[appengine-java] EL update or CL fix
It's been a while since I reported this odd ClassLoading (and EL) behavior: * http://groups.google.com/group/google-appengine-java/browse_thread/thread/e9c9578f034dd1f9 Any plans on fixing this? Or, are there perhaps valid reasons why EL is included in GAE distribution AND loaded by the app's CL? -- 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: EL update or CL fix
Related post: * http://groups.google.com/group/google-appengine-java/browse_thread/thread/67c8c345d386eaec -- 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: OpenID Development server
I have no problem opening an issue. But actually I don't understand if I have a problem/wrong_configuration or App Engine has a bug. I'm waiting for a reply from Google guys... :) fabrizio 2010/10/9 ArtemGr artem...@gmail.com OpenID support is still experimental, there are several open issues concerning it. If you feel you encountered a new problem, maybe you should file an issue! -- 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] Task queue with HTTP POST not working.
I followed the codes in GAE document to make a simple task queue: Queue queue = QueueFactory.getDefaultQueue(); queue.add(TaskOptions.Builder.method(TaskOptions.Method.GET).url(/ security)); This works perfectly. However, if I changed method to HTTP POST: Queue queue = QueueFactory.getDefaultQueue(); queue.add(TaskOptions.Builder.method(TaskOptions.Method.POST).url(/ security)); The task is not executed. What's wrong in my code? -- 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] Task queue with HTTP POST not working.
Does your servlet respond to POST requests? On Oct 10, 2010 10:28 AM, apple apple...@gmail.com wrote: I followed the codes in GAE document to make a simple task queue: Queue queue = QueueFactory.getDefaultQueue(); queue.add(TaskOptions.Builder.method(TaskOptions.Method.GET).url(/ security)); This works perfectly. However, if I changed method to HTTP POST: Queue queue = QueueFactory.getDefaultQueue(); queue.add(TaskOptions.Builder.method(TaskOptions.Method.POST).url(/ security)); The task is not executed. What's wrong in my code? -- 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] AppEngine + Google Data APIs + OAuth
Hello All, I noticed that there is not a lot of material (in fact none) on the web for creating an app in App Engine that uses Google Data APIs and OAuth for Authorization to the APIs. So I started working on a Google Doc to document this process, which now has turned into a Google Site: https://sites.google.com/site/oauthforapi/(still in progress) I am looking for: 1) Suggestions to improve this step-by-step; 2) Few people to review this guide; 3) Direct contributors to add content to the guide. I will add these folks as contributors to the Google Site. Next, I am working on sample code that uses this stack. Saqib -- 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] API CRUD interface for application ?
Hello, The application we run is a backend online service and has no GUI. We some how need to be able to upload new content / update existing datastore entity records. The database model is relatively simple: 1 to many relationships on all of the kinds. I would be happy to use learn about a library / some API configuration option to expose an interface so that external code can do the CRUD logic. Is there any support for this in GAE / other library that runs on GAE? If this plays any role in your suggestions: We're super focused on response times so: We currently use low level data store API. I actually tried Objectify but found even it to be an over kill for our needs. I also deleted all the jars the were added by GAE eclipse plugin but are not used by the code. Actually the list of jars used by the application consists of: ls war/WEB-INF/lib/ appengine-api-1.0-sdk-1.3.7.jar appengine-jsr107cache-1.3.7.jar jackson-core-asl-1.6.0.jarjsr107cache-1.1.jar appengine-api-labs-1.3.7.jar EyeViewUtils-1.0.1-SNAPSHOT.jar jackson-mapper-asl-1.6.0.jar log4j-1.2.16.jar Any recommendations / personal experience with this issue / pointers about correct design of the interface / what technology to use and co. are highly welcome and appreciated. Thank you, Maxim. -- 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: App Engine and IP Addresses
Exactly. Use https://addons.mozilla.org/en-US/firefox/addon/6647/ to see what headers your browser send as part of the HTTP GET request and emulate them in C code. Should work :). On Sat, Oct 9, 2010 at 11:45 PM, Peter Ondruska peter.ondru...@gmail.comwrote: When connecting to IP address you need to use HTTP host header so that GAE knows which application/virtual server you want. On Oct 9, 6:26 pm, Benjamin bsaut...@gmail.com wrote: I've been working on a challenge over the past couple of days and I could really use a knowledge transfer on App Engine, Domains and IP addresses. I seem to be missing something. I'm trying to write a library for Arduino Micro-controllers to do HTTP Posts to a servlet hosted on appengine. For example The URL of the servlet is http://nimbits1.appspot.com/service/currentvalue?point=testformat=json Do to limitations on the Arduino device, i need to get an IP Address that will resolve to nimbits1.appspot.com first, before doing my post to /service/currentvalue?point=testformat=json I have the C code to request an IP from DNS of a domain which works without a problem. So far so good. My problem is my requests seem to hit a brick wall when I try to use the IP instead of the Domain in my requests. Let's say I ping nimbits1.appspot.com - I get 74.125.113.121 or 72.14.204.141 back from the DNS Server. This takes me to Google servers, but not my app. I'm guessing that the server want the subdomain in the request but i'm not provided one. I registered a new domain: nimbits.org on godaddy and followed Nick Johnson's fine tutorial on mapping naked domains to have nimbits.org redirect to nimbits1.appspot.com (As a permanent redirect without masking) http://blog.notdot.net/2009/12/Naked-domains-on-App-Engine if i navigate tohttp://nimbits.org I redirect ok tohttp:// nimbits1.appspot.com Further, if i do a wget in a linux terminal I can see the IP's i'm resolving to: benja...@ben-ubws01:~$ wget nimbits.org --2010-10-09 12:20:43-- http://nimbits.org/ Resolving nimbits.org... 64.202.189.170 Connecting to nimbits.org|64.202.189.170|:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location:http://nimbits1.appspot.com[following] --2010-10-09 12:20:44-- http://nimbits1.appspot.com/ Resolving nimbits1.appspot.com... 64.233.169.141 Connecting to nimbits1.appspot.com|64.233.169.141|:80... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: `index.html.10' [ = ] 3,376 --.-K/s in 0.003s 2010-10-09 12:20:44 (1.18 MB/s) - `index.html.10' saved [3376] If i try and navigate to any of the above IP Addresses i.ehttp:// 64.233.169.141 I endup on google or godaddy, but not my app. Any help would be greatly appriciated. I may have to resort to having users point their arduino to an internal web server that can forward the request, but having arduino devices post directly to app engine would be very cool. -Ben -- 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] Why is guestbook-example-fts (full text search) example working but mine is not?
Hi, I'm really confused about the AppEngine database index limits. My project is using 15 tokens to index some content. I'm using the index then to self-join it up to 3 times. Then my index looks like this: isOnline ▲ , searchIndex ▲ , searchIndex ▲ , searchIndex ▲ , normalizedName ▲ isOnline = boolean searchIndex = list (max 15 items) normalizedName = string Now as soon I add another searchIndex or another property to the indexes I get an error when AppEngine is trying to build the indexes. -- BUT -- Then again I'm looking at the http://code.google.com/p/guestbook-example-appengine-full-text-search/ example which was mentioned by Googles AppEngine Team. This project is using 200 tokens to index! and self-joining it up to 5 times! How is that possible and what I am doing wrong? I need at least one more property to be added to the index. Thanks -- 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: Remove properties from existing data
Both information were very helpful! Problem solved. Thanks! On Oct 7, 7:16 pm, Ikai Lan (Google) ikai.l+gro...@google.com wrote: An easy way to iterate over all your entities is with the Mapper API: http://googleappengine.blogspot.com/2010/07/introducing-mapper-api.html -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger:http://googleappengine.blogspot.com Reddit:http://www.reddit.com/r/appengine Twitter:http://twitter.com/app_engine On Thu, Oct 7, 2010 at 10:11 AM, Didier Durand durand.did...@gmail.comwrote: Hello, You have to go down to low-level datastore api to do that: see Entity.removeProperty() See http://code.google.com/appengine/docs/java/javadoc/com/google/appengi... didier On Oct 7, 2:06 pm, arny arny...@googlemail.com wrote: Hello, I've been looking for a way to remove unused properties from existing data for a while but could not find the right information yet. Everyone is talking about what should not be done, but no one is giving any ideas how to remove. So I can't set NULL, since it's a value as well and gets stored. So how to get rid of unused properties then? On python there is delattr to remove a property completely. On Java there is ... ? Thanks -- 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%2B 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] ClassCastException: String to Collection
I have an object Vendor with a field that is a SetVendorCategory, and VendorCategory has a String name and a Key which I set with the value of name. When I fill a Vendor object with some VendorCategories and try to persist them, I get java.lang.ClassCastException: java.lang.String cannot be cast to java.util.Collection at org.datanucleus.store.mapped.mapping.CollectionMapping.postInsert(CollectionMapping.java:91) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.runPostInsertMappingCallbacks(DatastoreRelationFieldManager.java:217) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.access$200(DatastoreRelationFieldManager.java:48) at org.datanucleus.store.appengine.DatastoreRelationFieldManager$1.apply(DatastoreRelationFieldManager.java:116) at org.datanucleus.store.appengine.DatastoreRelationFieldManager.storeRelations(DatastoreRelationFieldManager.java:81) at org.datanucleus.store.appengine.DatastoreFieldManager.storeRelations(DatastoreFieldManager.java:955) at org.datanucleus.store.appengine.DatastorePersistenceHandler.storeRelations(DatastorePersistenceHandler.java:546) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertPostProcess(DatastorePersistenceHandler.java:304) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObjects(DatastorePersistenceHandler.java:256) at org.datanucleus.store.appengine.DatastorePersistenceHandler.insertObject(DatastorePersistenceHandler.java:240) at org.datanucleus.state.JDOStateManagerImpl.internalMakePersistent(JDOStateManagerImpl.java:3185) at org.datanucleus.state.JDOStateManagerImpl.makePersistent(JDOStateManagerImpl.java:3161) at org.datanucleus.ObjectManagerImpl.persistObjectInternal(ObjectManagerImpl.java:1298) at org.datanucleus.ObjectManagerImpl.persistObject(ObjectManagerImpl.java:1175) at org.datanucleus.jdo.JDOPersistenceManager.jdoMakePersistent(JDOPersistenceManager.java:669) at org.datanucleus.jdo.JDOPersistenceManager.makePersistent(JDOPersistenceManager.java:694) at com.engayged.server.VendorServiceImpl.saveNewVendor(VendorServiceImpl.java:75) at com.engayged.server.VendorServiceImplTest.addNewVendorAddsCategory(VendorServiceImplTest.java:74) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) I can't even figure out how to start debugging this, can anyone 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.
[appengine-java] Re: How can i allow user to download a zip file?
And how to add a folder to the zip file?
On 16 Set, 10:32, Crll Vnc crll...@gmail.com wrote:
Indeed, it works, with ZipInputStream.
Here is a piece of code I use in my zipped file upload servlet :
[...]
CheckedInputStream csumi = new
CheckedInputStream(req.getInputStream(), new CRC32());
ZipInputStream zin = new ZipInputStream(new
BufferedInputStream(csumi));
@SuppressWarnings(unused)
ZipEntry ze;
StringBuffer buf = new StringBuffer();
while ((ze = zin.getNextEntry()) != null) {
int x;
while ((x = zin.read()) != -1) {
char c = (char) x;
buf.append(c);
}
}
zin.close();
s = buf.toString();
[...]
Bye.
On 15/09/10 22:51, Guillaume Laforge glafo...@gmail.com wrote:
Hi,
Have you looked at Java's ZipOutputStream?
http://download.oracle.com/javase/1.4.2/docs/api/java/util/zip/ZipOut...
.html
Since you can't create files on the file system, I suspect the approach of
streaming the zip through a ZipOutputStream would be the most plausible one.
That and you set a content-disposition header of myfilename.zip.
And I hope it'll work :-)
Guillaume
PS: I've never tried that, but that's what I'd investigate first.
On Wed, Sep 15, 2010 at 03:19, Bit Liner bitli...@gmail.com wrote:
My app creates dinamically two files so that then the users can
download these files in one zip file.
But i have problem in implementing this operations.
Some suggestion to help me?
Library, if gae supports this operations, etc.
(i have tried to use gaeVfs, but i have met problems: i cannot write
the content of a file on the response, so i can download the file but
its content is empty )
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[appengine-java] Re: Task queue with HTTP POST not working.
No. Thank you Andy. I forgot all my codes are inside doGet() function. What a silly mistake I did. On 10月11日, 上午2時09分, andy stevko andy.ste...@gmail.com wrote: Does your servlet respond to POST requests? -- 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: [google-appengine] Re: Help! Unable to deploy to production
Thanks, Tim, but no, I don't have custom error responses and my application is Java based. Magically, the problem cleared itself up shortly after I posted the original request to the group and with no changes on my part the deployment to production worked. There was a Python related issue being reported in the System Status page at the same time I was experiencing the issue but I have no way of telling if it could have caused my deployment attempts to fail. Jeff On Sat, Oct 9, 2010 at 10:43 PM, Tim Hoffman zutes...@gmail.com wrote: Hi Jeff Do you have custom error responses . If you do and they overlap with static files handler you can get this error. Well at least you get this with python. I wouldn't be surprised if you get the same thing with java. At least it's worth a look. Rgds T On Oct 10, 1:29 am, Jeff Schwartz jefftschwa...@gmail.com wrote: My appid is i-emote and I'm getting the following errors when I deploy to production: Creating staging directory Scanning for jsp files. Scanning files on local disk. Scanned 250 files. Scanned 500 files. Initiating update. Cloning 141 static files. Cloned 100 files. Cloning 429 application files. Rolling back the update. java.io.IOException: Error posting to URL: https://appengine.google.com/api/appversion/clonefiles?app_id=i-emote... 500 Internal Server Error htmlhead meta http-equiv=content-type content=text/html;charset=utf-8 title500 Server Error/title /head body text=#00 bgcolor=#ff h1Error: Server Error/h1 h2The server encountered an error and could not complete your request.pIf the problem persists, please A HREF= http://code.google.com/appengine/community.html;report/A your problem and mention this error message and the query that caused it./h2 h2/h2 /body/html Please be so kind as to look into this for me and help me resolve this. I have deployed many times before but this is the first time I've gotten this error. Thanks in advance. Jeff Debugging information may be found in C:\Users\Jeff\AppData\Local\Temp\appengine-deploy2214041315377857839.log -- Jeff -- 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. -- Jeff -- 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: Help! Unable to deploy to production
no probs. Custom error responses are available to java too. So watch out for that one ;-) Rgds T On Oct 10, 7:38 pm, Jeff Schwartz jefftschwa...@gmail.com wrote: Thanks, Tim, but no, I don't have custom error responses and my application is Java based. Magically, the problem cleared itself up shortly after I posted the original request to the group and with no changes on my part the deployment to production worked. There was a Python related issue being reported in the System Status page at the same time I was experiencing the issue but I have no way of telling if it could have caused my deployment attempts to fail. Jeff On Sat, Oct 9, 2010 at 10:43 PM, Tim Hoffman zutes...@gmail.com wrote: Hi Jeff Do you have custom error responses . If you do and they overlap with static files handler you can get this error. Well at least you get this with python. I wouldn't be surprised if you get the same thing with java. At least it's worth a look. Rgds T On Oct 10, 1:29 am, Jeff Schwartz jefftschwa...@gmail.com wrote: My appid is i-emote and I'm getting the following errors when I deploy to production: Creating staging directory Scanning for jsp files. Scanning files on local disk. Scanned 250 files. Scanned 500 files. Initiating update. Cloning 141 static files. Cloned 100 files. Cloning 429 application files. Rolling back the update. java.io.IOException: Error posting to URL: https://appengine.google.com/api/appversion/clonefiles?app_id=i-emote... 500 Internal Server Error htmlhead meta http-equiv=content-type content=text/html;charset=utf-8 title500 Server Error/title /head body text=#00 bgcolor=#ff h1Error: Server Error/h1 h2The server encountered an error and could not complete your request.pIf the problem persists, please A HREF= http://code.google.com/appengine/community.html;report/A your problem and mention this error message and the query that caused it./h2 h2/h2 /body/html Please be so kind as to look into this for me and help me resolve this. I have deployed many times before but this is the first time I've gotten this error. Thanks in advance. Jeff Debugging information may be found in C:\Users\Jeff\AppData\Local\Temp\appengine-deploy2214041315377857839.log -- Jeff -- 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%2Bunsubscrib e...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- Jeff -- 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] Beggining JDO Question
Hi There, I am beginning an GAE + GWT Application, and I have a simple question, that I think you guys knows the answer JIT: I want to do this: Facts: 1. I have an entity in my server package (aplicationid.server.MyEntity) 2. I have a server-side method that returns a MyEntity object I want to: USE THIS METHOD in client-side part!!! It seems I can't use the Entity Class inside the client package, because its source code is not available there. How can I solve this simple problem? Thanks, Pedro. -- 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: Frequent deadline exceeded errors.
Yesterday I was quite alarmed by the same issue. I have been very carefully refactoring my social web application for efficiency and yesterday my logs lit up red. I'm making heavy use of tasks ajax and all my requests are now fine grained so as to limit their resource load. I am using all the 'tricks' I've learned about how to maximize use of the datastore so as to limit cpu cycles and speed up data store operations. There is little more I can do to lighten my application and if yesterday is any indication of the future this doesn't bode well for my application on App Engine. I sincerely hope that the Team of Googlers, a fine bunch I might add, are addressing these issues in earnest. I'd hate to have to give up on the platform at this point as I've invested so much time energy. Everyone who has previewed my app - i-emote - loves it and are urging me forward to a version 1 release but now I fear that I might be forced to rethink App Engine as a viable platform for my type of application. I hope you guys prove me wrong. Jeff On Sun, Oct 10, 2010 at 7:17 AM, Carlos Ble ble.jur...@gmail.com wrote: Hi, Our app (id=mavencharts) was down last night from 8:04PM (Pacific time) to 8:51PM, this is almost 1 hour. We just got error 500 trying to load the home page (google.appengine.runtime.DeadlineExceededError and also the warning saying.. After handling this request... which is also error code 500). According to appstats, our app makes 7 queries to datastore to load the home and it usually loads within 300ms. When memcache is available the home page makes just 1 query to datastore. We use GAE Django-helper with django 1.1 Since last september the 13th, system is unreliable and we are really worried because things are not getting better. Google engineers tell us they know there is a problem but nothing more. If Google think this situation is going to last, it would be great to tell us, so that we can consider moving to another cloud system, rather than just wait. Thanks On 9 oct, 23:13, Robert Lancer robert.lan...@gmail.com wrote: I experienced the same problem for a few minutes on this past Thursday, unfortunately it was during a sales pitch. I wish Google would let us buy our way into a more reliable uptime, some apps need to be up no mater what, while others can tolerate sporadic errors. On Oct 9, 2:13 pm, Zarko eladza...@gmail.com wrote: We see elevation in 500 requests (Request was aborted after waiting too long to attempt to service your request. This may happen sporadically when the App Engine serving cluster is under unexpectedly high or uneven load. If you see this message frequently, please contact the App Engine team.) today also... On Oct 9, 7:55 pm, John Gardner hux...@gmail.com wrote: After exercising the site a while, it's smoothed out. It seems like the 500 errors were from trying to spin up new instances. The site was completely idle before visitors arrived and the 500 storm started. It seems like reserved instances is a *critical* feature. There's no way we can leave beta when the first impression a user gets of our site is a 500 page. We have billing enabled, but all the quota in the world doesn't help if the user sees an error page and walks away... -John On Oct 9, 12:30 pm, John Gardner hux...@gmail.com wrote: We're getting constant DeadlineExceededErrors on our production site this morning. Our app ID is cxiongame. I'm unable to log in; the login request runs into the deadline, when this is ordinarily completed in less than 1 second. -John -- 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. -- Jeff -- 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: Prerelease SDK 1.3.8 is out!
Another point of view is problem when you sold your site to customer, so you can be sure that your code is protected. I know this is not good practice but I'm sure this case exists. On Oct 6, 12:48 pm, Greg g.fawc...@gmail.com wrote: On Oct 6, 1:28 pm, Ikai Lan (Google) ikai.l+gro...@google.com wrote: - The developer who uploaded an app version can download that version's code using the appcfg.py download_app command. -- Mikhail Kashkin http://devcult.ru/ http://app-engine.tumblr.com/ - блог об 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: Prerelease SDK 1.3.8 is out!
You can be developer who depoly, but customer pay for instance. On Oct 6, 10:52 pm, alf alberto@gmail.com wrote: +1 only can download code administrator who pay bill -- Mikhail Kashkin http://devcult.ru/ http://app-engine.tumblr.com/ - блог об 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] High Latency Issues
I am experiencing very high latency issues today even after a cold server
start. My app id is i-emote.
Here is an example taken from my log immediately after I had a warm server.
It is for an ajax request made immediately after the server had been spun up
and was then prepared to process requests. I know this is the case because
my client's code to kick off this ajax request is only made when there is
some input activity on the page like moving the mouse over the page. The log
show numerous entries for 10-10 but the following was one which was logged
after the app server was warm:
i-emote.appspot.com ms=2890 cpu_ms=3882 api_cpu_ms=12
cpm_usd=0.107886 throttle_code=1
On the server this request does the following:
Query the datastore (I am using Groovy with Objectify) - ListComment cl =
ofy().query(Comment.class).filter('emoteId',id).list()
This query resulted in 0 entities and the empty list was forwarded as a
parameter to a template which because the list was empty did 0 work because
there was no html to render.
That was the extent of this ajax's task on the server so I don't understand
why cpu_ms was so high.
I love App Engine as a platform. I see it as the future. I don't need to
sold on its advantages but right now I am struggling with issues of
performance instead of spending time developing my application which is
still in preview but which I am hoping to release as a version 1 very soon.
In any other environment I believe my application would be considered well
engineered and very fast. Can someone from the Team please look into this
for me and tell me either what I am doing wrong or what is wrong with App
Engine and what is being done to correct it and when we can expect to see it
corrected? I know App Engine is in preview but in truth - at this time
anyway - it seems more like an early beta. I wanted to begin billing so I
can exceed some of the free quotas but I don't want to pay for usage over
quota due to App Engine issues. I want to pay to go over free quota so as to
provide more resources to my users as my user base will spike once I
announce my application's official release.
Please, I need your help here.
Sincerely,
Jeff
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[google-appengine] Re: High Latency Issues
Please see the attached image which is another indication that something is
very wrong on app engine's end. The chart is showing the last 6 hours of
Request/Second. Do you see all those little apexes in the time line? What is
causing them? 6 hours ago my app was dormant with no users on the system I
was sleeping so I know I wasn't on the system. User's logins are logged by
date/time and no one was logged in.
Again, please, I need the Team to help me here.
Jeff
On Sun, Oct 10, 2010 at 8:51 AM, Jeff Schwartz jefftschwa...@gmail.comwrote:
I am experiencing very high latency issues today even after a cold server
start. My app id is i-emote.
Here is an example taken from my log immediately after I had a warm server.
It is for an ajax request made immediately after the server had been spun up
and was then prepared to process requests. I know this is the case because
my client's code to kick off this ajax request is only made when there is
some input activity on the page like moving the mouse over the page. The log
show numerous entries for 10-10 but the following was one which was logged
after the app server was warm:
i-emote.appspot.com ms=2890 cpu_ms=3882 api_cpu_ms=12 cpm_usd=0.107886
throttle_code=1
On the server this request does the following:
Query the datastore (I am using Groovy with Objectify) - ListComment cl =
ofy().query(Comment.class).filter('emoteId',id).list()
This query resulted in 0 entities and the empty list was forwarded as a
parameter to a template which because the list was empty did 0 work because
there was no html to render.
That was the extent of this ajax's task on the server so I don't understand
why cpu_ms was so high.
I love App Engine as a platform. I see it as the future. I don't need to
sold on its advantages but right now I am struggling with issues of
performance instead of spending time developing my application which is
still in preview but which I am hoping to release as a version 1 very soon.
In any other environment I believe my application would be considered well
engineered and very fast. Can someone from the Team please look into this
for me and tell me either what I am doing wrong or what is wrong with App
Engine and what is being done to correct it and when we can expect to see it
corrected? I know App Engine is in preview but in truth - at this time
anyway - it seems more like an early beta. I wanted to begin billing so I
can exceed some of the free quotas but I don't want to pay for usage over
quota due to App Engine issues. I want to pay to go over free quota so as to
provide more resources to my users as my user base will spike once I
announce my application's official release.
Please, I need your help here.
Sincerely,
Jeff
--
Jeff
--
Jeff
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attachment: 2010-10-10 11h45_09.png
[google-appengine] TransientError
Greetings app engine pilots, Well I received my first TransientError on taskqueue.add yesterday, appid: fonefindr .. My question is this, what does this mean? I have seen some people say that the task is actually still added even when this exception is raised. Do I need to try and catch this and re-add my task on this exception? I am currently using tasks to do alot of things in many apps, due to other errors that can happen, such as datastore timeouts. Using tasks is nice because they will retry on error, giving me some confidence when I want done will get done. But now I am realizing that maybe tasks cannot be reliably added to the queue? Anybody have experience with TransientError ? 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] How about JavaScript v8 as the next language for Google App Engine?
Hey All, Love what you guys have created with Google App Engine although I'm surprised that you haven't offered JavaScript as a target language yet. It's a ubiquitous language known by most web developers and is one of the primary languages engrained into Google's DNA as you already provide a great runtime for it in V8. The success of node.js/expressjs should prove that it is a viable server platform with a willing community. The way I see it a V8-powered JavaScript hits a sweet spot: I imagine it would be faster to run than Python (my major gripe against it) and more terse, expressive and functional than Java (my major dislike). As most gae apps are websites, JavaScript also reduces the impedance language miss-match as it will allow you to use the one language for both client and server. I would imagine that the per-request model of gae would also be better suited for JavaScript as opposed to the high start-up cost and long-running nature of Java. What do you guys think? I'm sure it's not the first time this has been suggested, as it seems like a natural choice. -- 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 about JavaScript v8 as the next language for Google App Engine?
I think it would be interesting too. Star issue 35. http://code.google.com/p/googleappengine/issues/detail?id=35 Just please do not post a +1 or me too type comment, a star is sufficient. Robert On Sun, Oct 10, 2010 at 14:56, Demis Bellot demis.bel...@gmail.com wrote: Hey All, Love what you guys have created with Google App Engine although I'm surprised that you haven't offered JavaScript as a target language yet. It's a ubiquitous language known by most web developers and is one of the primary languages engrained into Google's DNA as you already provide a great runtime for it in V8. The success of node.js/expressjs should prove that it is a viable server platform with a willing community. The way I see it a V8-powered JavaScript hits a sweet spot: I imagine it would be faster to run than Python (my major gripe against it) and more terse, expressive and functional than Java (my major dislike). As most gae apps are websites, JavaScript also reduces the impedance language miss-match as it will allow you to use the one language for both client and server. I would imagine that the per-request model of gae would also be better suited for JavaScript as opposed to the high start-up cost and long-running nature of Java. What do you guys think? I'm sure it's not the first time this has been suggested, as it seems like a natural choice. -- 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] django i18n complie messages
i have set up django i18n - with app engine - and it works - but i cant compile the messages etc. To be honest i dont understand how i run the commands. Im using aptanna. From the project explorer if i right click i can run the command like it is already in my apps root folder so i assume i type python to run the python shell which works but then i cant see to get anywhere. acording to these instructions: http://code.google.com/p/yjl/source/browse/GoogleAppEngine/yjltest/i18n.py http://www.djangoproject.com/documentation/0.96/i18n/ http://bazaar.launchpad.net/~itt-devs/issuetrackertracker/main/revision/130 i need to do something like: # To generate a new language for the first time python2.5 ../google_appengine/lib/django/django/bin/make-messages.py -l en # To compile all languages python2.5 ../google_appengine/lib/django/django/bin/compile-messages.py # To update all languages python2.5 ../google_appengine/lib/django/django/bin/make-messages.py -a or bin/complie-messages.py but none of these commands or vairiants work. Can anyone tell me what/or where i am going wrong. I am using aptanna. python app engine. The three links above give varios different suggestions on how this is done. Regards Martin Webb The information contained in this email is confidential and may contain proprietary information. It is meant solely for the intended recipient. Access to this email by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted in reliance on this, is prohibited and may be unlawful. No liability or responsibility is accepted if information or data is, for whatever reason corrupted or does not reach its intended recipient. No warranty is given that this email is free of viruses. The views expressed in this email are, unless otherwise stated, those of the author -- 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] Transfer application to other account
Hi I was created application in app engine and today I want to give ownership of application to another account. I invite the other developer, he accept invitation and then delete my account as application developer but ... in my app engine account I still view You have 7 applications remaining. (I have 2 other working) and the other developer, in dashboard, have transfered application but the text is You have 10 applications remaining. It is true that I create the application but is it normal to still count on me even I'm not developer/administrator on application any more ? Regards ! -- 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: How about JavaScript v8 as the next language for Google App Engine?
My gut reaction to this is that I'd rather have Python 3 over server side JavaScript. The Python API is already comparable to (and possibly faster than) the Java API. See http://gaejava.appspot.com/ and http://stackoverflow.com/questions/1085898/choosing-java-vs-python-on-google-app-engine. So the performance argument is arguable at best. Additionally I don't think the value of a tight developer community can be underestimated. In particular I find these forums to be a huge benefit for learning best practices, tips, and tricks. But I fear that introducing another language -- and especially JavaScript, with it's tower of babel of libraries and coding styles -- would decrease the signal to noise ratio of the forums and the developer community. And that would affect my productivity more than language impedance. Don't get me wrong -- I really, really, like JavaScript. It's an awesomely creative language for making highly functional user interfaces. But I really, really like Python as well -- mostly because it is so clear, readable, predictable, and mostly has only one right way to do things. This seems like a better language choice for server. At least until GO (http://golang.org/) catches on ;-) John On Oct 10, 1:16 pm, Demis Bellot demis.bel...@gmail.com wrote: Thanks for the link, I just added a little excerpt from my post to the list. I think the fact that so many other devs are coming to the same conclusion independently speaks of how favourable a JavaScript for GAE solution is. I'm sure if Google released a poll to gauge public interest about it, you would get an positive response from the dev community. Here's hoping for some positive steps in exploring the idea. - Demis On Sun, Oct 10, 2010 at 8:29 PM, Robert Kluin robert.kl...@gmail.comwrote: I think it would be interesting too. Star issue 35. http://code.google.com/p/googleappengine/issues/detail?id=35 Just please do not post a +1 or me too type comment, a star is sufficient. Robert On Sun, Oct 10, 2010 at 14:56, Demis Bellot demis.bel...@gmail.com wrote: Hey All, Love what you guys have created with Google App Engine although I'm surprised that you haven't offered JavaScript as a target language yet. It's a ubiquitous language known by most web developers and is one of the primary languages engrained into Google's DNA as you already provide a great runtime for it in V8. The success of node.js/expressjs should prove that it is a viable server platform with a willing community. The way I see it a V8-powered JavaScript hits a sweet spot: I imagine it would be faster to run than Python (my major gripe against it) and more terse, expressive and functional than Java (my major dislike). As most gae apps are websites, JavaScript also reduces the impedance language miss-match as it will allow you to use the one language for both client and server. I would imagine that the per-request model of gae would also be better suited for JavaScript as opposed to the high start-up cost and long-running nature of Java. What do you guys think? I'm sure it's not the first time this has been suggested, as it seems like a natural choice. -- 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%2Bunsubscrib e...@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%2Bunsubscrib e...@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.
Re: [google-appengine] Re: How about JavaScript v8 as the next language for Google App Engine?
Unless I'm mistaken about recent advancements, Python belongs in the same performance category as Ruby, Perl and PHP i.e. slow compared against native or optimized managed languages. I understand there are a number efforts underway to improve performance (e.g. using an LLVM backend with http://code.google.com/p/unladen-swallow/), but I don't think this is actually being used yet? I'm sure with having Guido onboard Python has been heavily optimized for GAE but there is only so much optimizations possible with CPython. The library code may be fast (i.e. thin wrappers over C libs) but the users code is going to be interpreted and slow. Since it impacts the performance of Chrome (one of Google's most valuable assets) and its millions of end users, I would think that more of Google's engineering effort is behind making JavaScript as fast as possible with V8 which I believe shows in the computer language shoot-out benchmarks, where it looks as if V8 is several times faster than any Python implementation available: http://shootout.alioth.debian.org/u32/which-programming-languages-are-fastest.php?v8=onpython3=oncalc=chart The GAE Python API's also exposes sync IO requests and encourages buffering which I believe also contributes a significant performance penalty per request. This is only an educated guess and I'm not sure what these raw language numbers translates in GAE performance though it should be pretty indicative of the perf advantages possible. With the lack of an actual V8 implementation, internal Google Engineers would have the best insight as to the potential gains if any (which I encourage on this thread). As for the language impedance mismatch, I think that having code from the same application being able to run on both client and server is heavily underrated. YUI is show casing some exciting possibilities they're doing around node.js today: http://www.slideshare.net/apmoore/running-yui-3-on-nodejs-bayjax Where currently a lot of their JavaScript libraries already run on node.js, but even more impressive than that they have implemented a server-side W3C DOM that enables the same code they use do generate their DHTML Calendar control can be run on the server and output rendered on clients that have JavaScript disabled. Much of Google's Closure Library and its optimized JavaScript compiler should be able re-used on the server as well. I think this is only touching the ice berg, and Douglas Crockford has an inspirational video presentation on using JavaScript and an event-loop architecture (like node.js) on the server: http://developer.yahoo.com/yui/theater/video.php?v=crockford-loopage Before V8 and node.js I would not have considered it, however with the maturing of these technologies, the plethora of well-tested JavaScript frameworks and libraries available and what I believe is a rejuvenated look back into JavaScript - I think there has never been a better time to provide a server-side JavaScript option in GAE. - Demis On Sun, Oct 10, 2010 at 11:10 PM, John McLaughlin johnmclaugh...@massanimation.com wrote: My gut reaction to this is that I'd rather have Python 3 over server side JavaScript. The Python API is already comparable to (and possibly faster than) the Java API. See http://gaejava.appspot.com/ and http://stackoverflow.com/questions/1085898/choosing-java-vs-python-on-google-app-engine . So the performance argument is arguable at best. Additionally I don't think the value of a tight developer community can be underestimated. In particular I find these forums to be a huge benefit for learning best practices, tips, and tricks. But I fear that introducing another language -- and especially JavaScript, with it's tower of babel of libraries and coding styles -- would decrease the signal to noise ratio of the forums and the developer community. And that would affect my productivity more than language impedance. Don't get me wrong -- I really, really, like JavaScript. It's an awesomely creative language for making highly functional user interfaces. But I really, really like Python as well -- mostly because it is so clear, readable, predictable, and mostly has only one right way to do things. This seems like a better language choice for server. At least until GO (http://golang.org/) catches on ;-) John On Oct 10, 1:16 pm, Demis Bellot demis.bel...@gmail.com wrote: Thanks for the link, I just added a little excerpt from my post to the list. I think the fact that so many other devs are coming to the same conclusion independently speaks of how favourable a JavaScript for GAE solution is. I'm sure if Google released a poll to gauge public interest about it, you would get an positive response from the dev community. Here's hoping for some positive steps in exploring the idea. - Demis On Sun, Oct 10, 2010 at 8:29 PM, Robert Kluin robert.kl...@gmail.com wrote: I think it would be interesting too. Star issue 35.
[google-appengine] Re: How about JavaScript v8 as the next language for Google App Engine?
Thanks for the info Demis, I alway like listening to Douglas Crockford. I also checked out http://developer.yahoo.com/yui/theater/video.php?v=glass-node. Very interesting stuff, I can definitely see using it in the future. In particular using JavaScript as the templating engine seems really powerful. So you've changed my mind. However since I'm still worried about the plethora part of ...plethora of well-tested JavaScript frameworks and libraries available..., I'll say that if node.js, YUI3, and JSLint are defined as best practices -- I'm on board -- server-side JavaScript all the way. - John On Oct 10, 4:21 pm, Demis Bellot demis.bel...@gmail.com wrote: Unless I'm mistaken about recent advancements, Python belongs in the same performance category as Ruby, Perl and PHP i.e. slow compared against native or optimized managed languages. I understand there are a number efforts underway to improve performance (e.g. using an LLVM backend withhttp://code.google.com/p/unladen-swallow/), but I don't think this is actually being used yet? I'm sure with having Guido onboard Python has been heavily optimized for GAE but there is only so much optimizations possible with CPython. The library code may be fast (i.e. thin wrappers over C libs) but the users code is going to be interpreted and slow. Since it impacts the performance of Chrome (one of Google's most valuable assets) and its millions of end users, I would think that more of Google's engineering effort is behind making JavaScript as fast as possible with V8 which I believe shows in the computer language shoot-out benchmarks, where it looks as if V8 is several times faster than any Python implementation available:http://shootout.alioth.debian.org/u32/which-programming-languages-are... The GAE Python API's also exposes sync IO requests and encourages buffering which I believe also contributes a significant performance penalty per request. This is only an educated guess and I'm not sure what these raw language numbers translates in GAE performance though it should be pretty indicative of the perf advantages possible. With the lack of an actual V8 implementation, internal Google Engineers would have the best insight as to the potential gains if any (which I encourage on this thread). As for the language impedance mismatch, I think that having code from the same application being able to run on both client and server is heavily underrated. YUI is show casing some exciting possibilities they're doing around node.js today:http://www.slideshare.net/apmoore/running-yui-3-on-nodejs-bayjax Where currently a lot of their JavaScript libraries already run on node.js, but even more impressive than that they have implemented a server-side W3C DOM that enables the same code they use do generate their DHTML Calendar control can be run on the server and output rendered on clients that have JavaScript disabled. Much of Google's Closure Library and its optimized JavaScript compiler should be able re-used on the server as well. I think this is only touching the ice berg, and Douglas Crockford has an inspirational video presentation on using JavaScript and an event-loop architecture (like node.js) on the server:http://developer.yahoo.com/yui/theater/video.php?v=crockford-loopage Before V8 and node.js I would not have considered it, however with the maturing of these technologies, the plethora of well-tested JavaScript frameworks and libraries available and what I believe is a rejuvenated look back into JavaScript - I think there has never been a better time to provide a server-side JavaScript option in GAE. - Demis On Sun, Oct 10, 2010 at 11:10 PM, John McLaughlin johnmclaugh...@massanimation.com wrote: My gut reaction to this is that I'd rather have Python 3 over server side JavaScript. The Python API is already comparable to (and possibly faster than) the Java API. Seehttp://gaejava.appspot.com/ and http://stackoverflow.com/questions/1085898/choosing-java-vs-python-on... . So the performance argument is arguable at best. Additionally I don't think the value of a tight developer community can be underestimated. In particular I find these forums to be a huge benefit for learning best practices, tips, and tricks. But I fear that introducing another language -- and especially JavaScript, with it's tower of babel of libraries and coding styles -- would decrease the signal to noise ratio of the forums and the developer community. And that would affect my productivity more than language impedance. Don't get me wrong -- I really, really, like JavaScript. It's an awesomely creative language for making highly functional user interfaces. But I really, really like Python as well -- mostly because it is so clear, readable, predictable, and mostly has only one right way to do things. This seems like a better language choice for server. At least until GO (http://golang.org/)
[google-appengine] Re: Transfer application to other account
I have personally noticed that if I delete applications from my account I am not re-credited in my allowed application count. I have been told that it is possibly a bug right now. On Oct 10, 3:14 pm, Nikolay Tenev tenev.niko...@gmail.com wrote: Hi I was created application in app engine and today I want to give ownership of application to another account. I invite the other developer, he accept invitation and then delete my account as application developer but ... in my app engine account I still view You have 7 applications remaining. (I have 2 other working) and the other developer, in dashboard, have transfered application but the text is You have 10 applications remaining. It is true that I create the application but is it normal to still count on me even I'm not developer/administrator on application any more ? Regards ! -- 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: Prerelease SDK 1.3.8 is out!
+1 for optional download. On Wed, Oct 6, 2010 at 5:48 PM, Greg g.fawc...@gmail.com wrote: On Oct 6, 1:28 pm, Ikai Lan (Google) ikai.l+gro...@google.com wrote: - The developer who uploaded an app version can download that version's code using the appcfg.py download_app command. I'm not at all happy about this. I know how frequent plaintive I lost my code how can I get it back? messages are in this group, but the write-only nature of appengine gave me a lot of confidence that our source code is safe. Now a single password is all that stands between our competitors and our IP. Why expose ALL users to risk (and open Google to lawsuits) for the sake of a few inexperienced developers? Star this post if you agree. I guess one solution would be to make downloading optional. A setting to disable source downloading in app.yaml would be safe, because uploading a new version would destroy the existing code. Greg. -- 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. -- edel -- 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.
