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I've been thinking of creating an online service that heavily depends on HTTP GET/POST requests and some backend processing. But I'm a little confused on which is the best choice of these: Google App Engine or Google Apps Script?
I know Google App Script deals mainly with the other Google products, but that I don't mind; I can write scripts to handle my requests, do the processing, and make databases out of spreadsheets. Yes it's somewhat tiresome, but Google Business Apps is quite attractive to me since I already use it.
I haven't used a PaaS before to be honest. How would App Engine be any better? technically, pricing-wise, business-wise, security-wise... etc.
It's depend on what you want to do.
If you except a heavy load, AppEngine is scalable and permit to handle many requests per second. It launch more instances automatically.
AppEngine have some free quotas and if you develop your application correctly by using memcache you can stay under these quotas.
Doing service with App Engine is completely different than Apps Script which is juste kind of javascript. You can use Python, Java, PHP or Go on App Engine. And if you want to communicate with other Google's products you need to authenticate which is a little bit more complicated than App Script.
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I'm using google appengine for business use. When I deploy something, it goes directly to production.
I would like to be able to deploy the same app to a beta version that uses the same datastore as the production site, and push to production from time to time after a complete validation.
Is there a way to do that with google appengine? What do you use?
You could send a small % of users to the new version as detailed here: https://developers.google.com/appengine/docs/adminconsole/trafficsplitting
App Engine's Traffic Splitting tool allows you to roll out features
for your app slowly over a period of time, similar to what Google does
when rolling out a new feature over a few days or weeks. Traffic
Splitting also allows you to do A/B Testing. Traffic Splitting works
by splitting incoming requests to different versions of your app.
To set up Traffic Splitting, choose a non-default version of your app
with code you want to test, specify the percentage of traffic it
should receive, and choose the type of splitting to use. It also
important to pay attention to the effects of caching on the static and
dynamic resources in your app.
You also have options regarding routing:
Each request arriving at an app is sent to a particular version of the
app. Normally, the versions are distinguished by URL. For example,
consider an app called codeninja with three active major versions:
alpha, beta, and default. All traffic sent to
http://codeninja.appspot.com goes to the default version, but you can
send traffic to other versions by including their version name as a
prefix (for example, you could access the beta version of the
codeninja app via http://beta.codeninja.appspot.com.
You deploy with a version. Don't make it the default one and use its special url to access it. It's all explained in the appengine documents on how to deploy.
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I am writing a webapplication that has to work with existing mySQL-databases. The client would like this application to be developed using GWT.
I soon found out that the GAE does not support mySQL, so I disabled it to be able to use the existing mySQL databases. Since I am new to GWT I am a bit worried and clueless - will disabling the GAE disable some of the GWT features or is GWT and GAE unrelated for developing the functionality of my app?
GAE is a cloud server. you can deploy your gwt app on tomcat, jboss etc any server. GWT is not bound to GAE.
Google app engine is provide free support to deploy, maintain and build your app. and also provide free domain name on www which end with .appspot.com.
Before it only provide datastore support. It is support Google Cloud Sql now.
You can disable GAE support ( in Eclipse I assume ) without losing any GWT functionality. While GWT is a web development toolkit, GAE is a server platform.
Google App Engine actually does support MySQL. Their Cloud SQL release is a slightly modified MySQL RDB, so it maybe easier for you to use GAE for the API's and the out-of-the-box compatibility.
https://developers.google.com/cloud-sql/
That being said, GWT is not related to GAE so you can use both, independently.
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I'm trying to work out what hosting to get for a small pop up site to take registrations from an EDM campaign. We will send the emails out from mailchimp or similar, and then the site will need to show a couple of info pages and a registration form. Ill proccess the form with cakephp to save to the db and email the registrant.
The email will go out to around 10,000 recipients - so i guess worse case scenario is they all open it at once and click to go to the site, if unlikely.
Is VPS required for this, or will cloud hosting do it? How do people go about estimating that?
Is VPS required for this, or will cloud hosting do it?
In general cloud hosting means a VPS, and then some. Usually the difference is that cloud providers often provide other services (like maybe a CDN, robust APIs, etc) and provide on-demand usage-based billing. This sounds perfect for you since you can just spin up additional instances (if you have a proxy/load balancer) or resize your instances if you find yourself running out of CPU or RAM.
However, cloud services can be a bit ambiguous at times, so let me break it down further. If you are considering a VPS you probably want to go with a provider that gives you a "cloud" VPN where with on-demand (hourly) billing so you can add/resize your VPNs as needed. My current favorite is Rackspace Cloud Servers, but others (like Amazon EC2) are good too. The main reason I prefer Rackspace is that the instances aren't transient (all data is gone on reboot) like Amazon's, which can complicate system architecture.
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I know this question was asked early last year, but I'm interested if anything has changed (its mid-April 2011)? I basically want to know if GAE is dying or growing?
Is there a current comparison anywhere of who's using cloud services from Amazon, MS, and Google?
GAE is definitely growing. For computationally light python webapps I would say that there's few to none better services available, primarily because of the on demand charges. With amazon you always have to have an ec2 instance of some form or another running, but with GAE you can go days between visitors and not pay a cent until somebody visits your site. I've had a fairly complex app running primarily doing web scraping of about 3000 pages a day and I've only paid $0.02 so far when I accidentally set up a loop that wasn't exiting properly.
However I am coming from a python perspective. The elastic beanstalk on amazon seems to be java focused so it's nothing I have any experience with.
There was a comparison of GAE, Amazon Bean Stalk and CloudBees recently.
It relates to using PaaS for Java applications but you can see if it helps you.
J-Shootout
I myself don't know which is best, but I would keep an eye out for Cloud Foundry VMWare's PaaS solution seems like a really good deal if it can live up to the hype.
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I'm going to deploy my application on one of them,
and have no idea which is better.
Amazon's Cloud services, at this time, are much more general and flexible, while Google App Engine essentially fits some specific classes of applications that can live within its specific limitations (those limitations are being gradually relaxed, as GAE adds features and allows you to pay to exceed certain quotas, but that does not mean GAE will become a completely general-purpose platform the way Amazon's services are).
If your app can live within GAE's limitations, then GAE presents advantages: free up to a certain quota, almost no system configuration / administration overhead, etc. But if you need total flexibility -- for example, if you want to code part of your apps in C or C++, and that's just one of many examples -- then GAE is not suitable, while Amazon (for a price, in both money and sysadm overhead) can accomodate you.
If you've already written your app, and just want to deploy it, I'd have to say AWS is your best bet. AWS is a platform (or rather, EC2 is), and deploying an existing app is easy. App Engine, on the other hand, provides an entire development environment, at a much higher level of abstraction, which has significant advantages when it comes to scaling, but requires you to have written your app to work on it.
Now how about Free Amazon EC2 for a year to do a better comparision. Check this out.
http://www.buzzingup.com/2010/10/amazon-announces-free-cloud-services-for-new-developers/
No one is king in this field because both amazon and google have their own pros and cons. for the finally decision you have to study deep about both or you have to analyze what you required for you apps.
no doubt aws is old in this field and they have lot of good quality stuff but remember google is fast growing in cloud computing.
personally aws is easy to use and training and support is easily available on the other side google is his early stage and bit complex interface for newbie
so you can learn from you requirement