[appengine-java] Re: jdo on app engine
I've created a tool which generates whole DAO layer for GAE using JDO. So you must create a source configuration file manually - you define the schema - or the datastore model there. But you will get all classes which you need. It includes DTO pojos which you can use for transfering data between server and client using AJAX/GWT. And it also includes so called DTO-implementation classes which are actually JDO classes which you probably ask for. You can find more information at http://audao.spoledge.com Vaclav On Dec 1, 7:30 am, asianCoolz second.co...@gmail.com wrote: 1.any tool to generate jdo pojo? 2. any impact of using primary key as long and autoincrement it rather than using jdo 's key ? I do understand that max autoincrement for sequence is e+27, how about KEY ? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Point to application database with JUnit Test
Hi Alex, for what I remember I tried to copy app db to the right location of junit test but system was unable to read it. 2009/12/2 djd alex.dobjans...@gmail.com: Yeah, you create a sample database with 'new File(.)'. Actually I did not connect to an existing database, but the document was enough for me. And I also did JUnit testing on my DAOs. For the actual (local) database, you could try to open the file (I don't remember the location and/or name right now, but it's there in war or WEB-INF directory). Hope this helps, Alex On Dec 1, 8:40 pm, Zenon zeno...@gmail.com wrote: As a matter fact I didn't have successfull connecting on the same database of my application.. I can connect to my local db test, but not with my app data. If I don't mistake, that link you gave me explain only how to handle a junit db test 2009/12/1 djd alex.dobjans...@gmail.com: How about this? http://code.google.com/appengine/docs/java/howto/unittesting.html It shows you how to wire the Gae storage to Junit On Dec 1, 1:44 pm, Zenon zeno...@gmail.com wrote: Hi all, I would to point to the application database with MyJUnitTest. I did some experiments but none did succesfull. Any suggest? Thanks in advance. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Discussion on will-it-play-in-app-engine
I think that's just a case of an unfortunate glitch in the specific test page, rather than an issue with Jersey on Google App Engine. I have Jersey running fine on Google App Engine following the updates made this week to the 1.1.5 version by the authors of Jersey. Andy On Dec 1, 6:04 pm, Iqbal Yusuf Dipu iqbalyusufd...@gmail.com wrote: On your blog entry here --http://blogs.sun.com/sandoz/entry/jersey_apps_can_now_be I tried the link http://jersey-jax-rs.appspot.com/test/resource; and I get This page contains the following errors: error on line 1 at column 1: Document is empty Below is a rendering of the page up to the first error. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Point to application database with JUnit Test
This type of tests works for me without any problem. Could you provide more details and what you mean exactly by system was unable to read it ? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: jdo on app engine
If you use pure long primary key than it can impact transactional mechanism which is related to so called entity groups identified by primary key values. So before designing your entity classes read through: http://code.google.com/intl/pl/appengine/docs/java/datastore/transactions.html -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Point to application database with JUnit Test
Well, I just copied my app data (local_db.bin) to JunitTest database directory replacing the old one, but whatever test I execute it returns no data. 2009/12/2 leszek leszek.ptokar...@gmail.com: This type of tests works for me without any problem. Could you provide more details and what you mean exactly by system was unable to read it ? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: can image aspect ratio
The Overview about the Image service Resize says You can resize the image while maintaining the same aspect ratio. It seems that it's a feature not a bug! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Spring MVC with annotations
The log shows this: org.springframework.web.servlet.FrameworkServlet initServletBean: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.annotation.internalPersistenceAnnotationProcessor': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: javax/naming/NamingException On Dec 2, 12:44 am, Rusty Wright rwright.li...@gmail.com wrote: Is there anything helpful in the error log? You can view it on the dashboard; https://appengine.google.com/ Rafael Reuber wrote: Hi Toby, The error only happens when I try to access the application through the GAE. It's funny, In my computer it work! The GAE throws erro, when I do deploy with these tag context:component-scan base-package=br.com.project.controller / in my spring-context.xml On Nov 29, 11:23 am, Toby tobias.ro...@sunnymail.mobi wrote: Hi Rafael, What kind of error do you get, what annotations do you use? I used @Autowired and @Ressource and it worked fined. My main problem is that appengine unloads the webapp after short idle time. Whenever it is needed again it is reloaded which takes long and costs a lot of cpu time. I found that stripping annotations accelerated the process. Cheers, Tobias On Nov 28, 9:31 pm, Rafael Reuber psico.in...@gmail.com wrote: I developed an program with Spring MVC + annotations. He done in my computer. But when I make deploy and try acess the application, the GAE throws an error. Someone got use annotations with Spring MVC? -- Rafael Reuber MSN/Gtalk: psico.in...@gmail.com -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Spring MVC with annotations
this is a known issue.. there are several threads in this forum about it http://groups.google.com/group/google-appengine-java/search?group=google-appengine-javaq=naming+exception On 2 Dez., 12:33, Rafael Reuber psico.in...@gmail.com wrote: The log shows this: org.springframework.web.servlet.FrameworkServlet initServletBean: Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.annotation.internalPersistenceAnnotationProcessor': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: javax/naming/NamingException On Dec 2, 12:44 am, Rusty Wright rwright.li...@gmail.com wrote: Is there anything helpful in the error log? You can view it on the dashboard; https://appengine.google.com/ Rafael Reuber wrote: Hi Toby, The error only happens when I try to access the application through the GAE. It's funny, In my computer it work! The GAE throws erro, when I do deploy with these tag context:component-scan base-package=br.com.project.controller / in my spring-context.xml On Nov 29, 11:23 am, Toby tobias.ro...@sunnymail.mobi wrote: Hi Rafael, What kind of error do you get, what annotations do you use? I used @Autowired and @Ressource and it worked fined. My main problem is that appengine unloads the webapp after short idle time. Whenever it is needed again it is reloaded which takes long and costs a lot of cpu time. I found that stripping annotations accelerated the process. Cheers, Tobias On Nov 28, 9:31 pm, Rafael Reuber psico.in...@gmail.com wrote: I developed an program with Spring MVC + annotations. He done in my computer. But when I make deploy and try acess the application, the GAE throws an error. Someone got use annotations with Spring MVC? -- Rafael Reuber MSN/Gtalk: psico.in...@gmail.com -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-appengine-java?hl=en.- Zitierten Text ausblenden - - Zitierten Text anzeigen - -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: AppEngine needs an AppStore
Here is another model and the one we pursue now: One may login to our app with a Google account, but in order to be able to use the app to full capacity, the user must subscribe (e.g. pay for it). On any case, a GAE marketplace would be a site where we the app developers promote our products and services and those products and services may be distributed in a variety of business models. Cool idea: a marketplace like what you describe could be an App Engine app itself ... Of course!!! Jorge Gonzalez On Dec 1, 1:08 pm, Ikai L (Google) ika...@google.com wrote: I see what you mean. Say, an application marketplace where folks can download source code for applications and deploy to their own App Engine instances, get support, download updates, and so forth. It's an interesting idea. We're focusing on Apps for Google Apps for the Enterprise in a SaaS model rather than an a la carte software download model. Cool idea: a marketplace like what you describe could be an App Engine app itself ... On Tue, Dec 1, 2009 at 7:16 AM, Prashant antsh...@gmail.com wrote: +1 -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Processing incoming email
tetest, thank you, the complete working example would be then:
MimeMessage message = new MimeMessage(session,
request.getInputStream());
StringBuffer sb = new StringBuffer();
sb.append(From: );
Address[] senders = message.getFrom();
for (int i = 0; i senders.length; i++)
sb.append(senders[i].toString()).append(; );
sb.append(\n);
sb.append(To: );
Address[] receivers = message.getAllRecipients();
for (int i = 0; i receivers.length; i++)
sb.append(receivers[i].toString()).append(; );
sb.append(\n);
InputStream is = (InputStream) message.getContent();
String contentType = message.getContentType();
ByteArrayDataSource byteArrayDataSource = new
ByteArrayDataSource
(is, contentType);
Multipart mmp = new MimeMultipart(byteArrayDataSource);
for (int i = 0; i mmp.getCount(); i++) {
Part p = mmp.getBodyPart(i);
if (text/plain.equals(p.getContentType())) {
if (i 0) sb.append(***);
ByteArrayInputStream bais =
(ByteArrayInputStream) p.getContent
();
byte[] buffer = new byte[1024];
int length = 0;
while ((length = bais.read(buffer)) !=
-1)
sb.append(new String(buffer, 0,
length));
}
}
Does not work reliably (java.io.IOException: Truncated quoted
printable data and java.lang.OutOfMemoryError: Java heap space) but
that is either other bug in GAE or my code.
On Dec 1, 4:38 am, tetest tet...@gmail.com wrote:
Hi,
Follow this thread:
http://groups.google.com/group/google-appengine-java/browse_thread/th...http://groups.google.com/group/google-appengine-java/browse_thread/th...
Though something only has to be able to be useful.
thanks.
On 11月30日, 午後11:34, Peter Ondruska peter.ondru...@gmail.com wrote:
I am following instructions
onhttp://code.google.com/appengine/docs/java/mail/receiving.html
to process incoming mail but failing on retrieving content (headers
are fine).
The getContent() method returns an object that implements the
Multipart interface. You can then call getCount() to determine the
number of parts and getBodyPart(int index) to return a particular body
part.
MimeMultipart mmp = (MimeMultipart) message.getContent();
Error:
java.lang.ClassCastException: java.io.ByteArrayInputStream cannot be
cast to javax.mail.internet.MimeMultipart
And when I check at runtime what class is returned by getContent() it
really is java.io.ByteArrayInputStream.
Am I doing something wrong?
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: How many cache can I create using JCacheFactory
Hi Ikai, Thanks your reply. Got it. Because the GAE memcache has quota limitation, should I use my own cache(singleton in my WebApp) as first level, and use memcache as second level, then I save my quota? On 11月12日, 上午10时37分, Ikai L (Google) ika...@google.com wrote: Jay, It's not necessary to create a Map of caches. The Cache object represents a single Memcache client talking to a distributed, in-memory store. There's no gain for creating separate cache client instances. On Tue, Nov 10, 2009 at 8:38 PM, jay jay...@gmail.com wrote: Hi friends, I want to use different cache save different sorts of Objects, so I create several caches in a HashMap. But when I debug my program, I realize only one cache in the lower layer... Is it true? private MapString, Cache caches = new HashMapString, Cache(); cacheFactory = CacheManager.getInstance ().getCacheFactory(); caches.put(Account.class.getSimpleName(), cacheFactory.createCache (Collections.emptyMap())); caches.put(AddressBook.class.getSimpleName(), cacheFactory.createCache(Collections.emptyMap())); -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: task queue once-only semantics
Yes, I received your patch and it's on my TODO list to review it and add it to the code. Unfortunately, I've been a bit backed up with other projects. I'm trying to get a new version of GaeVFS ready for release in the next few weeks and will try to include your patch. Vince On Wed, Dec 2, 2009 at 12:08 AM, James H james.hollier...@gmail.com wrote: Ah, short execution time and bullet-proof re-runs...I see how memcache would work in this case. On another topic, I recall you wrote GaeVFS...I recently added a comment related to a patch for checking file timestamp to avoid redundant downloads. On the surface it appears straight forward...if the http header was supplied then just compare with the Entity's timestamp and you're done. Is it really that simple? Are you or someone else familiar with the code considering adding this check? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Sending mail with the mail api
Hi Jason,
i have got the same problem too. the Code was copied and pasted
from
http://code.google.com/appengine/docs/java/mail/usingjavamail.html. The Mail
was sended from a deployed application. I have not received any Mail, but
the Quotas said that i have sent out mails. there is neither error message
nor errorlogs. i also tried the code from Sadhasivam Jayabalaganesan's mail,
it doesn't work for me either.
-ray
2009/9/11 Jason (Google) apija...@google.com
Just to clarify, you are sending these from a deployed application,
correct?
- Jason
On Tue, Sep 8, 2009 at 9:06 PM, king kingalpha...@gmail.com wrote:
I have the same problem. I sent out 3 email and have been waiting for
hours, still no email arrived at my inbox, there is no error message
either. Does anyone have any update on this issue?
On Aug 20, 12:00 pm, DrMorten morten.dalgaard.niel...@gmail.com
wrote:
Nothing in the log about failed messages. I've made a Grails Service
sending my emails. Basiclly I just cut and pasted the info fromhttp://
code.google.com/appengine/docs/java/mail/usingjavamail.html,
and modified it to fit my needs. Just as a quick version to get it
working. I pasted the service below.
class MailService {
boolean transactional = true
def sendMail(subject, msgBody, from, fromText, too, tooText) {
Properties props = new Properties();
Session session = Session.getDefaultInstance(props,
null);
try {
def msg = new MimeMessage(session);
msg.setFrom(new InternetAddress(from,
fromText));
msg.addRecipient(Message.RecipientType.TO,
new
InternetAddress(too, tooText));
msg.setSubject(subject);
msg.setText(msgBody);
Transport.send(msg);
} catch (AddressException e) {
log.error(address error sendingmail, e)
} catch (MessagingException e) {
log.error(messaging exception sendingmail, e)
}
}
}
On Aug 20, 8:48 pm, Jason (Google) apija...@google.com wrote:
Did you check your application's logs to see if there were any errors
sending the messages? What code were you using to send the emails?
- Jason
On Wed, Aug 19, 2009 at 7:47 AM, DrMorten
morten.dalgaard.niel...@gmail.com
wrote:
I sent about 7 emails last night to my own email address. They havnt
arrived, Ive checked the code and the addresses were right. The
Quotas
say that I've sent the e-mails.
Anyone have an idea of how long it should take to send to a gmail
address?
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to
google-appengine-java@googlegroups.com
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en
-~--~~~~--~~--~--~---
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: How many cache can I create using JCacheFactory
Memcache quotas are so high that you're unlikely to hit them. You may get *latency* benefits from having your own first-level cache in memory, but bear in mind that you don't have a whole lot of space to work with, and the hit rates will decrease significantly as your traffic increases (unlike memcache). I would recommend only doing caching in memory only for the scope of a single request (i.e. don't request the same data from memcache more than once per request), and using the bulk memcache APIs wherever possible (e.g. getAll and putAll()). On Wed, Dec 2, 2009 at 8:00 AM, jay jay...@gmail.com wrote: Hi Ikai, Thanks your reply. Got it. Because the GAE memcache has quota limitation, should I use my own cache(singleton in my WebApp) as first level, and use memcache as second level, then I save my quota? On 11月12日, 上午10时37分, Ikai L (Google) ika...@google.com wrote: Jay, It's not necessary to create a Map of caches. The Cache object represents a single Memcache client talking to a distributed, in-memory store. There's no gain for creating separate cache client instances. On Tue, Nov 10, 2009 at 8:38 PM, jay jay...@gmail.com wrote: Hi friends, I want to use different cache save different sorts of Objects, so I create several caches in a HashMap. But when I debug my program, I realize only one cache in the lower layer... Is it true? private MapString, Cache caches = new HashMapString, Cache(); cacheFactory = CacheManager.getInstance ().getCacheFactory(); caches.put(Account.class.getSimpleName(), cacheFactory.createCache (Collections.emptyMap())); caches.put(AddressBook.class.getSimpleName(), cacheFactory.createCache(Collections.emptyMap())); -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: AppEngine needs an AppStore
What we really, really need is something similar to Amazon DevPay: http://aws.amazon.com/devpay/ Vince On Tue, Dec 1, 2009 at 2:08 PM, Ikai L (Google) ika...@google.com wrote: I see what you mean. Say, an application marketplace where folks can download source code for applications and deploy to their own App Engine instances, get support, download updates, and so forth. It's an interesting idea. We're focusing on Apps for Google Apps for the Enterprise in a SaaS model rather than an a la carte software download model. Cool idea: a marketplace like what you describe could be an App Engine app itself ... On Tue, Dec 1, 2009 at 7:16 AM, Prashant antsh...@gmail.com wrote: +1 -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: task queue once-only semantics
Great! We'll talk more when I start using it shortly. On Dec 2, 8:25 am, Vince Bonfanti vbonfa...@gmail.com wrote: Yes, I received your patch and it's on my TODO list to review it and add it to the code. Unfortunately, I've been a bit backed up with other projects. I'm trying to get a new version of GaeVFS ready for release in the next few weeks and will try to include your patch. Vince On Wed, Dec 2, 2009 at 12:08 AM, James H james.hollier...@gmail.com wrote: Ah, short execution time and bullet-proof re-runs...I see how memcache would work in this case. On another topic, I recall you wrote GaeVFS...I recently added a comment related to a patch for checking file timestamp to avoid redundant downloads. On the surface it appears straight forward...if the http header was supplied then just compare with the Entity's timestamp and you're done. Is it really that simple? Are you or someone else familiar with the code considering adding this check?- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] no .js after deployment
I've deployed an application (quite tested in host mode) to the app engine After the deployment from eclipse (using the plugin) it seems the generated javascript (app.nocache.js) is missing (getting 404). Any chance to check what files were actually deployed? thanks Jiri -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] DWR SUPPORT
Hi all, I would like to use the DWR frameworke to develop my own website on GAE.I had search a lot by Google, but there were not so many article about it. Some said GAE did not support DWR while I had read about Will it play in App Engine.It showed that Direct Web Remoting (DWR) Version(s): 2.0.5, 3.0 RC1 Status: COMPATIBLE I built a test project with framework Spring + DWR on Eclipse 3.4 ,the JSP page showed correctly and the methods tests of the http:// localhost:8080/dwr/index.html passed.However,when related the Javascript created by DWR on the JSP,the methods alert undifined. does GAE support non-static javascript created by DWR? can someone give me some advices? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Processing incoming email
Peter,
I'm working on a cookbook entry for processing incoming mail in Java. Here's
some code I had working. Can you take a look at this and see if there's
anything you can adapt?
import com.google.appengine.api.datastore.Blob;
import com.google.appengine.api.datastore.Key;
import javax.jdo.annotations.*;
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Image {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Key key;
@Persistent
private Blob data;
@Persistent
private String contentType;
public Image(Blob data, String contentType) {
this.data = data;
this.contentType = contentType;
}
public Key getKey() {
return key;
}
public Blob getData() {
return data;
}
public void setData(Blob data) {
this.data = data;
}
public String getContentType() {
return contentType;
}
public void setContentType(String contentType) {
this.contentType = contentType;
}
}
import Image;
import com.google.appengine.api.datastore.Blob;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import javax.mail.*;
import javax.mail.util.ByteArrayDataSource;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.jdo.PersistenceManager;
import java.io.IOException;
import java.io.InputStream;
import java.io.ByteArrayOutputStream;
import java.util.Properties;
public class IncomingMailHandlerServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
Properties props = new Properties();
Session session = Session.getDefaultInstance(props, null);
try {
MimeMessage message = new MimeMessage(session,
request.getInputStream());
InputStream inputStream = message.getInputStream();
ByteArrayDataSource inboundDataSource = new
ByteArrayDataSource(inputStream, message.getContentType());
Multipart inboundMultipart = new
MimeMultipart(inboundDataSource);
for (int i = 0; i inboundMultipart.getCount(); i++) {
BodyPart part = inboundMultipart.getBodyPart(i);
if (part.getDisposition() == null) {
// This is just a plain text part
} else if (part.getDisposition().equals(attachment)) {
// Create a new ByteArrayDataSource with this part
MimeBodyPart inboundMimeBodyPart = (MimeBodyPart) part;
// The call to getContentType here may return a filename
along with content type. Ex:
// image/jpeg; name=filename.jpg
// It doesn't seem to affect display in a browser but
you may wish to sanitize it
String contentType =
inboundMimeBodyPart.getContentType();
InputStream is = part.getInputStream();
byte[] rawData, buffer = new byte[8192];
int len;
ByteArrayOutputStream output = new
ByteArrayOutputStream();
try {
while ((len = is.read(buffer, 0, buffer.length)) !=
-1) output.write(buffer, 0, len);
rawData = output.toByteArray();
} finally {
output.close();
}
PersistenceManager pm =
PMF.get().getPersistenceManager();
Image image = new Image(new Blob(rawData), contentType);
try {
pm.makePersistent(image);
} finally {
pm.close();
}
}
}
} catch (MessagingException e) {
throw new ServletException(e);
}
}
}
On Wed, Dec 2, 2009 at 6:00 AM, Peter Ondruska peter.ondru...@gmail.comwrote:
tetest, thank you, the complete working example would be then:
MimeMessage message = new MimeMessage(session,
request.getInputStream());
StringBuffer sb = new StringBuffer();
sb.append(From: );
Address[] senders = message.getFrom();
for (int i = 0; i senders.length; i++)
sb.append(senders[i].toString()).append(;
);
sb.append(\n);
sb.append(To: );
Address[] receivers = message.getAllRecipients();
for (int i = 0; i receivers.length; i++)
sb.append(receivers[i].toString()).append(;
);
sb.append(\n);
[appengine-java] Collections usge in Appengine Java
I tried using ArrayList in a persistent way, but its not getting persistent.. It adds the value when i call the add method, but for retriving it still says null.. Is this a bug or my programming fault ? Pls help -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Collections usge in Appengine Java
This is a common issue. You need to define a @FetchGroup( ) for your class
that names that member then add the FetchGroup to your persistence manager.
@FetchGroup( name=children, members={
@Persistent(name=childcollection)
})
public class
//---
PersistenceManager pm;
FetchPlan fp = pm.getFetchPlan();
fp.addGroup(children);
On Wed, Dec 2, 2009 at 9:50 AM, Avis developer sivaram.subb...@gmail.comwrote:
I tried using ArrayList in a persistent way, but its not getting
persistent.. It adds the value when i call the add method, but for
retriving it still says null..
Is this a bug or my programming fault ? Pls help
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to
google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com
.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: can image aspect ratio
Hi Moissinac, thanks for replying. Actually I don't really care if it's a feature or bug, I just want to know how I can change the aspect ratio. Any help would be greatly appreciated. On Dec 2, 1:51 am, moissinac jcmoissi...@gmail.com wrote: The Overview about the Image service Resize says You can resize the image while maintaining the same aspect ratio. It seems that it's a feature not a bug! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] SimpleDS 0.8.1 has been released
Wow, looking great! Did you want this added to the list of Open Source
projects?
https://groups.google.com/group/google-appengine/web/google-app-engine-open-source-projects
On Tue, Dec 1, 2009 at 3:46 AM, Nacho Coloma icol...@gmail.com wrote:
Hi all,
SimpleDS, an alternative storage framework for GAE, has hit its 0.8.1
release. This release includes a couple of interesting features:
Multiple valued index
===
This is a little experiment that is working quite well for us. A new
IndexManager class will store and retrieve simple representations of
the Entity Index pattern introduced in Google I/O 2009. A simple
example:
@Entity
@MultivaluedIndex(name=invitations, itemClass=Key.class)
public class User {
/* no 'invitations' attribute */
}
// get the list of user keys that received an invitation from this
user
SetKey invitationsSent = indexManager.get(senderUserKey,
invitations);
More details can be found here:
http://code.google.com/p/simpleds/wiki/IndexManager
Parent key validation
===
We make extensive use of the key nesting mechanism included in GAE. As
a consequence, the most common mistake in our testsuite was a
consequence of setting the wrong parent instance. This version of
SimpleDS includes an improved @Entity annotation that lets you specify
the allowed entity parent classes, which can be multiple (as an
example, an Address object can be nested inside a Person or a Company
ancestor). More about this here:
http://code.google.com/p/simpleds/wiki/ParentChild
Easier singleton access
=
Spring does not like static attributes, so we had to try different
alternatives to get static singleton access. EntityManagerFactory and
IndexManagerFactory have been transformed to singleton containers to
be used where Dependency Injection cannot be used easily (most
notably, inside JSP custom tags). After configuring your Spring
container, you will be able of invoking
EntityManagerFactory.getEntityManager() and
IndexManagerFactory.getIndexManager().
Spring dependencies have also been removed as much as possible, but it
is still being used as an introspection framework. The example of
configuration without Spring has been updated to reflect that.
Changes that could break your current setup
As a consequence of the previous point, the spring configuration has
changed:
http://code.google.com/p/simpleds/wiki/GettingStarted
The public constructor of SimpleQuery and PagedQuery have also been
removed. Instead, you should use entityManager.createQuery() and
entityManager.createPagedQuery()
Any feedback on this release would be most welcome. Best regards,
Nacho.
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to
google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com
.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Persisting class hierarchies
Alex,
There's a danger here of overengineering when it comes to mapping objects to
datastore entities. Unless you absolutely need different behavior between
the subclasses of Animal, you may want to stay away from using types to
convey information and use a field instead. In the datastore, entities are
actually loosely typed, and you can specify the type of Animal in a field
rather than as an Entity kind. This may or may not be your actual example,
so I may be way off base here.
As far as creating a DAO layer goes - what do you mean? Are you referring to
creating a DAO layer by creating a DAO class for each domain class?
On Tue, Dec 1, 2009 at 7:44 AM, djd alex.dobjans...@gmail.com wrote:
Hi guys,
I need your opinion regarding this issue :
The persistence classes get more complex as the application grows and
gets more complex. For my question, consider the following example:
Animal {
long id,
float weight,
float speed
}
JungleAnimal extends Animal {
ListAnimal breakfast;
}
Lion extends JungleAnimal {
boolean isMale
}
So we have a simple class hierarchy, everything works with GAE (I have
simplified code above and it turned out to not be Java anymore) -
Animal implements Serializable, it is annotated with
@PersistenceCapable, all fields have @Persistent, etc.
So, now that I have this basic framework, I write an insert method for
Lion and this method will write all the fields inherited from
hierarchy.
The question is, did anybody think about having some DAOs for each
class, and each of them being concerned with the fields from that
class alone (and calling additional DAOs as the fields need to be
persisted up in the hierarchy)? Is that even possible?
Thanks, I hope everything is clear. I would really appreciate your
opinion on this matter,
Alex
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to
google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com
.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java group.
To post to this group, send email to google-appengine-j...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine-java+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Qs: (1) data safe in GAE (2) delete existing app
John, Yes, you can delete applications: http://code.google.com/appengine/kb/adminconsole.html#delete_app We do not make it a practice to look at customer data. You'll want to read our terms of service: http://code.google.com/appengine/terms.html On Tue, Dec 1, 2009 at 6:13 PM, John Lin john...@google.com wrote: • Questions for Google App Engine. I use the GAE (Google App Engine) Admin Console to create an application. Could I delete this application after it is created ? if yes, then how ? if no, then I will reach my quota 10 sooner or later. Could I edit this application id or title after the application is created ? Could I save confidential data from my web application into GAE data store. The GAE engineer or any Google engineer can not look into this data. Ex: HR confidential data or outside customer confidential data. Is this possible ? If possible, how do you achieve this ? If not, then how do you convince the outside customers they are going to save some confidential data into your app engine ? Please advise me. Thanks. John -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Random App Engine errors
We are receiving random App Engine errors the last few days on an app that has been performing fine for months failed web com.google.apphosting.runtime.HardDeadlineExceededError: This request (162d54b3b9e9) started at 2009/12/02 19:21:46.098 UTC and was still executing at 2009/12/02 19:22:15.544 UTC. at java.security.PrivilegedActionException.init(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at com.google.apphosting.runtime.security.UserClassLoader $PrivilegedClassLoader.loadPrivilegedClass(UserClassLoader.java:123) at com.google.apphosting.runtime.security.UserClassLoader.loadClassImpl (UserClassLoader.java:485) at com.google.apphosting.runtime.security.UserClassLoader.loadClass (UserClassLoader.java:446) at java.lang.ClassLoader.loadClass(Unknown Source) at org.springframework.core.type.classreading.AnnotationMetadataReadingVisitor $1.visitEnd(AnnotationMetadataReadingVisitor.java:67) at org.springframework.asm.ClassReader.a(Unknown Source) at org.springframework.asm.ClassReader.accept(Unknown Source) at org.springframework.asm.ClassReader.accept(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.getAnnotationMetadata (SimpleMetadataReader.java:55) at org.springframework.core.type.filter.AnnotationTypeFilter.matchSelf (AnnotationTypeFilter.java:68) at org.springframework.core.type.filter.AbstractTypeHierarchyTraversingFilter.match (AbstractTypeHierarchyTraversingFilter.java:55) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isCandidateComponent (ClassPathScanningCandidateComponentProvider.java:252) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents (ClassPathScanningCandidateComponentProvider.java:192) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan (ClassPathBeanDefinitionScanner.java:201) at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse (ComponentScanBeanDefinitionParser.java:84) at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse (NamespaceHandlerSupport.java:69) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement (BeanDefinitionParserDelegate.java:1297) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement (BeanDefinitionParserDelegate.java:1287) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions (DefaultBeanDefinitionDocumentReader.java:135) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions (DefaultBeanDefinitionDocumentReader.java:92) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions (XmlBeanDefinitionReader.java:507) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions (XmlBeanDefinitionReader.java:398) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions (XmlBeanDefinitionReader.java:342) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions (XmlBeanDefinitionReader.java:310) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions (AbstractBeanDefinitionReader.java:143) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions (AbstractBeanDefinitionReader.java:178) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions (AbstractBeanDefinitionReader.java:149) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions (XmlWebApplicationContext.java:124) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions (XmlWebApplicationContext.java:92) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory (AbstractRefreshableApplicationContext.java:123) at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory (AbstractApplicationContext.java:422) at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:352) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:402) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext (FrameworkServlet.java:316) at org.springframework.web.servlet.FrameworkServlet.initServletBean (FrameworkServlet.java:282) at
Re: [appengine-java] Random App Engine errors
On Wed, Dec 2, 2009 at 8:39 PM, Jason.LTech jason.keic...@gmail.com wrote: We are receiving random App Engine errors the last few days on an app that has been performing fine for months +1 ra failed web com.google.apphosting.runtime.HardDeadlineExceededError: This request (162d54b3b9e9) started at 2009/12/02 19:21:46.098 UTC and was still executing at 2009/12/02 19:22:15.544 UTC. at java.security.PrivilegedActionException.init(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at com.google.apphosting.runtime.security.UserClassLoader $PrivilegedClassLoader.loadPrivilegedClass(UserClassLoader.java:123) at com.google.apphosting.runtime.security.UserClassLoader.loadClassImpl (UserClassLoader.java:485) at com.google.apphosting.runtime.security.UserClassLoader.loadClass (UserClassLoader.java:446) at java.lang.ClassLoader.loadClass(Unknown Source) at org.springframework.core.type.classreading.AnnotationMetadataReadingVisitor $1.visitEnd(AnnotationMetadataReadingVisitor.java:67) at org.springframework.asm.ClassReader.a(Unknown Source) at org.springframework.asm.ClassReader.accept(Unknown Source) at org.springframework.asm.ClassReader.accept(Unknown Source) at org.springframework.core.type.classreading.SimpleMetadataReader.getAnnotationMetadata (SimpleMetadataReader.java:55) at org.springframework.core.type.filter.AnnotationTypeFilter.matchSelf (AnnotationTypeFilter.java:68) at org.springframework.core.type.filter.AbstractTypeHierarchyTraversingFilter.match (AbstractTypeHierarchyTraversingFilter.java:55) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.isCandidateComponent (ClassPathScanningCandidateComponentProvider.java:252) at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents (ClassPathScanningCandidateComponentProvider.java:192) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan (ClassPathBeanDefinitionScanner.java:201) at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse (ComponentScanBeanDefinitionParser.java:84) at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse (NamespaceHandlerSupport.java:69) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement (BeanDefinitionParserDelegate.java:1297) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement (BeanDefinitionParserDelegate.java:1287) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions (DefaultBeanDefinitionDocumentReader.java:135) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions (DefaultBeanDefinitionDocumentReader.java:92) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions (XmlBeanDefinitionReader.java:507) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions (XmlBeanDefinitionReader.java:398) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions (XmlBeanDefinitionReader.java:342) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions (XmlBeanDefinitionReader.java:310) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions (AbstractBeanDefinitionReader.java:143) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions (AbstractBeanDefinitionReader.java:178) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions (AbstractBeanDefinitionReader.java:149) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions (XmlWebApplicationContext.java:124) at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions (XmlWebApplicationContext.java:92) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory (AbstractRefreshableApplicationContext.java:123) at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory (AbstractApplicationContext.java:422) at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:352) at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:402) at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext (FrameworkServlet.java:316)
[appengine-java] Text Search Support for Java
Hi, This question is targeted at Google guys. Is there any plans to have limited support for full text search for Java, i.e. something like the equivalent of SearchableModel in Python, and if so when can this be expected? When is FULL support for full text search be expected for appengine (Python and Java)? Regards, Len -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Change datastore filename on dev server?
Hey James, You can set the file that the datastore uses with the system property, datastore.backing_store. For example, dev_appserver.sh --jvm_flag=-Ddatastore.backing_store=c:\my_project_datastore.blob my_project\war On Sat, Nov 21, 2009 at 12:02 PM, James Cooper jamespcoo...@gmail.comwrote: Hi, I'm running the GAE/J dev server via a maven build. It appears that it rebuilds the target/[project name] directory each build, which deletes the WEB-INF directory. Consequently my local datastore is deleted each time I do a build and restart my dev server. Is there a flag I can pass the dev server that will specify an alternate path for the local_db.bin file? Anyone else experiencing this when using maven with GAE? I'm not a maven expert, so there may be an alternate solution that preserves the WEB-INF dir across builds. thanks, -- James -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: GData Java API known to (not) work on GAE?
On Tue, Dec 1, 2009 at 3:21 AM, Bobby bobbysoa...@gmail.com wrote: Toby, there's one obstacle though, the GAE URLFetch timeout doesn't play nicely with the GData API. I've found that timeouts happen fairly frequently at peak hours, depending on the GData system you're accessing. There has been an issue posted to the issue tracker about this, but it's indicated that a fix isn't planned Do you have a pointer to this issue? I tried searching but couldn't find anything relevant. - personally i don't think doubling the timeout interval would help much either. In the future would it be possible for developers to allow certain scripts to go over some of the imposed restrictions, such as the URLFetch timeout interval, at whatever cost is appropriate? Without this capability, server side API calls really suffer. We're working on ways to deal better with long (for example several minutes), blocking operations that are out of developers' control, and URLFetch is definitely one of our use cases. BTW, Guillaume, if you're using GWT on your project consider using the gwt-gdata (http://code.google.com/p/gwt-gdata/) library, it's not as complete as the Java library, as far as systems, but it can help reduce AppEngine load since the requests go directly to GData, from the client. Bobby On Nov 30, 2:15 pm, Guillaume Laforge glafo...@gmail.com wrote: Ah excellent, I missed that information and had not seen that section in the knowledge base. Thanks a lot, Toby! On Mon, Nov 30, 2009 at 19:54, Toby Reyelts to...@google.com wrote: Gdata works fine in the Java runtime but, but you need to disable its cookie handler. On Mon, Nov 30, 2009 at 1:00 PM, Guillaume Laforge glafo...@gmail.com wrote: Hi all, I was wondering whether anyone had succeeded using the GData APIs on their GAE applications? I wanted to access the Picasa Web Albums, using the Java libraries of GData. But it seems it's not possible, as I'm getting some errors (locally, I have not tried deployed in the cloud): ava.security.AccessControlException: access denied (java.net.NetPermission getCookieHandler) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:151) at java.net.CookieHandler.getDefault(CookieHandler.java:58) at com.google.gdata.client.http.GoogleGDataRequest$GoogleCookieHandler.init(GoogleGDataRequest.java:316) at com.google.gdata.client.http.GoogleGDataRequest$GoogleCookieHandler.init(GoogleGDataRequest.java:305) at com.google.gdata.client.http.GoogleGDataRequest.clinit(GoogleGDataRequest.java:408) at com.google.gdata.client.http.GoogleGDataRequest$Factory.createRequest(GoogleGDataRequest.java:73) at com.google.gdata.client.http.HttpGDataRequest$Factory.getRequest(HttpGDataRequest.java:162) at com.google.gdata.client.Service.createRequest(Service.java:697) at com.google.gdata.client.GoogleService.createRequest(GoogleService.java:525) at com.google.gdata.client.Service.createFeedRequest(Service.java:1074) at com.google.gdata.client.Service.getFeed(Service.java:915) at com.google.gdata.client.GoogleService.getFeed(GoogleService.java:631) at com.google.gdata.client.Service.getFeed(Service.java:935) I guess the GData API is not GAE-compliant? Am I correct? -- Guillaume Laforge Groovy Project Manager Head of Groovy Development at SpringSource http://www.springsource.com/g2one -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Guillaume Laforge Groovy Project Manager Head of Groovy Development at SpringSourcehttp:// www.springsource.com/g2one -- You
[appengine-java] Unable to update: com.google.appengine.tools.admin.JspCompilationException: Failed to compile the generated JSP java files.
I am getting this error when deploying the youtube direct application to google app engine. Unable to update: com.google.appengine.tools.admin.JspCompilationException: Failed to compile the generated JSP java files. Some forum suggested me to do these steps 1. Copy tools.jar into the AppEngine lib/shared directory. 2. Modify appcfg.cmd so it fully-qualifies the reference to java.exe in the JDK/bin directory. I did them but still no luck. Any suggestion will be welcomed. Thanks, Muhammad Umair -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: DWR SUPPORT
I'm using DWR 2.0 in my GAE app. I tried at one point to run 3.0, but ran into a number of issues that forced me to fall back to 2.0... On Dec 2, 12:37 am, noelo noelo1...@gmail.com wrote: Hi all, I would like to use the DWR frameworke to develop my own website on GAE.I had search a lot by Google, but there were not so many article about it. Some said GAE did not support DWR while I had read about Will it play in App Engine.It showed that Direct Web Remoting (DWR) Version(s): 2.0.5, 3.0 RC1 Status: COMPATIBLE I built a test project with framework Spring + DWR on Eclipse 3.4 ,the JSP page showed correctly and the methods tests of the http:// localhost:8080/dwr/index.html passed.However,when related the Javascript created by DWR on the JSP,the methods alert undifined. does GAE support non-static javascript created by DWR? can someone give me some advices? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Sticky sessions -- keeping a user on a single JVM
I have a GAE application that has some complex reporting requirements. Since there is currently no support for aggregate queries, my approach is to instead build up a collection of the items to query in memory, and then use JOSQL to perform the queries I need. For the most part this has worked out OK. Part of the complication, however, is that if I have a lot of items I need to collect from the datastore (tens or hundred of thousands of items), I need to do this in chunks, in order to stay under the 30 second request limit. I do this by issuing successive AJAX requests to initialize my data. The problem is that occasionally the app will hit some threshold that causes the GAE infrastructure to spin up a new JVM. In this case, all the items I've collected in memory in the first JVM will no longer be there, and I have to start over. For situations where it may take 10+ minutes to build up the collection of items, this becomes problematic. I'm wondering if there could be some way (via some special http header or otherwise) to ensure that all requests from a given user/session will stay stuck to the same JVM. Any other possible solutions I could consider? (Memcache, BTW, is not an option, as the amount of data I'm building up in memory is more than the 1MB maximum for memcache entries.) thanks, ...stephan -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Text Search Support for Java
Full text search isn't on our public roadmap: http://code.google.com/appengine/docs/roadmap.html The link describes what we plan on releasing in the upcoming months. On Wed, Dec 2, 2009 at 3:28 PM, steveb steve.buikhui...@gmail.com wrote: I'm also very interested in this feature. I'm looking at plugging in Lucene ( http://www.kimchy.org/searchable-google-appengine-with-compass ) to achieve search but I can imagine that there will be lots of issues with storage, indexing, security, CPU use etc with this solution. If we can get an indication of rough roadmap then we can decide whether to delay and wait or bite off this hairy bit of integration work. p.s. would it be possible to bridge between java and python SearchableModel? I think this would be less total work than plugging in Lucene. I'd be happy to hear any war stories in this area. Thanks, Steve On Dec 3, 7:53 am, lent lentakeu...@gmail.com wrote: Hi, This question is targeted at Google guys. Is there any plans to have limited support for full text search for Java, i.e. something like the equivalent of SearchableModel in Python, and if so when can this be expected? When is FULL support for full text search be expected for appengine (Python and Java)? Regards, Len -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Getting Unable to Upload error msg while deploying to Java GAE as of 6:00 pm EST.
Hello, We need help. As of 6pm EST we are consistently seeing an error msg across all our apps, right when it tries to upload index definitions. Dashboard does not show anything out of the ordinary. java.io.IOException: Error posting to URL: http://appengine.google.com/api/datastore/index/add?app_id=ifunandgamesversion=4; 500 Internal Server Error Server Error (500) A server error has occurred. The logs show the following: Unable to upload: java.io.IOException: Error posting to URL: http://appengine.google.com/api/datastore/index/add?app_id=ifunandgamesversion=4; 500 Internal Server Error Server Error (500) A server error has occurred. at com.google.appengine.tools.admin.ServerConnection.send (ServerConnection.java:143) at com.google.appengine.tools.admin.ServerConnection.post (ServerConnection.java:81) at com.google.appengine.tools.admin.AppVersionUpload.send (AppVersionUpload.java:415) at com.google.appengine.tools.admin.AppVersionUpload.updateIndexes (AppVersionUpload.java:143) at com.google.appengine.tools.admin.AppVersionUpload.doUpload (AppVersionUpload.java:120) at com.google.appengine.tools.admin.AppAdminImpl.update (AppAdminImpl.java:53) at com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy (AppEngineBridgeImpl.java:271) at com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace (DeployProjectJob.java:148) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run (InternalWorkspaceJob.java:38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Text Search Support for Java
FYI, it should be possible to port SearchableModel to Java and run it on top of our low-level datastore API. We have no immediate plans to do that, but it would make a nice open-source contribution. You may want to play around with SearchableModel in Python first to ensure that its performance characteristics and functionality are acceptable for your task before you invest the effort, though. On Wed, Dec 2, 2009 at 5:44 PM, Ikai L (Google) ika...@google.com wrote: Full text search isn't on our public roadmap: http://code.google.com/appengine/docs/roadmap.html The link describes what we plan on releasing in the upcoming months. On Wed, Dec 2, 2009 at 3:28 PM, steveb steve.buikhui...@gmail.com wrote: I'm also very interested in this feature. I'm looking at plugging in Lucene ( http://www.kimchy.org/searchable-google-appengine-with-compass ) to achieve search but I can imagine that there will be lots of issues with storage, indexing, security, CPU use etc with this solution. If we can get an indication of rough roadmap then we can decide whether to delay and wait or bite off this hairy bit of integration work. p.s. would it be possible to bridge between java and python SearchableModel? I think this would be less total work than plugging in Lucene. I'd be happy to hear any war stories in this area. Thanks, Steve On Dec 3, 7:53 am, lent lentakeu...@gmail.com wrote: Hi, This question is targeted at Google guys. Is there any plans to have limited support for full text search for Java, i.e. something like the equivalent of SearchableModel in Python, and if so when can this be expected? When is FULL support for full text search be expected for appengine (Python and Java)? Regards, Len -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: GData Java API known to (not) work on GAE?
Here's the issue entry: http://code.google.com/p/googleappengine/issues/detail?id=700can=1q=gdatacolspec=ID%20Type%20Status%20Priority%20Stars%20Owner%20Summary%20Log%20Component I appreciate any effort towards finding a way around this. Bobby On Dec 2, 5:21 pm, Toby Reyelts to...@google.com wrote: On Tue, Dec 1, 2009 at 3:21 AM, Bobby bobbysoa...@gmail.com wrote: Toby, there's one obstacle though, the GAE URLFetch timeout doesn't play nicely with the GData API. I've found that timeouts happen fairly frequently at peak hours, depending on the GData system you're accessing. There has been an issue posted to the issue tracker about this, but it's indicated that a fix isn't planned Do you have a pointer to this issue? I tried searching but couldn't find anything relevant. - personally i don't think doubling the timeout interval would help much either. In the future would it be possible for developers to allow certain scripts to go over some of the imposed restrictions, such as the URLFetch timeout interval, at whatever cost is appropriate? Without this capability, server side API calls really suffer. We're working on ways to deal better with long (for example several minutes), blocking operations that are out of developers' control, and URLFetch is definitely one of our use cases. BTW, Guillaume, if you're using GWT on your project consider using the gwt-gdata (http://code.google.com/p/gwt-gdata/) library, it's not as complete as the Java library, as far as systems, but it can help reduce AppEngine load since the requests go directly to GData, from the client. Bobby On Nov 30, 2:15 pm, Guillaume Laforge glafo...@gmail.com wrote: Ah excellent, I missed that information and had not seen that section in the knowledge base. Thanks a lot, Toby! On Mon, Nov 30, 2009 at 19:54, Toby Reyelts to...@google.com wrote: Gdata works fine in the Java runtime but, but you need to disable its cookie handler. On Mon, Nov 30, 2009 at 1:00 PM, Guillaume Laforge glafo...@gmail.com wrote: Hi all, I was wondering whether anyone had succeeded using the GData APIs on their GAE applications? I wanted to access the Picasa Web Albums, using the Java libraries of GData. But it seems it's not possible, as I'm getting some errors (locally, I have not tried deployed in the cloud): ava.security.AccessControlException: access denied (java.net.NetPermission getCookieHandler) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:151) at java.net.CookieHandler.getDefault(CookieHandler.java:58) at com.google.gdata.client.http.GoogleGDataRequest$GoogleCookieHandler.init(GoogleGDataRequest.java:316) at com.google.gdata.client.http.GoogleGDataRequest$GoogleCookieHandler.init(GoogleGDataRequest.java:305) at com.google.gdata.client.http.GoogleGDataRequest.clinit(GoogleGDataRequest.java:408) at com.google.gdata.client.http.GoogleGDataRequest$Factory.createRequest(GoogleGDataRequest.java:73) at com.google.gdata.client.http.HttpGDataRequest$Factory.getRequest(HttpGDataRequest.java:162) at com.google.gdata.client.Service.createRequest(Service.java:697) at com.google.gdata.client.GoogleService.createRequest(GoogleService.java:525) at com.google.gdata.client.Service.createFeedRequest(Service.java:1074) at com.google.gdata.client.Service.getFeed(Service.java:915) at com.google.gdata.client.GoogleService.getFeed(GoogleService.java:631) at com.google.gdata.client.Service.getFeed(Service.java:935) I guess the GData API is not GAE-compliant? Am I correct? -- Guillaume Laforge Groovy Project Manager Head of Groovy Development at SpringSource http://www.springsource.com/g2one -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to
[appengine-java] Re: GData Java API known to (not) work on GAE?
BTW, the example described in that issue is very specific and can be fixed through paging, but other scenarios, such as retrieving document contents or calling any intensive web service, not specifically GData, are more difficult, unless the web service is your own. Bobby On Dec 2, 6:59 pm, Bobby bobbysoa...@gmail.com wrote: Here's the issue entry:http://code.google.com/p/googleappengine/issues/detail?id=700can=1q... I appreciate any effort towards finding a way around this. Bobby On Dec 2, 5:21 pm, Toby Reyelts to...@google.com wrote: On Tue, Dec 1, 2009 at 3:21 AM, Bobby bobbysoa...@gmail.com wrote: Toby, there's one obstacle though, the GAE URLFetch timeout doesn't play nicely with the GData API. I've found that timeouts happen fairly frequently at peak hours, depending on the GData system you're accessing. There has been an issue posted to the issue tracker about this, but it's indicated that a fix isn't planned Do you have a pointer to this issue? I tried searching but couldn't find anything relevant. - personally i don't think doubling the timeout interval would help much either. In the future would it be possible for developers to allow certain scripts to go over some of the imposed restrictions, such as the URLFetch timeout interval, at whatever cost is appropriate? Without this capability, server side API calls really suffer. We're working on ways to deal better with long (for example several minutes), blocking operations that are out of developers' control, and URLFetch is definitely one of our use cases. BTW, Guillaume, if you're using GWT on your project consider using the gwt-gdata (http://code.google.com/p/gwt-gdata/) library, it's not as complete as the Java library, as far as systems, but it can help reduce AppEngine load since the requests go directly to GData, from the client. Bobby On Nov 30, 2:15 pm, Guillaume Laforge glafo...@gmail.com wrote: Ah excellent, I missed that information and had not seen that section in the knowledge base. Thanks a lot, Toby! On Mon, Nov 30, 2009 at 19:54, Toby Reyelts to...@google.com wrote: Gdata works fine in the Java runtime but, but you need to disable its cookie handler. On Mon, Nov 30, 2009 at 1:00 PM, Guillaume Laforge glafo...@gmail.com wrote: Hi all, I was wondering whether anyone had succeeded using the GData APIs on their GAE applications? I wanted to access the Picasa Web Albums, using the Java libraries of GData. But it seems it's not possible, as I'm getting some errors (locally, I have not tried deployed in the cloud): ava.security.AccessControlException: access denied (java.net.NetPermission getCookieHandler) at java.security.AccessControlContext.checkPermission(AccessControlContext.java:264) at java.security.AccessController.checkPermission(AccessController.java:427) at java.lang.SecurityManager.checkPermission(SecurityManager.java:532) at com.google.appengine.tools.development.DevAppServerFactory$CustomSecurityManager.checkPermission(DevAppServerFactory.java:151) at java.net.CookieHandler.getDefault(CookieHandler.java:58) at com.google.gdata.client.http.GoogleGDataRequest$GoogleCookieHandler.init(GoogleGDataRequest.java:316) at com.google.gdata.client.http.GoogleGDataRequest$GoogleCookieHandler.init(GoogleGDataRequest.java:305) at com.google.gdata.client.http.GoogleGDataRequest.clinit(GoogleGDataRequest.java:408) at com.google.gdata.client.http.GoogleGDataRequest$Factory.createRequest(GoogleGDataRequest.java:73) at com.google.gdata.client.http.HttpGDataRequest$Factory.getRequest(HttpGDataRequest.java:162) at com.google.gdata.client.Service.createRequest(Service.java:697) at com.google.gdata.client.GoogleService.createRequest(GoogleService.java:525) at com.google.gdata.client.Service.createFeedRequest(Service.java:1074) at com.google.gdata.client.Service.getFeed(Service.java:915) at com.google.gdata.client.GoogleService.getFeed(GoogleService.java:631) at com.google.gdata.client.Service.getFeed(Service.java:935) I guess the GData API is not GAE-compliant? Am I correct? -- Guillaume Laforge Groovy Project Manager Head of Groovy Development at SpringSource http://www.springsource.com/g2one -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more
[appengine-java] Java heap size
My application, an XML search engine, likes to manipulate its index data structures in memory during indexing. Searches are naturally much faster too when index data structures are in the heap. Unfortunately, I started running into OutOfMemory errors while indexing larger numbers of publications, but not huge number either: ~ 300. Data (typically byte arrays) I manipulate are on the order of 20 MB, again a very small mem requirement for this Century (both my dev computers are now 4 GB). Yes, I could bend over backwards and start using Datastore for some form of poor man's virtual memory but it wouldn't win all that much more space, would slow down and complicate the code. So... how much heap space do we have? Can we affect the size? -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Getting Unable to Upload error msg while deploying to Java GAE as of 6:00 pm EST.
Problem resolved by Google. https://groups.google.com/group/google-appengine-downtime-notify/browse_thread/thread/376ae214cf896c4f Thanks On Dec 2, 6:44 pm, oth other...@gmail.com wrote: Hello, We need help. As of 6pm EST we are consistently seeing an error msg across all our apps, right when it tries to upload index definitions. Dashboard does not show anything out of the ordinary. java.io.IOException: Error posting to URL:http://appengine.google.com/api/datastore/index/add?app_id=ifunandgam... 500 Internal Server Error Server Error (500) A server error has occurred. The logs show the following: Unable to upload: java.io.IOException: Error posting to URL:http://appengine.google.com/api/datastore/index/add?app_id=ifunandgam... 500 Internal Server Error Server Error (500) A server error has occurred. at com.google.appengine.tools.admin.ServerConnection.send (ServerConnection.java:143) at com.google.appengine.tools.admin.ServerConnection.post (ServerConnection.java:81) at com.google.appengine.tools.admin.AppVersionUpload.send (AppVersionUpload.java:415) at com.google.appengine.tools.admin.AppVersionUpload.updateIndexes (AppVersionUpload.java:143) at com.google.appengine.tools.admin.AppVersionUpload.doUpload (AppVersionUpload.java:120) at com.google.appengine.tools.admin.AppAdminImpl.update (AppAdminImpl.java:53) at com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy (AppEngineBridgeImpl.java:271) at com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace (DeployProjectJob.java:148) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run (InternalWorkspaceJob.java:38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Any single entity or entity group can only be updated about five times a second.
Tim, you might find some information related to that in this thread http://groups.google.com/group/google-appengine-java/browse_thread/thread/7ce9ce5c89f990f0/fd37d79492099ec6 HTH Dominik On 1 Dez., 23:42, Tim Cooper tco...@gmail.com wrote: Can anyone give me a clearer understanding of what an update is, in the statement: Any single entity or entity group can only be updated about five times a second. What level is an update? Is it a single update to a single field? Is it a set of field updates to a single Java object? Is it a single transaction, updating a single entity group? I have written my application expecting a update to mean a set of updates to a single entity group. In one XML request, I am populating my datastore with 900 child entities, all within a single entity group. The total amount of data involved is about 300K. I thought that this size would be quite manageable for AppEngine, and I wanted transactions to be atomic. However, it appears that this means 900 writes and so this call times out. The frustrating thing was that my application worked perfectly in the development environment. I thought that that was a good indication that it would work when deployed. It has been difficult to debug it using frequent deploys. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Any single entity or entity group can only be updated about five times a second.
Thanks, Dominik, but I still need to know more - (I understand that the 1-10 updates per second is only per entity group so scaleability comes with having fine-grained entity groups). * What is an update exactly? Is it a call to pm.makePersistent ()? Is it a call to tx.commit()? Is it a call to pm.flush()? Is it an update of a single field in a single Java object? Is it an invocation of doGet()/doPost()? * Suppose you want to do multiple updates within the one entity group within a single Java function. At what point is the 100ms cost incurred? Which function call blocks for the 100ms? * Is it possible to create 900 child entities in an entity group in a single Java function call, by structuring this creation of 900 objects as a single update? * If I don't use transactions, does this 1-10 updates per second limitation go away? I have written an application which uses a single page request to send an XML document consisting of 900 objects to my GAE app. My GAE app then puts this list of 900 items into the datastore in a single entity group. I am happy with the limitation that only 1-10 people can do this to the same entity group per second. What I'm not entirely happy about is that the call fails because it hits the 30 second timeout. I don't want the timeout increased, I want the page request to be processed quicker. If all this activity is happening within the one Java function call, without commit()'s or pm.flush()'s inside the loop, then shouldn't this be regarded as a single update? It may be relevant to explain the data model: the head object has a field:ArrayListStudent Students. It's set up as an owned, bijectional one-to-many relationship, using the annotations described in the GAE documentation. I'm able to process 400 of these objects in 20 seconds...i.e. 20 per second. As mentioned elsewhere, the amount of data involved is small, ~ 300K and there's only one index involved. This is the sort of thing that would be processed instantaneously in other technologies. On Dec 3, 3:29 pm, Dominik Steiner dominik.j.stei...@googlemail.com wrote: Tim, you might find some information related to that in this thread http://groups.google.com/group/google-appengine-java/browse_thread/th... HTH Dominik On 1 Dez., 23:42, Tim Cooper tco...@gmail.com wrote: Can anyone give me a clearer understanding of what an update is, in the statement: Any single entity or entity group can only be updated about five times a second. What level is an update? Is it a single update to a single field? Is it a set of field updates to a single Java object? Is it a single transaction, updating a single entity group? I have written my application expecting a update to mean a set of updates to a single entity group. In one XML request, I am populating my datastore with 900 child entities, all within a single entity group. The total amount of data involved is about 300K. I thought that this size would be quite manageable for AppEngine, and I wanted transactions to be atomic. However, it appears that this means 900 writes and so this call times out. The frustrating thing was that my application worked perfectly in the development environment. I thought that that was a good indication that it would work when deployed. It has been difficult to debug it using frequent deploys. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: can image aspect ratio
I've plan for testing external library, but surely not before next week. You could try JAI, but I don't know if it is supported by GJava (Google Java) -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Any single entity or entity group can only be updated about five times a second.
It means you can do 5 writes per second for 1 entity group. Say you have 1000 entities in 1 entity group, you can update each of them in a transaction, and do this transaction at most 5 times/sec. But most time you may just update 1 or 2 entities, and it's also no more than 5 times/sec. And if the 1000 entities are not in entity groups, you can update each of them for 5 times/sec. So don't use big entity group, break it to make sure no 2 user will write to 1 entity group at the same time. 2009/12/3 Tim Cooper tco...@gmail.com: Thanks, Dominik, but I still need to know more - (I understand that the 1-10 updates per second is only per entity group so scaleability comes with having fine-grained entity groups). * What is an update exactly? Is it a call to pm.makePersistent ()? Is it a call to tx.commit()? Is it a call to pm.flush()? Is it an update of a single field in a single Java object? Is it an invocation of doGet()/doPost()? * Suppose you want to do multiple updates within the one entity group within a single Java function. At what point is the 100ms cost incurred? Which function call blocks for the 100ms? * Is it possible to create 900 child entities in an entity group in a single Java function call, by structuring this creation of 900 objects as a single update? * If I don't use transactions, does this 1-10 updates per second limitation go away? I have written an application which uses a single page request to send an XML document consisting of 900 objects to my GAE app. My GAE app then puts this list of 900 items into the datastore in a single entity group. I am happy with the limitation that only 1-10 people can do this to the same entity group per second. What I'm not entirely happy about is that the call fails because it hits the 30 second timeout. I don't want the timeout increased, I want the page request to be processed quicker. If all this activity is happening within the one Java function call, without commit()'s or pm.flush()'s inside the loop, then shouldn't this be regarded as a single update? It may be relevant to explain the data model: the head object has a field: ArrayListStudent Students. It's set up as an owned, bijectional one-to-many relationship, using the annotations described in the GAE documentation. I'm able to process 400 of these objects in 20 seconds...i.e. 20 per second. As mentioned elsewhere, the amount of data involved is small, ~ 300K and there's only one index involved. This is the sort of thing that would be processed instantaneously in other technologies. On Dec 3, 3:29 pm, Dominik Steiner dominik.j.stei...@googlemail.com wrote: Tim, you might find some information related to that in this thread http://groups.google.com/group/google-appengine-java/browse_thread/th... HTH Dominik On 1 Dez., 23:42, Tim Cooper tco...@gmail.com wrote: Can anyone give me a clearer understanding of what an update is, in the statement: Any single entity or entity group can only be updated about five times a second. What level is an update? Is it a single update to a single field? Is it a set of field updates to a single Java object? Is it a single transaction, updating a single entity group? I have written my application expecting a update to mean a set of updates to a single entity group. In one XML request, I am populating my datastore with 900 child entities, all within a single entity group. The total amount of data involved is about 300K. I thought that this size would be quite manageable for AppEngine, and I wanted transactions to be atomic. However, it appears that this means 900 writes and so this call times out. The frustrating thing was that my application worked perfectly in the development environment. I thought that that was a good indication that it would work when deployed. It has been difficult to debug it using frequent deploys. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[google-appengine] Re: DB Model design, fan-out, lots of writes?
Nice job encoding the necessary info in keys :)
Is there value in putting the MessageRead entity in the same entity
group as the message?
Not sure but don't think you'd need updates to MessageRead to be
transactional with any updates to Message or other MessageRead
entities for the same message?
Keep them in their own entity groups and you won't have a contention
problem. A write behind cache could still be useful for reducing
writes though, if you can handle the risk of the odd dropped update.
On Dec 2, 4:43 am, Julian Namaro namarojul...@gmail.com wrote:
There is a better solution to this problem.
You can use a special entity MessageRead with no property and a
key_name= message_id + recipient_id
indexes = keys_only query on MessageIndexes
for k in indexes:
keys.append( k.parent() )
keys.append( db.Key.from_path('MessageRead', k.parent().id() +
recipient_id) )
messages = db.get(keys)
You can put MessageRead in the same entity group than Message to do
transactional mark as read, but then as Peterk said there might be
contention if the message has thousands of recipients. The other
option is to leave it a root entity and write it in a task queue after
a message is read.
On Nov 6, 1:35 am, Chris cskjoldb...@gmail.com wrote:
Hi All
I'm looking for some input on Db.Model design for the following
scenario:
1) A User can send a message which will to anywhere between 1 to 5000
receipients with 200-2000 receipients being by far the the most
common.
2) Each recipient is expected to receive between 1 and 50 messages a
day.
3) When a receipent has read a message it needs to be flagged as read.
For the distribtion of messages to receipients I took inspiration from
thishttp://www.youtube.com/watch?v=AgaL6NGpkB8
(About 16 minutes into the video) he suggests a model like this:
class Message(db.Model):
sender=db.StringProperty()
body=db.TextProperty()
class MessageIndex(db.Model):
recipient = db.StringListProperty()
with Message and MessageIndex being in the same entity group. In short
the benefit to this design is supposedly that I can do a key only
query on
the MessageIndex for a particular user. From the MessageIndex keys
returned for the recepient I can extract the actual Message entity
keys and fetch those directly by key.
That's all well and good...but then I get to 3)...recipients needing
to flag messages as read. For that I'm contemplating something like
this:
class MessageReadIndex(db.Model):
recipient=db.StringProperty()
month=db.IntegerProperty()
messagesRead = db.StringListProperty(indexed=False)
When a recipient asks for a list of messages it will be sorted by
date, newest messages first, and paged (think gmail).
In the same page request I can query the MessageReadIndex for the user
and month(s) in question. From here I can loop through each message in
memory and
check to see if it has already been read.
When the recipient clicks a message to read it I can also retrieve the
MessageReadIndex entity and append the Message Id to the messagesRead
property and put() the entity.
This last bit is what has be a bit worried. It will be quite a few
writes from every recipient every day...again think gmail ;-) Not
indexing the messagesRead
property should help minimize the number of index entries that need
updating ...but still. Am I being overly paranoid and prematurely
optimizing at an unreasonably
level? Does anybody have any better ideas as for how to handle this?
Thanks in advance for your CPU time!
/Chris
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] urlfetch.fetch stream reading?
Hi, Is there any way on app engine to read a partial HTTP stream, and return (synchronously, or asynchronously) with the results before the server hangs up? Using Google Wave, the BrowserChannelhttp://closure-library.googlecode.com/svn/trunk/closure/goog/docs/class_goog_net_BrowserChannel.htmlserver uses this method to stream wave listings to clients directly. Javascript allows for processing it, so I doubt it would be a problem with app engine? Thank you, -SDr -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Datastore is slow on queries involving many entities, but a smallish dataset
On Dec 2, 3:02 am, Eric Rannaud eric.rann...@gmail.com wrote: On Tue, Dec 1, 2009 at 6:49 PM, Stephen sdea...@gmail.com wrote: I should say that a query with 1 result takes about 30ms. 128*30 = 3840 ms. That's pretty close to what I'm seeing for 128, indicating a linear scaling in the number of entities. Which would be really bad, and unexpected. It's really hard to guess what's going on internally, without any visibility of the architecture. This is a recent change. It used to be that you were charged whatever api_cpu it took to run your query, as measured on the machines. Now there seems to be an algorithm that generates the cost based on your entities and query type, so it will be the same from query to query. This is good because now your costs do not suddenly go up 30% because Google's infrastructure is having a bad day. The incentives used to be all wrong. The change is bad because Google didn't announce it. Are the api_cpu costs exactly the same as before? If not, it is an unannounced price in/decrease. Has anybody looked (publicly) at datastore performance depending on query size, locality, etc? If not, I might try to gather some extensive data, and write it up. It would be nice to work out what the algorithm for api_cpu is... Note: I am *not* using api_cpu time (not available in the Java runtime, as far I know). I am using system wall-clock time. I am doing the Java equivalent of two gettimeofday() and computes the difference. It should be in the logs, which are accessible via the admin console. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] urlfetch.fetch stream reading?
Hi, It's not possible to stream results using urlfetch - requests are accomplished by means of an RPC, which only returns when the complete result is available. -Nick Johnson On Wed, Dec 2, 2009 at 11:28 AM, Silicon Dragon sdr...@gmail.com wrote: Hi, Is there any way on app engine to read a partial HTTP stream, and return (synchronously, or asynchronously) with the results before the server hangs up? Using Google Wave, the BrowserChannelhttp://closure-library.googlecode.com/svn/trunk/closure/goog/docs/class_goog_net_BrowserChannel.htmlserver uses this method to stream wave listings to clients directly. Javascript allows for processing it, so I doubt it would be a problem with app engine? Thank you, -SDr -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Changing project name
I've changed the name of my project in Eclipse. After the change, it seemed that when I changed a module the changes weren't being picked up. So I changed the name of the module itself to see if that would force it to be seen and now I'm getting module not found. Is it not possible to change the project name? To reproduce the problem: submit http://www.speakingofchinese.com/jspsoc Here's the stack trace: 12-02 09:08AM 58.725 /jspsoc 500 185ms 233cpu_ms 0kb Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.3 (KHTML, like Gecko) Chrome/4.0.223.16 Safari/532.3,gzip(gfe),gzip(gfe) 96.57.159.10 - - [02/Dec/2009:09:08:58 -0800] GET /jspsoc HTTP/1.1 500 0 - Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/ 532.3 (KHTML, like Gecko) Chrome/4.0.223.16 Safari/532.3,gzip(gfe),gzip (gfe) www.speakingofchinese.com W 12-02 09:08AM 58.877 EXCEPTION java.lang.ClassNotFoundException: com.eastmountain.soc.LoadSOCReferences at com.google.appengine.runtime.Request.process-9bd3686c1c72283a (Request.java) at java.lang.ClassLoader.loadClass(Unknown Source) at org.mortbay.util.Loader.loadClass(Loader.java:91) at org.mortbay.util.Loader.loadClass(Loader.java:71) at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:73) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java: 233) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:40) at org.mortbay.jetty.servlet.ServletHandler.initialize (ServletHandler.java:612) at org.mortbay.jetty.servlet.Context.startContext(Context.java:139) at org.mortbay.jetty.webapp.WebAppContext.startContext (WebAppContext.java:1218) at org.mortbay.jetty.handler.ContextHandler.doStart (ContextHandler.java:500) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java: 448) at org.mortbay.component.AbstractLifeCycle.start (AbstractLifeCycle.java:40) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.createHandler (AppVersionHandlerMap.java:191) at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.getHandler (AppVersionHandlerMap.java:168) at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest (JettyServletEngineAdapter.java:127) at com.google.apphosting.runtime.JavaRuntime.handleRequest (JavaRuntime.java:239) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5135) at com.google.apphosting.base.RuntimePb$EvaluationRuntime $6.handleBlockingRequest(RuntimePb.java:5133) at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest (BlockingApplicationHandler.java:24) at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java: 363) at com.google.net.rpc.impl.Server$2.run(Server.java:814) at com.google.tracing.LocalTraceSpanRunnable.run (LocalTraceSpanRunnable.java:56) at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan (LocalTraceSpanBuilder.java:516) at com.google.net.rpc.impl.Server.startRpc(Server.java:769) at com.google.net.rpc.impl.Server.processRequest(Server.java:351) at com.google.net.rpc.impl.ServerConnection.messageReceived (ServerConnection.java:437) at com.google.net.rpc.impl.RpcConnection.parseMessages (RpcConnection.java:319) at com.google.net.rpc.impl.RpcConnection.dataReceived (RpcConnection.java:290) at com.google.net.async.Connection.handleReadEvent(Connection.java: 436) at com.google.net.async.EventDispatcher.processNetworkEvents (EventDispatcher.java:762) at com.google.net.async.EventDispatcher.internalLoop (EventDispatcher.java:207) at com.google.net.async.EventDispatcher.loop(EventDispatcher.java: 101) at com.google.net.rpc.RpcService.runUntilServerShutdown (RpcService.java:251) at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run (JavaRuntime.java:396) at java.lang.Thread.run(Unknown Source) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Index stuck in 'Build' phase
I created a new App, this is my 8th app. All previous times, index were built in less than a minute. For the first time, my index is stuck in 'build' phase. Can anyone help. The id is sharedcontacts- westonplayhouse Let me know if you need further information Thanks!! -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Received ClassNotFoundException deserializing a byte array.
Hi! I've deployed a new version of my web application and it doesn't work now because of this exception: Uncaught exception from servlet Received ClassNotFoundException deserializing a byte array. org.datanucleus.exceptions.NucleusException: Received ClassNotFoundException deserializing a byte array. at org.datanucleus.store.appengine.SerializationManager$1.deserialize (SerializationManager.java:146) at org.datanucleus.store.appengine.SerializationManager.deserialize (SerializationManager.java:171) at org.datanucleus.store.appengine.DatastoreFieldManager.deserializeFieldValue (DatastoreFieldManager.java:321) at org.datanucleus.store.appengine.DatastoreFieldManager.fetchObjectField (DatastoreFieldManager.java:297) at org.datanucleus.state.AbstractStateManager.replacingObjectField (AbstractStateManager.java:1197) at bt.web.reminder.database.Event.jdoReplaceField(Event.java) at bt.web.reminder.database.Event.jdoReplaceFields(Event.java) at org.datanucleus.state.JDOStateManagerImpl.replaceFields (JDOStateManagerImpl.java:2772) at org.datanucleus.state.JDOStateManagerImpl.replaceFields (JDOStateManagerImpl.java:2791) at org.datanucleus.store.appengine.DatastorePersistenceHandler.fetchObject (DatastorePersistenceHandler.java:443) at org.datanucleus.state.JDOStateManagerImpl.loadUnloadedFields (JDOStateManagerImpl.java:1560) at org.datanucleus.jdo.state.Hollow.transitionRetrieve(Hollow.java: 161) at org.datanucleus.state.AbstractStateManager.retrieve (AbstractStateManager.java:484) at org.datanucleus.state.JDOStateManagerImpl.preSerialize (JDOStateManagerImpl.java:4455) at bt.web.reminder.database.Event.jdoPreSerialize(Event.java) at bt.web.reminder.database.Event.writeObject(Event.java) at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) at java.io.ObjectOutputStream.writeSerialData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at java.util.ArrayList.writeObject(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) at java.io.ObjectOutputStream.writeSerialData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) at bt.web.reminder.database.Account.writeObject(Account.java) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) at java.io.ObjectOutputStream.writeSerialData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at java.util.HashMap.writeObject(Unknown Source) at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) at java.io.ObjectOutputStream.writeSerialData(Unknown Source) at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) at java.io.ObjectOutputStream.writeObject0(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at com.google.appengine.api.memcache.MemcacheSerialization.serialize (MemcacheSerialization.java:257) at com.google.appengine.api.memcache.MemcacheServiceImpl.put (MemcacheServiceImpl.java:314) at com.google.appengine.api.memcache.stdimpl.GCache.put(GCache.java: 164) Do you know what should I do? What does this message mean: Caused by: java.lang.ClassNotFoundException Unexpected exception from servlet: org.datanucleus.exceptions.NucleusException: Received ClassNotFoundException deserializing a byte
[google-appengine] RequestResponse limit are billable?
Hello. When i try to upload file larger than ~10MB i am getting: Error: Request Entity Too Large Your client issued a request that was too large. This page (http://code.google.com/intl/en/appengine/docs/quotas.html) lists the request and response limit at 10MB. Are quota billable? Can I increase response and request size to 30-50MB? -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] One app for multiple devices?
Hi Catherine, App Engine provides a server-end hosting solution - it can't magic away device issues. You could build your server-end components on App Engine, and use something like phone gap (http://phonegap.com/) on the client side, however. -Nick Johnson On Tue, Dec 1, 2009 at 6:28 PM, cwspence catherine.spe...@intel.com wrote: In Intel IT, we are thinking about our emerging enterprise client strategy and the goal to support a broad range of clients without the overhead of writing separate applications for each device. Yet, on capable devices we would like to retain the local execution model to get the best user experience, taking advantage of local compute power and context-aware capabilities. A browser-based web application/ portal is not sufficient for all applications. If we use Google App Engine to develop client applications does it help our cause? Is there a strategy to make it easy to leverage client capabilities and options across many kinds of clients? Catherine Spence Enterprise Architect, Intel Information Technology -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] RequestResponse limit are billable?
Hi Wega, It's not currently possible to increase the request or response limits - they're fixed at 10MB each. -Nick Johnson On Wed, Dec 2, 2009 at 10:06 AM, Wega realw...@gmail.com wrote: Hello. When i try to upload file larger than ~10MB i am getting: Error: Request Entity Too Large Your client issued a request that was too large. This page (http://code.google.com/intl/en/appengine/docs/quotas.html) lists the request and response limit at 10MB. Are quota billable? Can I increase response and request size to 30-50MB? -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Index stuck in 'Build' phase
Hi, How long has your index been building? It's not unusual for index builds to take up to 24 hours. -Nick Johnson On Wed, Dec 2, 2009 at 6:02 PM, Apps Guru mbhargava...@gmail.com wrote: I created a new App, this is my 8th app. All previous times, index were built in less than a minute. For the first time, my index is stuck in 'build' phase. Can anyone help. The id is sharedcontacts- westonplayhouse Let me know if you need further information Thanks!! -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Querying datastore objects by last date/time accessed?
Hi, The method you describe (a datetime field that you update on each access) is the most efficient way of doing this. -Nick Johnson On Tue, Dec 1, 2009 at 7:22 PM, mscwd01 mscw...@gmail.com wrote: Hey, I wish to retrieve a single datastore object such that the object which has NOT been retrieved for the longest amount of time is returned. I.e. If object A was last retrieved 5 days ago, object B 2 days ago and object C 12 days ago the order of retrieval would be: Object B (first db call) - Object A (second db call), Object C (third db call) I could simply assign a datetime field to each object and update this time during each retrieval, then organise all the objects by this field upon each database query. However, if I were to have tens of thousands of objects would this be an efficient way of achieving this? I'd be interested to know if there may be a better way of doing it. Many thanks -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Can a bank system be transactional and low contentious?
Hi, I recently wrote an article about the bank-transfer use case in App Engine, and how to do it transactionally: http://blog.notdot.net/2009/9/Distributed-Transactions-on-App-Engine -Nick Johnson On Mon, Nov 30, 2009 at 7:04 PM, Jeff Schnitzer j...@infohazard.org wrote: I'm pretty sure the answer to your question is banking is not an appropriate problem space for Google App Engine. Sure, you could eventually make it work by writing your own in-app 2pc layer, but why? There are other platforms that make this easier. Consider also that there is no data robustness guarantee for GAE. Your data could go away without recourse. Use the right tool for the right job. If you need fine transaction control across large datasets, GAE is probably not for you. Most problem domains don't require the level of transactional integrity that banking demands. Jeff On Thu, Nov 26, 2009 at 7:40 PM, 风笑雪 kea...@gmail.com wrote: I just watched some Google I/O videos about GAE yesterday, and I have 2 questions about transaction. Assume I need to build a bank system, two clients (Alice and Bob) want to transfer one's money to the other. So when I create Alice and Bob, I must put them in the same entity group: alice = User(name='Alice') bob = User(parent=alice, name='Bob') If I have millions of clients, and they all have a chance to make a deal with each other, then they should be all in the same entity group: adam = User(name='Adam') alice = User(parent=adam,name='Alice') bob = User(parent=adam, name='Bob') chris = User(parent=adam, name='Chris') ... As the presentation says, writes to the entity group is serialized, and a write operation takes at least 10ms, a transaction needs at least 1 reed and 3 writes, so I can't do more than 33 deals/sec, is it scalable enough? And having such a big entity group may easily cause high contention, maybe most of the transactions will fail. I wonder how could I break the huge group into small entity groups? The second question is about the root entity. The presentation says, root keeps a timestamp for the entire group. But document also says, we can delete an ancestor, or just create a Key for the ancestor that not exist to specify the parent of the new entity. So if the root has been deleted, or not exist at all, can this entity group still transactional? -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Index building taking over 12h
Hi Eric, Indexes are built in a queue across all apps, so the index build time has more to do with what's in the queue ahead of you than how large your data is. 12 hour build times are not uncommon. -Nick Johnson On Mon, Nov 30, 2009 at 6:41 PM, Eric Rannaud eric.rann...@gmail.comwrote: I have an index that has been building for over 12h, on less than 200MB of data, with 500,000 entities. (App: 911pagers) Is there something I should do? Thanks. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Jaiku code and exploding indexes
Hi, I've studied the Jaiku code ( http://code.google.com/p/jaikuengine/ ) and noticed a piece of it that can cause an exploding index: - kind: InboxEntry properties: - name: inbox - name: created_at direction: desc 'inbox' is a StringListProperty and the list is very large for real cases (in fact, the number of followers of a user of the service). How can I know if an index will be too large? What are the reference values? As I don't have much knowledge of GAE, I want to know if I'm right. Thanks! -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Index building taking over 12h
Hi Nick, What can be done to speed this up? Regards, jpmorganuk -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] NullPointerException
Have you looked at the logs in the admin console? If you are getting an exception, the stack trace should be there. On Tue, Dec 1, 2009 at 2:51 AM, HKHAIRANE hichamkhair...@gmail.com wrote: Hey everybody i have a nullpointerexception from remote server, no log , no trace does any body know how to find stacktrace thanks in advance -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Re: gql not giving full result set
Dinesh, I see the inconsistency. How long have you been writing to this dataset? My suspicion is that the indexes may have been updated incorrectly in a previous release due to a bug that we have since addressed. Unfortunately, the bug fix may not have retroactively addressed the incorrectly updated indexes. How large is the dataset? For small datasets, bulk exporting and importing will address the issue, but for large datasets, we'll have to look to an alternative solution. On Tue, Dec 1, 2009 at 3:40 AM, Dinesh Varadharajan dinesh.varadhara...@orangescape.com wrote: Ikai, Unfortunately we don't have dummy data to showcase this. I have a reproducible case in production. The app id is os-dev.appspot.com. if you execute the query SELECT * FROM PrimaryData where ApplicationId = 'Application_1652c875_be0f_11de_b4a5_a3c424aa5af6' and SheetMetadataId = 'Sheet001' and Deleted=False it returns 8 records. and if you execute SELECT * FROM PrimaryData where ApplicationId = 'Application_1652c875_be0f_11de_b4a5_a3c424aa5af6' and SheetMetadataId = 'Sheet001' it should at least return 8 records(I am removing a condition). but it returns only 4 records. Please let me know if you want to be added as developer to os-dev to be able to access the datastore. Dinesh On Dec 1, 12:27 am, Ikai L (Google) ika...@google.com wrote: Prashant, do you have sample data you can provide? It's even better if it isn't real data. On Sun, Nov 29, 2009 at 3:19 AM, Prashant antsh...@gmail.com wrote: what about this - I had a data store entity with known id, and JDOQL simply failed to retrieve it by id throwing JDOObjectNotFoundException. I think there is some major issue with datastore/indexes. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appengine@googlegroups.com . To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com google-appengine%2bunsubscr...@googlegroups.comgoogle-appengine%252bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Empty value of a Key field
Do you have a reproducible test case or some code you can post?
On Tue, Dec 1, 2009 at 5:02 AM, Henry enricrequ...@gmail.com wrote:
Hi Guys,
Im new at Google App Engine, I've the follow problem:
When Im recovering a persistent class Announcer, it has one field
(country) with NO VALUE...I thought that must to be for a bad mapping
with the annotations creating the proper class, but I don't know how
to do to get again the Key that I've stored. When Im storing the Key
(country), it has value, I can see it in the Google App Engine
DataViewer.
This is my class with the annotations:
@PersistenceCapable(identityType = IdentityType.APPLICATION)
public class Announcer {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
@Persistent
private String emailAddress;
@Persistent
private String password;
@Persistent
private String firstName;
@Persistent
private String lastName;
@Persistent
private Key country;
Anyone could help me?
Im using Java and JDO.
Thanks for advance.
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com
.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Migrating an existing PHP/MySQL web application to GAE
It's possible to migrate from a relational environment to Google App Engine, however, this is not something that will simply work out of the box. That is, you will not be able to push the application an expect it to work. You have two technical barriers: App Engine does not natively support your language, and App Engine does not natively support your database layer: App Engine can run PHP with the help of Quercus: http://www.webdigi.co.uk/blog/2009/run-php-on-the-google-app-engine/ Your mileage may vary, as your application may make calls that are not available. App Engine's datastore is a non-relational datastore built on top of Google's BigTable. You'd need to rethink your schema and formulate a data migration plan, then consider how to change your code to deal with the new data store. It's certainly not impossible, and there have been App Engine users who have successfully migrated their applications with great success. The first step is to learn about App Engine by building an application and understanding the platform. On Tue, Dec 1, 2009 at 3:16 AM, Pawan Kumar pawankumar...@gmail.com wrote: Hi Gurus, I have a beginner's question which might have been answered earlier but I could not find it. I have a PHP/MySQL based web application running on my premises and I want to migrate it to Google Apps. Over the period, it has built into a good enough relational database schema and historic data. The question is is it possible to use this existing data schema and the data by uploading it on google apps environment? If yes then how and a sample would be appreciated. Regards, Pawan -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] How can I get the datetime difference by GQL ?
No, you'll have to diff the dates at your application layer. The App Engine datastore is not a relational database and does not define procedures. On Mon, Nov 30, 2009 at 7:48 PM, 敏怀 黃 manwaa...@gmail.com wrote: In SQL,I can use function datediff to achieve that,but how in GQL ?Is there any function like datediff in GQL ? Thanks and sorry for poor English :) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Multiple datastores or share datastore in one app
Creating a database per team is a very heavyweight way to address the problem of data segregation. This is unnecessary and in general, not a recommended best practice, as you would provide data isolation at the application layer. The intuitive solution here is to create an entity group for a league or team (depending on your transactional needs) and place child entities in that group. On Tue, Dec 1, 2009 at 10:40 AM, andreas_b andreas.borg...@gmail.comwrote: Hi all. I'm working on a GWT/GAE project where the idea is to create a portal for sport teams. Each sport team can sign up to get an account where they can register players, keep track of leagues, matches, statistics and so on. Each team should also be able to use their own domain, which automatically should load the site with their configuration when entered (basically just load the gwt-app with some url-parameter that is forwarded to server-side). So, coming from a normal SQL-environment, it seems to me that each team that signs up should get their own private database for all their data. As I understand it, this is not possible with GAE datastore? There is a one-to-one mapping between an application and a datastore? If this is the case, then what is the best way forward? I guess each entity could have a team ID, but it really doesn't seem like a good idea. There should be some kind of isolation between the different teams' data. Registering a new GAE app for each team is not an option either since we expect at least hundreds of teams. So, is there some way to isolate entities from each other within a GAE datastore? Also, would it be feasible from a performance point of view to do this? Or is simply GAE not the right way to go for this kind of web offering? Thanks in advance. BR, Andreas -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Request was aborted after waiting too long...
What are you doing on application startup that may be expensive? On Tue, Dec 1, 2009 at 4:04 PM, Mark markrobertdav...@gmail.com wrote: Hi, Could someone please help me? I have a relatively simple app - but I am seeing that around 5% of the time, my app fails with error 'Request was aborted after waiting too long to attempt to service your request. Most likely, this indicates that you have reached your simultaneous active request limit. This is almost always due to excessively high latency in your app. ' This only happens if the application has not been in use for a few minutes. I can refresh the web page, and my app always works immediately. So I guess the problem is happening when GAE cycles my app out and then tries to wake it back up. Does anyone have any tips to get around this error? Is it caused because my app is somehow too slow to initialize? My appid is mayihelpyoucam cheers Mark -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Re: Continuing HTTPErrr 302 when using remote_api after a 200 transactions - need to re-use connection handles
Tim, great find. What do you mean re-use connections? If you let me know, I'll update the docs and open an issue to provide a better error message. On Tue, Dec 1, 2009 at 8:56 PM, Tim Hoffman zutes...@gmail.com wrote: Ok Got the the bottom of it all. You need to re-use connections. If you make too many authenticated connections then googles higher up infrastructure shuts you down for about 10 min. It does highlight some problems in the remote_api code as the error messages passed back are particularly informative unless you really dig. but at least I understand where the problem is. T On Dec 2, 11:31 am, Tim Hoffman zutes...@gmail.com wrote: OK Started debugging inside the apiproxy_rpc.py(113)CheckSuccess() and what I believe is happening is correct. the rpc call MaekSyncCall is getting a redirect to a request to login apiproxy_rpc.py(113)CheckSuccess() The exception is a HTTPErrror which is a redirect (302) to 'https://www.google.com/a/polytechnic.wa.edu.au/ServiceLogin? service=ahpassive=truecontinue=http://psc-prod1.appspot.com/_ah/login %3Fcon stuff deleted', Obviously requesting me to log in again. So somewhere I am running afoul of higher layers in google that watch what is going on. I am going to need some help from google engineers to get to the bottom of this one. Rgds Tim Hoffman On Dec 2, 11:04 am, Tim Hoffman zutes...@gmail.com wrote: Something I have observerd and can now prove repeatably Once I get the error 302 inside the remote_api call. It takes somewhere between 2 and 10 mins before I can resubmit the transaction. During that that time, if I try the same call from another process (on the same box with the same auth details) the call still gets the error until such time as something in google lets it go. It really is looking like I am being clobbered by some google watch dog. T On Dec 2, 9:58 am, Tim Hoffman zutes...@gmail.com wrote: I am still getting this problem. One of the things I have noticed is the errors (302) are being propogated by google infrastructure and not recorded any way in the apps logs. My gut feel is that some other google infrastructure thinks I am doing something I shouldn't requires me to re-authenticate but the remote_api proxies can't deal with a 302 inside a Namerror in CheckSuccess see stack below. Obviously what I am doing is different to the bulkloader client. Anyone got any suggestions on how I might go about getting to the bottom of this. T 2009-12-02T01:55:49 INFO root Exception sending Rollback: Traceback (most recent call last): File /opt/ktstudio/zope/instances/prod/swantafe.buildout/ google_appengine/google/appengine/api/datastore.py, line 1989, in RunInTransactionCustomRetries tx.handle, resp) File /opt/ktstudio/zope/instances/prod/swantafe.buildout/ google_appengine/google/appengine/api/apiproxy_stub_map.py, line 72, in MakeSyncCall apiproxy.MakeSyncCall(service, call, request, response) File /opt/ktstudio/zope/instances/prod/swantafe.buildout/ google_appengine/google/appengine/api/apiproxy_stub_map.py, line 266, in MakeSyncCall rpc.CheckSuccess() File /opt/ktstudio/zope/instances/prod/swantafe.buildout/ google_appengine/google/appengine/api/apiproxy_rpc.py, line 111, in CheckSuccess raise self.exception NameError: global name 'txdata' is not defined -- 2009-12-02T01:55:49 ERROR Zope.SiteErrorLoghttp:// 10.8.0.134:49081/swan/portal_skins/custom/send_uos Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module Shared.DC.Scripts.Bindings, line 313, in __call__ Module Shared.DC.Scripts.Bindings, line 350, in _bindAndExec Module Products.PythonScripts.PythonScript, line 328, in _exec Module None, line 25, in send_uos - PythonScript at /swan/portal_skins/custom/send_uos - Line 25 Module None, line 11, in push - PythonScript at /swan/portal_skins/custom/send_uos - Line 11 Module Products.PlonePSC.tools.psc_manager, line 639, in push_to_appengine Module google.appengine.ext.db, line 1064, in get_or_insert Module google.appengine.api.datastore, line 1884, in RunInTransaction Module google.appengine.api.datastore, line 1982, in RunInTransactionCustomRetries Module google.appengine.ext.db, line 1059, in txn Module google.appengine.ext.db, line 981, in get_by_key_name Module google.appengine.ext.db, line 1180, in get Module google.appengine.api.datastore, line 234, in Get Module google.appengine.api.apiproxy_stub_map, line 72, in MakeSyncCall Module google.appengine.api.apiproxy_stub_map, line
Re: [google-appengine] Re: Datastore is slow on queries involving many entities, but a smallish dataset
Crossposting to App Engine Java group: the original thread is at http://groups.google.com/group/google-appengine/browse_thread/thread/22018ef2e132ac13/54485b787d5a80b5 In a few words: I have a problem with reasonable queries taking a very long time (several seconds). These queries return 128 entities, from a total of 500,000 entities of that type in the datastore. Each entity is about 400 bytes. On Tue, Dec 1, 2009 at 6:49 PM, Stephen sdea...@gmail.com wrote: On Dec 1, 9:12 pm, Eric Rannaud eric.rann...@gmail.com wrote: On Tue, Dec 1, 2009 at 11:02 AM, Stephen sdea...@gmail.com wrote: On Dec 1, 9:55 am, Eric Rannaud eric.rann...@gmail.com wrote: SELECT * FROM MessageS where id = 0 id 128 order by id Calendar c = Calendar.getInstance(); long t0 = c.getTimeInMillis(); qmsgr = (ListMessageS) qmsg.execute(lo, hi); System.err.println(getCMIdRange:qmsg: + (c.getTimeInMillis() - t0)); Are you fetching all 128 entities in one batch? If you don't, the result is fetched in batches of 20, incurring extra disk reads and rpc overhead. Not sure how you do that with the Java API, but with python you pass '128' to the .fetch() method of a query object. As far as I can tell, there is no such equivalent in the Java API. The Something like this..? DatastoreService datastore = DatastoreServiceFactory.getDatastoreService(); Query query = new Query(MessageS); query.addFilter(id, Query.FilterOperator.GREATER_THAN_OR_EQUAL, 0); ListEntity messages = datastore.prepare(query) .asList(FetchOptions.Builder.withLimit(128)); You might also have to tweak chunkSize and/or prefetchSize, or ask on the Java list. I did some tests with the code you proposed. The performance remains essentially the same as with the JDO API, i.e. between 1 and 4 second per execute/prepare statement (2.5s on average). DatastoreService datastore = DatastoreServiceFactory.getDatastoreService(); Query query = new Query(MessageS); query.addFilter(id, Query.FilterOperator.GREATER_THAN_OR_EQUAL, lo); query.addFilter(id, Query.FilterOperator.LESS_THAN, hi); long t0 = Calendar.getInstance().getTimeInMillis(); ListEntity r = datastore.prepare(query) .asList(FetchOptions.Builder .withLimit(128) .prefetchSize(128) .chunkSize(128)); System.err.println(LOW:getCMIdRange:qmsg: + (Calendar.getInstance().getTimeInMillis() - t0) + + r.size()); Thanks. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Re: Waiting already for 6 hours for 300 records to index
It's more than an hr. and index still building just for 2 record. why indexing has become dead slow? -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Querying datastore objects by last date/time accessed?
Thanks for confirming this Nick On Dec 2, 5:48 pm, Nick Johnson (Google) nick.john...@google.com wrote: Hi, The method you describe (a datetime field that you update on each access) is the most efficient way of doing this. -Nick Johnson On Tue, Dec 1, 2009 at 7:22 PM, mscwd01 mscw...@gmail.com wrote: Hey, I wish to retrieve a single datastore object such that the object which has NOT been retrieved for the longest amount of time is returned. I.e. If object A was last retrieved 5 days ago, object B 2 days ago and object C 12 days ago the order of retrieval would be: Object B (first db call) - Object A (second db call), Object C (third db call) I could simply assign a datetime field to each object and update this time during each retrieval, then organise all the objects by this field upon each database query. However, if I were to have tens of thousands of objects would this be an efficient way of achieving this? I'd be interested to know if there may be a better way of doing it. Many thanks -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Nick Johnson, Developer Programs Engineer, App Engine Google Ireland Ltd. :: Registered in Dublin, Ireland, Registration Number: 368047 -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Request was aborted after waiting too long...
I am using BlazeDS - a remoting service for Flex. I guess it takes a while to initialize - although not sure why it is slow to init only a small %age of the time - you would think it'd either always fail or always succeed. On Dec 2, 11:33 am, Ikai L (Google) ika...@google.com wrote: What are you doing on application startup that may be expensive? On Tue, Dec 1, 2009 at 4:04 PM, Mark markrobertdav...@gmail.com wrote: Hi, Could someone please help me? I have a relatively simple app - but I am seeing that around 5% of the time, my app fails with error 'Request was aborted after waiting too long to attempt to service your request. Most likely, this indicates that you have reached your simultaneous active request limit. This is almost always due to excessively high latency in your app. ' This only happens if the application has not been in use for a few minutes. I can refresh the web page, and my app always works immediately. So I guess the problem is happening when GAE cycles my app out and then tries to wake it back up. Does anyone have any tips to get around this error? Is it caused because my app is somehow too slow to initialize? My appid is mayihelpyoucam cheers Mark -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Stuck Index
It's more than an hr. and index still building just for 2 record, I guess it is stuck. appid - gaewcms ; index - _Content_ (Uri asc, Weight asc, Added desc) -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Weird memcached issue
I'm seeing a weird issue with memcached right now (app: sovpad)
About 1/5 of memcache requests goes to a different memcached server,
so I'm getting problems with consistency (probably the same key maps
to two different values?).
When I'm requesting stats, I'm seeing two distinct stats:
That's old server:
{'hits': 15948553L, 'items': 297010L, 'bytes': 230207529L,
'oldest_item_age': 131185L, 'misses': 2694500L, 'byte_hits':
20397739314L}
That's a new one in about 1/5 of requests:
{'hits': 12005L, 'items': 13699L, 'bytes': 12456724L,
'oldest_item_age': 571L, 'misses': 18283L, 'byte_hits': 11945345L}
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Weird memcached issue
Hi Michael,
When did this start happening? We're currently doing a phased rollout to
support the upcoming SDK release, so there may be some inconsistent behavior
while this is happening to your instance. Can you do us a favor and track
this behavior? It should not last long.
On Wed, Dec 2, 2009 at 1:08 PM, Michael m...@mzlab.net wrote:
I'm seeing a weird issue with memcached right now (app: sovpad)
About 1/5 of memcache requests goes to a different memcached server,
so I'm getting problems with consistency (probably the same key maps
to two different values?).
When I'm requesting stats, I'm seeing two distinct stats:
That's old server:
{'hits': 15948553L, 'items': 297010L, 'bytes': 230207529L,
'oldest_item_age': 131185L, 'misses': 2694500L, 'byte_hits':
20397739314L}
That's a new one in about 1/5 of requests:
{'hits': 12005L, 'items': 13699L, 'bytes': 12456724L,
'oldest_item_age': 571L, 'misses': 18283L, 'byte_hits': 11945345L}
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com
.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Weird memcached issue
*Please* tell me that you are not going to repeat past mistakes and release the
SDK into the servers *before* releasing it in the development platform.
You need to give the update to developers first, so we can check for you
breaking things that you did not anticipate.
-Joshua
On Dec 2, 2009, at 4:17 PM, Ikai L (Google) wrote:
Hi Michael,
When did this start happening? We're currently doing a phased rollout to
support the upcoming SDK release, so there may be some inconsistent behavior
while this is happening to your instance. Can you do us a favor and track
this behavior? It should not last long.
On Wed, Dec 2, 2009 at 1:08 PM, Michael m...@mzlab.net wrote:
I'm seeing a weird issue with memcached right now (app: sovpad)
About 1/5 of memcache requests goes to a different memcached server,
so I'm getting problems with consistency (probably the same key maps
to two different values?).
When I'm requesting stats, I'm seeing two distinct stats:
That's old server:
{'hits': 15948553L, 'items': 297010L, 'bytes': 230207529L,
'oldest_item_age': 131185L, 'misses': 2694500L, 'byte_hits':
20397739314L}
That's a new one in about 1/5 of requests:
{'hits': 12005L, 'items': 13699L, 'bytes': 12456724L,
'oldest_item_age': 571L, 'misses': 18283L, 'byte_hits': 11945345L}
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Weird memcached issue
At the time of the first post it was going for about 10 minutes.
It's still happening.
On Dec 2, 11:17 pm, Ikai L (Google) ika...@google.com wrote:
Hi Michael,
When did this start happening? We're currently doing a phased rollout to
support the upcoming SDK release, so there may be some inconsistent behavior
while this is happening to your instance. Can you do us a favor and track
this behavior? It should not last long.
On Wed, Dec 2, 2009 at 1:08 PM, Michael m...@mzlab.net wrote:
I'm seeing a weird issue with memcached right now (app: sovpad)
About 1/5 of memcache requests goes to a different memcached server,
so I'm getting problems with consistency (probably the same key maps
to two different values?).
When I'm requesting stats, I'm seeing two distinct stats:
That's old server:
{'hits': 15948553L, 'items': 297010L, 'bytes': 230207529L,
'oldest_item_age': 131185L, 'misses': 2694500L, 'byte_hits':
20397739314L}
That's a new one in about 1/5 of requests:
{'hits': 12005L, 'items': 13699L, 'bytes': 12456724L,
'oldest_item_age': 571L, 'misses': 18283L, 'byte_hits': 11945345L}
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com
.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Weird memcached issue
The problem with consistency is: the same key maps to the different values (when I'm hitting another memcached server), so randomly I'm getting old value from memcache and it produces weird effects on my application (like new message appearing, though they were marked as read). Is it going to be fixed soon? On Dec 2, 11:33 pm, Michael m...@mzlab.net wrote: At the time of the first post it was going for about 10 minutes. It's still happening. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Interim GAE failures happening right now
Hi folks, The app-id snsanalytics is running this interim problems at this moment. It seems a file node failure inside GAE? Alan File /base/data/home/apps/snsanalytics/1.338147245967300836/common/zip-packages/django-1.1.zip/django/template/loader.py, line 108, in render_to_string File /base/data/home/apps/snsanalytics/1.338147245967300836/__init__.py, line 178, in render File /base/data/home/apps/snsanalytics/1.338147245967300836/__init__.py, line 779, in render File /base/data/home/apps/snsanalytics/1.338147245967300836/__init__.py, line 792, in render_node File /base/data/home/apps/snsanalytics/1.338147245967300836/common/zip-packages/django-1.1.zip/django/template/loader_tags.py, line 71, in render File /base/data/home/apps/snsanalytics/1.338147245967300836/common/zip-packages/django-1.1.zip/django/template/loader_tags.py, line 64, in get_parent File /base/data/home/apps/snsanalytics/1.338147245967300836/common/zip-packages/django-1.1.zip/django/template/loader.py, line 70, in find_template_source File /base/data/home/apps/snsanalytics/1.338147245967300836/common/zip-packages/django-1.1.zip/django/template/loaders/filesystem.py, line 40, in load_template_source class 'django.template.TemplateDoesNotExist': Tried [u'/base/data/home/apps/snsanalytics/1.338147245967300836/templates/layout/content.html', u'/base/data/home/apps/snsanalytics/1.338147245967300836/common/templates/layout/content.html'] -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Iterator GWT
Hi,
I'm using an Iterator to retrieve lot of database objects.
Thoses objects will be display on web application. I'm using GWT and
all object that I use in client part, must be defined in this part.
The problem is when DAO method retrieve objects as Iterator, I must
transform each entity object into a client object.
It can be done by using a list as:
ListEntity lObject = query.execute();
ListGWTObject lGwtObjects = new ArrayListGWTObject();
for(Entity lEntity: lObject) {
lGwtObjects.add(transform(lEntity));
}
return lGwtObjects
For more scalability, I want to use an Iterator.
How can I transform my Entity object in GWT object when I iterate over
the given iterator in my GWT panel?
Michael
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] cannot import name signals
I'm getting lots of these suddenly. I had them a few months ago too, but didn't see them in a while. I use the appengine django 1.0. Anyone else having this too? Koen -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Is maintenance today?
Is there an update on this topic posted somewhere by Google? Has the maintenance been rescheduled or canceled? Thanks, Scott -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Weird memcached issue
Joshua,
See:
http://groups.google.com/group/google-appengine-python/browse_thread/thread/6f251a0efacc1f62
and
http://groups.google.com/group/google-appengine-java/browse_thread/thread/fe334c9e461026fa
On 02/12/2009, Joshua Smith joshuaesm...@charter.net wrote:
*Please* tell me that you are not going to repeat past mistakes and release
the SDK into the servers *before* releasing it in the development platform.
You need to give the update to developers first, so we can check for you
breaking things that you did not anticipate.
-Joshua
On Dec 2, 2009, at 4:17 PM, Ikai L (Google) wrote:
Hi Michael,
When did this start happening? We're currently doing a phased rollout to
support the upcoming SDK release, so there may be some inconsistent behavior
while this is happening to your instance. Can you do us a favor and track
this behavior? It should not last long.
On Wed, Dec 2, 2009 at 1:08 PM, Michael m...@mzlab.net wrote:
I'm seeing a weird issue with memcached right now (app: sovpad)
About 1/5 of memcache requests goes to a different memcached server,
so I'm getting problems with consistency (probably the same key maps
to two different values?).
When I'm requesting stats, I'm seeing two distinct stats:
That's old server:
{'hits': 15948553L, 'items': 297010L, 'bytes': 230207529L,
'oldest_item_age': 131185L, 'misses': 2694500L, 'byte_hits':
20397739314L}
That's a new one in about 1/5 of requests:
{'hits': 12005L, 'items': 13699L, 'bytes': 12456724L,
'oldest_item_age': 571L, 'misses': 18283L, 'byte_hits': 11945345L}
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to
google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
-- You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to
google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
-- You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to
google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Barry
- www.nearby.org.uk - www.geograph.org.uk -
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Re: Is maintenance today?
No, the maintenance didn't take place yesterday. Apologies for not mentioning it. As far as I know, it has not been rescheduled. I'll post an update if it will be. On Wed, Dec 2, 2009 at 3:13 PM, Scott lea...@gmail.com wrote: Is there an update on this topic posted somewhere by Google? Has the maintenance been rescheduled or canceled? Thanks, Scott -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Weird memcached issue
Ah. Why are they posting that down in the python/java specific groups?
That seems like a strange place to make such an important announcement.
-Joshua
On Dec 2, 2009, at 6:17 PM, Barry Hunter wrote:
Joshua,
See:
http://groups.google.com/group/google-appengine-python/browse_thread/thread/6f251a0efacc1f62
and
http://groups.google.com/group/google-appengine-java/browse_thread/thread/fe334c9e461026fa
On 02/12/2009, Joshua Smith joshuaesm...@charter.net wrote:
*Please* tell me that you are not going to repeat past mistakes and release
the SDK into the servers *before* releasing it in the development platform.
You need to give the update to developers first, so we can check for you
breaking things that you did not anticipate.
-Joshua
On Dec 2, 2009, at 4:17 PM, Ikai L (Google) wrote:
Hi Michael,
When did this start happening? We're currently doing a phased rollout to
support the upcoming SDK release, so there may be some inconsistent behavior
while this is happening to your instance. Can you do us a favor and track
this behavior? It should not last long.
On Wed, Dec 2, 2009 at 1:08 PM, Michael m...@mzlab.net wrote:
I'm seeing a weird issue with memcached right now (app: sovpad)
About 1/5 of memcache requests goes to a different memcached server,
so I'm getting problems with consistency (probably the same key maps
to two different values?).
When I'm requesting stats, I'm seeing two distinct stats:
That's old server:
{'hits': 15948553L, 'items': 297010L, 'bytes': 230207529L,
'oldest_item_age': 131185L, 'misses': 2694500L, 'byte_hits':
20397739314L}
That's a new one in about 1/5 of requests:
{'hits': 12005L, 'items': 13699L, 'bytes': 12456724L,
'oldest_item_age': 571L, 'misses': 18283L, 'byte_hits': 11945345L}
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to
google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Ikai Lan
Developer Programs Engineer, Google App Engine
-- You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to
google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
-- You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to
google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
Barry
- www.nearby.org.uk - www.geograph.org.uk -
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Has anyone done a source code control system hosted on App Engine?
I'd like to host Hg or something someplace with better uptime than my home server. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Weird memcached issue
Hi, This happens for me too. I can't store any data into memcache. Also, I can't get any results with memcache.get_stats(). The function returns None. On Dec 2, 1:45 pm, Michael m...@mzlab.net wrote: The problem with consistency is: the same key maps to the different values (when I'm hitting another memcached server), so randomly I'm getting old value from memcache and it produces weird effects on my application (like new message appearing, though they were marked as read). Is it going to be fixed soon? On Dec 2, 11:33 pm, Michael m...@mzlab.net wrote: At the time of the first post it was going for about 10 minutes. It's still happening. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Migrating an existing PHP/MySQL web application to GAE
I'm certainly not a guru, but I would not start out by attempting to migrate any non-trivial application to GAE. From what I've seen so far, in addition to requiring major rewrites due to a fundamentally different db architecture, the platform is not stable or mature. They are calling it a preview for a reason. Start small with a simple web app or service and see how it works for you first. By doing this you'll get a much better idea of what is going to be involved. On Dec 1, 6:16 am, Pawan Kumar pawankumar...@gmail.com wrote: Hi Gurus, I have a beginner's question which might have been answered earlier but I could not find it. I have a PHP/MySQL based web application running on my premises and I want to migrate it to Google Apps. Over the period, it has built into a good enough relational database schema and historic data. The question is is it possible to use this existing data schema and the data by uploading it on google apps environment? If yes then how and a sample would be appreciated. Regards, Pawan -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Re: Weird memcached issue
Is this issue still occurring for you? If so, let me know your application ID. Michael, let me know if this is causing you problems in production. I can attempt to migrate your application to a different pool, but this is not something I'd advise if you're running in production and things are working fine. On Wed, Dec 2, 2009 at 4:26 PM, naan kaz...@gmail.com wrote: Hi, This happens for me too. I can't store any data into memcache. Also, I can't get any results with memcache.get_stats(). The function returns None. On Dec 2, 1:45 pm, Michael m...@mzlab.net wrote: The problem with consistency is: the same key maps to the different values (when I'm hitting another memcached server), so randomly I'm getting old value from memcache and it produces weird effects on my application (like new message appearing, though they were marked as read). Is it going to be fixed soon? On Dec 2, 11:33 pm, Michael m...@mzlab.net wrote: At the time of the first post it was going for about 10 minutes. It's still happening. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
Re: [google-appengine] Re: Migrating an existing PHP/MySQL web application to GAE
On Thu, Dec 3, 2009 at 12:24 AM, marksea mark...@gmail.com wrote:
I'm certainly not a guru, but I would not start out by attempting to
migrate any non-trivial application to GAE. From what I've seen so
far, in addition to requiring major rewrites due to a fundamentally
different db architecture, the platform is not stable or mature. They
are calling it a preview for a reason. Start small with a simple
web app or service and see how it works for you first. By doing this
you'll get a much better idea of what is going to be involved.
On Dec 1, 6:16 am, Pawan Kumar pawankumar...@gmail.com wrote:
Hi Gurus,
I have a beginner's question which might have been answered earlier
but I could not find it.
I have a PHP/MySQL based web application running on my premises and I
want to migrate it to Google Apps.
Over the period, it has built into a good enough relational database
schema and historic data.
The question is is it possible to use this existing data schema and
the data by uploading it on google apps environment? If yes then how
and a sample would be appreciated.
Regards,
Pawan
http://code.google.com/p/approcket/ I use replicates AppEngine
datastore to a MySQL database and vice versa. Here gae is 1/10 code
compared to previous php/mysql nearly same functions
({www(php/mysql/java),web(gae),montao.com.br}) differ and takes long
time not very difficult we can smoothly transit eg. md5 a(old defunct)
nd sha1 (new gae) bothways. Good thing sync both for exitplan just
sync persistencelayers cron, batch, task or realtime.
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appeng...@googlegroups.com.
To unsubscribe from this group, send email to
google-appengine+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: DB Model design, fan-out, lots of writes?
Is there value in putting the MessageRead entity in the same entity group as the message? Just to do transactional mark as read. I agree in most cases it's not worth the trouble. -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Google Dashboard System Status page link ---server error 500
says report,, gives server 500 error at system status page -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
[google-appengine] Re: Multiple datastores or share datastore in one app
Thanks both of you! Very helpful answers. Best Regards, Andreas On Dec 2, 8:24 pm, Ikai L (Google) ika...@google.com wrote: Creating a database per team is a very heavyweight way to address the problem of data segregation. This is unnecessary and in general, not a recommended best practice, as you would provide data isolation at the application layer. The intuitive solution here is to create an entity group for a league or team (depending on your transactional needs) and place child entities in that group. On Tue, Dec 1, 2009 at 10:40 AM, andreas_b andreas.borg...@gmail.comwrote: Hi all. I'm working on a GWT/GAE project where the idea is to create a portal for sport teams. Each sport team can sign up to get an account where they can register players, keep track of leagues, matches, statistics and so on. Each team should also be able to use their own domain, which automatically should load the site with their configuration when entered (basically just load the gwt-app with some url-parameter that is forwarded to server-side). So, coming from a normal SQL-environment, it seems to me that each team that signs up should get their own private database for all their data. As I understand it, this is not possible with GAE datastore? There is a one-to-one mapping between an application and a datastore? If this is the case, then what is the best way forward? I guess each entity could have a team ID, but it really doesn't seem like a good idea. There should be some kind of isolation between the different teams' data. Registering a new GAE app for each team is not an option either since we expect at least hundreds of teams. So, is there some way to isolate entities from each other within a GAE datastore? Also, would it be feasible from a performance point of view to do this? Or is simply GAE not the right way to go for this kind of web offering? Thanks in advance. BR, Andreas -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.comgoogle-appengine%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Ikai Lan Developer Programs Engineer, Google App Engine -- You received this message because you are subscribed to the Google Groups Google App Engine group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
