appengine.api.blobstore.dev.UploadBlobServlet.doPost(UploadBlobServlet.java:
98)
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:
511);

I used the Memory Analyzer on Eclipse and it said that the memory leak
suspect is QueuedThreadPool.  I found this information about a memory
leak bug:

http://jira.codehaus.org/browse/JETTY-1188

How can I figure out what release of jetty is running locally?  It
looks like they fixed this in version 6.1.23:

http://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=11160version=16044

Has anyone else had this issue?

Thanks,
Jean

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[appengine-java] Re: Spring Roo + GWT Demo

2010-06-02 Thread EN

Scroll down for the Deploy to Google App Engine section:
http://blog.springsource.com/2010/06/02/using-springsource-tool-suite-2-3-3-m1-with-roo-and-gwt/

On May 30, 11:42 am, Marcel Overdijk marceloverd...@gmail.com wrote:
Yes would be cool if they finally share the code.
It was a big announcement and people want to try it out, but it lacks
information now...

On May 28, 8:44 pm, caritos ecari...@gmail.com wrote:

Looking for documentation to deploy Spring Roo + GWT + STS on GAE.

On May 28, 11:03 am, geoaxis geoa...@gmail.com wrote:

Hello,
I believe that portions of the code for GWT is already in the GWT
release.

You can try out theROOspecific stuff with STS (screen cast
herehttp://www.thescreencast.com/2010/05/how-to-gwt-roo.html)

--
Shahzada Hatim
@geoaxis on twitter, irc.freenode.net/#spring

On May 23, 5:44 pm, yonny yon...@googlemail.com wrote:

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[appengine-java] Nested Embedded Classes do not work with GAE 1.3.4?

2010-06-02 Thread Johnny

I have a simple 3 class example:

@PersistenceCapable
public class MyUser {
  @Persistent
  @Embedded
  private ContactDetails contactInfo;
...
}

@PersistenceCapable
@EmbeddedOnly
public class ContactDetails {
  @Persistent
  @Embedded
  private MyPostalAddress address
...
}

@PersistenceCapable
@EmbeddedOnly
public class MyPostalAddress {
  @Persistent
  private String postalAddress;
...
}

My main class
{
...
MyPostalAddress addr = new MyPostalAddress();
addr.setPostalAddress(123 Main St.);

ContactDetails cd = new ContactDetails();
cd.setAddress(addr);

MyUser user = new MyUser();
user.setContactInfo(cd).

pm.makePersistent(newUser);
tx.commit();
}



Once the makePersistent() call is invoked I receive the following
stacktrace.  If I don't have a nested embedded class and simply move
the MyPostalAddress out of ContactDetails and instead embed it into
MyUser everything works.  So I have 2 questions:

(1) The DataNucleus documentation (http://www.datanucleus.org/products/
accessplatform/jdo/orm/embedded.html#NestedPC) explicitly says the
nested embedded classes work with JDO but GAE documentation (http://
code.google.com/appengine/docs/java/datastore/
dataclasses.html#Embedded_Classes) doesn't mention that it does or
doesn't.  GAE only has a single example of an Embedded Class and that
is an inner class on top.  I have tried different paths but they all
point to GAE not supporting nested (more than 1 level deep) Embedded
Classes. Can anyone confirm or refute my conclusion?

(2)  Furthermore,  in my nested embedded class I also tried to have a
property that was a full entity onto itself (requires its own space)
and that was rejected.  I actually tried this model first and once
that didn't work I tried the simple example I gave above. My
stacktrace was different for this.  It was along the lines of index: 5
is out of bounds type message.  I didn't reproduce this since I
modified my code but it's all the same. So if somehow (show me please)
nested embedded classes work do they support non-simple properties
that are actually fully persistable entities themselves?

Thanks in advance.

STACKTRACE


HTTP ERROR 500

Problem accessing /register.action. Reason:

Specified class class java.lang.String is not persistable

Caused by:

javax.jdo.JDOFatalUserException: Specified class class
java.lang.String is not persistable
at
org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:
354)
at
org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:
674)
at
org.datanucleus.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:
694)
at
com.camelspeed.core.service.authentication.DefaultUserRegistrationServiceImpl.register(DefaultUserRegistrationServiceImpl.java:
56)
at
com.camelspeed.web.action.RegisterActionBean.register(RegisterActionBean.java:
48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:
100)
at net.sourceforge.stripes.controller.DispatcherHelper
$6.intercept(DispatcherHelper.java:467)
at
net.sourceforge.stripes.controller.ExecutionContext.proceed(ExecutionContext.java:
158)
at
net.sourceforge.stripes.controller.BeforeAfterMethodInterceptor.intercept(BeforeAfterMethodInterceptor.java:
113)
at
net.sourceforge.stripes.controller.ExecutionContext.proceed(ExecutionContext.java:
155)
at
net.sourceforge.stripes.controller.ExecutionContext.wrap(ExecutionContext.java:
74)
at
net.sourceforge.stripes.controller.DispatcherHelper.invokeEventHandler(DispatcherHelper.java:
465)
at
net.sourceforge.stripes.controller.DispatcherServlet.invokeEventHandler(DispatcherServlet.java:
278)
at
net.sourceforge.stripes.controller.DispatcherServlet.service(DispatcherServlet.java:
160)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
511)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1166)
at
net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:
247)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at org.springframework.security.web.FilterChainProxy
$VirtualFilterChain.doFilter(FilterChainProxy.java:343)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:
109)
at
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:

[appengine-java] stuck indexes ?

2010-06-02 Thread Bruce

Hi,
I have an app at 'omwatcher.appspot.com' with a very small database,
yet two indexes seem to be stuck with Status=Building.   Can someone
help?
Thanks.

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Re: [appengine-java] simple relation

Thanks Bill
I have experience with hibernate thats why i thought it could be
possible.

On Thu, Jun 3, 2010 at 12:00 AM, Bill Milligan bill.milli...@gmail.comwrote:


 I believe you're going to have to change this to

 class User {
 String name;
 List String workNames; // or List Long workIds;
 }

 class Work {
 String name;
 String userName; // or Long userId;
 }

 This is actually you'd design this under the MDA paradigm, actually.  You
 need to be able to change each independently of the other.  As far as
 automatic population, like an ORM would do, I don't think this is
 possible.  You'll have to do this manually.  Honestly, you won't lose much
 by doing two queries.

 On Wed, Jun 2, 2010 at 2:12 PM, RAVINDER MAAN rsmaan...@gmail.com wrote:

 Thank you so much for your answer Bill
 yes you are rite the way i wrote its many to many relation.Actually I
 want relation as below

 class User{
 Long id;
 String username;
 ListWork workList;
 }

 class Work{
 Long id;
 String workname;
 String username;

 }
you can see work class has username and user class too has username.In
 both classes primary key is id. I just want to know is there any way to get
 workList populated automatically on retrieval of user object.we can do it
 with 2 queries easily.we can reteriev user first then we can retrieve work
 object with second query.


 On Wed, Jun 2, 2010 at 10:35 PM, Bill Milligan 
 bill.milli...@gmail.comwrote:


 Are you trying one-to-many or many-to-many?  By using a third table it
 sounds like you're trying to do many-to-many, not one-to-many.

 As best I can determine, the only real way to do this in GAE is to have a
 User class with a collection of string properties, containing the list of
 all Work ids.  In this case a bidirectional link would be probably quite
 useful, so that a Work could be identified by its User id.

 Here's a scenario:  Retrieve User by user id.  Then, retrieve all Works
 in the list of work ids owned by the User.

 Note that this is not true object composition, with a User containing a
 List of Collection, but rather an indirect reference.  This pattern is
 useful in a lot of circumstances where you want to be able to break up your
 object model into more modular deployable applications.  On the other hand,
 I'd hate to be completely boxed in by this restriction.

 I'm just getting started with GAE so I'm very much not an expert.  I'd
 love to know anybody else's thoughts on the matter.

 On Wed, Jun 2, 2010 at 12:10 AM, RAVINDER MAAN rsmaan...@gmail.comwrote:

 Hello all
   can anybody please tell me how to implement simple one many
 relation in java.I have user table and work table .Any user can do
 many type of works.In user table i have userid but it is not primary
 key of the user table.Then i have work table which has workid it is
 also not primary key of the table.Normally in relation db we ca make
 third table table which contains workid for every userid.What how can
 we implement this thing appengine datastore.I want to have collection
 all works in user object .can anybody please tell me how to define
 this mapping?please note that in userid and workid are not primary
 keys in both objects or tables.
 Thanks in adavance.

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 --
 Regards,
 Ravinder Singh Maan

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Re: [appengine-java] stuck indexes ?

I see same problem it takes hours to build indexes.is there any faster way?

On Thu, Jun 3, 2010 at 10:03 AM, Bruce h...@alum.rpi.edu wrote:

 Hi,
 I have an app at 'omwatcher.appspot.com' with a very small database,
 yet two indexes seem to be stuck with Status=Building.   Can someone
 help?
 Thanks.

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Ravinder Singh Maan

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Re: [appengine-java] simple relation

2010-06-02 Thread John Patterson

You will need to use an ObjectDatastore instead of JDO if you want to  
use direct references as in your example.


http://code.google.com/p/twig-persist/

If you @Embed Work in User you can retrieve all in a single query

http://code.google.com/p/twig-persist/wiki/Configuration#Storage_Options

On 3 Jun 2010, at 11:46, RAVINDER MAAN wrote:


Thanks Bill
I have experience with hibernate thats why i thought it could be  
possible.


On Thu, Jun 3, 2010 at 12:00 AM, Bill Milligan bill.milli...@gmail.com 
 wrote:


I believe you're going to have to change this to

class User {
String name;
List String workNames; // or List Long workIds;
}

class Work {
String name;
String userName; // or Long userId;
}

This is actually you'd design this under the MDA paradigm,  
actually.  You need to be able to change each independently of the  
other.  As far as automatic population, like an ORM would do, I  
don't think this is possible.  You'll have to do this manually.   
Honestly, you won't lose much by doing two queries.


On Wed, Jun 2, 2010 at 2:12 PM, RAVINDER MAAN rsmaan...@gmail.com  
wrote:

Thank you so much for your answer Bill
yes you are rite the way i wrote its many to many  
relation.Actually I want relation as below


class User{
Long id;
String username;
ListWork workList;
}

class Work{
Long id;
String workname;
String username;

}
   you can see work class has username and user class too has  
username.In both classes primary key is id. I just want to know is  
there any way to get workList populated automatically on retrieval  
of user object.we can do it with 2 queries easily.we can reteriev  
user first then we can retrieve work object with second query.



On Wed, Jun 2, 2010 at 10:35 PM, Bill Milligan bill.milli...@gmail.com 
 wrote:


Are you trying one-to-many or many-to-many?  By using a third table  
it sounds like you're trying to do many-to-many, not one-to-many.


As best I can determine, the only real way to do this in GAE is to  
have a User class with a collection of string properties, containing  
the list of all Work ids.  In this case a bidirectional link would  
be probably quite useful, so that a Work could be identified by its  
User id.


Here's a scenario:  Retrieve User by user id.  Then, retrieve all  
Works in the list of work ids owned by the User.


Note that this is not true object composition, with a User  
containing a List of Collection, but rather an indirect reference.   
This pattern is useful in a lot of circumstances where you want to  
be able to break up your object model into more modular deployable  
applications.  On the other hand, I'd hate to be completely boxed in  
by this restriction.


I'm just getting started with GAE so I'm very much not an expert.   
I'd love to know anybody else's thoughts on the matter.


On Wed, Jun 2, 2010 at 12:10 AM, RAVINDER MAAN rsmaan...@gmail.com  
wrote:

Hello all
  can anybody please tell me how to implement simple one many
relation in java.I have user table and work table .Any user can do
many type of works.In user table i have userid but it is not primary
key of the user table.Then i have work table which has workid it is
also not primary key of the table.Normally in relation db we ca make
third table table which contains workid for every userid.What how can
we implement this thing appengine datastore.I want to have collection
all works in user object .can anybody please tell me how to define
this mapping?please note that in userid and workid are not primary
keys in both objects or tables.
Thanks in adavance.

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[appengine-java] Re: Transaction exception when not using a transaction ?

2010-06-02 Thread Millisecond

Even though you're not using transactions, I think it's trying to make
the .close() call atomic (maybe with an internal implicit
transaction), failing or succeeding as a whole.  And as I understand
it, entities not in the same group can be stored on separate machines
so can't be operated on atomically.

I've worked around this by calling a flush() after most any change on
a PM-managed object until close().  If this has a huge number of reqs/
s, you may want to re-architect to get the objects in the same entity
group as multiple flushes won't be very efficient.

-C

On Jun 2, 8:26 pm, JD liva...@gmail.com wrote:
 I have a PersistenceManager

 PersistenceManager pm = PMF.get().getPersistenceManager();

 which I use to do a bunch of operations on different objects, but
 WITHOUT transaction (run queries, store entities and lookup entities).

 I then close the manager with pm.close() and get this obscure error
 that complains about multiple entity groups inside a transaction even
 though I am not using a transaction (you will notice that the error is
 not the usual one where it prints the different entity groups).

 I am not 100% confident but have the impression that this error
 started happening with the 1.3.4 release.
 100% reproducible use case. Would appreciate input from App Engine
 developers.

 com.myapp.servlet.task.PopulateUserPages doAction: Illegal argument
 javax.jdo.JDOFatalUserException: Illegal argument
         at
 org.datanucleus.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(Nuc 
 leusJDOHelper.java:
 344)
         at
 org.datanucleus.jdo.JDOPersistenceManager.close(JDOPersistenceManager.java:
 281)
         at com.myapp.dao.jdo.DatastoreService.release(DatastoreService.java:
 631)
         at
 com.myapp.servlet.AbstractBaseServlet.releaseService(AbstractBaseServlet.ja 
 va:
 243)
         at
 com.myapp.servlet.task.PopulateUserPages.doAction(PopulateUserPages.java:
 132)
         at com.myapp.servlet.task.Dispatcher.doAction(Dispatcher.java:35)
         at com.myapp.servlet.task.TaskServlet.doAction(TaskServlet.java:36)
         at
 com.myapp.servlet.AbstractBaseServlet.doGenericAction(AbstractBaseServlet.j 
 ava:
 194)
         at
 com.myapp.servlet.AbstractBaseServlet.doPost(AbstractBaseServlet.java:
 84)
         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:
 511)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1166)
         at
 com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlo 
 bUploadFilter.java:
 97)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionF 
 ilter.java:
 35)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans 
 actionCleanupFilter.java:
 43)
         at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter(ServletHandler.java:1157)
         at
 org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
 388)
         at
 org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
 216)
         at
 org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
 182)
         at
 org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
 765)
         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
 418)
         at
 com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionH 
 andlerMap.java:
 238)
         at
 org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
 152)
         at org.mortbay.jetty.Server.handle(Server.java:326)
         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 542)
         at org.mortbay.jetty.HttpConnection
 $RequestHandler.headerComplete(HttpConnection.java:923)
         at
 com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequ 
 estParser.java:
 76)
         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
         at
 com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceReques 
 t(JettyServletEngineAdapter.java:
 135)
         at
 com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
 250)
         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
 $6.handleBlockingRequest(RuntimePb.java:5838)
         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
 $6.handleBlockingRequest(RuntimePb.java:5836)
         at
 com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingAp 
 plicationHandler.java:
 24)
         at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
 398)

[appengine-java] Performance issue for GAE auto-restart

2010-06-02 Thread Tin

Hi all:

We're using GAE to develop our project, but I found I have a
performance issue, when checking the logs I found the GAE will auto-
restart every 30-60 sec.
Someone tell me this's because if the web app wasn't used much, GAE
will dispose the instances, and after that made a load request to spin
up a new VM and servlet container.
So I write a very simple testing for confirm this:

-- Test Servlet --
   request.count = Counter.createOrIncrement(JspTest, 1);  // using
JPA to store a counter
   forward '/test.jsp';

-- Test JSP --
%...@page contentType=text/html;charset=UTF-8 language=java
isELIgnored=false %
%...@include file=/includes/header.jsp%
link rel=stylesheet type=text/css media=screen, print href=css/
list.css /
/head
body
h1
  img src=img/icon_memo.png align=absmiddle/
  Count: ${count}  !--  GET THE COUNT FROM REQUEST FOR VIEW  --
/h1
%...@include file=/includes/footer.jsp%

-- Log Messages --
06-02 10:27PM 57.036 com.liyue.web.ContextListener contextInitialized:
Web context inited.  --- FIRST REQUEST
06-02 10:27PM 58.036 javax.servlet.ServletContext log: Action servlet
initialized.
06-02 10:28PM 06.379 [...].stdout: com.liyue.web.Test spend : 8341
ms  --- SPEND 8sec FOR INIT AND EXEC
...
06-02 10:28PM 39.401 [...].stdout: com.liyue.web.Test spend : 56 ms
--- VERY GOOD PERFORMANCE
...
06-02 10:30PM 03.502 [...].stdout: com.liyue.web.Test spend : 60 ms
--- VERY GOOD PERFORMANCE
...
06-02 10:32PM 52.688 com.liyue.web.ContextListener contextInitialized:
Web context inited.  --- AUTO-RELOAD 
06-02 10:32PM 53.636 javax.servlet.ServletContext log: Action servlet
initialized.
06-02 10:33PM 01.669 [...].stdout: com.liyue.web.Test spend : 8032
ms  --- VERY POOR PERFORMANCE
...

I have no idea for how to solve this issue, but this may make us give
up using GAE, because our boss and customers couldn't accept this poor
performace.
But we have write lots of code for GAE, if you have any idea could
help us please tell me.

THANKS VERY VERY MUCH in advance !!!

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Re: [google-appengine] Re: Can't enable billing

2010-06-02 Thread Kazuki Kyakuno

thanks!
I'll wait to fix it.

2010/6/2 Jason (Google) apija...@google.com:
 There was a substantial backlog in the billing pipeline starting late last
 week, which caused some discrepancies between the billing status that was
 reported in the Admin Console and the quotas that were actually being
 enforced. We're working on processing the backlog and preparing a fix for
 this so it shouldn't happen again going forward.
 If you still have specific billing issues, please use the billing issues
 form so you don't have to share your order information publicly.
 http://code.google.com/support/bin/request.py?contact_type=AppEngineBillingSupport
 - Jason

 On Mon, May 31, 2010 at 2:35 AM, kaz...@abars abars...@gmail.com wrote:

 Me too...
 My another two apps have no problem.
 But my one app can't set to billing mode.

 Billing history:
 2010-05-14 19:03:35 abars...@gmail.com   Billing Setup Successful
 $0.00
 2010-05-14 19:02:30 abars...@gmail.com   Billing Setup Started

 but billing status is displayed as free.

 Billing Status: Free
 This application is operating within the free quota levels. Enable
 billing to grow beyond the free quotas. Learn more

 Billing Administrator: None
 Since this application is operating within the free quota levels,
 there isn't a billing administrator.
 Current Balance: n/a Usage History
 Resource Allocations:
 ResourceBudget  Unit Cost   Paid Quota  Free Quota
  Total Daily Quota
 CPU Timen/a  $0.10/CPU hour n/a  6.506.50 CPU hours
 Bandwidth Out   n/a  $0.12/GByten/a  1.001.00 GBytes
 Bandwidth Inn/a  $0.10/GByten/a  1.001.00 GBytes
 Stored Data n/a  $0.005/GByte-day   n/a  1.001.00
 GBytes
 Recipients Emailed  n/a  $0.0001/Email  n/a  2,000.00
  2,000.00 Emails
 Max Daily Budget:   n/a




 On 5月29日, 午後3:38, Hugo Visser botte...@gmail.com wrote:
  At the moment, according to thebillingpage my app is operating in
  free mode. When I look at the quotas on the dashboard however it is
  using the quotas that I've set on thebillingpage, while again
  thebillingstatus is displayed as free.
 
  On May 29, 2:22 am, Ikai L (Google) ika...@google.com wrote:
 
 
 
   It looks likebillingis a bit slow. The UI may say that you are not in
   the
   queue, but this is mislabeled. Whenbillingprocesses, your app will
   automatically be updated to the correct status.
 
   On Fri, May 28, 2010 at 1:44 PM, Ikai L (Google) ika...@google.com
   wrote:
 
I'm seeing the same issue. Let me follow up on this.
 
On Fri, May 28, 2010 at 12:04 PM, G badbackj...@googlemail.com
wrote:
 
I'm trying to enablebilling, and it seems to be working - I check
out
and then the status says it's updating for 15 or so minutes, but
after
that it goes back to free with the EnableBilling button visible.
 
Is there some extra step I should be doing?
 
Thanks
 
G
 
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Developer Programs Engineer, Google App Engine
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Twitter:http://twitter.com/app_engine
Reddit:http://www.reddit.com/r/appengine
 
   --
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   Developer Programs Engineer, Google App Engine
   Blog:http://googleappengine.blogspot.com
   Twitter:http://twitter.com/app_engine
   Reddit:http://www.reddit.com/r/appengine

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[google-appengine] Re: Updating Google App Engine datastore

2010-06-02 Thread Víctor Mayoral

Hey Tristan!

Thanks for your answer. I will check the docs again and take a look at
the low level API. The notification + trigger method seems pretty
intelligent i will also check that too.
But I was just wondering, isn't there something like a framework for
this types of jobs?.

Again, thanks

Víctor.


On 2 jun, 00:41, Tristan tristan.slomin...@gmail.com wrote:
 Not sure how it would work in JDO but its simple to add properties in
 low-level datastore.

 I store my entities with a version property, when I update the entity,
 I change the version and change my code to either intialize a non-
 existing property on an old entity, or to delete a deprecated
 property. This happens lazily (only when the entity is actally used).
 You can also include a counter of how many entities were updated from
 old to new and have a flag trigger when 100% of updates are complete.
 Then in the next version of the code you can remove the updating
 method since all old entities were lazily updated. An alternative
 would be to set notification at 90% or some other percentage, and then
 trigger a task that cleans up the rest of the entities. I use this
 approach to keep my data consistent without the need for hugely
 intensive datastore scans to update when changes happen.

 Hope this will give you some ideas.

 Cheers!

 Tristan

 On Jun 1, 6:28 am, Víctor Mayoral v.mayor...@gmail.com wrote:



  Hello,
  I've just an applications using GWT and GAE. After reading the docs
  and doing some examples I decided to begin coding but soon I reach
  something tricky.

  My application data would be at the GAE datastore using JDO. I want to
  assume
  that the app will live. Let me explain this:
  The entities at the datastore will change. This means that some
  properties would be added and some of them maybe removed what leaves
  me with a ton of exceptions to handle. Knowing this, which should be
  the way to update the datastore entities? One by one after a change
  is
  made? Should I handle exceptions and then change just the entitie
  requested? Is there a way to do this cleaner?

  I've been thinking about how to do this stuff with my actual
  knowledge
  and i think that the most logical way to proceed is get the object,
  remove it from the database, create a new one based on this old
  object
  and then persist it again.

  To sum up the question is about if there's a way to add a property to
  an stored entitie in the datastore (GAE) easily.

  I hope you to understand my lines. Any suggestion would be
  appreciated.

  Thanks,

  Víctor.

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[google-appengine] tasks and queues in google app engine

2010-06-02 Thread Sandeep Arneja

How do i cancel a task / queue which has already been scheduled? What
is the point of the task handler?

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[google-appengine] Re: Updating Google App Engine datastore

2010-06-02 Thread Tristan

I haven't seen a framework that does data versioning like that.. but I
haven't looked very hard as I rolled my own abstraction layer with the
datastore...

Here's an excerpt from some stuff I wrote a while back and never got
around to publishing. It's a little outdated from what I do nowadays,
but it captures the essence of the framework that can do updating:

===

Entity Versions and Lazy Migration

Before diving into data versioning, let's quickly go over how we will
use the methods we created. First, let's create a BaseEntity object in
the datastore:

  ...

  BaseEntity myEntity = new BaseEntity();
  myEntity.setCreatedAt(new Date());
  myEntity.setUpdatedAt(myEntity.getCreatedAt());
  Key myEntityKey = datastore.put(myEntity.toEntity());

  ...

And that's how it's done. (Yes, we did not set version, more on that
later). Below is how we would read from the datastore (assuming we
have the entity key ready):

  ...

  Entity entity = datastore.get(myEntityKey);
  BaseEntity myEntity = new BaseEntity();
  entity = myEntity.fromEntity(entity);

  ...

After the call to fromEntity(Entity entity) above, myEntity is now
updated with the data from the datastore and is ready to be used. And
lastly, this is how we would update an entity in the datastore:

  ...

  Entity entity = datastore.get(myEntityKey);
  BaseEntity myEntity = new BaseEntity();
  entity = myEntity.fromEntity(entity);
  myEntity.setUpdatedAt(new Date());
  myEntityKey = datastore.put(myEntity.updateEntity(entity));

  ...

So you can see why we have toEntity() and updateEntity(Entity entity)
as separate methods. The updateEntity(Entity entity) does not touch
the entity key, therefore ensuring that when we execute a put to the
datastore, it will update the exact same entity instead of creating a
new one.

Now I have to confess. Our implementation of BaseEntity interface is
not quite correct. We are going to have to modify it in order to take
advantage of data versioning.

To illustrate how versioning works, let's assume that for some stupid
reason we want to store the createdAt date as a string! So we change
our implementation as follows:

public class BaseEntityImpl implements BaseEntity {

  /* variables */
  private String createdAt;
  private Date updatedAt;
  private Long version;

  ...

}

Ok, after making the above change we make sure that the interface and
the getters and setters are changed so that everything compiles. We
also change our fromEntity(Entity entity) method to reflect the new
state of things:

  ...

  @Override
  public Entity fromEntity(Entity entity){
setCreatedAt((String) entity.getProperty(BaseEntity.NcreatedAt));
setEntityKey(entity.getKey());
setUpdatedAt((Date) entity.getProperty(BaseEntity.NupdatedAt));
setVersion((Long) entity.getProperty(BaseEntity.Nversion));
return entity;
  }

  ...


But here's a catch! What if you have 10,000,000 entities already in
your production datastore where createdAt properties are stored as
Date objects? This is where data versioning becomes useful to do, what
I like to call, Lazy Migration (the idea is probably not new, so you
might know it as something else).

The concept behind lazy migration is to do the data migration from old
version to new version only when that data is actually read. Since we
are working with Google App Engine and we are paying for CPU cycles,
this may save you some money, especially if your schema happens to
change more than it should. Let's go back to our implementation and
set it up to support this concept.

First, we will go over what the implementation should have looked like
when createdAt was stored as Date:

public class BaseEntityImpl implements BaseEntity {

  /* variables */
  private Date createdAt;
  private Date updatedAt;
  private Long version = 1;

  ...

}

What we changed was the version number to 1. Now that we changed our
model to using String for storage, the implementation will look like:

public class BaseEntityImpl implements BaseEntity {

  /* variables */
  private String createdAt;
  private Date updatedAt;
  private Long version = 2;

  ...

}

And here is how we do the lazy migration inside fromEntity(Entity
entity):

  ...

  @Override
  public Entity fromEntity(Entity entity){
Object property;

Long version = ((Long) entity.getProperty(BaseEntity.Nversion));

// convert from old version (Date) to new version (String)
property = entity.getProperty(BaseEntity.NcreatedAt));
if (version.equals(1)){ // old version, do conversion
  setCreatedAt(((Date) property).toString());
  entity.setProperty(BaseEntity.NcreatedAt, getCreatedAt());
} else { // new version, no worries
  setCreatedAt((String) property));
}

setEntityKey(entity.getKey());
setUpdatedAt((Date) entity.getProperty(BaseEntity.NupdatedAt));

// we converted any old data to new data above, so set the new
version
entity.setProperty(BaseEntity.Nversion, getVersion());
return entity;
  }

[google-appengine] Re: Unscheduled downtime/problems lately

2010-06-02 Thread Bay

Yes! A lot! Further someone with admin rights over this group has
removed several threads regarding these issues. Do you want us to
report them or not?

You can look at any random app with 10k dynamic-page visitors or more
per day and you'll find a lot of dropped requests. Some of them go to
the logs, others do not and simply serve the famous 500-error page
without us admins/developers having any chance of knowing what is
wrong or even realizing that there is an issue (before users start
emailing us with screendumps og 500-pages that do not correspond with
any log-entry).

Further, just have a look at the System Status graphs (those that are
still working) - most of the datastore query graphs are red, and have
been red for more than three days... Please do not say that you are
not aware of this...



On Jun 2, 12:34 am, Ikai L (Google) ika...@google.com wrote:
 The post-mortem should address the outage as well as the latency leading up
 to the outage.

 We're keeping an eye on latency now. Are you experience latency in your
 application?





 On Tue, Jun 1, 2010 at 3:31 PM, Millisecond millisec...@gmail.com wrote:
  Thanks Ikai, I look forward to reading the post-mortem.  The last one
  was indeed very good.

  Will the post-mortem address the dramatically increased latency since
  the 25th?  It's ongoing and has already caused tens of thousands of
  errors on our site alone.  As far as I can tell, there's been no
  official communication regarding that.

  And it's still continuing with 1500ms+ for a lot of today:

 http://code.google.com/status/appengine/detail/datastore/2010/06/01#a...

  -C

  On Jun 1, 3:16 pm, Ikai L (Google) ika...@google.com wrote:
   I just wanted to let you guys know to hang in there. We're working on a
   post-mortem describing what went wrong and steps we are taking to prevent
   this from happening again. I don't have an ETA for this yet, but we've
  done
   this before (
 http://groups.google.com/group/google-appengine/browse_thread/thread/...)
   and are committed to as much transparency as we can with regards to these
   issues with you guys.

   On Tue, Jun 1, 2010 at 2:59 PM, Mark mar...@gmail.com wrote:
+1 as worried, I'm investing time in app engine and this is quite
discouraging to say the least! How often does this happen? (I don't
have a live app yet), but should I abandon app engine now before
getting myself in trouble?

On May 27, 1:32 pm, Jody Belka j...@jj79.org wrote:
 And what do you know, no-one from Google has made any response
  whatsoever
to
 this thread. And yet we know they are around, they occasionally do
  write
 messages after all. Very disappointing.

 On 25 May 2010 21:51, Waleed Abdulla wal...@ninua.com wrote:

  It's definitely worrisome. My app is down at the moment, my task
  queue
  backlog is at 4 days, and I'm very disappointed.

  On Tue, May 25, 2010 at 12:46 PM, Flips p...@script-network.com
wrote:

  These latency spikes are really annoying. Will the business app
  engine
  edition use the same bigtable cluster as we do?

  On May 25, 9:03 pm, James jamesk...@gmail.com wrote:
   +1

   On May 25, 10:13 am, Jody Belka j...@jj79.org wrote: From
reading
  this list, there appear to have been quite few incidents lately
where multiple sites start reporting errors, with the status
  page
  showing

   ...

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[google-appengine] Datastore high latency

2010-06-02 Thread Xiaad.com

  Hi,

Since yesterday, the latency of the datastore is very high and no
message at all either on http://code.google.com/status/appengine; or
in the group http://groups.google.com/group/google-appengine-downtime-
notify.

Could someone give some infos ?

My service is getting some problems with that (timeout returning 500
errors)...

Thanks,
Seb.

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[google-appengine] Re: Unscheduled downtime/problems lately

2010-06-02 Thread Xiaad.com

  Hi,

My apps got the same problems and so timeout returning 500 errors...
And no message at all either on http://code.google.com/status/
appengine (even if the graph is red) or
in the group http://groups.google.com/group/google-appengine-downtime-
notify.

Could someone work on it ?

Thanks,
Seb.

On 2 juin, 10:05, Bay troels...@gmail.com wrote:
 Yes! A lot! Further someone with admin rights over this group has
 removed several threads regarding these issues. Do you want us to
 report them or not?

 You can look at any random app with 10k dynamic-page visitors or more
 per day and you'll find a lot of dropped requests. Some of them go to
 the logs, others do not and simply serve the famous 500-error page
 without us admins/developers having any chance of knowing what is
 wrong or even realizing that there is an issue (before users start
 emailing us with screendumps og 500-pages that do not correspond with
 any log-entry).

 Further, just have a look at the System Status graphs (those that are
 still working) - most of the datastore query graphs are red, and have
 been red for more than three days... Please do not say that you are
 not aware of this...

 On Jun 2, 12:34 am, Ikai L (Google) ika...@google.com wrote:

  The post-mortem should address the outage as well as the latency leading up
  to the outage.

  We're keeping an eye on latency now. Are you experience latency in your
  application?

  On Tue, Jun 1, 2010 at 3:31 PM, Millisecond millisec...@gmail.com wrote:
   Thanks Ikai, I look forward to reading the post-mortem.  The last one
   was indeed very good.

   Will the post-mortem address the dramatically increased latency since
   the 25th?  It's ongoing and has already caused tens of thousands of
   errors on our site alone.  As far as I can tell, there's been no
   official communication regarding that.

   And it's still continuing with 1500ms+ for a lot of today:

  http://code.google.com/status/appengine/detail/datastore/2010/06/01#a...

   -C

   On Jun 1, 3:16 pm, Ikai L (Google) ika...@google.com wrote:
I just wanted to let you guys know to hang in there. We're working on a
post-mortem describing what went wrong and steps we are taking to 
prevent
this from happening again. I don't have an ETA for this yet, but we've
   done
this before (
  http://groups.google.com/group/google-appengine/browse_thread/thread/...)
and are committed to as much transparency as we can with regards to 
these
issues with you guys.

On Tue, Jun 1, 2010 at 2:59 PM, Mark mar...@gmail.com wrote:
 +1 as worried, I'm investing time in app engine and this is quite
 discouraging to say the least! How often does this happen? (I don't
 have a live app yet), but should I abandon app engine now before
 getting myself in trouble?

 On May 27, 1:32 pm, Jody Belka j...@jj79.org wrote:
  And what do you know, no-one from Google has made any response
   whatsoever
 to
  this thread. And yet we know they are around, they occasionally do
   write
  messages after all. Very disappointing.

  On 25 May 2010 21:51, Waleed Abdulla wal...@ninua.com wrote:

   It's definitely worrisome. My app is down at the moment, my task
   queue
   backlog is at 4 days, and I'm very disappointed.

   On Tue, May 25, 2010 at 12:46 PM, Flips p...@script-network.com
 wrote:

   These latency spikes are really annoying. Will the business app
   engine
   edition use the same bigtable cluster as we do?

   On May 25, 9:03 pm, James jamesk...@gmail.com wrote:
+1

On May 25, 10:13 am, Jody Belka j...@jj79.org wrote: From
 reading
   this list, there appear to have been quite few incidents lately
 where multiple sites start reporting errors, with the status
   page
   showing

...

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[google-appengine] Another easy question

Dear All,
in filter(property_operator, value) could the property_operator be a var?
Could you please tell me how it must be done?
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.

Regards

Massimiliano

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[google-appengine] Buying a new domain...

2010-06-02 Thread Prashant Gupta

Hi,

I have to buy a new domain and link to my apps. I want to know pro or cons
of buying a domain from Apps and Godaddy.

If I buy a domain from Google Apps can I change my domain settings in
GoDaddy?


Thanks,
Prashant

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[google-appengine] Re: Video of App Engine sessions from Google I/O 2010 are up!

2010-06-02 Thread Herbert

oh my god, i was planning to sleep early tonite :P

thank you guys!!!

On Jun 2, 6:03 am, Ikai L (Google) ika...@google.com wrote:
 Hey guys,

 I just wanted to let everyone know that the App Engine sessions from Google
 I/O 2010 are now online for your viewing pleasure. Check them out here:

 http://googlecode.blogspot.com/2010/06/app-engine-teams-trip-to-io-20...

 http://googlecode.blogspot.com/2010/06/app-engine-teams-trip-to-io-20...These
 are geared towards intermediate to advanced App Engine developers. There's a
 lot of good stuff in here - I learned a bunch of stuff attending.

 Happy viewing!

 --
 Ikai Lan
 Developer Programs Engineer, Google App Engine
 Blog:http://googleappengine.blogspot.com
 Twitter:http://twitter.com/app_engine
 Reddit:http://www.reddit.com/r/appengine

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[google-appengine] Re: Video of App Engine sessions from Google I/O 2010 are up!

2010-06-02 Thread Brandon Thomson

Really fantastic stuff in here, every GAE dev should watch them.

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[google-appengine] Static files in newly deployed version not available in the apps domain. (Major problem)

2010-06-02 Thread Tim Hoffman

Hi

We have been trying to deploy a major revision of one of our apps.

Under the specific version 2-0-0.latest...  all the new css/js and
static images are available.

When we make the new version default, the css, js and static files are
accessible via appid.appspot.com

However when accessing the same site via the google apps domain
mapping we are still
getting the old versions css, js and static images.

I have tried removing the apps domain mapping and re-adding it with no
affect.

We have had to revert to the earlier version as all access to the site
is via the apps domain and
its not working with the latest version missing the new css/js.

has anyone got any ideas on how we can address this.

I know absolutely that the problem is not a browser cache, as I have
been checking the css files via wget.

Thanks for any help

regards

Tim

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[google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

2010-06-02 Thread François Masurel

I've the same problem here.

I just added an extra parameter at the end of my urls (ex : ?v=1) to
be able to load them correctly.

François

On 2 juin, 14:19, Tim Hoffman zutes...@gmail.com wrote:
 Hi

 We have been trying to deploy a major revision of one of our apps.

 Under the specific version 2-0-0.latest...  all the new css/js and
 static images are available.

 When we make the new version default, the css, js and static files are
 accessible via appid.appspot.com

 However when accessing the same site via the google apps domain
 mapping we are still
 getting the old versions css, js and static images.

 I have tried removing the apps domain mapping and re-adding it with no
 affect.

 We have had to revert to the earlier version as all access to the site
 is via the apps domain and
 its not working with the latest version missing the new css/js.

 has anyone got any ideas on how we can address this.

 I know absolutely that the problem is not a browser cache, as I have
 been checking the css files via wget.

 Thanks for any help

 regards

 Tim

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Re: [google-appengine] Another easy question

2010-06-02 Thread Robert Kluin

As the page you link to says, it takes a string as the first argument  
-- so, yes. It can take a variable.


myvar = prop 
Kind.all().filter(myvar, 5)


Robert



On Jun 2, 2010, at 3:39, Massimiliano  
massimiliano.pietr...@gmail.com wrote:



Dear All,
in filter(property_operator, value) could the property_operator be a  
var?

Could you please tell me how it must be done? 
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.

Regards

Massimiliano

--

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My Google Wave: massimiliano.pietr...@googlewave.com
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.


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[google-appengine] Status page not working

2010-06-02 Thread François Masurel

The App Engine status page doesn't display fine for me ?  Anybody
having the same problem ?

http://code.google.com/status/appengine

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[google-appengine] Re: DeadlineExceeded on cold hits.

2010-06-02 Thread dloomer

I've been seeing increased DeadlineExceededErrors, and suspecting that
it's an issue outside of my app but not sure.  I'm not sure if a three-
post thread of somewhat similar experiences proves anything or not;
when you refer to the increasingly poor datastore performance is
this something that's documented elsewhere and/or acknowledged by
Google?  I haven't been able to find anything so far indicating a bona
fide known issue, but maybe I'm not looking in the right place.

On Jun 1, 9:21 pm, Brandon Thomson gra...@gmail.com wrote:
 Yes, we are also seeing this. Usually the call at the end of the
 traceback is something related to the filesystem. I think this is
 caused by the increasingly poor datastore performance.

 On Jun 1, 6:16 pm, Dave Peck davep...@gmail.com wrote:



  Hi,

  In the past week, I've seen an alarming number of DeadlineExceeded
  exceptions on cold hits to my applications.

  Most of the stack traces are shallow -- things blow up well before my
  code is hit. Seehttp://pastie.org/988269fora stack trace.

  The `bootstrap.py` file is more-or-less a direct copy of the `main.py`
  from Rietveld.

  Can someone on the App Engine team please point me in the right
  direction here? This is a big change in GAE's behavior in the past
  week, and it is affecting many of my applications (citygoround which
  has been in production for half a year; code-doctor which is under
  development, etc.)

  Cheers,
  Dave Peck- Hide quoted text -

 - Show quoted text -

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Re: [google-appengine] Status page not working

2010-06-02 Thread Barry Hunter

The page content itself is there and looks normal. Just that the CSS
is messed up, this URL:

http://code.google.com/status/appengine/css/compiled.staging.342374464972914085.css

is a 404.

2010/6/2 François Masurel fm2...@mably.com:
 The App Engine status page doesn't display fine for me ?  Anybody
 having the same problem ?

 http://code.google.com/status/appengine

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[google-appengine] Re: DeadlineExceeded on cold hits.

2010-06-02 Thread bFlood

+1

On Jun 2, 11:19 am, dloomer dloo...@gmail.com wrote:
 I've been seeing increased DeadlineExceededErrors, and suspecting that
 it's an issue outside of my app but not sure.  I'm not sure if a three-
 post thread of somewhat similar experiences proves anything or not;
 when you refer to the increasingly poor datastore performance is
 this something that's documented elsewhere and/or acknowledged by
 Google?  I haven't been able to find anything so far indicating a bona
 fide known issue, but maybe I'm not looking in the right place.

 On Jun 1, 9:21 pm, Brandon Thomson gra...@gmail.com wrote:



  Yes, we are also seeing this. Usually the call at the end of the
  traceback is something related to the filesystem. I think this is
  caused by the increasingly poor datastore performance.

  On Jun 1, 6:16 pm, Dave Peck davep...@gmail.com wrote:

   Hi,

   In the past week, I've seen an alarming number of DeadlineExceeded
   exceptions on cold hits to my applications.

   Most of the stack traces are shallow -- things blow up well before my
   code is hit. Seehttp://pastie.org/988269forastack trace.

   The `bootstrap.py` file is more-or-less a direct copy of the `main.py`
   from Rietveld.

   Can someone on the App Engine team please point me in the right
   direction here? This is a big change in GAE's behavior in the past
   week, and it is affecting many of my applications (citygoround which
   has been in production for half a year; code-doctor which is under
   development, etc.)

   Cheers,
   Dave Peck- Hide quoted text -

  - Show quoted text -

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[google-appengine] Unusually slow appengine performance

2010-06-02 Thread ten_foot_ninja

I have noticed during the last couple weeks my appengine app being
slower than usual. My login routine gets maybe 20-30 records from 4
calls to the datastore. This takes about 10 seconds which isn't
acceptable from a user experience point of view.

Also, I know enabling billing increases your quota limits, I've read
on a couple blogs that enabling billing also increases your apps
priority/responsiveness. Can anyone confirm this?
Thanks!

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[google-appengine] app engine datastore seems to be down

2010-06-02 Thread gauri

cannot update my indexes. Is someone else facing the same issue?
Any idea how long this will take to get resolved?

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[google-appengine] Anomaly at Datastore

2010-06-02 Thread Rafael SDM Sierra

Hi, we are with a ver high latency at datastore since yesterday, and I
don't see any message in the system status. Is there someone take care
of it? It's related in some way with Google I/O?

I have an application that handle hundreds of requests per second
during some minutes (some time hours), I tunned my application to use
cache most of time, but it just happens to have dozens of request per
second that hits the base (to puts or gets) and I worry that this
could affect the performance of the application in some way.

Thanks.

Currently, even the System Status board are broken
http://code.google.com/status/appengine/detail/datastore/2010/06/02

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[google-appengine] Verifying Account

2010-06-02 Thread David Grant

Hi,

I use Google Apps at work and at home.  I've already verified my
account for using Google App Engine for my home domain, but when
attempting to verify for my work domain, I am given the following
error message:

The phone number has been sent too many messages or has already been
used to confirm an account

I don't have a separate mobile number for work, so it would appear I
am unable to use Google App Engine for work purposes.  Can this be
addressed please?

Dave Grant

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[google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

Thanks, Tim, for letting me know I'm not going insane.

To the Google guys, this problem seems to have started yesterday
afternoon (1:30-ish PM, EDT) in case it helps you track down the
cause.

On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
 Hi

 We have been trying to deploy a major revision of one of our apps.

 Under the specific version 2-0-0.latest...  all the new css/js and
 static images are available.

 When we make the new version default, the css, js and static files are
 accessible via appid.appspot.com

 However when accessing the same site via the google apps domain
 mapping we are still
 getting the old versions css, js and static images.

 I have tried removing the apps domain mapping and re-adding it with no
 affect.

 We have had to revert to the earlier version as all access to the site
 is via the apps domain and
 its not working with the latest version missing the new css/js.

 has anyone got any ideas on how we can address this.

 I know absolutely that the problem is not a browser cache, as I have
 been checking the css files via wget.

 Thanks for any help

 regards

 Tim

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[google-appengine] Re: Buying a new domain...

2010-06-02 Thread Roy Lo

Well. I think you can use some free domains first such as cz.cc. Try
it! Very useful and completely free!

On 6月2日, 下午5時23分, Prashant Gupta nextprash...@gmail.com wrote:
 Hi,

 I have to buy a new domain and link to my apps. I want to know pro or cons
 of buying a domain from Apps and Godaddy.

 If I buy a domain from Google Apps can I change my domain settings in
 GoDaddy?

 Thanks,
 Prashant

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Re: [google-appengine] Re: Buying a new domain...

2010-06-02 Thread Prashant Gupta

I have tried it with a co.cc domain and it worked fine for me.

I want to know if buying a domain with Google Apps will give me more or less
flexibility. As it is powered by GoDaddy, do we get a GoDaddy account for
the domain we buy?

Thanks,
Prashant

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Re: [google-appengine] Another easy question

In my file I have:

food = self.request.get('food')
field = self.request.get('field')
lista = db.Query(FOOD).filter(field, food).order('-Date').fetch(limit=30)

I need field to be *Myfieldvar=*
*
*
How can I do this?

Max

2010/6/2 Robert Kluin robert.kl...@gmail.com

As the page you link to says, it takes a string as the first argument --
so, yes. It can take a variable.

myvar = prop
Kind.all().filter(myvar, 5)

Robert

On Jun 2, 2010, at 3:39, Massimiliano massimiliano.pietr...@gmail.com
wrote:

Dear All,
in filter(property_operator, value) could the property_operator be a var?
Could you please tell me how it must be done?
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.

Regards

Massimiliano

My email: massimiliano.pietr...@gmail.commassimiliano.pietr...@gmail.com
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Re: [google-appengine] Another easy question

2010-06-02 Thread Robert Kluin

I suggest you have a look an introductory programming resouce. For
starters, see the python getting started guide:

http://www.python.org/about/gettingstarted/

Robert

On Jun 2, 2010, at 11:40, Massimiliano
massimiliano.pietr...@gmail.com wrote:

In my file I have:

food = self.request.get('food')
field = self.request.get('field')
lista = db.Query(FOOD).filter(field, food).order('-Date').fetch
(limit=30)

I need field to be Myfieldvar=

How can I do this?

Max

2010/6/2 Robert Kluin robert.kl...@gmail.com
As the page you link to says, it takes a string as the first
argument -- so, yes. It can take a variable.

myvar = prop
Kind.all().filter(myvar, 5)

Robert

On Jun 2, 2010, at 3:39, Massimiliano
massimiliano.pietr...@gmail.com wrote:

Dear All,
in filter(property_operator, value) could the property_operator be
a var?

Could you please tell me how it must be done?
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.

Regards

Massimiliano

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[google-appengine] Re: DeadlineExceeded on cold hits.

2010-06-02 Thread ten_foot_ninja

+1

On Jun 2, 11:36 am, bFlood bflood...@gmail.com wrote:
 +1

 On Jun 2, 11:19 am, dloomer dloo...@gmail.com wrote:



  I've been seeing increased DeadlineExceededErrors, and suspecting that
  it's an issue outside of my app but not sure.  I'm not sure if a three-
  post thread of somewhat similar experiences proves anything or not;
  when you refer to the increasingly poor datastore performance is
  this something that's documented elsewhere and/or acknowledged by
  Google?  I haven't been able to find anything so far indicating a bona
  fide known issue, but maybe I'm not looking in the right place.

  On Jun 1, 9:21 pm, Brandon Thomson gra...@gmail.com wrote:

   Yes, we are also seeing this. Usually the call at the end of the
   traceback is something related to the filesystem. I think this is
   caused by the increasingly poor datastore performance.

   On Jun 1, 6:16 pm, Dave Peck davep...@gmail.com wrote:

Hi,

In the past week, I've seen an alarming number of DeadlineExceeded
exceptions on cold hits to my applications.

Most of the stack traces are shallow -- things blow up well before my
code is hit. Seehttp://pastie.org/988269forastacktrace.

The `bootstrap.py` file is more-or-less a direct copy of the `main.py`
from Rietveld.

Can someone on the App Engine team please point me in the right
direction here? This is a big change in GAE's behavior in the past
week, and it is affecting many of my applications (citygoround which
has been in production for half a year; code-doctor which is under
development, etc.)

Cheers,
Dave Peck- Hide quoted text -

   - Show quoted text -

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Re: [google-appengine] Anomaly at Datastore

2010-06-02 Thread Waleed Abdulla

Same here. Also, the App Engine status page is broken! the first page seems
to be missing it's CSS files, and if you click on Anomaly to see the
datastore performance, you'll see the graph missing:

http://code.google.com/status/appengine

Regards,
Waleed

On Wed, Jun 2, 2010 at 6:27 AM, Rafael SDM Sierra rafaeljs...@gmail.comwrote:

Hi, we are with a ver high latency at datastore since yesterday, and I
don't see any message in the system status. Is there someone take care
of it? It's related in some way with Google I/O?

I have an application that handle hundreds of requests per second
during some minutes (some time hours), I tunned my application to use
cache most of time, but it just happens to have dozens of request per
second that hits the base (to puts or gets) and I worry that this
could affect the performance of the application in some way.

Thanks.

Currently, even the System Status board are broken
http://code.google.com/status/appengine/detail/datastore/2010/06/02

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Re: [google-appengine] Another easy question

2010-06-02 Thread andreas schmid

i think what you are missing in your code is the operator after the field var
in the filter. (= , , ,...)

you use it like .filter('field =', 'value')

On Jun 2, 2010, at 12:57 PM, Massimiliano wrote:

I have read it. And i was serching where he is talking about this, but I
can't find!!!
I'm searching again!

Thanks

Massimiliano

2010/6/2 Robert Kluin robert.kl...@gmail.com
I suggest you have a look an introductory programming resouce. For starters,
see the python getting started guide:
http://www.python.org/about/gettingstarted/

Robert

On Jun 2, 2010, at 11:40, Massimiliano massimiliano.pietr...@gmail.com
wrote:

In my file I have:

food = self.request.get('food')
field = self.request.get('field')
lista = db.Query(FOOD).filter(field, food).order('-Date').fetch(limit=30)

I need field to be Myfieldvar=

How can I do this?

Max

2010/6/2 Robert Kluin robert.kl...@gmail.com
As the page you link to says, it takes a string as the first argument -- so,
yes. It can take a variable.

myvar = prop
Kind.all().filter(myvar, 5)

Robert

On Jun 2, 2010, at 3:39, Massimiliano massimiliano.pietr...@gmail.com
wrote:

Regards

Massimiliano

My email: massimiliano.pietr...@gmail.com
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Re: [google-appengine] Unusually slow appengine performance

No, we don't prioritize billed applications. There's an ongoing effort
regarding the increased latency developers are seeing. We'll post updates
when we have something concrete.

On Wed, Jun 2, 2010 at 8:56 AM, ten_foot_ninja spitko...@gmail.com wrote:

I have noticed during the last couple weeks my appengine app being
slower than usual. My login routine gets maybe 20-30 records from 4
calls to the datastore. This takes about 10 seconds which isn't
acceptable from a user experience point of view.

Also, I know enabling billing increases your quota limits, I've read
on a couple blogs that enabling billing also increases your apps
priority/responsiveness. Can anyone confirm this?
Thanks!

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Re: [google-appengine] Verifying Account

Add yourself to the SMS issues waitlist - you'll be manually verified.

https://appengine.google.com/waitlist/sms_issues

Put your other account information in the request body.

On Wed, Jun 2, 2010 at 3:06 AM, David Grant da...@grant.org.uk wrote:

Hi,

I use Google Apps at work and at home. I've already verified my
account for using Google App Engine for my home domain, but when
attempting to verify for my work domain, I am given the following
error message:

The phone number has been sent too many messages or has already been
used to confirm an account

I don't have a separate mobile number for work, so it would appear I
am unable to use Google App Engine for work purposes. Can this be
addressed please?

Dave Grant

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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

Thanks for bringing this up, Tim. Anyone else seeing this problem? If so,
please post details. Are you guys setting any kind of cache headers?

I'm going to try to reproduce these issues, so any information will be
helpful.

On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:

 Thanks, Tim, for letting me know I'm not going insane.

 To the Google guys, this problem seems to have started yesterday
 afternoon (1:30-ish PM, EDT) in case it helps you track down the
 cause.

 On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
  Hi
 
  We have been trying to deploy a major revision of one of our apps.
 
  Under the specific version 2-0-0.latest...  all the new css/js and
  static images are available.
 
  When we make the new version default, the css, js and static files are
  accessible via appid.appspot.com
 
  However when accessing the same site via the google apps domain
  mapping we are still
  getting the old versions css, js and static images.
 
  I have tried removing the apps domain mapping and re-adding it with no
  affect.
 
  We have had to revert to the earlier version as all access to the site
  is via the apps domain and
  its not working with the latest version missing the new css/js.
 
  has anyone got any ideas on how we can address this.
 
  I know absolutely that the problem is not a browser cache, as I have
  been checking the css files via wget.
 
  Thanks for any help
 
  regards
 
  Tim

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Re: [google-appengine] Status page not working

2010-06-02 Thread Wesley C (Google)

thanks barry, you're right. there's a configuration issue that the
team is working on, so we should have it working soon. apologies for
crude CSS-less status page!

-- wesley
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Core Python Programming, Prentice Hall, (c)2007,2001
Python Fundamentals, Prentice Hall, (c)2009
   http://corepythonprogramming.com

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developer relations :: google app engine
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Re: [google-appengine] Re: Updating Google App Engine datastore

2010-06-02 Thread Jeff Schnitzer

There are two distinctions to be made - do your properties change
dynamically with program code or do they just evolve rapidly over
time? Ie: Do you need a dynamic interface to properties
(MapString,Object) or do you just need a more flexible way to deal
with schema evolution?

For a fully dynamic interface, go directly to the Low-Level API. The
Entity object is basically a hashmap and you can get/set any
properties you want. You can iterate through the available
properties.

For basic schema evolution, you have more choices. JDO is
particularly bad at this. Pretty much any change in the underlying
schema will break your application.

Objectify is particularly good at this. Possibly the other
alternative datastore APIs can help too (Twig, SimpleDS, Slim3) but I
don't know. You can read a lot more about Objectify's tools for
schema migration here:

http://code.google.com/p/objectify-appengine/wiki/IntroductionToObjectify#Migrating_Schemas

Basically, you can add or remove fields to your entities at any time
without any ill effects. You can also create mappings so that you can
change your entity classes, loading the old schema into the new
entities and upgrading them on the fly. This lets you make some
fairly extensive schema changes with zero downtime.

Note that this still isn't a wholly generic Map interface to the
datastore; you are still working with your typed Java classes. But
you can use both the Low-Level API and Objectify together very well;
the data structures have an intuitive 1-to-1 mapping.

Here's the project:

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

Good luck,
Jeff

2010/6/1 Víctor Mayoral v.mayor...@gmail.com:
Hey Tristan!

Thanks for your answer. I will check the docs again and take a look at
the low level API. The notification + trigger method seems pretty
intelligent i will also check that too.
But I was just wondering, isn't there something like a framework for
this types of jobs?.

Again, thanks

Víctor.

On 2 jun, 00:41, Tristan tristan.slomin...@gmail.com wrote:
Not sure how it would work in JDO but its simple to add properties in
low-level datastore.

I store my entities with a version property, when I update the entity,
I change the version and change my code to either intialize a non-
existing property on an old entity, or to delete a deprecated
property. This happens lazily (only when the entity is actally used).
You can also include a counter of how many entities were updated from
old to new and have a flag trigger when 100% of updates are complete.
Then in the next version of the code you can remove the updating
method since all old entities were lazily updated. An alternative
would be to set notification at 90% or some other percentage, and then
trigger a task that cleans up the rest of the entities. I use this
approach to keep my data consistent without the need for hugely
intensive datastore scans to update when changes happen.

Hope this will give you some ideas.

Cheers!

Tristan

On Jun 1, 6:28 am, Víctor Mayoral v.mayor...@gmail.com wrote:

Hello,
I've just an applications using GWT and GAE. After reading the docs
and doing some examples I decided to begin coding but soon I reach
something tricky.

My application data would be at the GAE datastore using JDO. I want to
assume
that the app will live. Let me explain this:
The entities at the datastore will change. This means that some
properties would be added and some of them maybe removed what leaves
me with a ton of exceptions to handle. Knowing this, which should be
the way to update the datastore entities? One by one after a change
is
made? Should I handle exceptions and then change just the entitie
requested? Is there a way to do this cleaner?

I've been thinking about how to do this stuff with my actual
knowledge
and i think that the most logical way to proceed is get the object,
remove it from the database, create a new one based on this old
object
and then persist it again.

To sum up the question is about if there's a way to add a property to
an stored entitie in the datastore (GAE) easily.

I hope you to understand my lines. Any suggestion would be
appreciated.

Thanks,

Víctor.

Re: [google-appengine] Anomaly at Datastore

2010-06-02 Thread Wesley C (Google)

the status page should be working again... there was a configuration
issue this morning regarding that which has been resolved.

as far as performance goes, there's an active and ongoing effort to
address the increased latency developers are seeing... we'll post
updates when we have something concrete. believe it or not, we're
working on trying to make things *more* stable, and not the other way
around.

thanks for your patience!
-- wesley
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Core Python Programming, Prentice Hall, (c)2007,2001
Python Fundamentals, Prentice Hall, (c)2009
   http://corepython.com

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Re: [google-appengine] Anomaly at Datastore

On Wed, Jun 2, 2010 at 2:53 PM, Wesley C (Google) wesc+...@google.com wrote:
 the status page should be working again... there was a configuration
 issue this morning regarding that which has been resolved.

 as far as performance goes, there's an active and ongoing effort to
 address the increased latency developers are seeing... we'll post
 updates when we have something concrete. believe it or not, we're
 working on trying to make things *more* stable, and not the other way
 around.

Ok, I do believe, I just was missing the information :)


 thanks for your patience!
 -- wesley
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Thank you.

 Core Python Programming, Prentice Hall, (c)2007,2001
 Python Fundamentals, Prentice Hall, (c)2009
    http://corepython.com

 wesley.j.chun :: wesc+api-at-google-dot-com
 developer relations :: google app engine
 @app_engine :: googleappengine.blogspot.com

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[google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

To reproduce the problem, go to 
http://qa.connectscholar.com/stylesheets/caSkin.css
and also to http://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
Both URLs point to the same file but one returns the old content and
appspot.com returns the new content.

On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
 Thanks for bringing this up, Tim. Anyone else seeing this problem? If so,
 please post details. Are you guys setting any kind of cache headers?

 I'm going to try to reproduce these issues, so any information will be
 helpful.





 On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
  Thanks, Tim, for letting me know I'm not going insane.

  To the Google guys, this problem seems to have started yesterday
  afternoon (1:30-ish PM, EDT) in case it helps you track down the
  cause.

  On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
   Hi

   We have been trying to deploy a major revision of one of our apps.

   Under the specific version 2-0-0.latest...  all the new css/js and
   static images are available.

   When we make the new version default, the css, js and static files are
   accessible via appid.appspot.com

   However when accessing the same site via the google apps domain
   mapping we are still
   getting the old versions css, js and static images.

   I have tried removing the apps domain mapping and re-adding it with no
   affect.

   We have had to revert to the earlier version as all access to the site
   is via the apps domain and
   its not working with the latest version missing the new css/js.

   has anyone got any ideas on how we can address this.

   I know absolutely that the problem is not a browser cache, as I have
   been checking the css files via wget.

   Thanks for any help

   regards

   Tim

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Re: [google-appengine] Another easy question

Oh sorry, it was really easy...

field = field + =
lista = db.Query(FOOD).filter(field,food).order('-Date').fetch(limit=30)

Now it's working

thanks

Massimiliano

2010/6/2 andreas schmid a.schmi...@gmail.com

i think what you are missing in your code is the operator after the field
var in the filter. (= , , ,...)

you use it like .filter('field =', 'value')

On Jun 2, 2010, at 12:57 PM, Massimiliano wrote:

I have read it. And i was serching where he is talking about this, but I
can't find!!!
I'm searching again!

Thanks

Massimiliano

2010/6/2 Robert Kluin robert.kl...@gmail.com

I suggest you have a look an introductory programming resouce. For
starters, see the python getting started guide:
http://www.python.org/about/gettingstarted/

Robert

On Jun 2, 2010, at 11:40, Massimiliano massimiliano.pietr...@gmail.com
wrote:

In my file I have:

food = self.request.get('food')
field = self.request.get('field')
lista = db.Query(FOOD).filter(field, food).order('-Date').fetch(limit=30)

I need field to be *Myfieldvar=*
*
*
How can I do this?

Max

2010/6/2 Robert Kluin robert.kl...@gmail.com

As the page you link to says, it takes a string as the first argument --
so, yes. It can take a variable.

myvar = prop
Kind.all().filter(myvar, 5)

Robert

On Jun 2, 2010, at 3:39, Massimiliano massimiliano.pietr...@gmail.com
wrote:

Dear All,
in filter(property_operator, value) could the property_operator be a
var?
Could you please tell me how it must be done?
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.

Regards

Massimiliano

My email: massimiliano.pietr...@gmail.com
massimiliano.pietr...@gmail.com
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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com wrote:
 To reproduce the problem, go to 
 http://qa.connectscholar.com/stylesheets/caSkin.css
 and also to http://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
 Both URLs point to the same file but one returns the old content and
 appspot.com returns the new content.

Same file here:

Hidan:~ sdm$ curl http://charityaxis-qa.appspot.com/stylesheets/caSkin.css  1
  % Total% Received % Xferd  Average Speed   TimeTime Time  Current
 Dload  Upload   Total   SpentLeft  Speed
100 109410 109410 0   6146  0 --:--:--  0:00:01 --:--:-- 31918
Hidan:~ sdm$ curl http://qa.connectscholar.com/stylesheets/caSkin.css  2
  % Total% Received % Xferd  Average Speed   TimeTime Time  Current
 Dload  Upload   Total   SpentLeft  Speed
100 109410 109410 0   2777  0 --:--:--  0:00:03 --:--:--  3854
Hidan:~ sdm$ md5 1
MD5 (1) = 8f5ef511be1a03fd73337c334933
Hidan:~ sdm$ md5 2
MD5 (2) = 8f5ef511be1a03fd73337c334933




 On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
 Thanks for bringing this up, Tim. Anyone else seeing this problem? If so,
 please post details. Are you guys setting any kind of cache headers?

 I'm going to try to reproduce these issues, so any information will be
 helpful.





 On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
  Thanks, Tim, for letting me know I'm not going insane.

  To the Google guys, this problem seems to have started yesterday
  afternoon (1:30-ish PM, EDT) in case it helps you track down the
  cause.

  On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
   Hi

   We have been trying to deploy a major revision of one of our apps.

   Under the specific version 2-0-0.latest...  all the new css/js and
   static images are available.

   When we make the new version default, the css, js and static files are
   accessible via appid.appspot.com

   However when accessing the same site via the google apps domain
   mapping we are still
   getting the old versions css, js and static images.

   I have tried removing the apps domain mapping and re-adding it with no
   affect.

   We have had to revert to the earlier version as all access to the site
   is via the apps domain and
   its not working with the latest version missing the new css/js.

   has anyone got any ideas on how we can address this.

   I know absolutely that the problem is not a browser cache, as I have
   been checking the css files via wget.

   Thanks for any help

   regards

   Tim

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Re: [google-appengine] Another easy question

On Wed, Jun 2, 2010 at 3:49 PM, Massimiliano
massimiliano.pietr...@gmail.com wrote:
Oh sorry, it was really easy...
field = field + =
lista = db.Query(FOOD).filter(field,food).order('-Date').fetch(limit=30)

Or:
lista = db.Query(FOOD).filter('%s ='%field,food).order('-Date').fetch(limit=30)

Now it's working
thanks
Massimiliano
2010/6/2 andreas schmid a.schmi...@gmail.com

i think what you are missing in your code is the operator after the field
var in the filter. (= , , ,...)
you use it like .filter('field =', 'value')
On Jun 2, 2010, at 12:57 PM, Massimiliano wrote:

I have read it. And i was serching where he is talking about this, but I
can't find!!!
I'm searching again!
Thanks
Massimiliano

2010/6/2 Robert Kluin robert.kl...@gmail.com

I suggest you have a look an introductory programming resouce. For
starters, see the python getting started guide:
http://www.python.org/about/gettingstarted/

Robert

On Jun 2, 2010, at 11:40, Massimiliano massimiliano.pietr...@gmail.com
wrote:

In my file I have:
food = self.request.get('food')
field = self.request.get('field')
lista = db.Query(FOOD).filter(field, food).order('-Date').fetch(limit=30)
I need field to be Myfieldvar=
How can I do this?
Max
2010/6/2 Robert Kluin robert.kl...@gmail.com

As the page you link to says, it takes a string as the first argument --
so, yes. It can take a variable.
myvar = prop
Kind.all().filter(myvar, 5)

Robert

On Jun 2, 2010, at 3:39, Massimiliano massimiliano.pietr...@gmail.com
wrote:

Dear All,
in filter(property_operator, value) could the property_operator be a
var?
Could you please tell me how it must be
done? http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.
Regards
Massimiliano
--

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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

I wonder if there is some layer of the infrastructure that is performing
caching without you guys having opted-in, hence the reason why a
cache-buster like ?v=something works. Can you guys confirm? Also - are you
guys setting any headers? Which headers get returned?

I've personally always used cache busters for the simple reason that
sometimes users using web-accelerators or with aggressive ISP or caching
settings tend to key off the URL. Can you guys use this workaround in the
meantime?

On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra rafaeljs...@gmail.comwrote:

On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com wrote:
To reproduce the problem, go to
http://qa.connectscholar.com/stylesheets/caSkin.css
and also to http://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
Both URLs point to the same file but one returns the old content and
appspot.com returns the new content.

Same file here:

Hidan:~ sdm$ curl http://charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
% Total% Received % Xferd Average Speed TimeTime Time
Current
Dload Upload Total SpentLeft
Speed
100 109410 109410 0 6146 0 --:--:-- 0:00:01 --:--:--
31918
Hidan:~ sdm$ curl http://qa.connectscholar.com/stylesheets/caSkin.css 2
% Total% Received % Xferd Average Speed TimeTime Time
Current
Dload Upload Total SpentLeft
Speed
100 109410 109410 0 2777 0 --:--:-- 0:00:03 --:--:--
3854
Hidan:~ sdm$ md5 1
MD5 (1) = 8f5ef511be1a03fd73337c334933
Hidan:~ sdm$ md5 2
MD5 (2) = 8f5ef511be1a03fd73337c334933

On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
Thanks for bringing this up, Tim. Anyone else seeing this problem? If
so,
please post details. Are you guys setting any kind of cache headers?

I'm going to try to reproduce these issues, so any information will be
helpful.

On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
Thanks, Tim, for letting me know I'm not going insane.

To the Google guys, this problem seems to have started yesterday
afternoon (1:30-ish PM, EDT) in case it helps you track down the
cause.

On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
Hi

We have been trying to deploy a major revision of one of our apps.

Under the specific version 2-0-0.latest... all the new css/js and
static images are available.

When we make the new version default, the css, js and static files
are
accessible via appid.appspot.com

However when accessing the same site via the google apps domain
mapping we are still
getting the old versions css, js and static images.

I have tried removing the apps domain mapping and re-adding it with
no
affect.

We have had to revert to the earlier version as all access to the
site
is via the apps domain and
its not working with the latest version missing the new css/js.

has anyone got any ideas on how we can address this.

I know absolutely that the problem is not a browser cache, as I have
been checking the css files via wget.

Thanks for any help

regards

Tim

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Reddit: http://www.reddit.com/r/appengine

Re: [google-appengine] Another easy question

Thanks!
But... The = checks if the string is equal of what I have in the
datastore. I need to check if the string is in the string in the datastore.
Uhm. Can you help me?

Massimiliano

2010/6/2 Rafael Sierra rafaeljs...@gmail.com

Or:
lista = db.Query(FOOD).filter('%s
='%field,food).order('-Date').fetch(limit=30)

Now it's working
thanks
Massimiliano
2010/6/2 andreas schmid a.schmi...@gmail.com

i think what you are missing in your code is the operator after the
field
var in the filter. (= , , ,...)
you use it like .filter('field =', 'value')
On Jun 2, 2010, at 12:57 PM, Massimiliano wrote:

I have read it. And i was serching where he is talking about this, but I
can't find!!!
I'm searching again!
Thanks
Massimiliano

2010/6/2 Robert Kluin robert.kl...@gmail.com

I suggest you have a look an introductory programming resouce. For
starters, see the python getting started guide:
http://www.python.org/about/gettingstarted/

Robert

On Jun 2, 2010, at 11:40, Massimiliano
massimiliano.pietr...@gmail.com
wrote:

In my file I have:
food = self.request.get('food')
field = self.request.get('field')
lista = db.Query(FOOD).filter(field,
food).order('-Date').fetch(limit=30)
I need field to be Myfieldvar=
How can I do this?
Max
2010/6/2 Robert Kluin robert.kl...@gmail.com

As the page you link to says, it takes a string as the first argument
--
so, yes. It can take a variable.
myvar = prop
Kind.all().filter(myvar, 5)

Robert

On Jun 2, 2010, at 3:39, Massimiliano
massimiliano.pietr...@gmail.com
wrote:

Dear All,
in filter(property_operator, value) could the property_operator be a
var?
Could you please tell me how it must be
done?
http://code.google.com/intl/it-IT/appengine/docs/python/datastore/queryclass.html#Query_filter
I can't find more details.
Regards
Massimiliano
--

My email: massimiliano.pietr...@gmail.com
My Google Wave: massimiliano.pietr...@googlewave.com

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[google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

That's interesting, Rafael. I wonder why it serves correctly for you.

They are still different from my PoV.

The bad side headers:
Etag74EQOA
DateTue, 01 Jun 2010 18:12:57 GMT
Expires Sat, 05 Jun 2010 02:12:57 GMT
Content-Typetext/css
Content-Encodinggzip
Server Google Frontend
Content-Length 2820
Cache-Control public, max-age=288000
Age 90134
X-XSS-Protection0

The good side headers:
Etag7xGL5w
DateWed, 02 Jun 2010 19:13:00 GMT
Expires Wed, 02 Jun 2010 19:12:04 GMT
Content-Typetext/css
Content-Encodinggzip
Server Google Frontend
Content-Length 2834
Age 41
Cache-Control public, max-age=600

Short of using a cache-buster, is there a setting I can use on GAE or
in my app.yaml file?

On Jun 2, 3:01 pm, Ikai L (Google) ika...@google.com wrote:
I wonder if there is some layer of the infrastructure that is performing
caching without you guys having opted-in, hence the reason why a
cache-buster like ?v=something works. Can you guys confirm? Also - are you
guys setting any headers? Which headers get returned?

On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra rafaeljs...@gmail.comwrote:

On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com wrote:
To reproduce the problem, go to
http://qa.connectscholar.com/stylesheets/caSkin.css
and also tohttp://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
Both URLs point to the same file but one returns the old content and
appspot.com returns the new content.

Same file here:

Hidan:~ sdm$ curlhttp://charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 10941 0 10941 0 0 6146 0 --:--:-- 0:00:01 --:--:--
31918
Hidan:~ sdm$ curlhttp://qa.connectscholar.com/stylesheets/caSkin.css 2
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 10941 0 10941 0 0 2777 0 --:--:-- 0:00:03 --:--:--
3854
Hidan:~ sdm$ md5 1
MD5 (1) = 8f5ef511be1a03fd73337c334933
Hidan:~ sdm$ md5 2
MD5 (2) = 8f5ef511be1a03fd73337c334933

I'm going to try to reproduce these issues, so any information will be
helpful.

On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
Thanks, Tim, for letting me know I'm not going insane.

To the Google guys, this problem seems to have started yesterday
afternoon (1:30-ish PM, EDT) in case it helps you track down the
cause.

On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
Hi

We have been trying to deploy a major revision of one of our apps.

Under the specific version 2-0-0.latest... all the new css/js and
static images are available.

When we make the new version default, the css, js and static files
are
accessible via appid.appspot.com

However when accessing the same site via the google apps domain
mapping we are still
getting the old versions css, js and static images.

I have tried removing the apps domain mapping and re-adding it with
no
affect.

We have had to revert to the earlier version as all access to the
site
is via the apps domain and
its not working with the latest version missing the new css/js.

has anyone got any ideas on how we can address this.

I know absolutely that the problem is not a browser cache, as I have
been checking the css files via wget.

Thanks for any help

regards

Tim

--
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[google-appengine] Re: Another easy question

2010-06-02 Thread Geoffrey Spear



On Jun 2, 3:10 pm, Massimiliano massimiliano.pietr...@gmail.com
wrote:
 Thanks!
 But... The = checks if the string is equal of what I have in the
 datastore. I need to check if the string is in the string in the datastore.
 Uhm. Can you help me?

The datastore can't do substring searches.  The best you can do is a
prefix search by filtering with = 'yourprefix' and  u'yourprefix' +
u'\uffdd'.

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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

Okay, looks like the Google Front-End is kicking in to cache your stuff

Server  Google Frontend
Content-Length  2834
Age 41
Cache-Control   public, max-age=600

Are you guys setting this header anywhere? Unfortunately, there's no way to
invalidate items in the frontend cache, so you'll have to use a cache buster
or wait for the TTL to expire.

On Wed, Jun 2, 2010 at 12:22 PM, J j.si...@earlystageit.com wrote:

 That's interesting, Rafael. I wonder why it serves correctly for you.

 They are still different from my PoV.

 The bad side headers:
 Etag74EQOA
 DateTue, 01 Jun 2010 18:12:57 GMT
 Expires Sat, 05 Jun 2010 02:12:57 GMT
 Content-Typetext/css
 Content-Encodinggzip
 Server  Google Frontend
 Content-Length  2820
 Cache-Control   public, max-age=288000
 Age 90134
 X-XSS-Protection0

 The good side headers:
 Etag7xGL5w
 DateWed, 02 Jun 2010 19:13:00 GMT
 Expires Wed, 02 Jun 2010 19:12:04 GMT
 Content-Typetext/css
 Content-Encodinggzip
 Server  Google Frontend
 Content-Length  2834
 Age 41
 Cache-Control   public, max-age=600

 Short of using a cache-buster, is there a setting I can use on GAE or
 in my app.yaml file?

 On Jun 2, 3:01 pm, Ikai L (Google) ika...@google.com wrote:
  I wonder if there is some layer of the infrastructure that is performing
  caching without you guys having opted-in, hence the reason why a
  cache-buster like ?v=something works. Can you guys confirm? Also - are
 you
  guys setting any headers? Which headers get returned?
 
  I've personally always used cache busters for the simple reason that
  sometimes users using web-accelerators or with aggressive ISP or caching
  settings tend to key off the URL. Can you guys use this workaround in the
  meantime?
 
  On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra rafaeljs...@gmail.com
 wrote:
 
 
 
 
 
   On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com wrote:
To reproduce the problem, go to
  http://qa.connectscholar.com/stylesheets/caSkin.css
and also tohttp://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
Both URLs point to the same file but one returns the old content and
appspot.com returns the new content.
 
   Same file here:
 
   Hidan:~ sdm$ curlhttp://
 charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
% Total% Received % Xferd  Average Speed   TimeTime Time
Current
   Dload  Upload   Total   SpentLeft
Speed
   100 109410 109410 0   6146  0 --:--:--  0:00:01
 --:--:--
   31918
   Hidan:~ sdm$ curlhttp://qa.connectscholar.com/stylesheets/caSkin.css
 2
% Total% Received % Xferd  Average Speed   TimeTime Time
Current
   Dload  Upload   Total   SpentLeft
Speed
   100 109410 109410 0   2777  0 --:--:--  0:00:03
 --:--:--
3854
   Hidan:~ sdm$ md5 1
   MD5 (1) = 8f5ef511be1a03fd73337c334933
   Hidan:~ sdm$ md5 2
   MD5 (2) = 8f5ef511be1a03fd73337c334933
 
On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
Thanks for bringing this up, Tim. Anyone else seeing this problem?
 If
   so,
please post details. Are you guys setting any kind of cache headers?
 
I'm going to try to reproduce these issues, so any information will
 be
helpful.
 
On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
 Thanks, Tim, for letting me know I'm not going insane.
 
 To the Google guys, this problem seems to have started yesterday
 afternoon (1:30-ish PM, EDT) in case it helps you track down the
 cause.
 
 On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
  Hi
 
  We have been trying to deploy a major revision of one of our
 apps.
 
  Under the specific version 2-0-0.latest...  all the new css/js
 and
  static images are available.
 
  When we make the new version default, the css, js and static
 files
   are
  accessible via appid.appspot.com
 
  However when accessing the same site via the google apps domain
  mapping we are still
  getting the old versions css, js and static images.
 
  I have tried removing the apps domain mapping and re-adding it
 with
   no
  affect.
 
  We have had to revert to the earlier version as all access to
 the
   site
  is via the apps domain and
  its not working with the latest version missing the new css/js.
 
  has anyone got any ideas on how we can address this.
 
  I know absolutely that the problem is not a browser cache, as I
 have
  been checking the css files via wget.
 
  Thanks for any help
 
  regards
 
  Tim
 
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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

Okay, looks like the Google Front-End is kicking in to cache your stuff

Server  Google Frontend
Content-Length  2834
Age 41
Cache-Control   public, max-age=600

Are you guys setting this header anywhere? Unfortunately, there's no way to
invalidate items in the frontend cache, so you'll have to use a cache buster
or wait for the TTL to expire.

On Wed, Jun 2, 2010 at 12:22 PM, J j.si...@earlystageit.com wrote:

 That's interesting, Rafael. I wonder why it serves correctly for you.

 They are still different from my PoV.

 The bad side headers:
 Etag74EQOA
 DateTue, 01 Jun 2010 18:12:57 GMT
 Expires Sat, 05 Jun 2010 02:12:57 GMT
 Content-Typetext/css
 Content-Encodinggzip
 Server  Google Frontend
 Content-Length  2820
 Cache-Control   public, max-age=288000
 Age 90134
 X-XSS-Protection0

 The good side headers:
 Etag7xGL5w
 DateWed, 02 Jun 2010 19:13:00 GMT
 Expires Wed, 02 Jun 2010 19:12:04 GMT
 Content-Typetext/css
 Content-Encodinggzip
 Server  Google Frontend
 Content-Length  2834
 Age 41
 Cache-Control   public, max-age=600

 Short of using a cache-buster, is there a setting I can use on GAE or
 in my app.yaml file?

 On Jun 2, 3:01 pm, Ikai L (Google) ika...@google.com wrote:
  I wonder if there is some layer of the infrastructure that is performing
  caching without you guys having opted-in, hence the reason why a
  cache-buster like ?v=something works. Can you guys confirm? Also - are
 you
  guys setting any headers? Which headers get returned?
 
  I've personally always used cache busters for the simple reason that
  sometimes users using web-accelerators or with aggressive ISP or caching
  settings tend to key off the URL. Can you guys use this workaround in the
  meantime?
 
  On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra rafaeljs...@gmail.com
 wrote:
 
 
 
 
 
   On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com wrote:
To reproduce the problem, go to
  http://qa.connectscholar.com/stylesheets/caSkin.css
and also tohttp://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
Both URLs point to the same file but one returns the old content and
appspot.com returns the new content.
 
   Same file here:
 
   Hidan:~ sdm$ curlhttp://
 charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
% Total% Received % Xferd  Average Speed   TimeTime Time
Current
   Dload  Upload   Total   SpentLeft
Speed
   100 109410 109410 0   6146  0 --:--:--  0:00:01
 --:--:--
   31918
   Hidan:~ sdm$ curlhttp://qa.connectscholar.com/stylesheets/caSkin.css
 2
% Total% Received % Xferd  Average Speed   TimeTime Time
Current
   Dload  Upload   Total   SpentLeft
Speed
   100 109410 109410 0   2777  0 --:--:--  0:00:03
 --:--:--
3854
   Hidan:~ sdm$ md5 1
   MD5 (1) = 8f5ef511be1a03fd73337c334933
   Hidan:~ sdm$ md5 2
   MD5 (2) = 8f5ef511be1a03fd73337c334933
 
On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
Thanks for bringing this up, Tim. Anyone else seeing this problem?
 If
   so,
please post details. Are you guys setting any kind of cache headers?
 
I'm going to try to reproduce these issues, so any information will
 be
helpful.
 
On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
 Thanks, Tim, for letting me know I'm not going insane.
 
 To the Google guys, this problem seems to have started yesterday
 afternoon (1:30-ish PM, EDT) in case it helps you track down the
 cause.
 
 On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
  Hi
 
  We have been trying to deploy a major revision of one of our
 apps.
 
  Under the specific version 2-0-0.latest...  all the new css/js
 and
  static images are available.
 
  When we make the new version default, the css, js and static
 files
   are
  accessible via appid.appspot.com
 
  However when accessing the same site via the google apps domain
  mapping we are still
  getting the old versions css, js and static images.
 
  I have tried removing the apps domain mapping and re-adding it
 with
   no
  affect.
 
  We have had to revert to the earlier version as all access to
 the
   site
  is via the apps domain and
  its not working with the latest version missing the new css/js.
 
  has anyone got any ideas on how we can address this.
 
  I know absolutely that the problem is not a browser cache, as I
 have
  been checking the css files via wget.
 
  Thanks for any help
 
  regards
 
  Tim
 
 --
 You received this message because you are subscribed to the Google
   Groups
 Google App Engine group.
 To post to this group, send email to
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Re: [google-appengine] Re: Another easy question

I'm using this filter() to build a search engine in the datastore. So I
don't only want to show the exact result.


2010/6/2 Geoffrey Spear geoffsp...@gmail.com



 On Jun 2, 3:10 pm, Massimiliano massimiliano.pietr...@gmail.com
 wrote:
  Thanks!
  But... The = checks if the string is equal of what I have in the
  datastore. I need to check if the string is in the string in the
 datastore.
  Uhm. Can you help me?

 The datastore can't do substring searches.  The best you can do is a
 prefix search by filtering with = 'yourprefix' and  u'yourprefix' +
 u'\uffdd'.

 --
 You received this message because you are subscribed to the Google Groups
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 .
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[google-appengine] Referenced projects in Eclipse with App Engine.

2010-06-02 Thread Timofey Danshin

Hi.
I have a number of projects, and they share a certain part, which i would
like to extract into a separate project.
To this end i tried to create a project containing that shared part only,
and create a project with a project-specific part only. It compiles well,
the classes in one project see the classes from the other. However, when i
try to start the thing as a Google Web Application, I get the
java.lang.NoClassDefFoundError.
What can I do about it? Or is it at all possible to do that with App Engine
projects?

-- 
Best Regards,
Timofey.

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[google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

Thanks, Ikai, for your help. It is much appreciated.

We'll use a cache buster for now.

On Jun 2, 3:27 pm, Ikai L (Google) ika...@google.com wrote:
Okay, looks like the Google Front-End is kicking in to cache your stuff

Server Google Frontend
Content-Length 2834
Age 41
Cache-Control public, max-age=600

Are you guys setting this header anywhere? Unfortunately, there's no way to
invalidate items in the frontend cache, so you'll have to use a cache buster
or wait for the TTL to expire.

On Wed, Jun 2, 2010 at 12:22 PM, J j.si...@earlystageit.com wrote:
That's interesting, Rafael. I wonder why it serves correctly for you.

They are still different from my PoV.

The bad side headers:
Etag 74EQOA
Date Tue, 01 Jun 2010 18:12:57 GMT
Expires Sat, 05 Jun 2010 02:12:57 GMT
Content-Type text/css
Content-Encoding gzip
Server Google Frontend
Content-Length 2820
Cache-Control public, max-age=288000
Age 90134
X-XSS-Protection 0

The good side headers:
Etag 7xGL5w
Date Wed, 02 Jun 2010 19:13:00 GMT
Expires Wed, 02 Jun 2010 19:12:04 GMT
Content-Type text/css
Content-Encoding gzip
Server Google Frontend
Content-Length 2834
Age 41
Cache-Control public, max-age=600

Short of using a cache-buster, is there a setting I can use on GAE or
in my app.yaml file?

On Jun 2, 3:01 pm, Ikai L (Google) ika...@google.com wrote:
I wonder if there is some layer of the infrastructure that is performing
caching without you guys having opted-in, hence the reason why a
cache-buster like ?v=something works. Can you guys confirm? Also - are
you
guys setting any headers? Which headers get returned?

On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra rafaeljs...@gmail.com
wrote:

On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com wrote:
To reproduce the problem, go to
http://qa.connectscholar.com/stylesheets/caSkin.css
and also tohttp://charityaxis-qa.appspot.com/stylesheets/caSkin.css.
Both URLs point to the same file but one returns the old content and
appspot.com returns the new content.

Same file here:

Hidan:~ sdm$ curlhttp://
charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 10941 0 10941 0 0 6146 0 --:--:-- 0:00:01
--:--:--
31918
Hidan:~ sdm$ curlhttp://qa.connectscholar.com/stylesheets/caSkin.css
2
% Total % Received % Xferd Average Speed Time Time Time
Current
Dload Upload Total Spent Left
Speed
100 10941 0 10941 0 0 2777 0 --:--:-- 0:00:03
--:--:--
3854
Hidan:~ sdm$ md5 1
MD5 (1) = 8f5ef511be1a03fd73337c334933
Hidan:~ sdm$ md5 2
MD5 (2) = 8f5ef511be1a03fd73337c334933

On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
Thanks for bringing this up, Tim. Anyone else seeing this problem?
If
so,
please post details. Are you guys setting any kind of cache headers?

I'm going to try to reproduce these issues, so any information will
be
helpful.

On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com wrote:
Thanks, Tim, for letting me know I'm not going insane.

To the Google guys, this problem seems to have started yesterday
afternoon (1:30-ish PM, EDT) in case it helps you track down the
cause.

On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
Hi

We have been trying to deploy a major revision of one of our
apps.

Under the specific version 2-0-0.latest... all the new css/js
and
static images are available.

When we make the new version default, the css, js and static
files
are
accessible via appid.appspot.com

However when accessing the same site via the google apps domain
mapping we are still
getting the old versions css, js and static images.

I have tried removing the apps domain mapping and re-adding it
with
no
affect.

We have had to revert to the earlier version as all access to
the
site
is via the apps domain and
its not working with the latest version missing the new css/js.

has anyone got any ideas on how we can address this.

I know absolutely that the problem is not a browser cache, as I
have
been checking the css files via wget.

Thanks for any help

regards

Tim

--
You received this message because you are

Re: [google-appengine] mapreduce

2010-06-02 Thread Waldemar Kornewald

Hi,

On Tue, Jun 1, 2010 at 11:13 PM, Ikai L (Google) ika...@google.com wrote:
 Hi,
 The first release of the mapper API will require a manual invocation of the
 task.
 If you need to map all entities, you will have to run the task. There's no
 continuous process monitoring changed entities. You can probably build this
 into your update workflow.

Is this planned for a future release, though? Building a CouchDB-like
map/reduce solution with this would be a lot of work and it might not
even be reliable.

Bye,
Waldemar Kornewald

--
Django on App Engine, MongoDB, SimpleDB, ...?
http://www.allbuttonspressed.com/blog/django

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Re: [google-appengine] Re: Another easy question

On Wed, Jun 2, 2010 at 4:34 PM, Massimiliano
massimiliano.pietr...@gmail.com wrote:
 I'm using this filter() to build a search engine in the datastore. So I
 don't only want to show the exact result.

There's already some full text solutions, google it and you may found
(hosted at code.google.com)



 2010/6/2 Geoffrey Spear geoffsp...@gmail.com


 On Jun 2, 3:10 pm, Massimiliano massimiliano.pietr...@gmail.com
 wrote:
  Thanks!
  But... The = checks if the string is equal of what I have in the
  datastore. I need to check if the string is in the string in the
  datastore.
  Uhm. Can you help me?

 The datastore can't do substring searches.  The best you can do is a
 prefix search by filtering with = 'yourprefix' and  u'yourprefix' +
 u'\uffdd'.

 --
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 --

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 My Google Wave: massimiliano.pietr...@googlewave.com

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Re: [google-appengine] Re: Another easy question

http://gae-full-text-search.appspot.com/

On Wed, Jun 2, 2010 at 4:50 PM, Massimiliano
massimiliano.pietr...@gmail.com wrote:
 I can't find nothing.

 2010/6/2 Rafael Sierra rafaeljs...@gmail.com

 On Wed, Jun 2, 2010 at 4:34 PM, Massimiliano
 massimiliano.pietr...@gmail.com wrote:
  I'm using this filter() to build a search engine in the datastore. So I
  don't only want to show the exact result.

 There's already some full text solutions, google it and you may found
 (hosted at code.google.com)

 
 
  2010/6/2 Geoffrey Spear geoffsp...@gmail.com
 
 
  On Jun 2, 3:10 pm, Massimiliano massimiliano.pietr...@gmail.com
  wrote:
   Thanks!
   But... The = checks if the string is equal of what I have in the
   datastore. I need to check if the string is in the string in the
   datastore.
   Uhm. Can you help me?
 
  The datastore can't do substring searches.  The best you can do is a
  prefix search by filtering with = 'yourprefix' and  u'yourprefix' +
  u'\uffdd'.
 
  --
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  Groups
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  My Google Wave: massimiliano.pietr...@googlewave.com
 
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Re: [google-appengine] Re: Another easy question

I can't find nothing.

2010/6/2 Rafael Sierra rafaeljs...@gmail.com

On Wed, Jun 2, 2010 at 4:34 PM, Massimiliano
massimiliano.pietr...@gmail.com wrote:
I'm using this filter() to build a search engine in the datastore. So I
don't only want to show the exact result.

There's already some full text solutions, google it and you may found
(hosted at code.google.com)

2010/6/2 Geoffrey Spear geoffsp...@gmail.com

On Jun 2, 3:10 pm, Massimiliano massimiliano.pietr...@gmail.com
wrote:
Thanks!
But... The = checks if the string is equal of what I have in the
datastore. I need to check if the string is in the string in the
datastore.
Uhm. Can you help me?

The datastore can't do substring searches. The best you can do is a
prefix search by filtering with = 'yourprefix' and u'yourprefix' +
u'\uffdd'.

--
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Groups
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.
For more options, visit this group at
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My email: massimiliano.pietr...@gmail.com
My Google Wave: massimiliano.pietr...@googlewave.com

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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

In the meantime, I'll investigate whether these headers are being implicitly
or incorrectly set.

On Wed, Jun 2, 2010 at 12:37 PM, J j.si...@earlystageit.com wrote:

 Thanks, Ikai, for your help. It is much appreciated.

 We'll use a cache buster for now.

 On Jun 2, 3:27 pm, Ikai L (Google) ika...@google.com wrote:
  Okay, looks like the Google Front-End is kicking in to cache your stuff
 
  Server  Google Frontend
  Content-Length  2834
  Age 41
  Cache-Control   public, max-age=600
 
  Are you guys setting this header anywhere? Unfortunately, there's no way
 to
  invalidate items in the frontend cache, so you'll have to use a cache
 buster
  or wait for the TTL to expire.
 
 
 
 
 
  On Wed, Jun 2, 2010 at 12:22 PM, J j.si...@earlystageit.com wrote:
   That's interesting, Rafael. I wonder why it serves correctly for you.
 
   They are still different from my PoV.
 
   The bad side headers:
   Etag74EQOA
   DateTue, 01 Jun 2010 18:12:57 GMT
   Expires Sat, 05 Jun 2010 02:12:57 GMT
   Content-Typetext/css
   Content-Encodinggzip
   Server  Google Frontend
   Content-Length  2820
   Cache-Control   public, max-age=288000
   Age 90134
   X-XSS-Protection0
 
   The good side headers:
   Etag7xGL5w
   DateWed, 02 Jun 2010 19:13:00 GMT
   Expires Wed, 02 Jun 2010 19:12:04 GMT
   Content-Typetext/css
   Content-Encodinggzip
   Server  Google Frontend
   Content-Length  2834
   Age 41
   Cache-Control   public, max-age=600
 
   Short of using a cache-buster, is there a setting I can use on GAE or
   in my app.yaml file?
 
   On Jun 2, 3:01 pm, Ikai L (Google) ika...@google.com wrote:
I wonder if there is some layer of the infrastructure that is
 performing
caching without you guys having opted-in, hence the reason why a
cache-buster like ?v=something works. Can you guys confirm? Also -
 are
   you
guys setting any headers? Which headers get returned?
 
I've personally always used cache busters for the simple reason that
sometimes users using web-accelerators or with aggressive ISP or
 caching
settings tend to key off the URL. Can you guys use this workaround in
 the
meantime?
 
On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra 
 rafaeljs...@gmail.com
   wrote:
 
 On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com
 wrote:
  To reproduce the problem, go to
http://qa.connectscholar.com/stylesheets/caSkin.css
  and also tohttp://
 charityaxis-qa.appspot.com/stylesheets/caSkin.css.
  Both URLs point to the same file but one returns the old content
 and
  appspot.com returns the new content.
 
 Same file here:
 
 Hidan:~ sdm$ curlhttp://
   charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
  % Total% Received % Xferd  Average Speed   TimeTime
 Time
  Current
 Dload  Upload   Total   Spent
  Left
  Speed
 100 109410 109410 0   6146  0 --:--:--  0:00:01
   --:--:--
 31918
 Hidan:~ sdm$ curlhttp://
 qa.connectscholar.com/stylesheets/caSkin.css
   2
  % Total% Received % Xferd  Average Speed   TimeTime
 Time
  Current
 Dload  Upload   Total   Spent
  Left
  Speed
 100 109410 109410 0   2777  0 --:--:--  0:00:03
   --:--:--
  3854
 Hidan:~ sdm$ md5 1
 MD5 (1) = 8f5ef511be1a03fd73337c334933
 Hidan:~ sdm$ md5 2
 MD5 (2) = 8f5ef511be1a03fd73337c334933
 
  On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
  Thanks for bringing this up, Tim. Anyone else seeing this
 problem?
   If
 so,
  please post details. Are you guys setting any kind of cache
 headers?
 
  I'm going to try to reproduce these issues, so any information
 will
   be
  helpful.
 
  On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com
 wrote:
   Thanks, Tim, for letting me know I'm not going insane.
 
   To the Google guys, this problem seems to have started
 yesterday
   afternoon (1:30-ish PM, EDT) in case it helps you track down
 the
   cause.
 
   On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
Hi
 
We have been trying to deploy a major revision of one of our
   apps.
 
Under the specific version 2-0-0.latest...  all the new
 css/js
   and
static images are available.
 
When we make the new version default, the css, js and static
   files
 are
accessible via appid.appspot.com
 
However when accessing the same site via the google apps
 domain
mapping we are still
getting the old versions css, js and static images.
 
I have tried removing the apps domain mapping and re-adding
 it
   with
 no
affect.
 
We have had to revert to the earlier version as all access
 to
   the
 site
is via the apps domain and
its not working with the latest version missing

[google-appengine] Re: Updating Google App Engine datastore

2010-06-02 Thread Víctor Mayoral

Thanks Tristan and Jeff,
Both of you have been really kind and your suggestions were really
clear and understandable.

I'll start with both approaches and see what fits me better.

My best reggards,

Víctor.


On 2 jun, 19:46, Jeff Schnitzer j...@infohazard.org wrote:
 There are two distinctions to be made - do your properties change
 dynamically with program code or do they just evolve rapidly over
 time?  Ie:  Do you need a dynamic interface to properties
 (MapString,Object) or do you just need a more flexible way to deal
 with schema evolution?

 For a fully dynamic interface, go directly to the Low-Level API.  The
 Entity object is basically a hashmap and you can get/set any
 properties you want.  You can iterate through the available
 properties.

 For basic schema evolution, you have more choices.  JDO is
 particularly bad at this.  Pretty much any change in the underlying
 schema will break your application.

 Objectify is particularly good at this.  Possibly the other
 alternativedatastoreAPIs can help too (Twig, SimpleDS, Slim3) but I
 don't know.  You can read a lot more about Objectify's tools for
 schema migration here:

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

 Basically, you can add or remove fields to your entities at any time
 without any ill effects.  You can also create mappings so that you can
 change your entity classes, loading the old schema into the new
 entities and upgrading them on the fly.  This lets you make some
 fairly extensive schema changes with zero downtime.

 Note that this still isn't a wholly generic Map interface to thedatastore; 
 you are still working with your typed Java classes.  But
 you can use both the Low-Level API and Objectify together very well;
 the data structures have an intuitive 1-to-1 mapping.

 Here's the project:

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

 Good luck,
 Jeff

 2010/6/1 Víctor Mayoral v.mayor...@gmail.com:

  Hey Tristan!

  Thanks for your answer. I will check the docs again and take a look at
  the low level API. The notification + trigger method seems pretty
  intelligent i will also check that too.
  But I was just wondering, isn't there something like a framework for
  this types of jobs?.

  Again, thanks

  Víctor.

  On 2 jun, 00:41, Tristan tristan.slomin...@gmail.com wrote:
  Not sure how it would work in JDO but its simple to add properties in
  low-leveldatastore.

  I store my entities with a version property, when I update the entity,
  I change the version and change my code to either intialize a non-
  existing property on an old entity, or to delete a deprecated
  property. This happens lazily (only when the entity is actally used).
  You can also include a counter of how many entities were updated from
  old to new and have a flag trigger when 100% of updates are complete.
  Then in the next version of the code you can remove theupdating
  method since all old entities were lazily updated. An alternative
  would be to set notification at 90% or some other percentage, and then
  trigger a task that cleans up the rest of the entities. I use this
  approach to keep my data consistent without the need for hugely
  intensivedatastorescans to update when changes happen.

  Hope this will give you some ideas.

  Cheers!

  Tristan

  On Jun 1, 6:28 am, Víctor Mayoral v.mayor...@gmail.com wrote:

   Hello,
   I've just an applications using GWT and GAE. After reading the docs
   and doing some examples I decided to begin coding but soon I reach
   something tricky.

   My application data would be at the GAEdatastoreusing JDO. I want to
   assume
   that the app will live. Let me explain this:
   The entities at thedatastorewill change. This means that some
   properties would be added and some of them maybe removed what leaves
   me with a ton of exceptions to handle. Knowing this, which should be
   the way to update thedatastoreentities? One by one after a change
   is
   made? Should I handle exceptions and then change just the entitie
   requested? Is there a way to do this cleaner?

   I've been thinking about how to do this stuff with my actual
   knowledge
   and i think that the most logical way to proceed is get the object,
   remove it from the database, create a new one based on this old
   object
   and then persist it again.

   To sum up the question is about if there's a way to add a property to
   an stored entitie in thedatastore(GAE) easily.

   I hope you to understand my lines. Any suggestion would be
   appreciated.

   Thanks,

   Víctor.

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Re: [google-appengine] Re: Another easy question

It sounds strange to me that there isn't nothing in GAE to check
this, without using a third part class...

2010/6/2 Rafael Sierra rafaeljs...@gmail.com

http://gae-full-text-search.appspot.com/

On Wed, Jun 2, 2010 at 4:50 PM, Massimiliano
massimiliano.pietr...@gmail.com wrote:
I can't find nothing.

2010/6/2 Rafael Sierra rafaeljs...@gmail.com

On Wed, Jun 2, 2010 at 4:34 PM, Massimiliano
massimiliano.pietr...@gmail.com wrote:
I'm using this filter() to build a search engine in the datastore. So
I
don't only want to show the exact result.

There's already some full text solutions, google it and you may found
(hosted at code.google.com)

2010/6/2 Geoffrey Spear geoffsp...@gmail.com

The datastore can't do substring searches. The best you can do is a
prefix search by filtering with = 'yourprefix' and u'yourprefix' +
u'\uffdd'.

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Re: [google-appengine] mapreduce

It's not on our roadmap. My suspicion is no, but it depends on how
developers end up using map-reduce.

On Wed, Jun 2, 2010 at 12:39 PM, Waldemar Kornewald wkornew...@gmail.comwrote:

Hi,

On Tue, Jun 1, 2010 at 11:13 PM, Ikai L (Google) ika...@google.com
wrote:
Hi,
The first release of the mapper API will require a manual invocation of
the
task.
If you need to map all entities, you will have to run the task. There's
no
continuous process monitoring changed entities. You can probably build
this
into your update workflow.

Is this planned for a future release, though? Building a CouchDB-like
map/reduce solution with this would be a lot of work and it might not
even be reliable.

Bye,
Waldemar Kornewald

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Re: [google-appengine] Re: Static files in newly deployed version not available in the apps domain. (Major problem)

I can't reproduce this. Here's my YAML file:

application: ikailan-com
version: 1
runtime: python
api_version: 1
default_expiration: 1d


handlers:
- url: /
  script: main.py

- url: /assets
  static_dir: assets

Can you guys post your app.yaml?


On Wed, Jun 2, 2010 at 1:04 PM, Ikai L (Google) ika...@google.com wrote:

 In the meantime, I'll investigate whether these headers are being
 implicitly or incorrectly set.


 On Wed, Jun 2, 2010 at 12:37 PM, J j.si...@earlystageit.com wrote:

 Thanks, Ikai, for your help. It is much appreciated.

 We'll use a cache buster for now.

 On Jun 2, 3:27 pm, Ikai L (Google) ika...@google.com wrote:
  Okay, looks like the Google Front-End is kicking in to cache your stuff
 
  Server  Google Frontend
  Content-Length  2834
  Age 41
  Cache-Control   public, max-age=600
 
  Are you guys setting this header anywhere? Unfortunately, there's no way
 to
  invalidate items in the frontend cache, so you'll have to use a cache
 buster
  or wait for the TTL to expire.
 
 
 
 
 
  On Wed, Jun 2, 2010 at 12:22 PM, J j.si...@earlystageit.com wrote:
   That's interesting, Rafael. I wonder why it serves correctly for you.
 
   They are still different from my PoV.
 
   The bad side headers:
   Etag74EQOA
   DateTue, 01 Jun 2010 18:12:57 GMT
   Expires Sat, 05 Jun 2010 02:12:57 GMT
   Content-Typetext/css
   Content-Encodinggzip
   Server  Google Frontend
   Content-Length  2820
   Cache-Control   public, max-age=288000
   Age 90134
   X-XSS-Protection0
 
   The good side headers:
   Etag7xGL5w
   DateWed, 02 Jun 2010 19:13:00 GMT
   Expires Wed, 02 Jun 2010 19:12:04 GMT
   Content-Typetext/css
   Content-Encodinggzip
   Server  Google Frontend
   Content-Length  2834
   Age 41
   Cache-Control   public, max-age=600
 
   Short of using a cache-buster, is there a setting I can use on GAE or
   in my app.yaml file?
 
   On Jun 2, 3:01 pm, Ikai L (Google) ika...@google.com wrote:
I wonder if there is some layer of the infrastructure that is
 performing
caching without you guys having opted-in, hence the reason why a
cache-buster like ?v=something works. Can you guys confirm? Also -
 are
   you
guys setting any headers? Which headers get returned?
 
I've personally always used cache busters for the simple reason that
sometimes users using web-accelerators or with aggressive ISP or
 caching
settings tend to key off the URL. Can you guys use this workaround
 in the
meantime?
 
On Wed, Jun 2, 2010 at 11:57 AM, Rafael Sierra 
 rafaeljs...@gmail.com
   wrote:
 
 On Wed, Jun 2, 2010 at 3:37 PM, J j.si...@earlystageit.com
 wrote:
  To reproduce the problem, go to
http://qa.connectscholar.com/stylesheets/caSkin.css
  and also tohttp://
 charityaxis-qa.appspot.com/stylesheets/caSkin.css.
  Both URLs point to the same file but one returns the old content
 and
  appspot.com returns the new content.
 
 Same file here:
 
 Hidan:~ sdm$ curlhttp://
   charityaxis-qa.appspot.com/stylesheets/caSkin.css 1
  % Total% Received % Xferd  Average Speed   TimeTime
 Time
  Current
 Dload  Upload   Total   Spent
  Left
  Speed
 100 109410 109410 0   6146  0 --:--:--  0:00:01
   --:--:--
 31918
 Hidan:~ sdm$ curlhttp://
 qa.connectscholar.com/stylesheets/caSkin.css
   2
  % Total% Received % Xferd  Average Speed   TimeTime
 Time
  Current
 Dload  Upload   Total   Spent
  Left
  Speed
 100 109410 109410 0   2777  0 --:--:--  0:00:03
   --:--:--
  3854
 Hidan:~ sdm$ md5 1
 MD5 (1) = 8f5ef511be1a03fd73337c334933
 Hidan:~ sdm$ md5 2
 MD5 (2) = 8f5ef511be1a03fd73337c334933
 
  On Jun 2, 1:18 pm, Ikai L (Google) ika...@google.com wrote:
  Thanks for bringing this up, Tim. Anyone else seeing this
 problem?
   If
 so,
  please post details. Are you guys setting any kind of cache
 headers?
 
  I'm going to try to reproduce these issues, so any information
 will
   be
  helpful.
 
  On Wed, Jun 2, 2010 at 9:14 AM, J j.si...@earlystageit.com
 wrote:
   Thanks, Tim, for letting me know I'm not going insane.
 
   To the Google guys, this problem seems to have started
 yesterday
   afternoon (1:30-ish PM, EDT) in case it helps you track down
 the
   cause.
 
   On Jun 2, 8:19 am, Tim Hoffman zutes...@gmail.com wrote:
Hi
 
We have been trying to deploy a major revision of one of
 our
   apps.
 
Under the specific version 2-0-0.latest...  all the new
 css/js
   and
static images are available.
 
When we make the new version default, the css, js and
 static
   files
 are
accessible via appid.appspot.com
 
However when accessing the same site via the google apps
 domain
mapping we are still
getting

Re: [google-appengine] mapreduce

2010-06-02 Thread Justin Sanders

Take a look at Brett Slatkin's session from GoogleIO:

http://code.google.com/events/io/2010/sessions/high-throughput-data-pipelines-appengine.html

He specifically shows how to build materialized views on changing data using
the task queue.  I haven't tried it out but it is impressive and seems
reliable as he is using the technique with
http://pubsubhubbub.appspot.com/for the fan out problem.

Justin

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[google-appengine] Re: DeadlineExceeded on cold hits.

2010-06-02 Thread scarlac

+1
We've been having way too many of these errors for two weeks. Downtime
is acceptable but this is ridiculous. This can't keep up or we'll have
to rewrite our app and stop using appengine. We choose Google and
expected stability and scalability so I'm very disappointed at the
moment.

On Jun 2, 12:16 am, Dave Peck davep...@gmail.com wrote:
 Hi,

 In the past week, I've seen an alarming number of DeadlineExceeded
 exceptions on cold hits to my applications.

 Most of the stack traces are shallow -- things blow up well before my
 code is hit. Seehttp://pastie.org/988269for a stack trace.

 The `bootstrap.py` file is more-or-less a direct copy of the `main.py`
 from Rietveld.

 Can someone on the App Engine team please point me in the right
 direction here? This is a big change in GAE's behavior in the past
 week, and it is affecting many of my applications (citygoround which
 has been in production for half a year; code-doctor which is under
 development, etc.)

 Cheers,
 Dave Peck

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[google-appengine] Re: Anomaly at Datastore

2010-06-02 Thread Aaron

The status page says the datastore is back to normal.  However, I'm
still hitting the soft memory limit on every request.  Is the
datastore really back to normal operation?

Best,
Aaron

On Jun 2, 11:01 am, Rafael Sierra rafaeljs...@gmail.com wrote:
 On Wed, Jun 2, 2010 at 2:53 PM, Wesley C (Google) wesc+...@google.com wrote:

  the status page should be working again... there was a configuration
  issue this morning regarding that which has been resolved.

  as far as performance goes, there's an active and ongoing effort to
  address the increased latency developers are seeing... we'll post
  updates when we have something concrete. believe it or not, we're
  working on trying to make things *more* stable, and not the other way
  around.

 Ok, I do believe, I just was missing the information :)



  thanks for your patience!
  -- wesley
  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Thank you.

  Core Python Programming, Prentice Hall, (c)2007,2001
  Python Fundamentals, Prentice Hall, (c)2009
    http://corepython.com

  wesley.j.chun :: wesc+api-at-google-dot-com
  developer relations :: google app engine
  @app_engine :: googleappengine.blogspot.com

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[google-appengine] View this page Google App Engine Open Source Projects

2010-06-02 Thread Jason (Google)

Added jappstart

Click on 
http://groups.google.com/group/google-appengine/web/google-app-engine-open-source-projects
- or copy  paste it into your browser's address bar if that doesn't
work.

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Re: [google-appengine] Re: Another easy question