The GIL (old or new) is not a problem for concurrency unless your
application spends large quantities of time CPU-bound. As soon as you
make an I/O request, some other thread will run. The GIL doesn't
hurt.
Jeff
On Sat, Sep 10, 2011 at 4:04 PM, Steve unetright.thebas...@xoxy.net wrote:
I (and
On Sun, Sep 11, 2011 at 6:31 PM, Steve unetright.thebas...@xoxy.net wrote:
On my GET requests, I/O accounts for roughly half of the time to process the
request. When a user POSTs new data, my app does a fair amount of
recalculations and I/O is only about 20% of the request processing time.
Amazon does something like this for its excess capacity:
http://aws.amazon.com/ec2/spot-instances/
...but it's just for excess capacity. I wouldn't want this kind of
behavior for my core usage because it would make my bill highly
unpredictable. And it does not incentivize Google to add more
Is this really true, that if you burst to 100 instances you won't get
the 15-minute charges? Even if you have it set to automatic? I'd
like to hear an official voice on this matter.
I updated the FAQ with a link to your explanation. Although I have to
admit that i'm still somewhat confused
Ok, I understand what you want, and perhaps that makes sense... but
this isn't really relevant to the price change. The curent behavior
of GAE is to provide best-quality service until your budget runs out,
then fail. The post-change behavior will be the same.
And really, any benefit you get
Here ya go:
http://blorn.com/post/10013293300/the-unofficial-google-app-engine-price-change-faq
Jeff
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe
My point is that no adjustment to the scheduler will ever really solve
the problem. To the extent that it limits your bill, it does so by
sacrificing user experience. Sure you might prevent a second instance
from starting but that just means some poor sod is sitting around
waiting for his
On Fri, Sep 9, 2011 at 9:28 PM, Robert Kluin robert.kl...@gmail.com wrote:
Out of curiosity, have you noticed decreased capacity on your multi
threaded front-ends since they reduced the CPU (now 600mhz) and memory (now
128mb) / front-ends?
I really haven't been paying attention - working on
I generally share this opinion - seriously, if $9/mo is a problem,
you're not running a business. That's two lates (one in NYC).
However, I think there is a deeper issue here which is that 50k
datastore operations per day really isn't much. It's actually
somewhat hard to run a hobby project on
On Fri, Sep 9, 2011 at 9:52 PM, Jeff Schnitzer j...@infohazard.org wrote:
I generally share this opinion - seriously, if $9/mo is a problem,
you're not running a business. That's two lates (one in NYC).
That would be lattes.
Jeff
--
You received this message because you are subscribed
On Mon, Sep 5, 2011 at 9:47 AM, Wilson MacGyver wmacgy...@gmail.com wrote:
I understand people are upset about GAE pricing, but let's not pretend
this is as easy as
1: sign up for amazon, 2: setup 3 instances in amazon east, 3: webscale :)
Part of the problem is that there is a distinct
On Fri, Aug 19, 2011 at 11:30 PM, thstart thst...@gmail.com wrote:
+Jeff Schnitzer
EVENTUAL_CONSISTENCY
so with this we are 1 step back to M/S using HR? What is the point?
Huh? This seems a complete non-sequitur.
P.S. it is 3 hours and I still can not upload my app on the cloud (M/S).
I get
I wonder if this might ameliorate classpath scanning performance
issues, and make it a viable option again.
Jeff
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email to google-appengine@googlegroups.com.
To
The short version boiled down to two questions:
1) What is the maximum realistic throughput for memcache increment()
on a single counter?
2) The documentation for the HRD says that queries across entity
groups are eventually consistent. Does this extend to __key__ queries
as well? For example,
On Sat, Aug 20, 2011 at 2:34 PM, Stephen sdeasey+gro...@gmail.com wrote:
On Sat, Aug 20, 2011 at 9:50 PM, Jeff Schnitzer j...@infohazard.org wrote:
Second: The key is being able to get a strongly consistent sum of the
sharded counters.
You only really need to know whether widgets
On Fri, Aug 19, 2011 at 8:16 PM, thstart thst...@gmail.com wrote:
My only concern if I will get the same speed. I don't want to spend all this
effort
costing me money and time and at the end to find it will be slower than M/S.
Did you try the solution Stephen mentioned?
my_members =
Specifically, it's the difference between calling Entity.setProperty()
or Entity.setUnindexedProperty() on the low level API.
Objectify interacts with the datastore through the low level API, so
there is always underlying support for features. Not necessarily in a
convenient form, however.
Jeff
I'm pretty happy with Resteasy:
http://www.jboss.org/resteasy
There was a minor trick to getting Guice integrated nicely (see my
recent post on the resteasy-developers list). Other than that it
works great, and you can use it to render HTML pages with a little
extension:
On Fri, Aug 5, 2011 at 11:45 AM, William Levesque
billleves...@gmail.com wrote:
But is Google's position that all data should be denormalized?
I don't think anyone would say that. I wrote up my thoughts around
this subject here:
Sorry, just noticed this. Yeah, schema changes really don't seem to have
been a design consideration for the JDO/datanucleus integration. If you
want help with JDO, best to describe the exact changes you are making.
If you want to port to Objectify, it shouldn't be too hard since Objectify
If you are using Objectify 3.0, the Key? is a simple wrapper for the
native datastore Key - with all the same namespace consequences. In
previous versions, the Key? - Key conversion was done last-minute so it
would inherit the namespace then.
Jeff
On Sat, Jul 23, 2011 at 5:51 AM, Hugo Visser
In Eclipse, go to Project Properties - Google - App Engine and check the
Use Google App Engine box. That should be enough to get the User Library
added and the libraries set up in WEB-INF/lib, although you might need to
close/reopen the project (and use the auto-correct feature to synchronize
It's actually much simpler than you realize. Assuming that your ListLong
is an indexed property named 'friends', you just need to filter entities for
'friends' equal to your id.
This is how list indexes work - if you filter on the property, the entity
matches if any value in the list matches the
You need to host DNS somewhere no matter what you do. Google doesn't do
that for you.
You don't need to purchase any kind of web hosting plan. You just need to
put the TXT record in your DNS servers.
Jeff
On Mon, Jul 18, 2011 at 10:09 PM, Rossco rosscoe.p...@gmail.com wrote:
Thanks, but the
Keep in mind that memcache can be randomly cleared at any time. You
probably don't want to save game state there except as a cache.
Jeff
On Sun, Jul 17, 2011 at 10:00 AM, Jayjay mivi...@gmail.com wrote:
Hello, i want to make an mmo with AppEngine and i have some questions:
1) Can data
Shrug. Given that any domain chosen cannot have google as part of it (G
doesn't want to convey any kind of public endorsement of our applications),
appspot seems about as good as any. Sure cloud.com would be nice but I'm
pretty sure the people already using cloud.com have other ideas on the
For Java-Java, Hessian works well - no fuss, just Java methods and Java
objects.
Jeff
On Sat, Jul 16, 2011 at 6:13 PM, Wilson MacGyver wmacgy...@gmail.comwrote:
there are plenty of examples of people using GAE with non-browsers.
Using it as a web
service isn't uncommon. I know there are
On Thu, Jul 14, 2011 at 10:59 PM, George Moschovitis
george.moschovi...@gmail.com wrote:
Thanks for the release, but why don't you use Future?
The Future? interface is fundamentally defective because it uses checked
exceptions.
Checked exceptions are one of the handful of gross design flaws
Even though your code returns, the request itself does not return until all
pending async requests complete (or timeout).
Jeff
On Thu, Jul 14, 2011 at 5:14 PM, Pol i...@pol-online.net wrote:
Hi,
I was wondering, if you start an async urlfetch (or even an async db
operation) but don't wait
On Wed, Jul 13, 2011 at 8:26 AM, Feng xnite...@gmail.com wrote:
And they don't support cPickle, and parsing a 1MB object for each
request with pickle is not funny.
And BTW, you still have to parse it every time even when using
memcache. It's no different than the datastore in this regard.
The public/private/protected/package status of java fields is 100%
irrelevant from a security perspective. It's just there to help keep your
code clean. The data is still being passed across the wire in a simple,
easily-decoded protocol that any sniffer can translate.
If you're passing
I can't believe I'm still writing about this... at the very least
you're hacking around the $9/mo fee for an always-on instance.
The free tier of appengine works because all those zillions of
little test apps and experiments that people create don't actually
occupy resources beyond a small
This is the first time I've announced this opensource project in this forum
because until now there wasn't anything GAE-specific about it. You can
still use BatchFB outside of GAE, but now BatchFB will use asynchronous
fetching on App Engine to issue multiple batches to Facebook in parallel.
Using cron to keep your app warm is not sanctioned either. If Google wanted
to give you a way to keep your app running, they'd offer it as a feature and
charge for it.
If these hacks become commonplace, GAE engineers will be retasked to
fighting them and this will further delay new features that
On Sun, Jul 10, 2011 at 4:26 PM, Barry Hunter barrybhun...@gmail.com wrote:
On Sun, Jul 10, 2011 at 5:17 PM, bejayoharen wrote:
A great project would be one that worked from a
third party site (non-cloud hosting would suffice), checked your site
periodically, and contacted you (eg sent
If you're just looking for an MVC framework, here are two that I wrote:
Tagonist: http://www.tagonist.org/
This is about as simple as it can possibly get. Less than 500 lines
of code, no classpath scanning, zero (as in nada, none, zip) effect on
startup time. It just plays clever with JSP.
On Thu, Jul 7, 2011 at 4:41 PM, an0nym an0nym...@gmail.com wrote:
= instance hours vs ram hours =
I don't think this request for so-called ram-hours makes much sense.
I'm willing to bet that when a GAE instance starts up on a box, a
fixed amount of RAM (the max it could use, say 128MB) is
On Fri, Jul 8, 2011 at 12:42 PM, an0nym an0nym...@gmail.com wrote:
If I need to fetch/write 200 bytes of data for a small entity, and instead
of this I fetch/write 1 Mb huge entity (by the way, consume google internal
bandwidth, maybe even across datacenters with hrd, I don't even say about
Google geocoding.
Jeff
On Wed, Jul 6, 2011 at 10:14 AM, oceandrive rams...@gmail.com wrote:
Can anyone tell me if there is a way to get latitude/longitude values for a
given address
--
You received this message because you are subscribed to the Google Groups
Google App Engine for Java
On Wed, Jul 6, 2011 at 11:50 AM, jMotta jayrmo...@gmail.com wrote:
Jamie,
I don't know if get it right, but if it's part of the key it is not
possible to change.
It sounds like the id is being stored as a field/property of an entity -
it's basically a foreign key.
If this property is not
unhackable.
On Apr 9, 3:32 am, Jeff Schnitzer j...@infohazard.org wrote:
On Thu, Apr 7, 2011 at 3:20 PM, nickmilon nickmi...@gmail.com wrote:
IMHO a proxy will complicate things.
What about if GAE team gets in touch with maps V3 team and explain to
them the issue so may be they can rate limit
2011/7/6 Brandon Wirtz drak...@digerat.com:
(When the black SUV's come to take me away for explaining the best way to
hide transactions from other countries, I expect the list to start a
collection to post my bail)
Can I make my contribution with bitcoins?
Jeff
--
You received this message
This is an interesting issue. Hopefully someone at Google has considered
this when making changes to the scheduler.
Instance death after 9k requests is a known behavior of GAE (well, known
if you read these forums - I don't think there is any official
documentation). As a wild guess on my part,
I think John has the right idea... but since you probably don't need
dynamic form fields, I would probably do it like this:
class MyEntity {
@Id String uid;
@Embedded FormField field1;
@Embedded FormField field2;
...etc
}
(No doubt for Twig you just substitute @Embed for Objectify's
That's what I tend to do. Since I write consumer apps, passing my raw
entities across the wire usually isn't an option in the first place -
there's usually too much security-sensitive stuff, or at the very
least data I would rather not disclose to a potential attacker.
Also... using entities
On Fri, Jul 1, 2011 at 10:16 AM, Sergey Schetinin ser...@maluke.com wrote:
On 29 June 2011 07:57, Ronoaldo Pereira ronoa...@gmail.com wrote:
Also, on a spike in traffic today I got 70 instances up and running for
around 30 minutes (Java app without threading yet...). This gives around 70
This is utterly fascinating. Does anyone have any idea why Googlebot would
try this?
(also - are you sure this isn't something nefarious masquerading as
Googlebot?)
Jeff
On Tue, Jul 5, 2011 at 1:45 PM, Brandon Wirtz drak...@digerat.com wrote:
User Visits a page that doesn’t have any links
The Chinese government and all the rest of the internet have a
strange relationship.
Jeff
On Tue, Jul 5, 2011 at 1:51 PM, milosh zorica miloshzor...@gmail.com wrote:
google and china got a strange relationship ;)
On Tue, Jul 5, 2011 at 5:42 PM, Visame kank...@gmail.com wrote:
AFAIK, Google
On Tue, Jun 28, 2011 at 8:34 PM, vivpuri v...@vivekpuri.com wrote:
Thank you for the response. I am not really confused about anything.
Everyone has different set of experiences and resulting opinions.
Facebook was built on PHP, and definitely started from $5 PHP/MySQL.
I understand that you
On Wed, Jun 29, 2011 at 5:50 AM, vivpuri v...@vivekpuri.com wrote:
I understand that you are upset that your appengine bill might go up
4X, but how do you jump from this to the conclusion that Google
should support PHP??
Every application development platform needs developers. iOS, AWS,
On Wed, Jun 29, 2011 at 11:14 AM, vivpuri v...@vivekpuri.com wrote:
@Jeff i dont you have the development experience on AppEngine to even
take part on this discussion. Before suggesting, first go an check
what Quercus does and can enable you to do on AppEngine.
This is the stupidest thing
To be honest, whenever I start to have a less-than-perfect match
between my entities and the content rendered in my client, I usually
create DTOs. It's mildly annoying, but it results in a clean
interface without a lot of extra payload (some of which might be
security-sensitive) sent across the
One other issue seems to be that the bulk down/uploader doesn't have access
to the indexed state of individual properties (there is no API to obtain
this information). So you might get the right data structure on restore,
but all the wrong indexes (typically none or all). The only way around
On Fri, Jun 24, 2011 at 11:43 PM, Vinuth Madinur
vinuth.madi...@gmail.comwrote:
I guess the differences are as follows:
1. With instance hours the focus is not on optimizing RAM consumption at
all, but on reducing latency (increasing RAM consumption, reducing costs)
and controlling when
On Sat, Jun 25, 2011 at 3:26 PM, Alfred Fuller
arfuller+appeng...@google.com wrote:
This makes sense, and encourages more use of memcache. to hold entities.
One question that I've been wondering a while - presuming no caching, does
this query-keys+batch-get approach produce higher latency
Thanks, this clarifies much! Questions below:
On Thu, Jun 23, 2011 at 11:49 PM, Gregory D'alesandre gr...@google.comwrote:
Datastore APIs Q: Which operations are being charged for?
A: There are 3 categories of Datastore operations:
- Write operations (Entity Put, Entity Delete, Index Write),
...not to mention the fact that PHP tends to attract, well, let's generously
call them amateurs. Read Facebook's forums sometime if you want to see
what I mean. It would be the end of this mailing list.
There's also an economic argument against PHP. Google offers a free tier so
that you can
2011/6/23 László Fazekas thebo...@gmail.com
(if AppEngine supports the Quercus way).
AFAIK, nothing prevents you from running Quercus on GAE today.
Jeff
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group, send email
IMNSHO, the issue with a JS runtime for GAE is not the language but having a
purely async API to all of GAE's services. Node.js wouldn't work unless you
can fire off hundreds of async requests and get callbacks... but right now,
at least at the level of the documented API, you can only fire off
The problem with using the Channel API this way is not quota usage, it's the
rather significant amount of work required on the client server to make
this work.
Making an ajax call from client javascript is trivial. Making an ajax call
PLUS setting up, tearing down, and processing messages from
If you seriously want to invest considerable time, effort, and expense in
developing an NSFW website, I suggest you read my comments in this earlier
thread:
http://groups.google.com/group/google-appengine/msg/22f7ac8079f0230d
http://groups.google.com/group/google-appengine/msg/144ffc97fae3f181
Sounds like you could just keep it around for 30 minutes or an hour,
refreshing it after it expires.
What would be nice is to be able to perform the refresh asynchronously. Say
it takes 5s to build a piece of data that every appserver uses for
practically every request. Instead of relying on
One case is when you need to save several different entities that all
reference each other. Let's say A has a reference to B, and B has a
reference to A. If you relied on key autogeneration you would need 3 puts:
* Put A (which initializes the id)
* Set B.a to the id of A, put B
* Set A.b to
You are probably indexing all of the properties (this is default behavior).
Indexes are expensive to create and consume a large amount of storage as
well. The solution is simply not to index what you don't need to query on.
The mechanism to flag a property as unindexed varies with which GAE you
Just thinking about this for a moment... wouldn't it be convenient if you
could just use a couple of Google nameservers as your domain's authoritative
nameservers with the result that *.yourdomain.com (and hey, also naked
yourdomain.com) are automatically handled by Google Apps Appengine?
I
On Fri, Jun 10, 2011 at 9:26 AM, YF CAO caoyongfeng0...@gmail.com wrote:
i not money..[?]
2011/6/11 YF CAO caoyongfeng0...@gmail.com
OH ! My Lady Gaga !
Is this what happens when you accidentally use YouTube instead of Google
Translate to compose your email?
:-)
Jeff
--
You
On Thu, Jun 9, 2011 at 10:17 AM, Jeff Schnitzer j...@infohazard.org wrote:
Thank you for fixing the benchmark.
I am very curious. According to this new benchmark - it's hard to
tell without pushing the buttons a lot of times, but there seems to be
a trend - Slim3 is somewhat faster than
://slim3demo.appspot.com/performance/
As a result, LL is as fast as slim3 (^^;
Yasuo Higa
On Thu, Jun 9, 2011 at 10:17 AM, Jeff Schnitzer j...@infohazard.org wrote:
Thank you for fixing the benchmark.
I am very curious. According to this new benchmark - it's hard to
tell without pushing
On Thu, Jun 9, 2011 at 1:32 AM, Gal Dolber gal.dol...@gmail.com wrote:
I am not comparing reflexion vs byte-code generation or anything like that,
apt generates code, is not a runtime technology.
Like or not reflexion is known to be slower than actually writing the code.
This is entirely
in the
SDK and submit a patch.
Jeff
On Thu, Jun 9, 2011 at 5:16 AM, Jeff Schnitzer j...@infohazard.org wrote:
Ok - so what you're saying is that the extra call to list.size()
before iterating through the list makes list iteration faster? Oddly
enough, this does seem to make a difference
/Harry_Potter_and_the_Methods_of_Rationality
Until Google makes a change, maybe the other frameworks should try the
same trick?
On Thu, Jun 9, 2011 at 8:31 AM, Jeff Schnitzer j...@infohazard.org
wrote:
On Thu, Jun 9, 2011 at 1:32 AM, Gal Dolber gal.dol...@gmail.com wrote:
I am not comparing
It's still producing *wild* variance when I click those buttons. By a
factor of 2.
If you want an accurate benchmark:
1) You need more iterations. 5 is not enough. At a minimum I would
say 10. If this is too long for a single button click, you can halve
the # of entities fetched at once -
Interesting - in retrospect, of course it isn't realloc overhead.
There would be at most 9 reallocs, and there's no way that could take
hundreds of milliseconds.
I'm not sure that this optimization of Python will be as effective in
Javaland. The pattern of fetching is totally different in Python
On Thu, Jun 9, 2011 at 3:30 PM, Alfred Fuller
arfuller+appeng...@google.com wrote:
Funny because we actually don't have this feature in python (only iterators
async prefetch). Ya, I would hope coders would use asIterable() when doing a
single for loop. The real win for asList() async prefetch
On Tue, Jun 7, 2011 at 11:07 PM, Giorgio Riccardi giorgio...@gmail.com wrote:
Hi Jeff,
1) Polishing the navigation, as you said, it kind thought with GWT,
but I absolutely agree with you that it needs to be improved...
already some changes have been done, but going back at the same
position
the most confusing ...
Ikai Lan
Developer Programs Engineer, Google App Engine
Blog: http://googleappengine.blogspot.com
Twitter: http://twitter.com/app_engine
Reddit: http://www.reddit.com/r/appengine
On Wed, Jun 8, 2011 at 1:50 PM, Jeff Schnitzer j...@infohazard.org wrote
You are wrong.
Try adding getProperty() calls to your LL performance test, and the
speed advantage of the LL API goes away. I don't know what to say
about Slim3, but here's my test case:
http://code.google.com/p/scratchmonkey/source/browse/#svn%2Fappengine%2Fperformance-test
I created 10,000
Unfortunately GAE does not support Servlet 3.0.
Please star: http://code.google.com/p/googleappengine/issues/detail?id=3091
Jeff
On Wed, Jun 8, 2011 at 11:45 AM, Marcel Overdijk
marceloverd...@gmail.com wrote:
Does AppEngine support Servlet 3.0 ServletContainerInitializer for
code-based
, Gal Dolber gal.dol...@gmail.com wrote:
Slim3 is not only fast, the api is completely awesome. It has been my choice
for a year now for all gae projects.
It includes name safety and and amazing querying utils.
Very recommendable!
On Wed, Jun 8, 2011 at 3:41 PM, Jeff Schnitzer j...@infohazard.org
On Wed, Jun 8, 2011 at 4:26 PM, Gal Dolber gal.dol...@gmail.com wrote:
Slim3 is indeed faster than any other because of the simple fact that it
uses apt(code generation) instead of reflexion, the generated code it's
almost the same that you'll write by-hand to wrap the low-level api.
I'm
();
}
LL API is much slower than before.
http://slim3demo.appspot.com/performance/
Yasuo Higa
On Thu, Jun 9, 2011 at 7:45 AM, Jeff Schnitzer j...@infohazard.org wrote:
Slim3 may be a nice piece of software, but it has not been
demonstrated to be faster than anything (including JDO). It might
Hold on, let me check...
Reply hazy, try again.
Damn.
Jeff
On Tue, Jun 7, 2011 at 11:17 PM, Robert Kluin robert.kl...@gmail.com wrote:
Jeff's are you psychic? ;)
On Wed, Jun 8, 2011 at 01:52, Cade Metz cm...@theregister.co.uk wrote:
I am,
Cade
On Jun 7, 2011 10:39 PM, Jeff
of codes with the 6
lines you need for MSSQL when you move to Azure, or the 8 lines for LAMP,
-Original Message-
From: google-appengine@googlegroups.com
[mailto:google-appengine@googlegroups.com] On Behalf Of Jeff Schnitzer
Sent: Tuesday, June 07, 2011 10:39 PM
To: google-appengine
Speaking of Google's reputation and mystique, seems to me the article
we should all be talking about is this one:
http://rethrick.com/#waving-goodbye
Thoughts?
Jeff
--
You received this message because you are subscribed to the Google Groups
Google App Engine group.
To post to this group,
H. I just whipped up a test app that uses a mock
AsyncDatastoreService to provide a set of 10,000 Entity objects to
Objectify, thus purely measuring the overhead of Objectify. It
consistently transforms 10,000 entities into POJOs (just long id,
String value) in 100ms on both my laptop and on
() method.
When you iterate the result set and include an Entity.getProperty()
call, Objectify's 100ms overhead fades into the natural (+/- 500ms)
variance.
Sloppy work.
Jeff
On Wed, Jun 8, 2011 at 1:44 AM, Jeff Schnitzer j...@infohazard.org wrote:
H. I just whipped up a test app that uses
Is this documented anywhere? It's something I figured out from
occasional comments I've seen on this list over the years, but I've
never seen it mentioned in the official documentation. And it's kinda
important.
In particular, I'd like to know what the bounds are for threaded java,
and how the
Have you actually run a profiler against datanucleus? There are a
million reasons why a piece of software might be slow. Considering
the large number of logical operations involved in translating an
Entity into a POJO, I doubt very much the issue is that a couple calls
are via reflection. It's
I assume he found my name on this group, but I didn't ask. Presumably
he's reading this thread :-)
He seemed like a nice guy. I thought the article was pretty good, and
casts GAE in a favorable light. Bringing up MongoDB and HBase makes
sense; along with GAE these are the three horsemen of the
I just let the datastore do it. I like having Long ids:
* Longs always stick out in code as an id - ie in a constructor with
15 things, it sucks when they are all Strings. I often wish Java
supported C-style typedefs (or just allowed subclassing basic types).
* Long keys are more
down all the apps. And, obviously, python apps can not
be multiplexed with java apps and vice versa.
On Sun, Jun 5, 2011 at 4:24 AM, Jeff Schnitzer j...@infohazard.org wrote:
Please star this issue:
http://code.google.com/p/googleappengine/issues/detail?id=2878
This is a huge blocking issue
Heh, I remember this experience well.
GWT has a steep learning curve. If you have a sophisticated UI, it is
totally worth it - but prepare for a struggle to achieve proficiency.
Writing GWT apps is much more like writing Swing/MFC/etc fat client
apps than it is like writing traditional web apps.
This is the classic synthetic key vs natural key debate, and the
general consensus is that synthetic keys are almost always the way to
go. For exactly the reasons you describe. Yup, I think you answered
your own question :-)
Jeff
On Thu, Jun 2, 2011 at 4:21 AM, Drew Spencer
On Thu, Jun 2, 2011 at 8:52 AM, Jonathan Chen tamasia...@gmail.com wrote:
Isn't it prudent to say that GAE will do all the loadbalancing for you
when they have more datacenters overseas?
I wouldn't count on this happening anytime soon. It would be
difficult to maintain application performance
By new architecture I refer to the threadedtrue/threaded feature
that recently became available for Java, and work on a future
multithreaded version of GAE/Python.
Jeff
On Wed, Jun 1, 2011 at 1:35 AM, Francois Masurel f.masu...@gmail.com wrote:
Hi Jeff,
Do you have more to say about that new
This is one of the frustrating things about the new pricing model.
The incentives are all wrong. I don't think Google will deliberately
try to overcharge us, but in the long run organizations follow
incentives - and they no longer have a direct incentive to maximize
the efficiency of each
Nice looking site... just on casual perusal, two things jumped out at me:
1) Polish the navigation a bit more. For example, you zoom into the
map, click on a trail, click through to the trail's page, then hit the
browser back button (seems to be the only way to get back) - and
you're now zoomed
Some thoughts on your comments:
I don't think the amount of RAM supplied to a frontend instance is
particularly relevant - in most web architectures, frontend instances
just shuttle data back and forth between the user and backend data
services (datastore, memcache, facebook, etc). So it's
These are all very relevant points for application design, but don't
particularly impact the proposed pricing changes... these are the same
limitations we have to live with today.
FWIW, Similarity does frequently load 50+ entities at a time (say, one
set of match results) each of which is a hefty
This would be the absolute worst of all worlds. In this model, a
single-threaded java application would be charged the same as a
multithreaded java application, even though the single-threaded system
requires 20X more RAM to serve the same # of requests.
Wall-clock time is only an accurate
901 - 1000 of 1319 matches
Mail list logo
