http://code.google.com/intl/en/appengine/docs/java/runtime.html
-Original Message-
From: google-appengine@googlegroups.com
[mailto:google-appengine@googlegroups.com] On Behalf Of Mike Prince
Sent: Saturday, May 14, 2011 11:29 PM
To: Google App Engine
Subject: [google-appengine] How to for
I have a servlet that works fine in development but crashes the server
in production and I'm trying to figure out why.
Since the log files seem to be flushed at the end of the HTTP request,
and the server is crashing, nothing is written and I'm flying blind.
I thought I heard mention of a way to
Well, the Datastore Statistics don't add in any indexing, etc. whereas the
quota details does add that in.
On Sat, May 14, 2011 at 9:37 PM, Brandon Wirtz wrote:
> This isn’t a big deal, but the numbers don’t sum what I’d have expected…
>
>
>
> Both of these are about 2.5x in billing what I think
This isn't a big deal, but the numbers don't sum what I'd have expected.
Both of these are about 2.5x in billing what I think I am doing in storage.
Where does the Discrepancy come from?
>From the Dashboard:290 MB on one app 1.56GB on the other
High Replication Data
$0.008/ GByte-d
Since backends and frontends are updated separately, the code in each
may be different. Updating a frontend does not change the code that is
running in a backend/vice versa.
As for the syntax, I believe it should be:
deferred.defer(deferred_fn_name, param1, param2, _target='backend-name')
On 14 M
Woo-Hoo!
Thanks, I can't wait to try that, but I'm don't working for the day.
Cheers, Eric
On 2011-05-14 10:15 AM, Erick Fleming wrote:
Actually I was wrong I on the last point. If you use
appengine_web.xml [1] to configure your static files as "excluded"
then appengine won't move them to th
Hi Greg,
Thanks for the response. Just to be clear, the syntax to defer a task
to a backend is the following?
deferred.defer(deferred_fn_name, param1, param2, _target='http://
backend-name.app-id.appspot.com')
Also, you mentioned that we should be sure that the backend has the
same classes and c
Can I bribe somebody to do my apps? (I even moved to 1.5 hoping that'd auto
fix them)
My apps all return this:
HTTP/1.1.200.OK(CR)(LF)
Cache-Control:.no-cache,.must-revalidate(CR)(LF)
Content-Type:.text/html;.charset=UTF-8(CR)(LF)
Set-Cookie:.S=apphosting=JPio4yliHelJf10OZQQWDw;.path=/(CR)
That is correct, all tasks get the same host header as the request
that created them. This means that if you access the url
http://0.backend-name.app-id.appspot.com/ and it inserts a task, the
task will execute against instance 0 of 'backend-name'.
If you access the url http://backend-name.app-id.
You should be able to send a deferred task to a backend.
Some points to remember though:
* You should ensure that any classes/etc you reference from the
frontend must exist in the backend.
* The deferred function should pass the 'target' parameter on to taskqueue
* You must enable the deferred
Appreciate that Brandon.
On Sun, May 15, 2011 at 10:24 AM, Brandon Wirtz wrote:
> Round.
>
> http://maps.google.com/?ie=UTF8&ll=47.595,-122.36&spn=.873914,.712402&t=h&z=
> 15
>
> 3 decimals of accuracy puts the boat near the center, but would you change
> results if you
> Were closer to the peer?
you can shard by the biggest geocell and cache based on the smallest
geocell.
at then end GeoModel creates a hash based on geoboxes that you can easily
play with
On 14 May 2011 18:10, Devraj Mukherjee wrote:
> Hi all,
>
> Our project http://safesharps.org.au uses GeoModel
> (http://code.google.
Round.
http://maps.google.com/?ie=UTF8&ll=47.595,-122.36&spn=.873914,.712402&t=h&z=
15
3 decimals of accuracy puts the boat near the center, but would you change
results if you
Were closer to the peer?
http://maps.google.com/?ie=UTF8&ll=47.589,-122.37&spn=.873914,.712402&t=h&z=
15
Essentially
Hi all,
Our project http://safesharps.org.au uses GeoModel
(http://code.google.com/p/geomodel/). To boost performance we have
been caching many of our query results using memcache, this is
generally done by keeping an index of the search terms.
Our app has Web / Mobile Web and upcoming mobile app
A follow up to this question is if we can use the new pipeline API
with backends. If we start a pipeline in a backend, will all future
pipeline tasks be processed by the backend?
On May 14, 2:41 pm, Aaron wrote:
> Hi,
>
> The way my application is set up involves deferring a lot of long-
> runni
Well Duh, You are generating a JPG, you said "send the bytes" but you are
modifying, rendering, and compressing a JPG. That takes some CPU.
My app sends jpgs and uses no CPU as it were because it really is "do I have
this? Oh I do? Great here it is"
Your app is "Hey Draw me a pretty picture" "U
Thanks Brandon. Every image is unique, and is generated by users from
the client. So statics limitations make it infeasible.
Right now I think this has to do with the on/off again hits. I went
into my Dashboard after a few individual calls, and saw I had gone
from 3 resident instances: 3 resident
Thanks for the clarification.
On 15 May 2011 00:47, Mike Wesner wrote:
> Your app actually only runs out of one data center at once. The
> diagram was a little misleading. If a data center goes down then your
> app is served out of the other with a different memcache (empty)
>
> On May 14, 3:26
Your app actually only runs out of one data center at once. The
diagram was a little misleading. If a data center goes down then your
app is served out of the other with a different memcache (empty)
On May 14, 3:26 pm, Sergey Schetinin wrote:
> I'm pretty sure the memcached clusters (if there a
Hi,
The way my application is set up involves deferring a lot of long-
running tasks, which I now would like to move to a backend. Is it
possible to defer a task so that it is processed in a backend? Or, do
I have to create handlers for every deferred task in order to take
advantage of this feat
If the data doesn't get updated, using the blobstore might be a good
idea. As I recall, you can't update a blob. So if the data changes
it may not be the best idea. Of course, it really all depends on the
app / usage.
I store serialized dicts / lists in text / blob properties quite
often. It w
Put it not in a blog.
Consider using Static (depending what else you are doing)
With out code it is hard to tell what you are doing but you may be using API
cpu and not "CPU" Cpu
Most of my CPU bill is API.
-Original Message-
From: google-appengine@googlegroups.com
[mailto:google-appeng
I'm pretty sure the memcached clusters (if there are more than one)
are not synchronized. First of all, that would be way too slow.
Second, the talk I referenced specifically mentions that when the apps
are being migrated from a DC, the memcache writes return success but
are in fact noop, because s
I thing HR-applications have more than one syncronised memcache - by
me test save in HR-memcache in 3 times slower, than Master/Slave
application.
On May 14, 6:56 pm, Sergey Schetinin wrote:
> So, I was watching the presentation on the HR datastore from the IO
> 2011 (http://www.google.com/events
I've been noticing this as well. Behavior is very similar to what I
saw and reported on January 5, and which was subsequently resolved.
http://groups.google.com/group/google-appengine/browse_thread/thread/7628e7474f792170/6ca1eb5f4058a9e8?lnk=gst
On May 6, 8:51 pm, Nischal Shetty wrote:
> Yeah
Actually I was wrong I on the last point. If you use appengine_web.xml [1]
to configure your static files as "excluded" then appengine won't move them
to the "static" server. Therefore, you can use a statandard filtering
mechanism for those files.
[1]
http://code.google.com/appengine/docs/ja
>
> If I understand what you are saying, I could make every URL map to a
> servlet, and let the servlet return the specific static pages.
>
Yes. I generate my static content from simple templates, store them in the
Datastore + Memcache, and serve them through a Servlet. There's a blog post
by Ni
Can anyone help me understand these CPU times.
I have an on-line handler function that basically does a get_by_id(),
and sends out the bytes for a 150x100 pixel jpeg BLOB record value. A
pretty straightforward image retrieval from the datastore.
My CPU loads are all over the map. I am $9 paying f
So, I was watching the presentation on the HR datastore from the IO
2011 (
http://www.google.com/events/io/2011/sessions/more-9s-please-under-the-covers-of-the-high-replication-datastore.html
) and one thing caught my attention: the slides were showing the
frontend instances running in more than o
Thanks for the reply Robert.
I ended up spending several hours last night reading through the OAuth specs
and SHA1 specs (in particular how to properly sign a request). I now have a
much better understanding of the OAuth dance and the Google docs seem much
more clear.
My development partner and
Thanks I'll check this out. Is there anything I can to do optimize
bandwidth used. Each of those 50,000 requests are completely different
entities and have different uris, (/api/articles/46452)
On May 13, 10:10 pm, Gopal Patel wrote:
> you can use in-instance caching. It may not be always up to
It's undecided but it will probably be billed per RPC. (The query is
divided into multiple RPCs under the covers.)
On May 14, 11:34 am, rekby wrote:
> I want make full backup.
> Do query "SELECT * FROM MyTable" bill as only one API call if I have some
> thoutands/millions records?
--
You receiv
I don't know what I want instances to do.. I am finishing up a complete
re-write of my code so that if I have to move to Java or GO that my code is
perfect in Python and I can pay for a port, not a re-write. On the App I'm
baking the code to make sure I didn't blow anything up on, I'm now cruisin
I suspected that might be the case, but if I have a few minutes to spare
sometime I might try it out.
My startup and servicing costs is pretty minimal - I've got a
one-page-webapp and most of my calls are just AJAX calls to load and update
data, so it's typically just object to JSON and back ag
I want make full backup.
Do query "SELECT * FROM MyTable" bill as only one API call if I have some
thoutands/millions records?
--
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I didn't try remming the line. I was just looking at my code and thinking .
Oh maybe people don't see what I see :-)
That code does the user agent which the other thread about blocking bots
needs. I'm being helpful, just on the wrong thread :-)
From: google-appengine@googlegroups.com
[mailt
I don't do that but I can still see the IPs. May be your lie works in my
case :P
On 14 May 2011 13:09, Brandon Wirtz wrote:
> I lied, the stub code I start my projecta with has
>
>logging.debug('User-Agent = "%s", Referrer = "%s"',
> self.request.user_agent,
>
I lied, the stub code I start my projecta with has
logging.debug('User-Agent = "%s", Referrer = "%s"',
self.request.user_agent,
self.request.referer)
Which will give you this
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