[google-appengine] Re: HTTPS pages with some unencrypted information

[David Wilson]

2009/3/6 OliWeiD oliver.weimar.dr...@googlemail.com:

 Hi,

 I have setup some pages in app.yaml with secure: always and some few
 are getting the following warn message in e.g. Firefox (IE7 is
 similar):
 You have requested an encrypted page that contains some unencrypted
 information. Information that you see or enter on this page could
 easily be read by a third party.

 Is there a plug in or something to identify, which elements are
 unencrypted?

Firefox: right click the document background, choose View Page Info,
and choose the Media tab.  I think this shows everything except for
scripts, which you can install Firebug (and enable the Net panel) in
order to view.


 Or a list of hints to check?

 Thanks in advance

 Oliver W-D
 




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[google-appengine] Re: HTTPS pages with some unencrypted information

[bd_]

On Mar 6, 1:22 am, OliWeiD oliver.weimar.dr...@googlemail.com wrote:
 Hi,

 I have setup some pages in app.yaml with secure: always and some few
 are getting the following warn message in e.g. Firefox (IE7 is
 similar):
 You have requested an encrypted page that contains some unencrypted
 information. Information that you see or enter on this page could
 easily be read by a third party.

 Is there a plug in or something to identify, which elements are
 unencrypted?
 Or a list of hints to check?

Tools-page info-media
Look for anything not coming through https.
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[google-appengine] Re: Windows 7 - can't run appengine sdk

[Chen Harel]

Hi, Here is the full traceback:

C:\Users\Chook\Documents\Eclipse\workspace\tvepisodes
\serverdev_appserver.py ep
ihourtesting2
dir: E:\google_appengine
script: E:\google_appengine\google\appengine\tools
name: __main__
scipt_name: dev_appserver_main.py
script_path: E:\google_appengine\google\appengine\tools
\dev_appserver_main.py
{'version_tuple': (2, 5), 'SCRIPT_EXCEPTIONS': {'dev_appserver.py':
'dev_appserv
er_main.py'}, '__builtins__': module '__builtin__' (built-in),
'__file__': 'E:
\\google_appengine\\dev_appserver.py', 'script_name':
'dev_appserver_main.py', '
DIR_PATH': 'E:\\google_appengine', 'sys': module 'sys' (built-in),
'SCRIPT_DIR
': 'E:\\google_appengine\\google\\appengine\\tools', 'EXTRA_PATHS':
['E:\\google
_appengine', 'E:\\google_appengine\\lib\\django', 'E:\\google_appengine
\\lib\\we
bob', 'E:\\google_appengine\\lib\\yaml\\lib'], '__name__': '__main__',
'script_p
ath': 'E:\\google_appengine\\google\\appengine\\tools\
\dev_appserver_main.py', '
os': module 'os' from 'C:\Python25\lib\os.pyc', '__doc__':
'Convenience wrappe
r for starting an appengine tool.'}
['E:\\google_appengine\\dev_appserver.py', 'epihourtesting2']
Traceback (most recent call last):
  File E:\google_appengine\dev_appserver.py, line 59, in module
execfile(script_path, globals())
  File E:\google_appengine\google\appengine\tools
\dev_appserver_main.py, line
358, in module
sys.exit(main(sys.argv))
  File E:\google_appengine\google\appengine\tools
\dev_appserver_main.py, line
316, in main
server = MakeRpcServer(option_dict)
  File E:\google_appengine\google\appengine\tools
\dev_appserver_main.py, line
274, in MakeRpcServer
server = appcfg.HttpRpcServer(
AttributeError: 'module' object has no attribute 'HttpRpcServer'

C:\Users\Chook\Documents\Eclipse\workspace\tvepisodes\server

I will try Reinstalling...

On Mar 6, 8:13 am, Sumit Bando sumit.ba...@gmail.com wrote:
 I have been using 1.1.8  on Windows 7 for a month, so your problem is
 likely something else.

 Good luck.

 Sumit

 On Mar 5, 3:28 pm, David Wilson d...@botanicus.net wrote:



  Hi Chen,

  Please post the full text of the traceback you received. Have you
  tried reinstalling the SDK? Do you by any chance have a module called
  appengine_rpc anywhere in your application, or sys.path?

  David.

  2009/3/5 Chen Harel chook.ha...@gmail.com:

   AttributeError: 'module' object has no attribute 'HttpRpcServer'

   I'm getting this error message while trying dev_appserver.py on a
   project that is working in vista
   (Although in vista I used 1.1.7 and now in Windows 7 I use 1.19)
   Python is 2.5.4 x64

   Please assist, what can cause this error

  --
  It is better to be wrong than to be vague.
    — Freeman Dyson
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[google-appengine] Filesize limit not raised from 1MB, with latest SDK

[James]

Appcfg.py hasn't upped its limit yet from 1MB (1048576 bytes) yet, on
Linux and OS X. In both cases, I have the 1.19 SDK. These files are in
a static directory, as defined in the app.yaml, and are all between
1MB-10MB.

Is this a known issue, or was I mistaken that the filesize limit is
already raised?
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[google-appengine] Re: a fundamental increase in App Engine transparency and locality is needed

[GregF]

Interesting. Our app has paying customers, so this week's latencies
have been pretty stressful - but I don't agree with you.

We have dedicated servers for our old apps, and use Appengine for new
ones. When old customers call asking about problems, the world is on
my shoulders - I have total responsibility for it, and have to work
through the night to resolve the issue. When new customers call, I
make sure Google is aware of the issue, and after that I can't do
anything about it - Google's engineers work through night instead of
me, and in my book that's worth quite a bit.

What did I say when customers called this week? The truth, as far as I
could tell. The hardware upgrade caused an instability in the
datastore, and engineers were working on it. My customers didn't
enquire any further, but if they had, I'd have explained that our app
is hosted on Google's Appengine, and their engineers were hard at work
to resolve the issue. I have a reasonably high regard for my sysadmin
skills, but I think informed customers would prefer Google's finest to
be working on the issue than little old me.

Having said that, I DO have a beef with the lack of feedback during
the recent issue, as you'll see from a previous post. Google appear to
have taken that on board, saying they will improve this... time will
tell. You are correct that we need to tell our customers what is going
on, and Google need to give us that information regularly.

Bottom line - if you really want to know where your machines are
located and the name of the guy running them, talk to Rackspace or
some other virtual hosting outfit - or for real control, go for your
own machines in colo. I've done all of the above, and for new apps I
have decided to cede control - and responsibility - to Google. I'm
paying less and sleeping better, but whether this was a good decision
depends on whether recent events become the norm... time will tell.
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[google-appengine] Re: Query latency is not resolved

[GregF]

Don't take my word for it - that was just what I see happening.
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[google-appengine] Re: Windows 7 - can't run appengine sdk

[Chen Harel]

Reinstalling didn't help,
Could this be caused by a Python issue?

On Mar 6, 10:59 am, Chen Harel chook.ha...@gmail.com wrote:
 Hi, Here is the full traceback:

 C:\Users\Chook\Documents\Eclipse\workspace\tvepisodes
 \serverdev_appserver.py ep
 ihourtesting2
 dir: E:\google_appengine
 script: E:\google_appengine\google\appengine\tools
 name: __main__
 scipt_name: dev_appserver_main.py
 script_path: E:\google_appengine\google\appengine\tools
 \dev_appserver_main.py
 {'version_tuple': (2, 5), 'SCRIPT_EXCEPTIONS': {'dev_appserver.py':
 'dev_appserv
 er_main.py'}, '__builtins__': module '__builtin__' (built-in),
 '__file__': 'E:
 \\google_appengine\\dev_appserver.py', 'script_name':
 'dev_appserver_main.py', '
 DIR_PATH': 'E:\\google_appengine', 'sys': module 'sys' (built-in),
 'SCRIPT_DIR
 ': 'E:\\google_appengine\\google\\appengine\\tools', 'EXTRA_PATHS':
 ['E:\\google
 _appengine', 'E:\\google_appengine\\lib\\django', 'E:\\google_appengine
 \\lib\\we
 bob', 'E:\\google_appengine\\lib\\yaml\\lib'], '__name__': '__main__',
 'script_p
 ath': 'E:\\google_appengine\\google\\appengine\\tools\
 \dev_appserver_main.py', '
 os': module 'os' from 'C:\Python25\lib\os.pyc', '__doc__':
 'Convenience wrappe
 r for starting an appengine tool.'}
 ['E:\\google_appengine\\dev_appserver.py', 'epihourtesting2']
 Traceback (most recent call last):
   File E:\google_appengine\dev_appserver.py, line 59, in module
     execfile(script_path, globals())
   File E:\google_appengine\google\appengine\tools
 \dev_appserver_main.py, line
 358, in module
     sys.exit(main(sys.argv))
   File E:\google_appengine\google\appengine\tools
 \dev_appserver_main.py, line
 316, in main
     server = MakeRpcServer(option_dict)
   File E:\google_appengine\google\appengine\tools
 \dev_appserver_main.py, line
 274, in MakeRpcServer
     server = appcfg.HttpRpcServer(
 AttributeError: 'module' object has no attribute 'HttpRpcServer'

 C:\Users\Chook\Documents\Eclipse\workspace\tvepisodes\server

 I will try Reinstalling...

 On Mar 6, 8:13 am, Sumit Bando sumit.ba...@gmail.com wrote:



  I have been using 1.1.8  on Windows 7 for a month, so your problem is
  likely something else.

  Good luck.

  Sumit

  On Mar 5, 3:28 pm, David Wilson d...@botanicus.net wrote:

   Hi Chen,

   Please post the full text of the traceback you received. Have you
   tried reinstalling the SDK? Do you by any chance have a module called
   appengine_rpc anywhere in your application, or sys.path?

   David.

   2009/3/5 Chen Harel chook.ha...@gmail.com:

AttributeError: 'module' object has no attribute 'HttpRpcServer'

I'm getting this error message while trying dev_appserver.py on a
project that is working in vista
(Although in vista I used 1.1.7 and now in Windows 7 I use 1.19)
Python is 2.5.4 x64

Please assist, what can cause this error

   --
   It is better to be wrong than to be vague.
     — Freeman Dyson
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[google-appengine] Re: Windows 7 - can't run appengine sdk

[Chen Harel]

Ok, I've installed my old 1.1.7 on a different folder and it works.
So this is a 1.1.9 issue.

On Mar 6, 11:53 am, Chen Harel chook.ha...@gmail.com wrote:
 Reinstalling didn't help,
 Could this be caused by a Python issue?

 On Mar 6, 10:59 am, Chen Harel chook.ha...@gmail.com wrote:



  Hi, Here is the full traceback:

  C:\Users\Chook\Documents\Eclipse\workspace\tvepisodes
  \serverdev_appserver.py ep
  ihourtesting2
  dir: E:\google_appengine
  script: E:\google_appengine\google\appengine\tools
  name: __main__
  scipt_name: dev_appserver_main.py
  script_path: E:\google_appengine\google\appengine\tools
  \dev_appserver_main.py
  {'version_tuple': (2, 5), 'SCRIPT_EXCEPTIONS': {'dev_appserver.py':
  'dev_appserv
  er_main.py'}, '__builtins__': module '__builtin__' (built-in),
  '__file__': 'E:
  \\google_appengine\\dev_appserver.py', 'script_name':
  'dev_appserver_main.py', '
  DIR_PATH': 'E:\\google_appengine', 'sys': module 'sys' (built-in),
  'SCRIPT_DIR
  ': 'E:\\google_appengine\\google\\appengine\\tools', 'EXTRA_PATHS':
  ['E:\\google
  _appengine', 'E:\\google_appengine\\lib\\django', 'E:\\google_appengine
  \\lib\\we
  bob', 'E:\\google_appengine\\lib\\yaml\\lib'], '__name__': '__main__',
  'script_p
  ath': 'E:\\google_appengine\\google\\appengine\\tools\
  \dev_appserver_main.py', '
  os': module 'os' from 'C:\Python25\lib\os.pyc', '__doc__':
  'Convenience wrappe
  r for starting an appengine tool.'}
  ['E:\\google_appengine\\dev_appserver.py', 'epihourtesting2']
  Traceback (most recent call last):
    File E:\google_appengine\dev_appserver.py, line 59, in module
      execfile(script_path, globals())
    File E:\google_appengine\google\appengine\tools
  \dev_appserver_main.py, line
  358, in module
      sys.exit(main(sys.argv))
    File E:\google_appengine\google\appengine\tools
  \dev_appserver_main.py, line
  316, in main
      server = MakeRpcServer(option_dict)
    File E:\google_appengine\google\appengine\tools
  \dev_appserver_main.py, line
  274, in MakeRpcServer
      server = appcfg.HttpRpcServer(
  AttributeError: 'module' object has no attribute 'HttpRpcServer'

  C:\Users\Chook\Documents\Eclipse\workspace\tvepisodes\server

  I will try Reinstalling...

  On Mar 6, 8:13 am, Sumit Bando sumit.ba...@gmail.com wrote:

   I have been using 1.1.8  on Windows 7 for a month, so your problem is
   likely something else.

   Good luck.

   Sumit

   On Mar 5, 3:28 pm, David Wilson d...@botanicus.net wrote:

Hi Chen,

Please post the full text of the traceback you received. Have you
tried reinstalling the SDK? Do you by any chance have a module called
appengine_rpc anywhere in your application, or sys.path?

David.

2009/3/5 Chen Harel chook.ha...@gmail.com:

 AttributeError: 'module' object has no attribute 'HttpRpcServer'

 I'm getting this error message while trying dev_appserver.py on a
 project that is working in vista
 (Although in vista I used 1.1.7 and now in Windows 7 I use 1.19)
 Python is 2.5.4 x64

 Please assist, what can cause this error

--
It is better to be wrong than to be vague.
  — Freeman Dyson
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[google-appengine] What's wrong with this??

[arnie]

Using django templates, I am creating a very simple web application.
Everything goes well the only problem that I am facing is that the
html page is rendered but with no css applied on it no formatting
appears. The page appears as a very simple html with no formatting at
all. When i double click on the respective html then it displayes with
complete formatting and relevant styles.
I have also added a
url: /media
 static_dir: /templates/media

the media folder contains all the arwork [css files, images] used in
the template html files

What is going wrong here?
Thanks
Arnie

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[google-appengine] Converting model objects to JSON

[Devraj Mukherjee]

Hi all,

Quick question about converting model objects in JSON. Have done some
reading and I can't find a way to use simplejson to serialize model
objects because the data types don't support it.

What is the best way to convert a model to json?

Thanks.

-- 
The secret impresses no-one, the trick you use it for is everything
- Alfred Borden (The Prestiege)

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[google-appengine] Re: Converting model objects to JSON

[Amr Ellafi]

check this http://deron.meranda.us/python/comparing_json_modules/
you will have to stuck with a pure python library

On Fri, Mar 6, 2009 at 1:28 PM, Devraj Mukherjee dev...@gmail.com wrote:


 Hi all,

 Quick question about converting model objects in JSON. Have done some
 reading and I can't find a way to use simplejson to serialize model
 objects because the data types don't support it.

 What is the best way to convert a model to json?

 Thanks.

 --
 The secret impresses no-one, the trick you use it for is everything
 - Alfred Borden (The Prestiege)

 


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[google-appengine] Re: What's wrong with this??

[Amr Ellafi]

I think setting Template directory to static is the issue here, static
content will not be handled by Django.

On Fri, Mar 6, 2009 at 12:48 PM, arnie parvez...@rediffmail.com wrote:


 Using django templates, I am creating a very simple web application.
 Everything goes well the only problem that I am facing is that the
 html page is rendered but with no css applied on it no formatting
 appears. The page appears as a very simple html with no formatting at
 all. When i double click on the respective html then it displayes with
 complete formatting and relevant styles.
 I have also added a
 url: /media
  static_dir: /templates/media

 the media folder contains all the arwork [css files, images] used in
 the template html files

 What is going wrong here?
 Thanks
 Arnie

 


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[google-appengine] Re: cooperate with top Google Apps Engine developer

[Amr Ellafi]

I'm offering my services ! paid of course :)

On Thu, Mar 5, 2009 at 3:30 PM, dalenewman dalenew...@gmail.com wrote:


 Alex,

 You should use oDesk ( www.odesk.com ) for this.  One catch though --
 you'll have to pay the developers :-)

 Dale
 www.bookdope.com






 


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[google-appengine] Re: cooperate with top Google Apps Engine developer

[Kajikawa Jeremy]

Im available through odesk for work such as this already,

only catch is limited time for completion before I would no longer be
available.

Jeremy


On Fri, 2009-03-06 at 14:07 +0200, Amr Ellafi wrote:
 I'm offering my services ! paid of course :)
 
 On Thu, Mar 5, 2009 at 3:30 PM, dalenewman dalenew...@gmail.com
 wrote:
 
 Alex,
 
 You should use oDesk ( www.odesk.com ) for this.  One catch
 though --
 you'll have to pay the developers :-)
 
 Dale
 www.bookdope.com
 
 
 
 
 
 
 
 
 
 
 
 
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[google-appengine] Get deployed app version at runtime?

[Jarek Zgoda]

Is there any possibility to get full application version at runtime
(not only major version from app.yaml)? I'm thinking of making
memcache keys versioned by something that changes on every deployment
and the app version seems to be obvious choice...

Cheers
J.
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[google-appengine] Re: What's wrong with this??

[arnie]

I have moved the media folder [that contains all css, images etc] out
of the templates directory
still the same problem
now my app.yaml is like this
handlers:
- url: /media
  static_dir: media
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[google-appengine] Re: Get deployed app version at runtime?

[Duncan]

On Mar 6, 1:00 pm, Jarek Zgoda jarek.zg...@gmail.com wrote:
 Is there any possibility to get full application version at runtime
 (not only major version from app.yaml)? I'm thinking of making
 memcache keys versioned by something that changes on every deployment
 and the app version seems to be obvious choice...

You can look at the current directory.

See 
http://groups.google.com/group/google-appengine/browse_thread/thread/548debabf6285f9/245b47e68e860452#245b47e68e860452

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[google-appengine] Re: a fundamental increase in App Engine transparency and locality is needed

[peterk]

It's an interesting issue...I think we're all happy for things to
behave pretty much like a black box when stuff is working as it's
meant to, but are we so happy with that when things aren't working?

Personally I don't need to know who specifically is responsible for
the machines my apps run on, to be able to contact them directly etc.
And I don't think that's really a viable option.

However, I agree more feedback on causes and fix schedules when things
go south would be good, along with frequent updates. I think 'naming
and shaming' Google on infrastructure let downs, on your app, would be
an option for you too, to lay the responsibility with Google.
Significant issues, particularly on popular apps with decent
visibility, are surely embarassing for Google given their reputation.
Serving them a dose of that embarassment by telling your visitors 1)
we're Google's infrastructure, 2) they're having problems right now,
would probably give Google more incentive to avoid repetition of these
issues.. :) If a number of popular apps were frequently reporting
issues with Google, word about that would get around.

From listening to talks from GAE folk though, I get the impression
stability is of paramount importance..so I'm hopeful issues like those
recently will be exceptions.

On Mar 6, 2:24 am, dsw daniel.wilker...@gmail.com wrote:
 I have long wanted to build apps on Google App Engine and have learned
 a lot about it in preparation for doing so.  However the one problem
 is if I have a customer and their app goes down for an hour and they
 call me and say what happened? and how can we prevent that in the
 future? my only response will be I don't know and we can't.
 These are unacceptable answers.

 If you want App Engine to cross the chasm and become really for real
 then at the very least what you need to do is provide the kind of
 depth of sight into your infrastructure that you the Google engineers
 have.  Further you need some kind of locality in the cloud: it would
 help if there were some way of ensuring reliability by knowing that
 (1) I have bought space on some particular cluster of machines (2)
 which is now stable and more apps are not being added to it; I should
 know (3) who is maintaining that cluster and (4) be able to send them
 a trouble ticket and (5) have some idea of what is wrong and how long
 it is going to take them to fix it.

 This opaque cloud utility of compute stuff is a fantasy: some locality
 and transparency will be needed or App Engine will never be really for
 real.
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[google-appengine] Re: Get deployed app version at runtime?

[Steve Robillard]

J

You can retrieve it using the method on this page 
http://code.google.com/appengine/docs/python/runtime.html
Near the bottom is the code needed

HTH
Steve

-Original Message-
From: google-appengine@googlegroups.com
[mailto:google-appeng...@googlegroups.com] On Behalf Of Jarek Zgoda
Sent: Friday, March 06, 2009 8:01 AM
To: Google App Engine
Subject: [google-appengine] Get deployed app version at runtime?


Is there any possibility to get full application version at runtime (not
only major version from app.yaml)? I'm thinking of making memcache keys
versioned by something that changes on every deployment and the app version
seems to be obvious choice...

Cheers
J.


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[google-appengine] Re: What's wrong with this??

[arnie]

I have moved the media folder [that contains all css, images etc] out
of the templates directory
still the same problem
now my app.yaml is like this
handlers:
- url: /media
  static_dir: media
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[google-appengine] Re: Query latency is not resolved

[Sylvain]

I agree, the latency is higher than last week before the upgradre.
One of my handler is still 1k ms-cpu higher.

Regards

On Mar 6, 10:45 am, GregF g.fawc...@gmail.com wrote:
 Don't take my word for it - that was just what I see happening.
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[google-appengine] Re: What's wrong with this??

[Gipsy Gopinathan]

How are you linking your css in you template? probably something messed up
there.Did you checked the html source generated and verified the css link is
working by directly accessing it?

cheers
gipsy

On Fri, Mar 6, 2009 at 7:49 AM, arnie parvez...@rediffmail.com wrote:


 I have moved the media folder [that contains all css, images etc] out
 of the templates directory
 still the same problem
 now my app.yaml is like this
 handlers:
 - url: /media
  static_dir: media
 



-- 
cheers
Gipsy

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[google-appengine] Re: What's wrong with this??

[Gipsy Gopinathan]

Most likely you are missing a '/' in front of the css link   like
'/media/yourcss.css'  versus 'media/yourcss.css'

On Fri, Mar 6, 2009 at 8:05 AM, Gipsy Gopinathan gipsy.ra...@gmail.comwrote:

 How are you linking your css in you template? probably something messed up
 there.Did you checked the html source generated and verified the css link
 is working by directly accessing it?

 cheers
 gipsy


 On Fri, Mar 6, 2009 at 7:49 AM, arnie parvez...@rediffmail.com wrote:


 I have moved the media folder [that contains all css, images etc] out
 of the templates directory
 still the same problem
 now my app.yaml is like this
 handlers:
 - url: /media
  static_dir: media
 



 --
 cheers
 Gipsy




-- 
cheers
Gipsy

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[google-appengine] Are entities returned by value or by reference?

[solidus]

Hello,

In my code I have two variables that point to an entity that is the
result of some query. I then modify some of the properties using one
of the variables and then call put() on that variable. These changes
do not propagate to the 2nd variable that was pointing to that entity.
This leads me to believe that these are just copies of the underlying
datastore record and not references. Is this correct?

What's the best practice when it comes to things like this?

i.e., I have a session variable that is a datastore entity with all
the user's info. Some parts of my site may make changes to this entity
and update the datastore, but the session entity does not see these
changes unless I re-query the datastore.

Thanks.
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[google-appengine] Re: Get deployed app version at runtime?

[Jarek Zgoda]

Thank you.

On 6 Mar, 14:45, Steve Robillard steverobill...@gmail.com wrote:
 J

 You can retrieve it using the method on this 
 pagehttp://code.google.com/appengine/docs/python/runtime.html
 Near the bottom is the code needed

 HTH
 Steve

 -Original Message-
 From: google-appengine@googlegroups.com

 [mailto:google-appeng...@googlegroups.com] On Behalf Of Jarek Zgoda
 Sent: Friday, March 06, 2009 8:01 AM
 To: Google App Engine
 Subject: [google-appengine] Get deployed app version at runtime?

 Is there any possibility to get full application version at runtime (not
 only major version from app.yaml)? I'm thinking of making memcache keys
 versioned by something that changes on every deployment and the app version
 seems to be obvious choice...

 Cheers
 J.
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[google-appengine] Random 502 errors

[Arun Shanker Prasad]

Hi,

I saw the post saying that all the issues were resolved only a little
latency issues remain..

But this is no the case for my application I have be getting random
502 (Bad Gateway errors) from the get go.. Now the frequency for these
errors have gone up At the time of this post I was not able to get
any request through to a particular page in my app (the function in
this page was added recently, if that has anything to do with the
issue).

Any help or follow-up will be greatly appreciated.

There is another similar scheduled update on Monday (I am keeping my
fingers crossed for this one).

Thanks,
Arun Shanker Prasad.
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[google-appengine] Re: Query latency is not resolved

[Sylvain]

Another thing : even the Dashboard is slower.
And since this morning it is more and more slow, particularly when you
click on the '+' in the log.

On Mar 6, 2:56 pm, Sylvain sylvain.viv...@gmail.com wrote:
 I agree, the latency is higher than last week before the upgradre.
 One of my handler is still 1k ms-cpu higher.

 Regards

 On Mar 6, 10:45 am, GregF g.fawc...@gmail.com wrote:

  Don't take my word for it - that was just what I see happening.
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[google-appengine] Re: query vs filter()

[Devel63]

I don't know what you mean about running a loop of filter calls, but
something like Class.all().filter().filter()... is very efficient.  My
impression is that the GQL interpretation is slightly more expensive,
but that the difference is negligible.

Note that the call to the data store does not occur until you actually
issue the fetch or get ... and this is what's really expensive.

On Mar 5, 4:44 pm, pedepy paul.ro...@gmail.com wrote:
 is there any difference in performance to use a single query call
 (like in, WHERE prop = value AND prop = value, etc vs running a loop
 of filter() calls and then executing the query ?

 seems to me that if you can build your query all in one shot, you can
 avoid one or many loop(s) in your code ... but everyone seems to be
 all about using all().filter() these days ..

 help?
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[google-appengine] Re: cooperate with top Google Apps Engine developer

[Ben]

On Mar 6, 12:30 am, dalenewman dalenew...@gmail.com wrote:
 Alex,

 You should use oDesk (www.odesk.com) for this.  One catch though --
 you'll have to pay the developers :-)


... if you can call $2/hr getting payed. oDesk is a joke.

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[google-appengine] Datastore Timeouts ( large amount of data per row )

[gobagoo]

I understand that there have been recent problems with latency with
regards to the datastore.  I am not sure if it is the app engine
environment that is the problem or if is my app.  I am consistently
getting datastore timeouts for certain querys.  My app is storing
farely large image files ~500KB each in the datastore.  Since I want
my user to by upload images files dynamically, putting them in the
datastore seems to be the only way of doing this.  I have around 80
images in the datastore currently.  I looked into only fetch'ing() a
certain limit at a time and then incrementing offset however the
datastore still fetch's a constant number of rows from the datastore.
Is there anyway around this problem ( or perhaps a better way of
handling this ).

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[google-appengine] Re: pytz and astimezone

[Adam Tistler]

I am no where near 1000 files.


Adam Tistler
1(732)718-2631
atist...@gmail.com



On Mar 6, 2009, at 1:59 AM, Tim Hoffman wrote:


 HI

 The main thing to watch is the number of files in the fill pytz
 distribution,
 if you software stack also has a lot fo files you find youself over
 the 1000 file limit

 T

 On Mar 6, 9:17 am, Stephen Judd judd.step...@gmail.com wrote:
 I downloaded it and import it for Mashical.com without a problem.  It
 probably adds some overhead at startup, but it's an invaluable  
 utility if
 your dealing with multiple timezones.

 Steve

 On Thu, Mar 5, 2009 at 6:34 PM, Tim Hoffman zutes...@gmail.com  
 wrote:

 Hi

 You can't probably can't  just download and include it with your
 project as it has too many files in the module.

 Have a look at this.
 http://takashi-matsuo.blogspot.com/2008/07/using-zipped-pytz-on-gae.html

 Rgds

 T

 On Mar 6, 6:29 am, andrew andrew.r...@gmail.com wrote:
 Any idea on how to include it with appengine?

 On Mar 5, 3:59 am, Tim Hoffman zutes...@gmail.com wrote:

 pytz isn't included with python or gae, you will need to get the
 package from pypi

 T

 On Mar 5, 10:34 am, andrew andrew.r...@gmail.com wrote:

 I was able to convert the datetime timezone from the datastore  
 to EST
 by following thehttp://timezones.appspot.com/

 for example:
 event.date =
 event.date.replace(tzinfo=TZINFOS
 ['utc'])
 event.date =  
 event.date.astimezone(TZINFOS
 ['est'])

 This works great, however I noticed that EST is hardcoded to  
 UTC-5:

 def utcoffset(self, dt): return datetime.timedelta(hours=-5)

 So when spring rolls around and we are in daylight savings, I'm  
 going
 to have to update the code to UTC-4, or my time will be off by an
 hour.

 It seems that pytz would solve this problem but I couldn't  
 figure out
 how to import it into my application.  I tried

 import pytz

 but got error type 'exceptions.ImportError': No module named  
 pytz

 Any suggestions?  Thanks
 


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[google-appengine] How to read URL path values as parameter

[kshah]

I wanted to use
http://xyz.appspot.com/process/chicago/il
URL instead of
http://xyz.appspot.com/process?city=chicagostate=il

How do I convert these path values as GET parameters?

Thanks!

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[google-appengine] Re: Are entities returned by value or by reference?

[Andy Freeman]

 In my code I have two variables that point to an entity that is the
 result of some query.

How do you get those two variables?

Did you do:

v1 = {some query/get}
v2 = v1

or

v1 = {some query/get}
v2 = {some query/get}

In the first case, v1 and v2 are pointing to the same db.Model
instance.  Changing something via v1 will be visible via v2 (as long
as you don't assign to either v1 or v2).

In the second case, v1 and v2 are pointing to different db.Model
instances.  Changing something via v1 will not change the instance
pointed to by v2.

Be sure that you understand why I'm writing db.Model instance and
not datastore entity.  Queries and db.get copy datastore entities
into db.Model instances which you can then manipulate.  Put copies
db.Model instances into the datastore as entities.  It's important to
realize that entities and db.Model instances can change independently
of one another.


On Mar 6, 6:58 am, solidus e.smolens...@gmail.com wrote:
 Hello,

 In my code I have two variables that point to an entity that is the
 result of some query. I then modify some of the properties using one
 of the variables and then call put() on that variable. These changes
 do not propagate to the 2nd variable that was pointing to that entity.
 This leads me to believe that these are just copies of the underlying
 datastore record and not references. Is this correct?

 What's the best practice when it comes to things like this?

 i.e., I have a session variable that is a datastore entity with all
 the user's info. Some parts of my site may make changes to this entity
 and update the datastore, but the session entity does not see these
 changes unless I re-query the datastore.

 Thanks.
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[google-appengine] Re: How to read URL path values as parameter

[Bryan A. Pendleton]

You have (at least) 2 options:

1) Use the regexp in webapp to extract them, ie, your URL mapping:

(/process/([^/]+)/([^/]+),MyProcessHandler),
...

Then MyProcessHandler.get() will get called with two extra arguments,
one set to each of the groups in the regexp

2) Parse path_info yourself. It's handed in as part of the webapp at
self.request.path_info


On Mar 6, 10:04 am, kshah kunal.software.engin...@gmail.com wrote:
 I wanted to usehttp://xyz.appspot.com/process/chicago/il
 URL instead ofhttp://xyz.appspot.com/process?city=chicagostate=il

 How do I convert these path values as GET parameters?

 Thanks!
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[google-appengine] Re: HTTPS pages with some unencrypted information

[OliWeiD]

As my pages are still very simple, there was no media tab within Tools-
page info,
but some maybe-useful stuff in the page info, thanks for the hint.
Also working with the firebug hasn't found me the error.

I even had a file without javascript, where I had the issue. And
within the comparison
with pages without that issue I found it: the css file and the
javascript file
are coming from a static directory, after a secure: always into the
app.yaml
the error has vanished.

thanks for the hints nevertheless, I've learnd more about firefox
today ;-)

On 6 Mrz., 09:08, bd_ bdon...@gmail.com wrote:
 On Mar 6, 1:22 am, OliWeiD oliver.weimar.dr...@googlemail.com wrote:

  Hi,

  I have setup some pages in app.yaml with secure: always and some few
  are getting the following warn message in e.g. Firefox (IE7 is
  similar):
  You have requested an encrypted page that contains some unencrypted
  information. Information that you see or enter on this page could
  easily be read by a third party.

  Is there a plug in or something to identify, which elements are
  unencrypted?
  Or a list of hints to check?

 Tools-page info-media
 Look for anything not coming through https.
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[google-appengine] Re: accepting user url link as input and making it a clickable link

[niklas]

an understandable trivial example with pure gae (no additional django
patch needed just a recent sdk):
.py:
path = os.path.join(os.path.dirname(__file__), 'directory',
'detail.html')
a='www.google.com'
self.response.out.write(template.render(path, {'a':a,

...othervariables

detail.html:
{{a|urlize}}

urlize should be no problem provided the variable's value with the
link is set. it will complete.
regards
Niklas Stockholm

On Mar 6, 7:03 pm, thebrianschott schott.br...@gmail.com wrote:
 Andrew and Niklas,

 I only now got around to trying the Django {{urlize}} b/c I just read
 these replies. I incorrectly thought I had asked replies to come to my
 email, so I did not notice your replies earlier. {{urlize}}  messed up
 my SDK version of the app, but that may be because I have not upgraded
 my SDK for a couple of months. I'll try again later. What happened is
 the application just slowed to a halt and after a long delay (20
 minutes?) it finally finished without having urlized.

 Brian in Atlanta
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[google-appengine] Re: a fundamental increase in App Engine transparency and locality is needed

[Jon McAlister]

This is a very interesting thread. And yes, indeed, cluster stability
and uptime and transparency are all of the utmost importance to us
here on the App Engine team.

I also agree that a fundamental increase in transparency would serve
everyone's interests.

As far as I can tell, transparency through a crisis occurs in one of
three ways: (a) direct communication, (b) broadcasts of pr-approved
messages, and (c) raw data.

As an engineer, I like (c) more than (a) or (b). It's objective, and
it can be distributed more efficiently. It's more efficient than (b)
because we don't have to wordsmith it or get it reviewed and approved,
it just goes out immediately. It's more efficient than (a) because it
happens automatically; you don't take up the time of an engineer who
would otherwise be busy trying to solve the problem.

This is why our team has made it a priority to be very transparent
about real time and detailed performance data with our Status Site:
http://code.google.com/status/appengine. I encourage everyone who
cares about their application to spend a bit of time learning that
site. Make sure to click through to the detailed graphs as well.
Further, if there is more data you would like us to export, then let
us know. It is in everyone's best interests for us to export more raw
data.

It is my personal belief that by continuing to iterate and improve
upon our Status Site that we will achieve the fundamental increase in
transparency, as opposed to Daniel's proposal of dedicated hardware,
direct communication, and promises as to when problems will be fixed.
Although, Daniel does bring up the excellent point that there is not a
particularly efficient way for developers to report live production
problems other than this group. Any thoughts on systems that we should
look into here to make this more efficient?

Jon

On Fri, Mar 6, 2009 at 9:25 AM, johnP j...@thinkwave.com wrote:

 My experience has shown that customers are generally OK with a
 response:  There is a problem.  We are aware of it and people are
 working on it.  It is estimated to be resolved in X time.

 So if we (as vendors) are able to act as a positive PR army for
 AppEngine, we need to be quickly armed with the data necessary to
 accurately answer the above questions.

 If vendors (on the front lines of PR Triage) don't have this data, a
 blame-game will start.  No, we have no %$#$% idea what's wrong.  No -
 those #$$#^%$ are not saying anything.  Etc.

 So far, I'd say the following.  Google has been almost good about
 keeping the information flowing.  There have been periods of 'radio
 silence'; and the official status report usually reports that There
 has been an anomaly but we have determined that nobody was affected
 (am I a nobody?).  But overall, they have responded.  And have
 resolved issues.  And have upgraded the product.  And in the end, have
 built something really special.

 And I agree with Greg about sleeping at night.

 johnP



 On Mar 6, 5:42 am, peterk peter.ke...@gmail.com wrote:
 It's an interesting issue...I think we're all happy for things to
 behave pretty much like a black box when stuff is working as it's
 meant to, but are we so happy with that when things aren't working?

 Personally I don't need to know who specifically is responsible for
 the machines my apps run on, to be able to contact them directly etc.
 And I don't think that's really a viable option.

 However, I agree more feedback on causes and fix schedules when things
 go south would be good, along with frequent updates. I think 'naming
 and shaming' Google on infrastructure let downs, on your app, would be
 an option for you too, to lay the responsibility with Google.
 Significant issues, particularly on popular apps with decent
 visibility, are surely embarassing for Google given their reputation.
 Serving them a dose of that embarassment by telling your visitors 1)
 we're Google's infrastructure, 2) they're having problems right now,
 would probably give Google more incentive to avoid repetition of these
 issues.. :) If a number of popular apps were frequently reporting
 issues with Google, word about that would get around.

 From listening to talks from GAE folk though, I get the impression
 stability is of paramount importance..so I'm hopeful issues like those
 recently will be exceptions.

 On Mar 6, 2:24 am, dsw daniel.wilker...@gmail.com wrote:

  I have long wanted to build apps on Google App Engine and have learned
  a lot about it in preparation for doing so.  However the one problem
  is if I have a customer and their app goes down for an hour and they
  call me and say what happened? and how can we prevent that in the
  future? my only response will be I don't know and we can't.
  These are unacceptable answers.

  If you want App Engine to cross the chasm and become really for real
  then at the very least what you need to do is provide the kind of
  depth of sight into your infrastructure that you the Google engineers
  have.  Further 

[google-appengine] Latency problem still really a problem

[cz]

Our app is still experiencing at least double the latency as compared
to last week and the app is basically unusable. I'm really concerned
about this since the GAE team has stated that the latency issue has
been resolved.
This is so disappointing if the current performance is considered to
be fine. I'm really hoping that this isn't the case.

I'm curious as to how you are testing latency internally? Perhaps the
tests aren't reflecting very well some real world scenarios and that
some combination of datastore operations are particularly onerous.

In any case, latency is still much much worse than before the server
maintenance.

P.S. also getting random 502 errors which I assume is related to this
issue: 
http://groups.google.com/group/google-appengine/browse_thread/thread/391a6ecc2febfc22/f43d82010fb1b598
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[google-appengine] Re: a fundamental increase in App Engine transparency and locality is needed

[Bryan A. Pendleton]

Jon,

I think we'd all agree that an automatically published report is
better than a), or b). However, because there's Secret Sauce running
behind App Engine, surely a myriad of infrastructure details that
you'll never be allowed to publish detailed data on, c) will also
probably never be enough.

Or, well, I'll ask the question: what infrastructure was involved in
the most recent maintenance, and what about its performance
characteristics changed? Measuring/publishing various reports that we
all *could* generate ourselves *is* helpful, but what of the behind
the scenes stuff that can break?

Based on increases in latency, I could come up with all kinds of
explanations (I've worked with Hadoop for a number of years, so I know
of the general types of odd conditions that come up with a cluster of
machines attempting to work in concert but managed by failure-tolerant
software). Did a network switch fail that caused a large fraction of
the DataStore nodes to become unreachable? If so, would you ever be
willing to publish switch performance analytics as part of the App
Engine health status? Or, more generally, was it something
misconfigured or that just doesn't perform as well as predicted? If
misconfigured, can it be hot-updated, or is another downtime necessary
to repair the mistake?

The discussion of dedicated clusters does bring up a related question:
Google apparently does have some cluster update process, as evidenced
by the way features roll out to different users of Gmail at different
rates. I assume, based on everything we've been (not) told about
AppEngine, that AppEngine is essentially running as one single
instance of whatever granularity Gmail and similar apps are maintained
at Google. Could it be split into several? Then, presumably,
maintenance and upgrade periods could be scheduled somewhat
independently for different pools.

Ok, enough conjecture on my part. My point is, I think a PR-sanitized
message is going to still be necessary unless you guys truly disclose
the inner workings of the infrastructure that provides AppEngine,
which seems unlikely to ever completely happen.

-Bryan

On Mar 6, 2:37 pm, Jon McAlister jon...@google.com wrote:
 This is a very interesting thread. And yes, indeed, cluster stability
 and uptime and transparency are all of the utmost importance to us
 here on the App Engine team.

 I also agree that a fundamental increase in transparency would serve
 everyone's interests.

 As far as I can tell, transparency through a crisis occurs in one of
 three ways: (a) direct communication, (b) broadcasts of pr-approved
 messages, and (c) raw data.

 As an engineer, I like (c) more than (a) or (b). It's objective, and
 it can be distributed more efficiently. It's more efficient than (b)
 because we don't have to wordsmith it or get it reviewed and approved,
 it just goes out immediately. It's more efficient than (a) because it
 happens automatically; you don't take up the time of an engineer who
 would otherwise be busy trying to solve the problem.

 This is why our team has made it a priority to be very transparent
 about real time and detailed performance data with our Status 
 Site:http://code.google.com/status/appengine. I encourage everyone who
 cares about their application to spend a bit of time learning that
 site. Make sure to click through to the detailed graphs as well.
 Further, if there is more data you would like us to export, then let
 us know. It is in everyone's best interests for us to export more raw
 data.

 It is my personal belief that by continuing to iterate and improve
 upon our Status Site that we will achieve the fundamental increase in
 transparency, as opposed to Daniel's proposal of dedicated hardware,
 direct communication, and promises as to when problems will be fixed.
 Although, Daniel does bring up the excellent point that there is not a
 particularly efficient way for developers to report live production
 problems other than this group. Any thoughts on systems that we should
 look into here to make this more efficient?

 Jon



 On Fri, Mar 6, 2009 at 9:25 AM, johnP j...@thinkwave.com wrote:

  My experience has shown that customers are generally OK with a
  response:  There is a problem.  We are aware of it and people are
  working on it.  It is estimated to be resolved in X time.

  So if we (as vendors) are able to act as a positive PR army for
  AppEngine, we need to be quickly armed with the data necessary to
  accurately answer the above questions.

  If vendors (on the front lines of PR Triage) don't have this data, a
  blame-game will start.  No, we have no %$#$% idea what's wrong.  No -
  those #$$#^%$ are not saying anything.  Etc.

  So far, I'd say the following.  Google has been almost good about
  keeping the information flowing.  There have been periods of 'radio
  silence'; and the official status report usually reports that There
  has been an anomaly but we have determined that nobody was affected
  (am I a nobody?).  But 

[google-appengine] Re: a fundamental increase in App Engine transparency and locality is needed

[Steve Robillard]

Jon,

I agree and would add that publishing raw data would also require some
educational resource for those of us who are not network or system engineers

Steve

-Original Message-

From: google-appengine@googlegroups.com

[ mailto:google-appengine@googlegroups.com
mailto:google-appeng...@googlegroups.com] On Behalf Of Bryan A. Pendleton

Sent: Friday, March 06, 2009 3:17 PM

To: Google App Engine

Subject: [google-appengine] Re: a fundamental increase in App Engine
transparency and locality is needed

 

Jon,

I think we'd all agree that an automatically published report is better than
a), or b). However, because there's Secret Sauce running behind App Engine,
surely a myriad of infrastructure details that you'll never be allowed to
publish detailed data on, c) will also probably never be enough.

Or, well, I'll ask the question: what infrastructure was involved in the
most recent maintenance, and what about its performance characteristics
changed? Measuring/publishing various reports that we all *could* generate
ourselves *is* helpful, but what of the behind the scenes stuff that can
break?

Based on increases in latency, I could come up with all kinds of
explanations (I've worked with Hadoop for a number of years, so I know of
the general types of odd conditions that come up with a cluster of machines
attempting to work in concert but managed by failure-tolerant software). Did
a network switch fail that caused a large fraction of the DataStore nodes to
become unreachable? If so, would you ever be willing to publish switch
performance analytics as part of the App Engine health status? Or, more
generally, was it something misconfigured or that just doesn't perform as
well as predicted? If misconfigured, can it be hot-updated, or is another
downtime necessary to repair the mistake?

The discussion of dedicated clusters does bring up a related question:

Google apparently does have some cluster update process, as evidenced by the
way features roll out to different users of Gmail at different rates. I
assume, based on everything we've been (not) told about AppEngine, that
AppEngine is essentially running as one single instance of whatever
granularity Gmail and similar apps are maintained at Google. Could it be
split into several? Then, presumably, maintenance and upgrade periods could
be scheduled somewhat independently for different pools.

Ok, enough conjecture on my part. My point is, I think a PR-sanitized
message is going to still be necessary unless you guys truly disclose the
inner workings of the infrastructure that provides AppEngine, which seems
unlikely to ever completely happen.

-Bryan

On Mar 6, 2:37 pm, Jon McAlister jon...@google.com wrote:

 This is a very interesting thread. And yes, indeed, cluster stability 

 and uptime and transparency are all of the utmost importance to us 

 here on the App Engine team.



 I also agree that a fundamental increase in transparency would serve 

 everyone's interests.



 As far as I can tell, transparency through a crisis occurs in one of 

 three ways: (a) direct communication, (b) broadcasts of pr-approved 

 messages, and (c) raw data.



 As an engineer, I like (c) more than (a) or (b). It's objective, and 

 it can be distributed more efficiently. It's more efficient than (b) 

 because we don't have to wordsmith it or get it reviewed and approved, 

 it just goes out immediately. It's more efficient than (a) because it 

 happens automatically; you don't take up the time of an engineer who 

 would otherwise be busy trying to solve the problem.



 This is why our team has made it a priority to be very transparent 

 about real time and detailed performance data with our Status 

 Site:http://code.google.com/status/appengine. I encourage everyone who 

 cares about their application to spend a bit of time learning that site.

Make sure to click through to the detailed graphs as well.

 Further, if there is more data you would like us to export, then let 

 us know. It is in everyone's best interests for us to export more raw 

 data.



 It is my personal belief that by continuing to iterate and improve 

 upon our Status Site that we will achieve the fundamental increase in 

 transparency, as opposed to Daniel's proposal of dedicated hardware, 

 direct communication, and promises as to when problems will be fixed.

 Although, Daniel does bring up the excellent point that there is not a 

 particularly efficient way for developers to report live production 

 problems other than this group. Any thoughts on systems that we should 

 look into here to make this more efficient?



 Jon







 On Fri, Mar 6, 2009 at 9:25 AM, johnP j...@thinkwave.com wrote:



  My experience has shown that customers are generally OK with a

  response:  There is a problem.  We are aware of it and people are 

  working on it.  It is estimated to be resolved in X time.



  So if we (as vendors) are able to act as a positive PR army for 

  AppEngine, we 

[google-appengine] Re: Initializing datastore with binary data

[Pavel Byles]

I have no idea why I'm getting errors when I do:
 import helloworld
 from google.appengine.ext import db
 entries = helloworld.Greeting.all().order(-date).fetch(10)

and my app.yaml contains:
- url: /remote_api
  script: $PYTHON_LIB/google/appengine/ext/remote_api/handler.py
  login: admin

The dev_appserver gives this error:
INFO 2009-03-06 20:51:38,287 dev_appserver_index.py] Updating /
home/wikid/Code/google_appengine_v2/caribbeanvisit/index.yaml
INFO 2009-03-06 20:51:50,570 dev_appserver.py] POST /remote_api?
HTTP/1.1 404 -

Here's the error:
Traceback (most recent call last):
  File console, line 1, in module
  File /home/wikid/Code/google_appengine_v2/google/appengine/ext/db/
__init__.py, line 1390, in fetch
raw = self._get_query().Get(limit, offset)
  File /home/wikid/Code/google_appengine_v2/google/appengine/api/
datastore.py, line 942, in Get
return self._Run(limit, offset)._Next(limit)
  File /home/wikid/Code/google_appengine_v2/google/appengine/api/
datastore.py, line 1536, in _Next
apiproxy_stub_map.MakeSyncCall('datastore_v3', 'Next', req,
result)
  File /home/wikid/Code/google_appengine_v2/google/appengine/api/
apiproxy_stub_map.py, line 68, in MakeSyncCall
apiproxy.MakeSyncCall(service, call, request, response)
  File /home/wikid/Code/google_appengine_v2/google/appengine/api/
apiproxy_stub_map.py, line 240, in MakeSyncCall
stub.MakeSyncCall(service, call, request, response)
  File /home/wikid/Code/google_appengine_v2/google/appengine/ext/
remote_api/remote_api_stub.py, line 169, in MakeSyncCall
handler(request, response)
  File /home/wikid/Code/google_appengine_v2/google/appengine/ext/
remote_api/remote_api_stub.py, line 207, in _Dynamic_Next
'remote_datastore', 'RunQuery', request, query_result)
  File /home/wikid/Code/google_appengine_v2/google/appengine/ext/
remote_api/remote_api_stub.py, line 135, in MakeSyncCall
request_pb.Encode()))
  File /home/wikid/Code/google_appengine_v2/google/appengine/tools/
appengine_rpc.py, line 303, in Send
f = self.opener.open(req)
  File /usr/lib/python2.5/urllib2.py, line 387, in open
response = meth(req, response)
  File /usr/lib/python2.5/urllib2.py, line 498, in http_response
'http', request, response, code, msg, hdrs)
  File /usr/lib/python2.5/urllib2.py, line 425, in error
return self._call_chain(*args)
  File /usr/lib/python2.5/urllib2.py, line 360, in _call_chain
result = func(*args)
  File /usr/lib/python2.5/urllib2.py, line 506, in
http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 404: Not Found

On Mar 4, 9:18 am, Nick Johnson arach...@notdot.net wrote:
 You can do what you want with remote_api and a little custom code. See
 the article here:http://code.google.com/appengine/articles/remote_api.html

 -Nick Johnson

 On Mar 4, 3:04 am, Pavel Byles pavelby...@gmail.com wrote:

  Is there a way to initialize thedatastorewith binary data to be stored in
  a blob field (without using a form)?

  I have tried putting the data into a CSV file and uploading it using
  bulkloader, but that didn't seem to work.

  Any help would be appreciated.
  --
  -Pav
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[google-appengine] Re: Query latency is not resolved

[Brandon Thomson]

For me things like Add a new entity result in timeout errors in the
dashboard.

On Mar 6, 10:50 am, Sylvain sylvain.viv...@gmail.com wrote:
 Another thing : even the Dashboard is slower.
 And since this morning it is more and more slow, particularly when you
 click on the '+' in the log.

 On Mar 6, 2:56 pm, Sylvain sylvain.viv...@gmail.com wrote:

  I agree, the latency is higher than last week before the upgradre.
  One of my handler is still 1k ms-cpu higher.

  Regards

  On Mar 6, 10:45 am, GregF g.fawc...@gmail.com wrote:

   Don't take my word for it - that was just what I see happening.
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[google-appengine] Re: Datastore Timeouts ( large amount of data per row )

[Brandon Thomson]

For me even fetching 1-2 entities can be too many and cause a Timeout.
It seems to depend on the complexity of the query.

I recommend you don't do any queries until the issues are resolved:
just fetch entities by key. That still works just fine.

On Mar 6, 1:32 am, gobagoo atist...@gmail.com wrote:
 I understand that there have been recent problems with latency with
 regards to the datastore.  I am not sure if it is the app engine
 environment that is the problem or if is my app.  I am consistently
 getting datastore timeouts for certain querys.  My app is storing
 farely large image files ~500KB each in the datastore.  Since I want
 my user to by upload images files dynamically, putting them in the
 datastore seems to be the only way of doing this.  I have around 80
 images in the datastore currently.  I looked into only fetch'ing() a
 certain limit at a time and then incrementing offset however the
 datastore still fetch's a constant number of rows from the datastore.
 Is there anyway around this problem ( or perhaps a better way of
 handling this ).
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[google-appengine] Re: Transcript: App Engine chat time March 4

[ryan]

good chat! sorry i missed it. i have a few comments, inline:

On Mar 5, 11:27 am, Marzia Niccolai ma...@google.com wrote:
 [7:05pm] amichail: How to fix an index that is stuck on Building?
...
 [7:06pm] marzia_google: if an index has been in building more than 24 hours
 you will need to send an email to the group and someone will be able to fix
 it

more info:

http://code.google.com/appengine/articles/index_building.html
http://code.google.com/appengine/docs/python/datastore/queriesandindexes.html#Big_Entities_and_Exploding_Indexes

 [7:19pm] Kardax: Ok, next question: we have db.run_in_transaction; is there
 a chance of getting a db.run_in_snapshot?
 [7:20pm] Kardax: I'd like to be able to read an entity group from a
 consistant state without the overhead of a transaction.

db.run_in_transaction() actually adds very little extra overhead. for
read-only transactions, all it adds is a single disk seek to read the
timestamp of the entity group's log header. that read will always be
smaller than any of get(), and more importantly for latency, it's only
a single disk seek, as opposed to queries, which take multiple disk
seeks.

given that, i'd recommend using db.run_in_transaction(). you should
only see minimal performance impact.

 [7:19pm] dankles: Q: What (if any) progress / plans are there on reducing
 Datastore CPU usage?
 [7:22pm] marzia_google: @dankles there isn't anything specific to report wrt
 to datastore cpu

we've actually made a number of solid improvements to datastore CPU in
the last couple months, both to how much CPU we actually use and to
the accuracy of our measurements.

having said that, one useful thing to note is that CPU is a broad
category. along with pure CPU, it also includes the cost of disk
accesses, particularly disk seeks, which are slow (relative to pure
CPU and in-memory operations) and expensive.

 [7:27pm] dankles: Q: Not sure if this has come up... Any plans to
 offer/parter with CDN, so a few lines in app.yaml could push a directory of
 static assets out for efficient serving?
...
 [7:30pm] dankles: @angerman: but GAE isn't really well suited for being a
 CDN
 [7:33pm] dankles: @angerman : a good CDN has servers all over the world,
 serving each user from the closest edge, and optimized for low bandwidth
 costs, static assets... GAE design goals were different, as it clusters
 around itself + Datastore, etc.

that's true for serving dynamic requests, but static files aren't
subject to those constraints. you'll probably find that static files
served through app engine are already fairly efficient and low
latency, regardless of where you are in the world, and we expect that
to get even better in the future.

of course, no need to take our word for it. you can always measure
yourself and compare to other CDNs, or look at a few of the blog posts
and threads on the group that have already done that.

 [7:35pm] Kardax: Another question:  How big can an entity group be before
 problems are encountered (besides concurrency)?  What's the definitiion of
 big?  What problems are seen?
 [7:36pm] marzia_google: with entity groups, the biggest issues is contention
 [7:36pm] marzia_google: since writes to an entity group happen serially
 [7:37pm] marzia_google: so an entity group is too 'big', i would say, when
 it can't reasonably handle the number of writes to the group
...
 [7:38pm] Kardax: I'm more concerned with physical size limitations... for
 example, if I can make reasonably sure that contention will be low, but it
 could have 10's of thousands of entities in size, is that going to work?

marzia's absolutely right here. there isn't really any meaningful
limit to entity group size, either bytes or number of entities. the
main thing entity groups limit is write throughput, not size.

 [7:55pm] angerman: marzia_google: could you publish a list of
 successfull/high traffic app-engine apps?

definitely! http://code.google.com/appengine/casestudies.html

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[google-appengine] Re: Transcript: App Engine chat time March 4

[ryan]

On Mar 6, 3:09 pm, ryan ryanb+appeng...@google.com wrote:
 db.run_in_transaction() actually adds very little extra overhead. for
 read-only transactions, all it adds is a single disk seek to read the
 timestamp of the entity group's log header. that read will always be
 smaller than any of get(), and more importantly for latency, it's only
 a single disk seek, as opposed to queries, which take multiple disk
 seeks.

another way to phrase this is, if you only do reads inside
db.run_in_transaction(), it effectively already is run_in_snapshot().
it provides the read a consistent snapshot functionality with the
minimum possible overhead.

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[google-appengine] Re: Latency problem still really a problem

[Brandon Thomson]

They said it has been stabilized. But I agree, it is still much
worse. The timeouts are the real problem; it's just impossible to
complete certain operations.

On Mar 6, 3:05 pm, cz czer...@gmail.com wrote:
 Our app is still experiencing at least double the latency as compared
 to last week and the app is basically unusable. I'm really concerned
 about this since the GAE team has stated that the latency issue has
 been resolved.
 This is so disappointing if the current performance is considered to
 be fine. I'm really hoping that this isn't the case.

 I'm curious as to how you are testing latency internally? Perhaps the
 tests aren't reflecting very well some real world scenarios and that
 some combination of datastore operations are particularly onerous.

 In any case, latency is still much much worse than before the server
 maintenance.

 P.S. also getting random 502 errors which I assume is related to this
 issue:http://groups.google.com/group/google-appengine/browse_thread/thread/...
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[google-appengine] Problem with bulkloader.py and Google Apps account.

[Denis Moskalets]

Hi.

I have appengine application, that supports authorization only for
users of domain xxx (google apps for domains).
I tried to use bulkloader.

So, if i install remote_key hook in app.yaml like in manual (http://
code.google.com/appengine/docs/python/tools/uploadingdata.html), i've
500 error in logs. bulkloader haven't even ask me about login/
password.
I've removed line admin: yes from app.yaml and tried again.
Bulkloader asked me about login/password. I've typed such login/
passowrd which i type when deploy application. In Logs i've 401
error.

So, is there no remote_key support in applications, that connected to
google apps for domain authorization?

I need to upload a lot of data to my real app What can i do?
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[google-appengine] Re: Random 502 errors

[Arun Shanker Prasad]

Hi,

Thanks Marzia for the response.

I took a look the log and did some debugging and found that I was
getting the deadline exceeded error.

But my operations were fairly simple, although there was a couple of
DB hits and a memcahce hit, but this put me over the limit. I think
maybe the latency issues are making the response time higher than
usual.

Thanks for the find and I have modified my code accordingly.

And the post you pointed to was made last month, any progress on the
ETA? or a work around?

Thanks,
Arun Shanker Prasad.

On Mar 6, 11:42 pm, Marzia Niccolai ma...@google.com wrote:
 Hi,

 If you are serving off a Google Apps domain, you are likely seeing the same
 issue as this 
 thread:http://groups.google.com/group/google-appengine/browse_thread/thread/...

 Our team is looking investigating this issue, thank you for your patience.

 -Marzia

 On Fri, Mar 6, 2009 at 7:32 AM, Arun Shanker Prasad 

 arunshankerpra...@gmail.com wrote:

  Hi,

  I saw the post saying that all the issues were resolved only a little
  latency issues remain..

  But this is no the case for my application I have be getting random
  502 (Bad Gateway errors) from the get go.. Now the frequency for these
  errors have gone up At the time of this post I was not able to get
  any request through to a particular page in my app (the function in
  this page was added recently, if that has anything to do with the
  issue).

  Any help or follow-up will be greatly appreciated.

  There is another similar scheduled update on Monday (I am keeping my
  fingers crossed for this one).

  Thanks,
  Arun Shanker Prasad.
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[google-appengine] In appgallery, my Application disapear or removed: www.gceel.com

[jeffkyjin]

Hello  app engine,

I am the owner of www.gceel.com application which was registered last
month in appgallery.
And this application was 5 stared by the Editor.
But today, I found my application could not be found in appgallery.
Is my application removed ?
Could you tell me the reason?
Thanks!
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[google-appengine] Go2 is going to pay the bill. Go2 accepts donation now. Any cooperation is welcome.

[admin go2]

Go2 is the second popular app on GAE. Go2 is very fast. Sometimes it is
faster than you visiting the website directly. Go2 also supports to sign in
lots of web sites, including bebo etc. . There are more than 10,000 visitors
from all over the world using Go2 every day. And the number is increasing
every day.

According to the google's new policy, the free bandwidth of the app will be
changed from 20G(10G in and 10G out) to 1G after May 25th, 2009. The extra
bandwidth must be purchased.

1G bandwidth is not enough for Go2. We estimate that Go2 will consume more
than 100G bandwidth per day after May 25th, 2009.

In order to continue providing the Go2's free service to the world, Go2 is
going to pay the bill, which is about  $360 per month (100G*$0.12/G*30).

Now the go2's advertising income is about $120 per month, which is not
enough to pay the bill.
So please donate to Go2, let Go2 continue providing the excellent service to
people all over the world who need it.

Any cooperation is also welcome.
go2.appspot.com

Appendix
A. Go2 is the second popular app on GAE.
See the report of alexa. The data is at the bottom of the page
http://www.alexa.com/data/details/traffic_details/appspot.com .

B. Who  are using Go2? The top 20 countries or regions are:
1China
2United Kingdom
3United States
4Norway
5Colombia
6Australia
7Canada
8India
9Saudi Arabia
10Hong Kong
11Russia
12Philippines
13Brazil
14Ireland
15Mexico
16Ghana
17Netherlands
18France
19Japan
20Germany
(Data from Google Analytics)

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[google-appengine] Re: How to do this?

[arnie]

It is still very confusing as I am not able to point out what to do
Let me explain my problem in more detail
I have to create a django template based web application that includes
a home page with a login section and a new user sign-up link. When a
new user visits the sight for the first time then he chooses the new
user sign-up link that consissts of there step registration process
step1.html
step2.html
step3.html
In step1.html form asks the user for the most basic info like
firstname, lastname, address etc. Then step2 and step3.html fiels asks
for other related info.
My problem is that how should I persist user information across
multiple pages. I do not want to store the information in datastore
for persisting user information
It seems to me that I have to use cookie based sessions but does not
get any idea how tostart.
Can anybody tell me the steps that i need to use in order to manage
data persistency across multiple pages

Thanks
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[google-appengine] Re: Query latency is not resolved

[Sylvain]

I've checked the errors in the Dashboard for my app this morning and
I've got many Datastore Timeout that didn't occurs last week.
So, I think there is still an issue there.

Regards



On 7 mar, 00:05, Brandon Thomson gra...@gmail.com wrote:
 For me things like Add a new entity result in timeout errors in the
 dashboard.

 On Mar 6, 10:50 am, Sylvain sylvain.viv...@gmail.com wrote:

  Another thing : even the Dashboard is slower.
  And since this morning it is more and more slow, particularly when you
  click on the '+' in the log.

  On Mar 6, 2:56 pm, Sylvain sylvain.viv...@gmail.com wrote:

   I agree, the latency is higher than last week before the upgradre.
   One of my handler is still 1k ms-cpu higher.

   Regards

   On Mar 6, 10:45 am, GregF g.fawc...@gmail.com wrote:

Don't take my word for it - that was just what I see happening.
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[google-appengine] Basic Python GSQL Question..

[Draive]

Hi guys,

I'm trying to put together a list of various objects. There are about
5 different classes of objects I need to put in the list then iterate
through.

It looks like this:

class Stuff(db.Model):
  something= db.StringProperty()

class Object_A(Stuff):
  pass

class Object_B(Stuffl):
  pass

object_a = db.GqlQuery(SELECT * 
FROM GroupA+
 ORDER BY timestamp ASC LIMIT 200)

object_b = db.GqlQuery(SELECT * 
FROM GroupB+
 ORDER BY timestamp ASC LIMIT 200)


Both a and b inherit from the same class and are very similar.

What I need is to be able to put these in a list then iterate through
the list like...

for object in list:
   object.something = this



the problem is that when I try to set something it gives me errors.
When however I just do objects a or objects b by themselves its
fine.

Any pointers on how to create that list?

Thanks in advance,
-d



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[google-appengine] Datastore errors, timeouts, general difficulties

[Jonathan Ultis]

I created a simple page that simply instantiates and stores a model
with about 9 primitive properties. The model is filled with the same
data each time, and that data is less than 100 bytes. I don't have
indices on any of the properties.

I did some load tests, storing approximately half a million of the
objects at most. Some of the tests were done during the recent latency
problems. Some were done after latency was stabilized. All tests with
significant concurrency (50) generated fairly high timeout and quota
exceeded error rates. So, I got significant log spew.

My total data size should be around 50 megs of real user data.

Today, my data usage jumped from about 0.5% of my data storage limit
to 67% of my data storage limit without any intervening tests. That
was surprising since that's about 10x what I really should be using.
But, I figured that data limit might count all replicas or something
odd. And, perhaps there's a latency between the data store and the
data size calculation. So, I wrote a delete all page that deletes 50
items, then redirects to itself, to delete the next 50. I just delete
the first 50 items returned. I'm not paging or anything. The script
works locally.

I ran that delete page for a while, periodically getting annoying
timeouts and quota exceeded. I did not run the page in parallel.

Now that I'm using 99% of my data storage limit. I'm afraid I may have
to buy data storage before I can delete more items.

Any ideas?

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[google-appengine] Re: Datastore errors, timeouts, general difficulties

[Jonathan Ultis]

That should read, after deleting, I'm now using 99% of my data storage
limit with no additional puts.

On Mar 6, 6:00 pm, Jonathan Ultis jonathan.ul...@gmail.com wrote:
 I created a simple page that simply instantiates and stores a model
 with about 9 primitive properties. The model is filled with the same
 data each time, and that data is less than 100 bytes. I don't have
 indices on any of the properties.

 I did some load tests, storing approximately half a million of the
 objects at most. Some of the tests were done during the recent latency
 problems. Some were done after latency was stabilized. All tests with
 significant concurrency (50) generated fairly high timeout and quota
 exceeded error rates. So, I got significant log spew.

 My total data size should be around 50 megs of real user data.

 Today, my data usage jumped from about 0.5% of my data storage limit
 to 67% of my data storage limit without any intervening tests. That
 was surprising since that's about 10x what I really should be using.
 But, I figured that data limit might count all replicas or something
 odd. And, perhaps there's a latency between the data store and the
 data size calculation. So, I wrote a delete all page that deletes 50
 items, then redirects to itself, to delete the next 50. I just delete
 the first 50 items returned. I'm not paging or anything. The script
 works locally.

 I ran that delete page for a while, periodically getting annoying
 timeouts and quota exceeded. I did not run the page in parallel.

 Now that I'm using 99% of my data storage limit. I'm afraid I may have
 to buy data storage before I can delete more items.

 Any ideas?
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