Hi Marcel,
What is your use case? Why do you want to know if it's thread safe? You
can't create new thread inside appengine sandbox.
Regards,
Max
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+1
I am also curious on the answer. I found following code snippet in class
QueryTranslator, it looks to some degree these two are the same and
prefetchSize overrides chunkSize?
DatastorePb.Query proto = new DatastorePb.Query();
if (fetchOptions.getPrefetchSize() != null) {
Found this
http://stackoverflow.com/questions/6914069/google-app-engine-chunksize-prefetchsize-where-can-i-read-details-on-it
On Sun, Nov 20, 2011 at 8:27 AM, Max thebb...@gmail.com wrote:
+1
I am also curious on the answer. I found following code snippet in class
QueryTranslator, it looks
Erick,
A while back the API changed to use with() functions, and I'm sure
they did not catch all the docs that needed updated. You should file
an issue here for fixing the documentation and someone will eventually
get to it: http://code.google.com/p/googleappengine/issues/list
Broc
On Nov
I'm having this same issue, did you find a solution already?
Greetings.
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I am starting off with a new project using app engine java. I am trying to
decide what mvc framework to use. I went through previous messages posted
by group members and found this
linkhttp://?place=msg%2Fgoogle-appengine-java%2F7wkMDm6kptY%2F-hxbaAyfK4sJ.
I then narrowed down my choices to
You can't create a new thread, but you can have multiple concurrent
requests if you say your app is thread safe in appengine-web.xml, which
means that your code will be running with multiple threads.
I must admit that I just assumed all the services provided by App Engine to
be thread safe.
My suggestion:
For datastore access use Objectify:
http://code.google.com/p/objectify-appengine/
For your MVC framework go with AJAX/Javascript/HTML5 and use Backbone.js:
http://documentcloud.github.com/backbone/
We've used Tapestry5 on App Engine before but without lazy loading and
serious
Alfred made this comment, which sheds a lot of light on it:
On Sat, Nov 19, 2011 at 8:56 PM, Alfred Fuller
arfuller+appeng...@google.com wrote:
if you set chunkSize and not prefetchSize every call will try to return
chuckSize results (even the first call)
if you set prefetchSize and
My favored stack right now:
Objectify (I'm the lead developer, so this one was easy)
Resteasy + Htmleasy + Guice, tightly integrated
Cambridge templates (with JEXL)
Coffeescript + jQuery + Handlebars.js on the frontend
Heavy use of Jackson to jsonify objects, including embedded in the page
html
Occasionally eclipse gets stupid like this. Some combination of Project
Clean, closing/opening the project, and closing/opening eclipse eventually
sets it right.
Jeff
On Sat, Nov 19, 2011 at 10:23 PM, Mauricio Porras P
mauricio.porra...@gmail.com wrote:
I'm having this same issue, did you
Look at the source code. BlobInfoFactory only has one piece of member
data, a DatastoreService. So if DS is thread-safe, so is BIF. I don't
know if DS is thread-safe though.
Jeff
On Sat, Nov 19, 2011 at 9:20 AM, Marcel Overdijk
marceloverd...@gmail.comwrote:
Is BlobInfoFactory thread safe?
Thanks for pointing me to backbone.js. I am also looking at
knockout.js as well.
On Nov 20, 12:00 pm, Chris ritterch...@gmail.com wrote:
My suggestion:
For datastore access use
Objectify:http://code.google.com/p/objectify-appengine/
For your MVC framework go with AJAX/Javascript/HTML5 and
Jeff,
Thanks for your input. I looking into objectify for datastore access
in my app.
On Nov 20, 12:12 pm, Jeff Schnitzer j...@infohazard.org wrote:
My favored stack right now:
Objectify (I'm the lead developer, so this one was easy)
Resteasy + Htmleasy + Guice, tightly integrated
Cambridge
GWT !
no one mentioned GWT : (
On Nov 20, 4:54 pm, sppl spol...@gmail.com wrote:
I am starting off with a new project using app engine java. I am trying to
decide what mvc framework to use. I went through previous messages posted
by group members and found this
On Sun, Nov 20, 2011 at 12:54 PM, sppl spol...@gmail.com wrote:
I am starting off with a new project using app engine java. I am trying to
decide what mvc framework to use. I went through previous messages posted by
group members and found this link. I then narrowed down my choices to
Hi guys,
Last night I launched my pet project to public, www.neytap.com. It's a
(very) simple classifieds for room rentals inside Facebook.
It runs on GAE/Java and written in Scala, using just Servlet/JSP in
the server. I tried Spring but given up.
Other than that, it uses:
Objectify,
Hi,
You might have a look at Gaelyk 1.1, which is quite lightweight:
http://gaelyk.appspot.com/
In dev mode, you can make changes and just refresh your browser, it's got a
simple MVC approach, and lots of shortcuts and syntax sugar to make the GAE
SDK APIs easier to use.
Guillaume
PS:
Mr Wirtz,
You have not read my response.
All of the examples I have given are Google issues since they are
presented in the system status.
I do know when my system is down for my fault and when it is down on
Google's fault. If you dive into the system status you will see that
even by their
I read your response.
I don't think you read the graphs you sent.
For 45minutes they were at 30% errors. That only counts as 15 minutes of
downtime. And since it appears that only polls once every 5 min or so I'm
not sure what that means for SLA.
You spoke of downtimes you had that weren't
Although I repeatedly asked you not to take this conversation to
Who's fault is the downtime, you still do so!
Again, my problem is that when it is Google's fault, there's no one to
talk to - Can you argue anything relevant to this point please? Amazon
had a week downtime, but THERE WAS SOMEONE
Yes. Because the thread is GAE team is dishonest
If their honesty is in contention then who's fault your app is down is
relevant.
Yes I can have higher than 98.92 because not everyone was down during those
times. Plus Edge Cache can serve up to 60% of my traffic for short periods
of time, so
Oh, and as to destroying your thread. I don't expect that Greg and Ikai and
Nick, and the rest of the Google team stopped reading the thread because I
commented on it.
I get the distinct impression that your Downtime was higher than stock
because you had something misconfigured. I suspect that
Brandon, read my original post - the dishonesty is regarding the fact
that one day they say that the service has disruption, and the next
they show that they don't. Not who's fault is that my app is down.
When I call support I want to know how long will it take them
approximately to solve the
Oh, and you are not an Ass, a Troll, an Idiot. I respect your
excellent ambition to 'protect the innocent'. I agree my subject line
was inflammatory to get a response, which it got. I have nothing but
respect to the GAE team (as I said again and again and again).
I am sorry to tell you but I
I was migrating one of my Java MS apps to HRD using the migration tool. So
far so good. After having *copied*, tested and applied the switch to the
HRD app, all went fine so far.
Then however the horror starts to begin:
1. Instead of just disable billing and leave my MS app in some kind of
Setting the idle instances is one of the recommended ways for managing
the number of frontend instances. But if I've not got warmup requests
switched on, will it make any difference if I switch it on and make
the idle instances very small?
Thanks
Ron
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Yikes!
Lesson: After migration, disable billing on the M/S app, disable the M/S app.
Don't delete anything.
On Nov 20, 2011, at 6:41 AM, Marcel Manz wrote:
I was migrating one of my Java MS apps to HRD using the migration tool. So
far so good. After having copied, tested and applied the
hello,
I want to download a large file and process it daily. Size is up to 100MB
zipped, 1GB extracted, and processed output less than 1MB.
I noticed the URL fetch response size quote is 32MB:
http://code.google.com/appengine/docs/python/urlfetch/overview.html#Quotas_and_Limits
pity the Google Bot doesn't support Crawl-delay in robots.txt
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Could this be threatening behaviour? I'll let someone else decide.
Both of you. Knock. It. Off.
On Nov 20, 4:52 am, Brandon Wirtz drak...@digerat.com wrote:
Calling the team dishonest. Where I grew up calling someone a liar is the
kind of thing that gets your nose bloodied.
--
You
Excellent! Can I now plllease get someone at Google to
comment on the transparency issue?
Is there any chance that next time GAE is at a very elevated status, as
seldom as that may occur, we the paying users can get a description of the
problem and a rough estimate of how long
I can certainly see forcing you to decide by not providing a default, that
makes you to think about it. Defaulting to off doesn't force you to do
anything, it just swings the balance to cost is more important than
functionality. I suspect you're going to be getting a lot of novices who
are
thank you brandon, great info!
On Nov 19, 8:06 pm, Brandon Wirtz drak...@digerat.com wrote:
Now that it has been up for a few hours.
Cache hit rate would be a lot higher but this app serves a lot of search
queries which are Robo-Generated if that traffic were ignored we'd be
sailing along at
As soon as the new billing rolled out, I made the necessary changes to
switch to 2.7 with concurrency and launched my new version.
But because of the bugs I had to roll back to a version with 2.5 on it.
(Here is a fatal bug:
http://code.google.com/p/googleappengine/issues/detail?id=6282 )
(As
I have written an app that sends email notifications to it's users
under some circumstances. Sometimes it works, other times it doesn't.
The code doesn't change and I am using the same small set of emails
addresses to send and receive emails so I can't see what I am doing
wrong.
When it fails I
I have written an app that sends email notifications to it's users
under some circumstances. Sometimes it works, other times it doesn't.
The code doesn't change and I am using the same small set of emails
addresses to send and receive emails so I can't see what I am doing
wrong.
When it fails I
i have the same problem. i just give up looking for a solution.
i hope this problem does not happen when i change my application to the
billling status.
2011/11/20 Jeff Gager jeffga...@gmail.com
I have written an app that sends email notifications to it's users
under some circumstances.
Can we get a confirmation from GAE team on this information? I know they do
not want to touch caching issue...But many developers are interested and it
would be the worst outcome if we go on second hand information which might
be bogus through no fault of Brandon's.
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You received this
I'm using version 1.6 on Ubuntu 64 with the Go version.
When I attempt to start dev_appserver.py I receive the error below.
I have
/usr/share/pyshared/MySQLdb
/usr/lib/pymodules/python2.6/MySQLdb
/usr/lib/pymodules/python2.7/MySQLdb
in my path just to be sure.
What is causing this?
WARNING
Hi.
I have to use memcache to store some values frequently accessible by
application I am working on.
The Google App Engine Memcache doesn't work as it apparently removes
values after a couple of minutes I store it at memcache.
I really need any idea and would highly appreciate for any comments.
I'm pessimistic that even if we got information that it would STAY
accurate. Caching has worked, and then not worked, and then worked again.
The best thing I can tell you. If you set cache headers to 5 minutes
(300) Things will get cached. Pages we had set this way have always worked.
Hi Yoav,
I don't feel this thread hasn't been hijacked, but I'm not sure what your
question is at this point. We typically do post an update when there is a
system-wide issue and we typically do a post-mortem as well. So if you
question is Can we post something when there are system-wide
Memcache is just a cache. Your values have no guarantee of being there even
1micro second after you did the write.
If you post your code we might be able to help, but I assure you Memcache
does work.
My app does reads from the datastore or memcache for every request,
sometimes to for
Hello,
I have different backends running as B1 and B2, they all are closing
frequently at the same time, 2-3 times per day.
Can someone please from Google let me know if this is going to happen all
the time or this is a temporary?
Would be grateful for your response.
Thank you,
Andrius
--
Hello,
I am experiencing higher rate of deadline exceeded errors for the last two
days. As this was fine recently I cannot find where is the problem.
Can please someone from Google explain why sometimes warmups will work fine
and sometimes they will fail and why for the last two days error rate
Hi
I just recieved a bill (admittedly small) for the 2011-11-20. In my
billing in history I have in fact
two entries for that day, and in fact for the same time. One has billable
hours of 117 and the other 16.7
This has never happened before (that many hours used and two entries in the
Actually on closer examination there is no period assigned to the bill and
I can assume its for the most recent billing event.
Serious lack of information going on here
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If you saw my post on Google Bot consuming 85k page views in a day seemingly
out of the blue, Yes I have seen hours jump even when traffic in Analytics
don't.
Google Just switched to Google Wallet I got lots of micro bills when that
happened. (Like 30 charges under 30 cents) which was part of
Actually I am stupid, I just realized that the actual charge is for the
minimum billing spend.
They are just inflating the used hours in the statement for some reason,
which through me off.
That shouldn't be necessary, they should just rely on the minimum spend
line item.
Also the billing
Updated the tracking bug with this info:
http://code.google.com/p/googleappengine/issues/detail?id=2258
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My application relies on accessing a lot of simple stored data and
displaying it. I'm considering storing all data in the RAM of the
application in order not to have problems with datastore access quotas, but
I'm not sure if there are any limits of how much data can be stored this
way. Is
Hi Greg,
can you please provide more information on you recent statement:
The reason that the status site says the number that it does is because it
includes M/S and HRD apps so it is showing uptime for apps not under SLA.
Does that mean that premier accounts get better uptime?
Thank you,
No. It means that all the OLD M/S apps bring down the average. (aka if you
care about uptime don't use M/S)
Premiere grants you support, AND if you have 300 apps instead of paying the
per app minimum fee you pay for usage so if you have 300 apps that would
cost $2 a month instead of the $10 a
You get 128 megs of ram for front end instances. Also, so far my
experience says that py 2.7 uses quite a bit more ram just to run
hello world.
On Nov 20, 5:58 pm, ThePiachu thepia...@gmail.com wrote:
My application relies on accessing a lot of simple stored data and
displaying it. I'm
Bob,
Check if you are able to do `*import MyQLdb*` directly in python console
without errors.
I too had the same problem, but on windows. When i got the error in
dev_appserver.py, I went to check if MySQLdb is available in python.
I tried to do a `*import MySQLdb*` from python console it
To close this thread, It turns out that XG transactions are not turned on
automatically; it is controlled per transaction and an API has to be called
first to do this. This is explained in the documentation but I had missed
it, sorry... After I turned the XG on, things work as expected on the
I'm using python and webapp. My code calls use_library() but I'm still
getting these warnings in my logs:
You are using the default Django version (0.96). The default Django
version will change in an App Engine release in the near future.
Please call use_library() to explicitly select a Django
Since Nov. 8 my app has started getting DeadlineExceededErrors. The
requests that are doing this are spending 60-80 seconds _and aren't
even finishing imports_. I've included both an example stacktrace and
the relevant lines of my python code at the bottom.
As you can see, it took 80 seconds to
Are h using 'python27
On Nov 21, 2011 9:21 AM, Mark Ivey zov...@gmail.com wrote:
I'm using python and webapp. My code calls use_library() but I'm still
getting these warnings in my logs:
You are using the default Django version (0.96). The default Django
version will change in an App Engine
You get an amount of ram close to but not always equal to 128M or ram PER
instance.
Python 2.7 uses more memory for Hello World, and less for most operations.
They both use the same for storing things like Data Caches.
You can use the local instance in addition to data store. Not instead.
Did you use the services you were billed for?
Were you given warnings that the billing changes were coming?
Did you accept the $50 that GAE gave early adopters? (I don't think I did)
If you answered yes to the first one, You don't really deserve your money
back.
If you answered yes
Hello,
I am a new iOS developer and I was wondering if anyone could please
help me find a walk-through-guide for implementing GAE on my iOS game
apps. I want to be able to change the splash screen when you start
the app and change the games listed in my more screen. Plus to be
able to track how
You could have considered giving me a citation... I mean... If you are
going to steal my comments spelling errors and all.
-Original Message-
From: google-appengine@googlegroups.com
[mailto:google-appengine@googlegroups.com] On Behalf Of Stephen
Sent: Sunday, November 20, 2011 3:58 PM
He did cite it, there is a link to this very discussion.
On Nov 20, 11:35 pm, Brandon Wirtz drak...@digerat.com wrote:
You could have considered giving me a citation... I mean... If you are
going to steal my comments spelling errors and all.
-Original Message-
From:
WTF! Without any pre-notification, got charged for $2.10. What the fukcing
the company is doing now? Crazily charging us for everything?!
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That's the 1 week price for an always on or minimum billing enabled app.
The dashboard has been telling us this for weeks.
From: google-appengine@googlegroups.com
[mailto:google-appengine@googlegroups.com] On Behalf Of Frank DU
Sent: Sunday, November 20, 2011 9:08 PM
To:
Pablo,
An 'IN' operator is implemented as a set of queries, one for each item in
the list, and so the cost will be for the set.
(You can see this reflected in appstats).
-Amy
On Sun, Nov 20, 2011 at 6:59 PM, Pablo Castilla pablo.casti...@gmail.comwrote:
Hello,
I would like to know the
hi,
Query.run() only pre-fetches asynchronously as time allows; when you access
the iterator it fetches results as needed.
You should not see fewer results using run()-- and I was not able to
reproduce your issue with a test app.
You might double check that your queries are the same in both
I would suggest that Google splits the current availability percentage in
the system status into two values.
One related to applications using MS, the other related to applications
using HR. A single value for the hole system somehow doesn't make sense, as
this number won't be accurate to
Yes, this problem is very annoying.
I think it is a defect even a bug in the instance scheduler.
Below is mail I sent to GAE support, without replies.
The problem is the scheduler often will not use an instance in idling.
*
This problem is so serious.
In my experience, max idle instance is useless, it is even make
situations worse.
mix idle instance works. yes, which means more money works.
On Nov 20, 10:04 am, Brandon Wirtz drak...@digerat.com wrote:
Setting your max idle instances and your pending latency is hard, and it
requires you do
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