[google-appengine] Re: App Engine 1.6.1 Released!

[Tom Fishman]

Nice work!

I have difficulty to find out any information related to " We've added new 
functionality to the Log API that will allow you to read your application's 
logs programmatically."

What does "programmatically" mean here? Any API?

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[google-appengine] Datastore Write Operations is 16x more of other operations

[Tom Fishman]

Hi,

Our data-store operation statistics is strange, writing operation is 16x 
more than other operations ( Read and small ).

I checked with appstat, it is usually 1:1, at most 2:1. I don't know where 
this 16:1 come from?

What's the best way to investigate?

-Tom

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[google-appengine] Re: Datastore Read and Writes Statstics

[Tom Fishman]

Is there an update on this? Have we filed an issue?

Our quota depleted so fast when we use map-reduce...

On Sep 29, 7:19 pm, djidjadji  wrote:
> It would be really nice if the WriteOps and ReadOps are logged for
> each request. Like the loading_request and ms time that is added to a
> line in the log.
> That way you can download the logs and find out which request is
> making the most Ops and perhaps needs a look at if it can be
> optimized.
>
> Op 22 september 2011 14:29 heeft Vivek Puri  het
> volgende geschreven:
>
>
>
>
>
>
>
> > For "Estimated Charges Under New Pricing", my app is showing $40/per
> > day for Writes and $13/day for Reads. $40 worth of writes is 40
> > million write operations. Right now i have not idea which table is
> > being written to most and contributing to that number. Can AppEngine
> > team provide statistics on these write and read operations. I would
> > hope this is something similar to existing "Datastore Statistics"
> > tool.

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Re: [google-appengine] The most efficient way to enumerate variations of properties in a subset

[Tom Fishman]

My understanding on app engine index for our case is that we could build an 
index as

{ width (ascend), height(ascend), key }

so we can query GQL like : width=5, height>0, width=5, height<15. So all the 
information we need is ready for us to retrieve efficiently.

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Re: [google-appengine] The most efficient way to enumerate variations of properties in a subset

[Tom Fishman]

Carter's method is good for slow update and I will definitely use it.

I do need an "interactive solution" in the mean time. Robert, your method 
will be touching two entity groups, so there might be inconsistent results 
when one of the transactions fails.

I really hope we can query/count the index without touching the entities. 
I'm sure it is technically doable.

So, I don't think I have a robust/efficient solution now.

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[google-appengine] The most efficient way to enumerate variations of properties in a subset

[Tom Fishman]

Say there are the following entities:

{ID:1,  width: 5, height: 11, ... },
{ID:2,  width: 5, height: 12, ... },
{ID:3,  width: 5, height: 12, ... },
{ID:4,  width: 6, height: 13, ... },
{ID:5,  width: 5, height: 12, ... },
{ID:6,  width: 5, height: 13, ... },
{ID:7,  width: 5, height: 12, ... },
...

What's the most efficient way to return the set of heights ( the same values 
are merged ) for all width==5? ( the answer should be 11, 12, 13 ).

We can build a query to enumerate all entities where width==5 and then build 
the set in code (java/python). But this is not salable, we might have 
thousands of entities share the same value.

I wish we can query the indexes...

Thanks!
- Tom

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[google-appengine] Is anyone seeing deployment "500 server error" now?

[Tom Fishman]

App deployment has been failing for half an hour or so:

java.io.IOException: Error posting to URL: 
https://appengine.google.com/api/appversion/clonefiles?app_id=xxx&version=xxx&;
500 Internal Server Error



500 Server Error


Error: Server Error
The server encountered an error and could not complete your 
request.If the problem persists, please http://code.google.com/appengine/community.html";>report your 
problem and mention this error message and the query that caused it.



I report it because the error suggest so. It is the same as the 
downtime/maintenance error.

-T

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Re: [google-appengine] http 500 with appcfg.py

[Tom Fishman]

neither Master/Slave nor HR 
datastore apps will be able to deploy during this period

Thursday, 2011 Jul 14, 5:00pm/1700 PDT/GMT-7 (Friday, 2011 Jul 15, 
midnight//GMT) 

http://groups.google.com/group/google-appengine-downtime-notify/browse_thread/thread/bb77cad713eeec0

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[google-appengine] AOL federated ID

[Tom Fishman]

I recently discovered the wierdness of AOL federated ID. Its ID are 
changing!! For this example user, its ID changed from:

   https://openid.aol.com/opaque/40d9***a-42f0-11e0-b026-000bcdca4d7a
to:
   https://openid.aol.com/opaque/3e23***c-37af-11e0-833c-000bcdcb471e

I think it is not my bug. Is this google's issue or AOL's issue? I didn't 
see any other providers have the same issue.

-Tom

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[google-appengine] App upload failure rate

[Tom Fishman]

We use Comcast as our internet connection provider and usually we need 
upload 4 times ( in 10 mins ) to finish a 30 files update.

I guess Comcast check the pattern of the packet and freeze the connection 
when "necessary". ( The modern light will be off ). This also happens to 
skype sometime.

I'm curious if anyone have similar issue or even a solution. Now I'm wasting 
30 mins everyday on re-trying the uploading.

-Tom


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[google-appengine] is it possible to create blobKey for a Blob property of a entity?

[Tom Fishman]

I already got a bunch of image blobs stored in the database, is it possible 
to create blobKey for any Blob property? So I can use the high performance 
image service to operate on them.

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Re: [google-appengine] Support for SSL on different domains

[Tom Fishman]

I'm pretty satisfied with the current support:

Browsers with support for TLS server name 
indication:[6]

   - Internet Explorer 7  
(Vista 
   or higher, not XP) or later
   - Mozilla Firefox  2.0 or 
   later
   - Opera  8.0 or later 
   (the TLS 1.1 protocol must be enabled)
   - Opera Mobile  at least 
   version 10.1 beta on Android[*citation 
needed
   *]
   - Google Chrome  (Vista or 
   higher. XP on Chrome 6 or 
newer[7]. 
   OS X 10.5.7 or higher on Chrome 5.0.342.1 or newer)
   - Safari  .2.1 or 
   later (Mac OS X 10.5.6 or higher and Windows Vista or higher)
   - MobileSafari  in Apple 
iOS 4.0 
   or later[8]
   - Windows Phone 7 [*citation 
   needed *]
   - Maemo 


I don't mind to redirect the rest users to https://*.appspot.com.

Will GAE support it soon? 
What's the difference between GAE and App Engine for business? I know App 
Engine for business is going to support it soon. (
http://code.google.com/appengine/business/roadmap.html)





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