…, we're going to use something new and shiny. We started out using Amazon's SimpleDB, but were soon hindered by its limitations.
We built Scalarium on Rails, so it was only natural that we started writing our own ActiveRecord-like persistence layer. First, we wrote it to work with SimpleDB, and it was aptly called SimplyStored.
Later, after some first exposure to CouchDB, we decided to use it instead. It was gaining some traction, and we had good access to local community …
…hosted database service. On completion of that migration, we started a second migration, this time from SimpleDB to F1 ). Both of these transitions have been successful, but have …. The first transition was key to our move from our own data center to ' cloud. The second was key to our expansion from one AWS Region to multiple geographically-distributed Regions -- today serves traffic out of two AWS Regions, one in , the other in (
…for storage and the maximum size for a single item always includes attribute names, just like with SimpleDB.
To give you an idea how pricing works out, here's a simple calculation. 100 GB of data, 1000 reads per second, 200 writes per second, item size is 4 KB on average. That's $ 1253.15 every month, not including traffic. Add 10 GB of data the second month and you're at $ 1263.15. You get the idea. Pricing is much more affected by read and write operations vs. item size. Make …
SimpleDB (in the form of an)
This covers the most used items of the RTurk library is still being updated and supports the latter.suite though some further investigation needs to be done to see if and has been baked into the stuff. There's no 53 or Mechanical Turk support as yet, though Mark Percival's
Getting Started With aws-sdk
Installing the new officialgem is a piece of cake:
So far, "database in the cloud" options have been pretty limited. You have Amazon's SimpleDB, which is slow, eventually consistent, and not really a database except in the loosest sense of the word; there's Amazon RDS, which is a managed MySQL instance and scales up, but not out; and of course you can run database [...]
…(Simple Queuue Service) message queues, and SimpleDB domains.
File Upload Plugin
lets you edit live copy in your web app. Setup is simple and managing copy is simple, flexible and forgiving.
Cross browser testing with - Labs
Because you understand that test/behavior driven development and continuous integration make your web applications easier to develop …
…they offer a custom, non-relational, data storage solution working around their own issues called SimpleDB. But why would they improve RDS and fix a really hard problem when they already offer an alternative solution? Easy. SimpleDB forces you to redesign your architecture to work with their custom solution and, guess what? You are now locked-in to that vendor!
So the answer is yes, you can offset scalability costs if you don't use AWS or any other providers with bad IO. Now you should …
A giant step into the fully distributed future has been taken by the High . The HRD is targeted at mission critical applications that require data replicated to at least three datacenters, full Datastore semantics for entity groups , and lower consistency guarantees across entity groups.team with the release of their
This is a major accomplishment. Few organizations can implement a true multi-datacenter datastore. Other than SimpleDB…
fog is a gem by to control a variety of cloud services through a unified . It deals with both server cloud and storage based services and supports and Rackspace Files; as well as servers and on , Rackspace , vCloud and . Support is also available for Amazon and SimpleDB.
The beauty of fog is how the same code interacts with different cloud services. It uses models, an idea familiar …
such as SimpleDB, MongoDB ., , , and
Recently, MongoDB has received a lot of attention due to the following factors:
availability on many platforms
rich language support: C,, C#, , , , , , Ruby
binaryfor efficient storage
equivalent of …